Spacelabs 91369 User manual

91369 Service Manual

070-1156-00 Rev. E

All rights reserved. Contents of this publication may not be reproduced in any form without the written permission of Spacelabs Medical. Products of Spacelabs Medical are covered by U.S. and foreign patents and/or pending patents. Printed in U.S.A. Specifications and price change privileges are reserved.

Spacelabs Medical considers itself responsible for the effects on safety, reliability and performance of the equipment only if:

• assembly operations, re-adjustments, modifications or repairs are carried out by persons authorized by Spacelabs Medical, and

• the electrical installation of the relevant room complies with the requirements of the standard in force, and

• the equipment is used in accordance with the operations manual.

Spacelabs Medical will make available, on request, such circuit diagrams, component part lists, descriptions, calibration instructions or other information which will assist appropriately qualified technical personnel to repair those parts of the equipment which are classified by Spacelabs Medical as field repairable.

Spacelabs Medical is committed to providing comprehensive customer support beginning with your initial inquiry through purchase, training, and service for the life of your Spacelabs Medical equipment.

CORPORATE OFFICES

U.S.A.

Spacelabs Medical, Inc.

5150 220th Ave SE Issaquah, WA 98029 Telephone: 425-657-7200 Telephone: 800-522-7025 Fax: 425-657-7212

Authorized EC Representative UNITED KINGDOM

Spacelabs Healthcare, Ltd.

Beech House, Chiltern Court Asheridge Road, Chesham Buckinghamshire HP5 2PX Telephone: 44 (0) 1494 784422 Fax: 44 (0) 1494 794414

BirthNet, Clinical Browser, Data Shuttle, Flexport, Intesys, Mermaid, MOM, Multiview, PCIS, PCMS, PrintMaster, Quicknet, Sensorwatch, TRU-CAP, TRU-CUFF, TruLink, Ultralite, Ultraview, Ultraview Care Network, Ultraview Clinical Messenger, Ultraview Digital Telemetry, Ultraview SL, Uni-Pouch, UCW, Varitrend and WinDNA are trademarks of Spacelabs Medical, Inc.

Other brands and product names are trademarks of their respective owners.

Caution:

Rx Only

US Federal law restricts the devices documented herein to sale by, or on the order of, a physician.

Before use, carefully read the instructions, including all warnings and cautions.

Contents Page

Introduction

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Physical Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Regulatory Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Monitor Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Setup

Unpacking the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Assembling the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

SDLC Bus Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Power-ON Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Configuring the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Theory

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Major System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Printed Circuit Board Assemblies (PCBAs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Interconnect and Connector PCBAs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Bezel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Boot Sequence Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Normal Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Parameter Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

CPU PCBA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

CPU PCBA Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

I/O PCBA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Interconnect PCBA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Maintenance

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Mechanical Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Electrical Safety Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Functional Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Assembly/Disassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

Troubleshooting

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Boot Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Power-ON Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Extended Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Diagnostic Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

91369 Service Manual i

Table of Contents

Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Diagnostics Failure Messages and Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Parts

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Assembly Drawings and Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Directory of Keys

BIOMED Directory of Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Glossary

Appendix A — Electromagnetic Compatibility

Electromagnetic Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Electromagnetic Immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2

Separation Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Appendix B — Symbols 1

91369 Service Manual ii

Introduction

Contents

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Physical Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Regulatory Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Monitor Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Overview

Spacelabs Medical’s products are designed and manufactured under good manufacturing practices and in compliance with all applicable regulatory requirements. To ensure proper operation in accordance with these guidelines, this product must be maintained by trained technicians, using Spacelabs Medical authorized replacement parts.

Warnings, cautions, and notes are used throughout this manual. They are identified by the formats shown below. Be sure to read all warnings, cautions, and notes included in each section of this manual.

Warning:

Alerts the user to potentially serious outcomes (death, injury, or serious adverse events) to the patient or user.

Caution:

Alerts the user to actions to be taken to avoid non-serious injury to the patient or user, or to adverse effects to the device.

Note:

Failure to observe notifications may result in unexpected outcomes.

The 91369 monitor is a lightweight, portable monitor designed for use as a compact bedside monitor or as a battery-operated transport monitor. The monitor features a five-wire, resistive touchscreen and can be operated on either AC mains or battery power.

The single-high module slot on the right side of the monitor accepts all single-high modules, including the 90496 Ultraview parameters such as electrocardiography (ECG), pulse oximetry (SpO

Command module and 91496 Ultraview SL™ Command module, to permit the monitoring of

), temperature, and invasive pressure.

91369 Service Manual 1-1

Introduction

Figure 1-1: 91369 monitor

Physical Dimensions

Assembled weight 10.0 pounds (4.6 kg)

Dimensions

8.3 (H) × 11.7 (W) × 6.2 (D) inches (21.1 × 29.7 × 15.8 cm)

Electrical Specifications

Designed for continuous operation. Requires outlet with ground (Protective Earth) conductor. Designated Class I by applicable electrical safety standards.

AC Line Requirements

AC input voltage range 100 to 240 VAC

AC input current 1.0 A

AC input frequency range 50 – 60 Hz

91369 Service Manual 1-2

Introduction

Environmental Requirements

Operating temperature 0° to 50° C

Humidity (operating) 10% to 95% relative humidity, non-condensing

Regulatory Approvals

CSA certified. Meets IEC60601-1, UL60601-1, and CSA C22.2 No. 601.1 for electrical safety. CE marked in accordance with the Medical Device Directive 93/42/EEC.

0123

Monitor Options

The following options are available:

Table 1: 91369 Monitor Options

Option Definition

D Perioperative

N Vital Signs Calculations

O Drug Dose Calculations

Q Data Shuttle

Dual-channel internal recorder (Polish,Czech, Portuguese language support only)

R Patient Data Logger (PDL)

U Dual-channel internal recorder (no Polish language support)

Z Wireless networking

04 Four waveform zones

06 Six waveform zones

91369 Service Manual 1-3

Introduction

Display

The video input of the display conforms with the Video Electronics Standards Association (VESA) display resolution of 1024 × 768 pixels. The monitor does not support an external touchscreen.

Vertical Horizonta l

Rate 64 Hz 51.584 Hz

Front porch 58 μs 0.350 μs

Sync width 116 μs 1.985 μs

Back porch 562 μs 2.101 μs

Blank 737 μs 4.435 μs

Video clock rate 68.5 MHz 51.584 KHz

91369 Service Manual 1-4

Setup

Contents

Unpacking the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Assembling the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Power-ON Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Configuring the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Unpacking the Monitor

The 91369 monitor, one or two batteries, external AC power supply, and any optional accessories are all packaged and shipped in a single box. Keep at least one shipping box and its packing materials for reshipping, if the monitor should ever require factory service.

Caution:

Observe precautions for handling electrostatic-sensitive devices!

Note:

• Never touch electrostatic-sensitive electronic components without following proper anti-static procedures, including the use of an ESD wrist band and mat. An electrostatic discharge from your fingers can permanently damage electronic components and cause latent failures.

• All static-sensitive electronic components are packaged in static-shielding bags. Retain the bag for repackaging the component should you need to store it or return it to Spacelabs Medical for any reason.

The monitor is typically shipped as follows:

Top Assembly — Contains the main enclosure with installed CPU, power supply, and I/O PCBAs.

Accessories — Contains the external DC power supply, U.S. power cord, international power cords (if

applicable), and any cable assemblies ordered.

Before installing the monitor:

Note:

When removing items from the shipping containers, ensure that you remove ALL components from each container.

1 Unpack the received equipment.

2 Unpack the mounting hardware.

3 Conduct an equipment audit.

91369 Service Manual 2-1

Setup

Upon receiving the equipment, complete a detailed inventory to verify that the equipment you received matches your order. This inventory must include serial numbers, model numbers, and all options and cables received. Carefully inspect these items for shipping damage. If any damage is evident, immediately notify the freight company and Spacelabs Medical.

Assembling the Monitor

Power and Battery Status

The three LEDs on the monitor indicate whether the monitor is connected to the AC mains power and the status of any installed batteries. Battery status conditions are indicated as described in the following sections.

INSERT GRAPHIC HERE

Power ON/OFF

switch

Figure 2-1: Battery status information

Power LED

Battery status

LEDs

Power LED

The power LED is located immediately to the right of the power ON/OFF switch. This LED is lit whenever the monitor is connected to AC mains power via its power supply, and is not lit if the monitor is not connected to the AC mains power.

Battery Status LEDs

These LEDs are only active while the unit is connected to AC mains power.

Unlit LED

A battery LED that is neither solid ON nor flashing indicates a battery is not present.

Solid Green LED

A solid green battery LED indicates that the battery is fully charged. Only a charging cycle or a faulty battery will cause the green LED to flash, and these conditions only occur when a battery is installed in the monitor.

91369 Service Manual 2-2

Setup

Flashing Green LED — Battery Charging

A flashing green battery LED indicates an installed battery is being charged and the monitor is not completely ready to be used in transport mode. This LED flashes in a constant pattern with no delays with the monitor powered ON or OFF. The flashing is different than the battery fault detection flash.

Note:

The green LED stops flashing and stays ON when the charging cycle is complete.

Intermittent Flashing Green LED — Battery Fault Detected

An intermittent flashing green LED indicates that this battery will not hold a charge, or is taking too long to charge. The intermittent signal is a repeating pattern of a solid green LED for one second and a flashing LED for one second. An error message is also added to the error log for review by your system administrator.

To determine whether a battery is faulty, power the monitor ON using the front-panel switch and observe the message displayed along the bottom of the monitor screen. Replace a faulty battery with the same battery type.

Installing/Replacing Batteries

NiMH batteries are used in the monitor. Refer to Figure 2-2 to install one or two batteries.

Figure 2-2: Monitor battery installation

91369 Service Manual 2-3

Setup

While the monitor is operational, a single battery can be exchanged under any of the following conditions without a loss of patient data:

• The monitor is being powered by the external power supply.

• The monitor is operating on two batteries, and one charged battery remains connected at all times during the exchange.

Warning:

Batteries exposed to short circuit, high temperature, or fire may leak, vent, or explode.

Caution:

Follow the manufacturer’s recommended handling procedure. Collect and transport batteries in a manner that prevents short circuit, compacting, mutilation, or any other abuse that would compromise the physical integrity.

Connections

Refer to Figure 2-3 for available connections on the monitor’s rear panel. Refer to Figure 2-4 for available connections on the monitor’s side panel.

Rear Panel



Equipotential ground post



External power supply input



SDLC port



Alarm relay output



Video output



Serial port

  

Figure 2-3: Rear panel connections

91369 Service Manual 2-4

Setup

Table 1: Rear Panel Cables

Rear Panel

Connection







Cable, Serial I/O (RS-232) As required

Cable, Video, DB15HD Male to DB15HD Male,

1.8 m (6 feet)

Cable, SDLC As required

Cable, Monitor to Module Housing, 0.61 m (2 feet) 012-0532-02

Cable, Monitor to Module Housing, 1.22 m (4 feet) 012-0532-04

Cable, Monitor to Module Housing, 2.44 m (8 feet) 012-0532-08

Cable, Monitor to Module Housing, 3.05 m (10 feet) 012-0532-10

Description Part Number

012-0593-00

Caution:

For continued electromagnetic interference (EMI) radiation compliance, use only cables that have been tested and approved by Spacelabs Medical. Refer to numbers.

Table 2 on page 6-3 for all cable part

91369 Service Manual 2-5

Side Panel

Setup



USB ports



10/100BaseT network connection





Figure 2-4: Side panel connections

Note:

The USB ports are to be used for Spacelabs-approved devices only (Symbol/Metrologic barcode scanner and Microsoft USB keyboard/mouse devices).

Table 2: Side Panel Cables

Side Panel

Connection



Cable, Ethernet, 10/100BaseT, 0.94 m (3 feet) 175-0951-00

Cable, Ethernet, 10/100BaseT, 1.8 m (6 feet) 175-0951-01

Cable, Ethernet, 10/100BaseT, 3.7 m (12 feet) 175-0951-02

Description Part Number



91369 Service Manual 2-6

Cable, Ethernet, 10/100BaseT, 6.1 m (20 feet) 175-0951-03

Setup

Cabling

Maximum Cable Lengths

The following cables are limited to the indicated maximum length:

• SDLC Cable — 12.2 m (40 feet) maximum (total length from the monitor to the last device on the bus). For longer SDLC cable runs, contact a Spacelabs Medical Field Service Engineer.

• Video Cable — 30.5 m (100 feet) maximum (total length from the monitor to the last display).

• Ethernet cable (10/100BaseT) — 100 m (328 feet) maximum.

SDLC External Devices

External devices (for example, Flexport® system interfaces) can be connected to the SDLC bus. (In this context, the term “external” means connected to the SDLC bus by cable via an external connector. This is in contrast to modules, which are connected by inserting them into a module housing.)

If no supplementary module housings are present (in addition to the module slot integral to the monitor itself), then external devices are connected directly to the SDLC connector of the monitor.

If one or more supplementary module housings are present, Flexport devices are connected to connector J2 on one of the 90499 or 90491 supplementary module housings, or J3 on model 90485. Refer to the Module Housings and Power Supplies Service Manual (P/N 070-0680-xx).

If multiple module housings are present, external devices must be connected to the last module housing in the daisy-chain; that is, the housing electrically farthest from the monitor on the SDLC bus. Even though multiple connectors may be available, only the SDLC connector on the most distal module housing can be used for connecting external devices. Do not use more than a single Flexport connector, regardless of how many module housings are present.

If multiple Flexport interfaces are to be installed, they must be daisy-chained using the T-cable supplied with those devices. Up to three Flexport interfaces may be connected in this way.

Warning:

Unreliable system operation will occur if the SDLC bus is not correctly terminated or the maximum cable length is exceeded. Flexport interfaces must be attached to the most distal module housing on the SDLC bus.

SDLC Cable Interconnection

To ensure electromagnetic interference (EMI) compliance, the appropriate Spacelabs Medical 9-pin connector must be used. Refer to the Module Housings and Power Supplies Service Manual (P/N 070-0680-xx).

91369 Service Manual 2-7

Setup

SDLC Bus Termination

The SDLC bus must be properly terminated for correct operation. If no external devices (for example, Flexports or multigas analyzers) are connected, proper termination of the SDLC bus is accomplished automatically. If external devices are connected, the switch on the module housing farthest from the monitor must be set to the terminated ( ) position. All others must be set to the non-terminated ( ) position. The SDLC clock and data signals are switched by the terminator switches and are not present “downstream” of any switch set to the

position.

Non-terminated Terminated

Figure 2-5: Terminator switch settings

Because bus termination is handled by setting the switches appropriately, an external terminator is only required when external devices are connected.

If external devices are connected, an external cable terminator is required to terminate the SDLC bus. This must be installed at the end of the SDLC bus (following the last external device). In this case, all module housings must have their switches in the position.

Note:

Flexports require a powered Flexport cable (P/N 012-0555-00) when used with the 90491/90499 module housing or 91369 monitor. SDLC data is only passed along to the external device(s) when the terminator switch (SW2) is in the

position.

Alarm Relay

Alarm output signals are available at the Nurse Alert ( ) connector instantaneously when an alarm occurs. Table 3 describes the connector pinouts for remote alarms. Figure 2-6, Figure 2-7, and Figure 2-8 illustrate the circuits for each alarm function.

External Alarm Pinout

Alarm connector pinouts are as follows:

Table 3: Connector Pinouts

2 Normally Closed

3 Normally Open

Alarm Circuit Meaning

Common

Alarm 0 (high priority)

4GND

91369 Service Manual 2-8

Setup

Table 3: Connector Pinouts (continued)

6 Normally Open

Alarm Circuit Meaning

Normally Closed

Alarm 1 (medium priority)

7 Common

8GND

9 +12 V, 140 mA

10 GND

11 GND

13 Common

Alarm 2 (low priority)

Normally Open

14 Normally Closed

Warning:

For operational safety and reliability, the following relay contact ratings MUST NOT BE EXCEEDED:

• Current = 250 ma

• Voltage = 28 V AC/DC

ALMON

+5 V

common

relay

+12 V

Relay maximum ratings:

4 8

28 V AC/DC

0.25 A

GND GND

GND

140 mA

Figure 2-6: Alarm 0 (high priority) relay schematic

91369 Service Manual 2-9

ALMON

+5 V

relay

Setup

common

Relay maximum ratings:

4 8

28 V AC/DC

0.25 A

GND GND

GND

ALMON

+12 V

140 mA

Figure 2-7: Alarm 1 (medium priority) relay schematic

+5 V

common

relay

+12 V

Relay maximum ratings:

4 8

28 V AC/DC

0.25 A

GND GND

GND

140 mA

Figure 2-8: Alarm 2 (low priority) relay schematic

91369 Service Manual 2-10

Setup

Network Installation

A typical network consists of bedside and central monitors and an optional clinical information system (Figure 2-9).

94263 Flat-panel display

94260-19 Flat-panel display

91387-38 Central #n

91387-27 Bedside #n

Ethernet Network

91369 Bedside #n

Module

M o d u l e s

Clinical

Information

System

Figure 2-9: Typical network configuration

Warning:

Ensure that the Ethernet wall plate and the shield of the Ethernet connecting cable are bonded to the hospital grounding system.

Ethernet Network Connection

Caution:

• Only qualified personnel should attempt to connect a monitor to an Ethernet LAN the first time.

• Do not connect the monitor to an Ethernet local area network (LAN) prior to configuring the

following settings. The monitor must be properly configured for LAN access before you operate the monitor. If you fail to correctly configure the monitor, you may interrupt other units also using the LAN.

Note:

Detailed installation instructions for the physical Ethernet LAN are beyond the scope of this document.

91369 Service Manual 2-11

Setup

To connect a monitor onto an existing Spacelabs Medical Ethernet LAN, complete the following steps:

1 Install the monitor on a suitable table or shelf, ensuring that the air flow to the side air intake vents is

unobstructed, or use a Spacelabs Medical mounting option.

2 Ensure that the monitor is not connected to the LAN.

3 Plug the power cord attached to the monitor’s DC power supply into a standard hospital-grade AC power

supply.

4 Power ON the monitor.

5 Enter a unique MONITOR ID, BED NAME, and SUBNET for the monitor. Refer to Network Setup on page 2-

13 for more information.

6 Attach the 10/100BaseT LAN transceiver cable into the RJ45 connector on the left side of the monitor

(

 in Figure 2-4 on page 2-6).

7 Connect the other end of the Ethernet cable from the monitor to the nearest port.

8 Configure the monitor’s other network settings as necessary to ensure proper communication on the

network. Refer to

Network Setup on page 2-13.

Ethernet Network Disconnection

To remove a monitor from the LAN, disconnect the network cable from the 10/100BaseT network connection (

 in Figure 2-4 on page 2-6).

Power-ON Test

Each time the monitor is powered ON:

• Diagnostic information displays for approximately 10 seconds.

• The embedded alarm light cycles red and yellow. Some models may cycle red, yellow, and cyan.

• Monitor keys display on the right side of the screen.

The monitor is now ready for normal operation.

External Devices

If an external SDLC device, such as a Flexport interface, is to be installed, the 9-pin SDLC connector on the rear of the monitor or the module housing must be used. If multiple SDLC ports on module housings are available, only the SDLC port on the module housing farthest from the monitor can be used for external devices. Set the termination switch to non-terminated ( ) for all module housings and then terminate the external device.

91369 Service Manual 2-12

Setup

Module Tests

To verify that the monitor functions correctly with parameter modules:

1 Insert an ECG module without the patient cables connected. Verify that the ECG parameter key is

displayed.

2 Connect a patient simulator to the ECG input with a 5-lead patient cable, and set the simulator to a known

rate.

• Verify that the heart rate and lead being monitored are displayed to the right of the ECG parameter

key.

• Verify that the ECG waveform is displayed.

3 Disconnect the patient cable. After 10 seconds, verify that the LEADS OFF message appears, the

parameter key flashes, and an alarm tone sounds.

4 Reconnect the patient cable and verify that the LEADS OFF message clears and the alarm stops.

5 Connect a patient simulator to the invasive pressure inputs.

6 Zero the pressures and verify that the numerics and waveforms are accurate.

7 Verify that the key tone sounds each time a key is selected.

Configuring the Monitor

The Biomed Level menu displays when the biomed password (default is biomed) is entered into the

Privileged Access window. Refer to Directory of Keys on page 7-1 for the Biomed Level menu structure.

Network Setup

Note:

The NETWORK SETUP key only displays on monitors that are configured for network operation.

Touch NETWORK SETUP to display the Monitor Setup - Network Configuration window. This window contains an on-screen keyboard and three tabs: TCP/IP, Monitor, and Printers. Proper network operation requires that each device on the network have a unique network address, monitor ID, and monitor name. If the wireless option has been installed on the monitor, three more tabs will be present: WLAN, Security, and

Advanced.

Editing Tab Fields

The fields within a tab on the Monitor Setup - Network Configuration window can be edited by selecting the field and entering new information using the on-screen or optional external keyboard.

When editing, adding, or deleting, press ENTER or TAB to cycle to the next input cell. Any changed or added items are stored in the monitor’s non-volatile memory when SAVE is selected. The description of each tab indicates when that change takes effect (for example, immediately or after a monitor reset occurs).

To edit text within a tab:

1 Select an item from the list.

-OR-

91369 Service Manual 2-13

Setup

2 Select an input cell’s text and type any combination of letters, characters, or spaces.

To add an item to a list:

• Select the input cell and type the new information.

To delete an item from a list:

1 Select the item.

2 Touch Del.

3 Enter at least one space (an error message is displayed if no spaces are entered).

TCP/IP Tab

Figure 2-10: TCP/IP tab

The TCP/IP tab enables you to define the monitor’s attributes for networking.

IP Address — Enables you to specify the monitor’s IP address. The default is 164.90.254.10. Either a static IP

address must be specified, or DHCP networking must be enabled.

Subnet Mask — Enables you to identify which parts of the IP address are to be used for TCP/IP subnet determination. The TCP/IP network’s subnet mask is not related to the Spacelabs Medical network’s subnet name. The standard and factory-default subnet mask is 255.255.255.0. Either a subnet mask must be specified, or DHCP networking must be enabled.

Gateway Address — Enables you to specify the IP address of the TCP/IP gateway (bridge or router) though which communication to other devices should flow. The default is blank.

DHCP — (Dynamic Host Configuration Protocol) Used to configure and enable DHCP network configuration. When DHCP is enabled, IP Address, Subnet Mask, and Gateway Address are automatically filled in. To use this service, a DHCP server must be available on the network to respond to DHCP requests.

91369 Service Manual 2-14

Setup

Note:

• A DHCP lease is a TCP/IP configuration given out from the DHCP server that is valid for a period

defined by the DHCP server or forever (no expiration).

• Monitors configured for DHCP operation request a lease from the DHCP server when they boot up or

when their existing lease expires during operation. If the DHCP server is not present, the monitor checks the expiration time of the last DHCP lease obtained. If the lease is still valid, the monitor continues to use those values and operates normally. If the lease has expired, the monitor disables TCP/IP networking and displays a NETWORK SIGNAL LOST message to indicate that it is unable to communicate over the network. The monitor continues to request a DHCP lease until it receives one.

• If the monitor’s configured DECNET node ID is a duplicate on the network, the DHCP server can be

confused. This may result in a duplicate or invalid DHCP lease and may prevent full network communication.

• The subnet mask must correctly correspond to the network size and type during operation. Monitors

may not be able to fully communicate with each other if the DHCP server fails to set the network mask properly.

The DNS server address is in standard TCP/IP address form, while the DNS default domain is a string of ASCII characters. A DHCP server may also provide this information.

Editing this tab is performed as described in Editing Tab Fields on page 2-13. Tabbing order is IP Address >>

Subnet Mask >> Gateway Address >> DHCP >> DNS Server Address >> DNS Default Domain >> IP Address. Changes made to this tab’s settings take effect after a successful save and monitor reset.

Secondary Display — The Secondary Display field is only available if option -D, Perioperative, has been

activated.

Select ENABLE on the TCP/IP tab to activate the primary monitor’s secondary display. When you enable the secondary display, the IP Address and Secondary Hostname fields become available and must contain a valid entry for the secondary monitor to operate. The IP Address and Secondary Hostname fields are exclusive to each other.

Enter a valid IP Address when your network is using static IP addresses.

-OR-

Enter a valid Secondary DNS hostname when your network is using DHCP for network configuration.

Changes made to the Secondary Display settings take effect after the changes have been saved.

91369 Service Manual 2-15

Monitor Tab

Setup

Figure 2-11: Monitor tab

The Monitor tab enables you to determine what monitor names, monitor (node) IDs, and subnet names are currently in use. The tab also enables you to enter settings for the monitoring network.

In Figure 2-11, the monitor’s current settings are displayed in each input cell. The scroll list below each input cell displays the remaining items that have been detected on the network. Items in the Subnet Name and Monitor Name lists are displayed in alphanumeric order. Items in the Monitor ID list are displayed in numeric order.

Brackets (< >) surround strings that consist solely of spaces. The separation within the brackets indicates the number of spaces within that string.

Editing is performed as described in Editing Tab Fields on page 2-13. The tabbing order is Subnet Name >> Monitor Name >> Monitor ID >> DECNET/IP >> Network >> TTL >> Subnet Name. Network and TTL are skipped if unavailable. Changes made to this tab’s settings take effect after a successful save and monitor reset.

Subnet Name

The subnet name contains up to five characters (default is five blanks). Items in this scroll list are selectable.

Monitor Name and Monitor ID

The Monitor Name is the name given to each bedside and central monitor (does not apply to telemetry bed names) to help the users identify monitors on the network. The Monitor Name contains five characters (default is SL001).

The Monitor ID is the numeric ID assigned to a monitor. Each device on the network must have a unique Monitor ID. This can be any number from 1 to 1023, depending on the Network Size selected.

91369 Service Manual 2-16

Setup

To prevent duplication of currently used monitor names and IDs, items in these lists are not selectable. The error checking procedure performed when SAVE is selected also specifically checks for duplications.

Note:

• Items in the Monitor Name and Monitor ID lists only display when the monitor is connected to the

network.

• When entering a monitor name or ID, do not use a space between characters.

DECNET/IP

You can configure the monitor to operate using either Spacelabs DECNET or TCP/IP network protocols. If you are communicating with 903xx Spacelabs Medical monitors, you must select DECNET.

Network

The IP multicast group number of the monitor provides a filter to logically isolate one monitor from another on TCP/IP installations. Up to 32 network numbers are available (0 to 31) with 0 as the default.

Note:

• Monitors must use the same network number to communicate.

• This is unavailable if DECNET is selected.

TTL (Time to Live)

The allowed number of hops the IP packet can take across network devices. TTL values are 1 to 64, with 16 as the default.

Note:

TTL is unavailable if DECNET is selected.

Network Size

The network size allows configuration as:

64 — Monitor IDs from 1 to 64 are supported. No more than 64 total monitor devices can be on the

network. Provides complete network compatibility with legacy Spacelabs Medical monitors.

250 — Monitor IDs from 1 to 250 are supported.

Note:

903xx monitors must have the Expanded Network option installed or they will not communicate correctly with devices with Monitor IDs above 64.

640 — Monitor IDs from 1 to 127 and from 512 to 1023 are supported with the following restrictions.

• All model 903xx Spacelabs Medical monitors must use monitor IDs 1 to 127, inclusive.

• All model 91xxx monitors must be configured with monitor IDs from 512 to 1023, inclusive.

1000 — Monitor IDs from 1 to 1023 are supported (compatible only with Spacelabs Medical 91xxx series monitors).

91369 Service Manual 2-17

Setup

Printers Tab

The Printers tab enables you to display controls for defining and storing printer names, choosing rules for printer selection, and selecting one or two network printers.

Figure 2-12: Printers tab

Editing is performed as described in Editing Tab Fields on page 2-13. The tabbing order is AUTO / PRIM/ BACKUP >> Printer A (or Primary) >> Printer B (or Backup) >> Printer Names (refer to Figure 2-13 on

page 2-19). Changes made to this tab’s settings take effect after a successful save and monitor reset.

Printer Names

The Printer Names list displays up to eight, selectable printer names previously stored in the monitor, in the order in which they were stored. To display a new or changed name in the list, select that printer name from the list. Printer names contain up to five characters (default is five blanks).

Note:

• Printer names are explicitly entered and may be duplicated. To clear a printer name from the list, select

that name, touch Clear, touch Enter, and then touch SAVE.

• A local (SDLC) printer can be either a bedside printer or network printer, depending on the printer name

selected in this list. A local printer is configured as a network printer if the local monitor’s name is selected. Otherwise, a local printer functions as the bedside printer.

91369 Service Manual 2-18

Setup

AUTO / PRIM/BACKUP

The AUTO / PRIM/BACKUP key selects which set of printer selection rules the monitor uses for selecting network printers. It does not affect the monitor’s selection of whether a networked or non-networked printer is used. Any changes made to the printer selection mode using this key take effect immediately, regardless of monitor type. The default setting is AUTO, which selects the destination printer using the weight-based printer selection rules. (Refer to the Ultraview SL Operations Manual, P/N 070-1150-xx, located on CD-ROM P/N 084-1101-xx for additional information).

When PRIM/BACKUP is selected, the monitor automatically selects the primary printer, unless that printer is unable to accept the recording. In that instance, the monitor then selects the backup printer. If the backup printer is also unable to accept the recording, the monitor displays an Unable to record message.

Printer Selection Fields

The default for the printer selection fields is blank (i.e., no printer selected). The labels above these fields vary, based on the current setting of the AUTO / PRIM/BACKUP key. If AUTO is selected, the labels are Printer A and Printer B. If PRIM/BACKUP is selected, the labels are Primary and Backup (Figure 2-13).

Figure 2-13: AUTO / PRIM/BACKUP selection differences

To define a printer name:

1 Select a printer name from the Printer Names list.

2 Select one of the two printer selection fields. The new value displays in the selected field.

WLAN Tab

This tab allows the operator to set basic wireless local area network (WLAN) related settings.

The WLAN tab only displays on monitors that are configured for wireless operation (option -Z). Monitors are configured for wireless operation by selecting the sysgen RADIO option. The RADIO ON/OFF keys and all other input cells and combo boxes illustrated in Figure 2-14 are not available for selection if the radio is not present.

Caution:

Do NOT power the radio ON until all network configuration has been completed. Powering the radio ON with the monitor set to the factory defaults could interfere with the wireless network.

91369 Service Manual 2-19

Setup

Figure 2-14: WLAN tab

The tabbing order is RADIO ON/OFF >> SSID >> Region >> Outbound Parameters >> Wireless DHCP >> WLAN IP Address >> WLAN Subnet Mask >> Gateway Address >> RADIO ON/OFF. WLAN IP Address, WLAN Subnet Mask, and Gateway Address are not available in the tabbing order if Wireless DHCP is

selected. Changes made to this tab’s settings take effect after a successful save and monitor reset.

RADIO ON/OFF (default = OFF)

The RADIO ON/OFF setting defaults to OFF when a radio is present. If this key is toggled to ON, and SAVE is selected without a valid region defined [refer to Region (default = blank) on page 2-22], an error box displays (the radio cannot be switched to ON if the Region setting is invalid). Select OK to remove the error box. The RADIO ON/OFF key automatically toggles back to OFF.

The radio will function only if this key is set to ON. Keys, input cells, select boxes, and combo boxes are enabled without regard to the setting of this key. However, WLAN communication only occurs if ON is selected.

Note:

Any change in the wireless tabs (except for the setting of the OUTBOUND PARAMETERS input cell) requires a monitor reset before the changes take effect.

To activate the radio-only functions, select ON.

Wireless DHCP (default = OFF)

The Wireless DHCP tab is similar in function to the DHCP key on the TCP/IP tab, but for wireless networks. When Wireless DHCP is selected, the monitor asks the wireless DHCP server for the following information:

• WLAN IP Address

• WLAN Subnet Mask

• Gateway Address

91369 Service Manual 2-20

Setup

The affected input cells then display the values provided by the wireless DHCP server, rather than the values from the monitor’s non-volatile memory. These cells then become unavailable for selection, to prevent these values from being changed, until Wireless DHCP is de-selected.

If Wireless DHCP is selected, as in Figure 2-14 on page 2-20, DNS Server Address and DNS Default Domain values display, and the WLAN IP Address, Wireless Subnet Mask, and Gateway Address input cells are unavailable for selection.

When Wireless DHCP is not selected, the DNS Server Address and DNS Default Domain values disappear, and the WLAN IP Address, Wireless Subnet Mask, and Gateway Address input cells are available.

Table 4: Wireless DHCP Input Cells

Is this cell

Can the wireless

Cell name

WLAN IP Address Yes Yes No

WLAN Subnet Mask Yes Yes No

Gateway Address Yes Yes Yes

DHCP server provide

this information?

unavailable if the

wireless DHCP

server provides the

information?

Can the cell be left

blank?

Note:

Input cells that display wireless DHCP server-provided data may display values different than what is stored in the monitor’s non-volatile memory. DHCP server-provided values are not stored in non-volatile memory.

SSID (default = blank)

The SSID cell is used to define the WLAN Service Set Identifier (SSID) setting, which is the name used by acceptable access points (AP) for that WLAN. This field is up to 32 characters long, and it may contain any combination of case-sensitive characters. The default is blank.

Setting SSID and Security Mode

If enabled, WLAN card communication through the wireless network depends on the interaction between the WLAN card SSID setting (refer to SSID (default = blank)) and its security settings (refer to Security Tab on page 2-24).

91369 Service Manual 2-21

Setup

The WLAN card SSID and security settings must match the settings of the intended access point (AP). If the settings do not match, then wireless communication cannot occur.

Table 5: WLAN Card and Security States

SSID

No Match

SSID Matches

Security

Mode

WEP Disabled

WEP Enabled

WEP Disabled

WEP Enabled

WEP

Authentication

Open N/A No No

Shared Key N/A No No

Open N/A Yes Yes

Open Yes Yes Yes Yes

Open No Yes No No

Shared Key Yes Yes Yes Yes

Keys

Match?

Monitor

Associated?

Monitor

Authenticated?

Communication

No — SSID must always match

Yes, but only if Security Mode on AP matches (WEP optional)

Can Wireless

Occur?

SSID Matches

Region (default = blank)

This input cell displays the monitor’s current setting for the WLAN region. This cell is available for 802.11 radios that are configurable in the field. Region values and their corresponding geographical regions are listed in Table 6. The frequencies available in a particular country differ according to the regulations of that country. Consult your national and local regulations.

91369 Service Manual 2-22

WEP Enabled

Shared Key No No No No

Table 6: Region Codes

Value Center Frequency Range Region

Blank Disabled

1 2412 to 2472 MHz

2 2412 to 2462 MHz North America

Europe (ETSI), except France

and Spain

Setup

Table 6: Region Codes

Value Center Frequency Range Region

3 2412 to 2472 MHz Japan (MKK)

4 2457 to 2462 and 2484 MHz Japan

5 2412 to 2472 MHz France

6 2457 to 2462 MHz Spain

Note:

Selecting SAVE when the currently entered value for Region is not valid displays the “Cannot switch Radio ON with invalid region” error dialog box. Selecting OK toggles RADIO ON/OFF to OFF, disabling the radio.

Outbound Parameters (default = 5)

This input cell displays this monitor’s configuration setting for the number of parameters that are displayed in bed selection dialog boxes. Valid values range from 0 through 6 (default = 5), with blank equating to 0.

MAC Address

The radio’s assigned MAC address (in hexadecimal) displays below this label.

DNS Server Address and DNS Default Domain

The radio’s DHCP server-assigned DNS server address (in IP format) and DNS default domain name (in text) display below these labels, but only when Wireless DHCP is selected.

WLAN IP Address (default = 0.0.0.0)

Allows the operator to specify the IP address for the wireless network interface, when Wireless DHCP is not selected.

WLAN Subnet Mask (default = 0.0.0.0)

Allows the operator to identify which parts of the wireless IP address to use for TCP/IP subnet determination, when Wireless DHCP is not selected. Wireless subnet mask is not related to the Monitoring network’s subnet name or subnet mask.

Gateway Address (default = 0.0.0.0)

Allows the operator to specify the IP address of a wireless TCP/IP gateway (bridge or router) through which wireless communication to other devices should flow, when Wireless DHCP is not selected. The Gateway address on the WLAN tab is not related to the Gateway address on the TCP/IP tab.

91369 Service Manual 2-23

Setup

Security Tab

The Security tab provides access to the WLAN security settings. The Security tab only displays on monitors that are configured for wireless operation.

Figure 2-15: Security tab

In the left portion of Figure 2-15, Security Mode is set to Disabled in the Security Mode combo box pull-down menu. In the right portion of Figure 2-15, Security Mode is set to WEP128, after entering hexadecimal keys.

Note:

Any entered WEP keys are erased if Security Mode is set to Disabled and the new setting is saved. If Disabled is selected but not saved, the WEP keys are not erased.

The tabbing order depends upon the currently selected setting for Security Mode.

When Security Mode is set to Disabled, the tabbing order is Security Mode >> SAVE >> Security Mode.

When Security Mode is set to a WEP setting, the tabbing order is Security Mode >> Authentication Mode >> Transmit (WEP Key1) >> Transmit (WEP Key2) >> Transmit (WEP Key 3) >> Transmit (WEP Key4) >> WEP Key1 >> WEP Key2 >> WEP Key3 >> WEP Key4 >> Security Mode. Changes made to this tab’s settings take effect after a successful save and monitor reset.

Note:

• In the tabbing order, the position of input focus on the combo boxes and the EDIT keys is not visually

apparent. Input focus on a key can be determined by selecting the ENTER key on the keyboard (the key highlights). Selecting one of the WEP keys also clears the input cell to its right, enables that input cell and gives it input focus). Input focus on a combo box can be determined by using the up or down arrow keys on a USB keyboard to move through the list items.

• The tabbing order skips the SAVE key when that key is unavailable.

Security Mode

A combo box displays the monitor’s current Security Mode selection and provides the operator with a way to change that selection. This setting determines whether WLAN operation is disabled (not encrypted) or is enabled with encryption using either the WEP40 or the WEP128 protocols.

Whenever Disabled is selected, the only other items displayed within the tab are the Authentication Mode key (disabled with OPEN selected) and the SAVE key. If Disabled is selected and saved, the SAVE key becomes unavailable.

91369 Service Manual 2-24

Setup

Selecting WEP40 or WEP128 enables the Authentication Mode setting (the selection does not change) and displays Transmit Key with four keys below it. WEP Key1 through WEP Key4 display with corresponding input cells.

When Security Mode is set to WEP40 or WEP128, the WEP keys and the key sizes for the WLAN APs and wireless monitors must be identical for wireless communication to occur.

Changing Security Mode from Disabled to WEP40 or WEP128 causes a working WLAN to stop working, if the WEP keys and key sizes do not exactly match throughout the WLAN.

If the WLAN security settings have never been configured, or if you are changing the setting from Disabled to WEP40 or WEP128, then the four WEP key input cells are blank. If the WLAN security settings were previously configured, then the four WEP key input cells reflect whether that WEP key was defined (see WEP Keys).

Transmit Key

These four keys indicate which of the available WEP Keys is used for wireless data transmission. By default, none of these keys are selected. Selecting any of these four keys displays an “x“ mark within that key and cancels the selection of any other previously selected transmit key.

WEP Keys

A WEP key is either 10 or 26 hexadecimal characters in length, depending upon whether the selected WEP key size is 40 or 128 bits, respectively.

A WEP key can be cleared or entered. After it has been entered, the hexadecimal entry cannot be edited (it must be re-entered). The WEP key input cells, labeled WEP Key1, WEP Key2, WEP Key3, and WEP Key4, indicate whether that WEP key is defined for use when WEP security is selected. These input cells are blank if a WEP key has not been entered. If you accidentally delete a WEP key that was needed, and you have not saved this change, you can restore the WEP key setting by exiting NETWORK SETUP and then returning to NETWORK SETUP.

A WEP key input cell reflects the characters being typed during input of a WEP key. After the WEP key is stored, the input cell for the entered WEP keys displays one asterisk for each character in the stored WEP key (10 asterisks if the selected key size is 40; 26 asterisks if it is 128). This indicates that the key was defined, but the value is hidden for security purposes.

If the WEP key is non-null when a key size change occurs, then the contents of the WEP key input cells clear.

Selecting a WEP key

Selecting any of these four keys (WEP Key1, WEP Key2, WEP Key3, or WEP Key4) highlights that key, disables any available WEP key input cell, enables the WEP key input cell to the right of the selected key, clears the contents of the enabled input cell, and positions the cursor at the far left of that input cell.

Authentication Mode

The 802.11b WLAN cards (radios) that Ultraview SL monitors use for wireless networking support two methods of authentication between wireless clients and the AP: Open and Shared Key. Wireless networking is only available if the authentication modes of the AP and the WLAN card match.

Setting Security Mode to Disabled disables this key, with OPEN selected.

91369 Service Manual 2-25

Setup

OPEN Authentication

Open authentication simply requires that the SSID for the monitor’s WLAN card match that of the AP. The AP must also be set for open authentication. Refer to Table 5 on page 2-22.

Shared Key authentication

In Shared Key authentication, the AP sends the monitor’s WLAN card a challenge text string that the WLAN card encrypts (using its WEP key) before returning it to the AP. If the monitor’s WLAN card WEP key does not match the AP’s WEP key, the AP rejects the encrypted text and will not allow the WLAN card to associate with it. Refer to Table 5 on page 2-22.

Advanced Tab

The Advanced tab provides access to the advanced WLAN settings. The Advanced tab only displays on monitors that are configured for wireless operation. The left window of Figure 2-16 displays the Advanced tab; the right window illustrates the window with the Data Rate combo box displayed. Changes made to this tab’s settings take effect after a successful save and monitor reset.

Figure 2-16: Advanced tab

Editing this tab is performed as described in Editing Tab Fields on page 2-13. The tabbing order is Data Rate >> RTS Threshold >> Fragmentation Threshold >> Data Rate.

Note:

In the tabbing order, position of input focus on the combo box is not visually apparent. Input focus on a combo box can be determined by using the up or down arrow keys on a USB keyboard to move through the list items.

Data Rate (default = blank)

A combo box displays the current WLAN Data Rate selection. The operator may change that selection using this combo box.

When selecting a Data Rate, select the maximum data rate that the WLAN interface should use when sending unicast and multicast data packets. The WLAN interface uses a lower rate if reliable network communication cannot occur at the selected higher data rate.

91369 Service Manual 2-26

Setup

RTS Threshold (default = 0)

Valid values are in the range of 0 to 2339, inclusive.

Fragmentation Threshold (default = 0)

Valid values are in the range of 256 to 2338, inclusive. The default setting is 0.

Network Configuration Messages

The following messages may occur if a networking entry is misconfigured. The default setting is 0.

Cannot switch Radio ON with invalid region

Monitors display this warning if the value displayed in the Region input cell on the WLAN tab [refer to Region (default = blank) on page 2-22] is invalid and SAVE is selected.

TTL XX is out of range (either < 1 or > 64)

Where XX is the value entered in the TTL cell on the Monitors tab. (Monitors display this warning when the TTL input cell loses focus if the entered value is not within the valid range.) If the value entered is nonnumeric,

then the displayed value changes back to the most recently saved numeric value.

WEP KeyY invalid. This key should be 26 HEXADECIMAL characters

(when WEP128 is selected);

-OR-

WEP KeyY invalid. This key should be 10 HEXADECIMAL characters

(when WEP40 is selected).

Monitors display one of these warnings if the value entered in that WEP key’s input cell on the Security tab contains a nonhexadecimal character and SAVE is selected.

Wireless configuration out or range error messages

Monitors display one of the following warning messages if that input cell’s value for the WLAN is out of range, and SAVE is selected. XXXXX represents the entered value.

Wireless Fragmentation Threshold XXXXX is out of range (either <256 or > 2338) (Advanced tab).

Wireless RTS threshold XXXXX is out of range (either <0 or >2339) (Advanced tab).

Wireless outbound parameters XXXXX is out of range (either <0 or > 6) (WLAN tab).

Invalid Region Code — XXX (either <0 or > 99) (WLAN tab).

Note:

If the invalid IP address or subnet mask is related to use of the WLAN, monitors that are configured for radio/WLAN operation append “WLAN” to the start of the error messages describe below.

91369 Service Manual 2-27

Setup

Gateway Address xx.x.xxx.xxx is out of range or invalid

Refers to the WLAN tab. Monitors display this on the keyboard window’s error line or in a warning dialog box if the form of the IP address is invalid (not in the form xxx.xxx.xxx.xxx, where X is a number) and SAVE is selected.

WLAN IP address xxxxx is out of range or invalid

Refers to the WLAN tab. Same as for Gateway Address xx.x.xxx.xxx is out of range or invalid, where xxxxx is the entered IP address.

WLAN Subnet Mask xx.x.xxx.xxx is out of range or invalid

Refers to the WLAN tab. Same as for Gateway Address xx.x.xxx.xxx is out of range or invalid.

Serial Ports

Refer to Directory of Keys on page 7-1 for the menu structure.

Patient Data Logger (Option R)

The Patient Data Logger option automatically sends patient vital signs from the monitor to a serial external device, such as a printer or a terminal. Episodic patient data is also sampled and transmitted. The output is in the form of ASCII text byte strings and is printed using standard RS-232 serial communications via the monitor’s serial port (refer to the Ultraview SL Operations Manual, P/N 070-1150-xx, located on CD-ROM P/N 084-1101-xx for configuration information).

This option continues to send data whether the external device is on-line or off-line. Data transmission can be stopped by reassigning the data port or disabling the Patient Data Logger option.

Communication between the monitor and the external device is set up by assigning the serial port to Patient Data Logger and then adjusting the serial port settings. The various serial settings can be adjusted to suit the device attached to the serial port.

To set up Patient Data Logger:

1 Touch MONITOR SETUP.

2 Touch PRIVILEGED ACCESS.

3 Enter the biomed password (default is biomed).

4 Touch SERIAL PORTS.

5 Touch ASSIGNMENT.

6 Touch DATA LOGGER.

7 Touch PREVIOUS MENU.

91369 Service Manual 2-28

Setup

Vitalink

Vitalink is a Draeger-defined asynchronous serial communication protocol for use only with Draeger devices.

To set up

1 Touch MONITOR SETUP.

2 Touch PRIVILEGED ACCESS.

3 Enter the biomed password (default is biomed).

4 Touch SERIAL PORTS.

5 Touch ASSIGNMENT.

6 Touch VITALINK.

7 Touch PREVIOUS MENU.

Vitalink:

Serial Settings

To set serial settings:

1 Touch SETTINGS.

2 Touch the desired setting key(s) to display and set the desired settings.

3 Touch NORMAL SCREEN to effect changes.

Monitor Calibration

The MONITOR CALIBRATION key in the Biomed Level menu allows you to perform a touchscreen calibration in the event the touchscreen becomes difficult to use or a replacement has been installed. Refer to Touchscreen Calibration on page 4-4 for instructions on performing this calibration.

Change Biomed Password

The CHANGE BIOMED PASSWORD key in the Biomed Level menu enables you to change the password used to access the Biomed Level menu.

To change the biomed password:

1 Enter the current biomed password in the Password field using the on-screen keyboard (passwords are not

case-sensitive).

2 Enter the new biomed password in the New Password field and enter the same password again in the

Verify Password field using the on-screen keyboard.

Note:

If the biomed password is forgotten, contact your Spacelabs Medical Field Service Engineer.

91369 Service Manual 2-29

Clinical Menu

Setup

Figure 2-17: Change BIOMED Password dialog box

The CLINICAL MENU key in the Biomed Level menu provides access to several features described in the sections that follow. Refer to Directory of Keys on page 7-1 for the menu structure.

Time/Date

The TIME/DATE key accesses the Monitor Setup - Time/Date menu. The current time or date displays above the menu. The time displays in either a 12- or 24-hour format. Network monitors display the network time; standalone monitors display the internal system time.

• TIME/DATE — Select TIME or DATE, use the arrow keys to set the correct time or date, and touch ENTER.

• 24 HOURS — Displays the time in a 24-hour format. Touch ENTER to complete the selection.

• AM/PM — Select AM or PM to display the time in a 12-hour format, and then touch ENTER.

Note:

Setting the time on any networked monitor sets the time for all monitors on that network.

Preselected Recordings

Refer to the Printing chapter in the Ultraview SL Operations Manual (P/N 070-1150-xx), located on CD-ROM P/N 084-1101-xx, for information regarding preselected recordings.

Units of Measurement

The UNITS OF MEASURE key provides access to the units of measurement that the monitor uses for input, display, and printing of values for pressure, height, and weight measurements. Each key’s label indicates the available selections. Reset the monitor after making changes in this menu.

91369 Service Manual 2-30

Setup

User Access

The USER ACCESS key allows the system administrator to preset certain functions and features of the monitor for availability to non-privileged-access users.

• PATIENT TYPE / ON/OFF — Enables (ON) or disables (OFF) the “Patient Type” selection in the Admit/ Discharge dialog box.

• PARAMETER CONFIG / ON/OFF (bedside monitors only) — Displays (ON) or removes (OFF) the PARAMETER CONFIG key in the Monitor Config menu.

• RECORDING DURATION / ON/OFF — Displays (ON) or removes (OFF) the RECORDING DURATION key in the Recorder Config menu.

• SUBNET ACCESS / ON/OFF — Select ON to display keys for other care areas (subnets) within bed selection windows for features such as Alarm Watch, Remote View, or Screen Format.

• DEFAULT ENG. SAV MODE / ON/OFF — Controls the monitor’s default-energy-saving power mode ON or OFF and changes the setting of the ENERGY SAVING MODE / ON/OFF key that appears when the monitor is operating on battery power.

Alarm Setup

Touch the ALARM SETUP key to display the following keys:

• REMOTE ACCESS / ON/OFF — Select ON to allow alarm limits from this monitor’s parameters to be changed remotely (from central monitors or from bedside monitors via Remote View).

Selecting OFF ensures that alarm limits for this monitor’s parameters can only be changed at this monitor.

• ALARM SUSPEND / ON/OFF — Select ON to enable access to the TONE RESET/ALM SUSPEND key’s Alarm Suspend function.

• TREND SUSPEND / ON/OFF — Select ON to allow trending to occur when all alarms are suspended via the ALARM SUSPEND key.

• ALARM RELAY — Allows characteristics of the monitor’s external alarm relay to be defined. When an alarm occurs, this relay can activate an external device to identify which monitor is in alarm. In general terms, monitors activate their alarm relay whenever an alarm is occurring on that monitor.

- RELAY TIMEOUT / 0 SEC/10 SEC — Select 0 SEC to deactivate the alarm relay when the alarm ends.

Select 10

- FLASHING/STEADY ON — Controls whether the alarm relay is intermittently activated (FLASHING) or

is continuously activated (STEADY ON) when an alarm occurs. Intermittent activation is normally used when connecting to an external light. Continuous activation is normally used when connecting to a nurse call button (or similar equipment).

Note:

Setting the monitor ALARM RELAY to either FLASHING or STEADY ON does not affect the 91369 embedded nurse alert light.

- ALARM LEVEL — The alarm relay can be activated for all alarms or for alarms at or above the selected

priority only. Selections of HIGH, MEDIUM, and LOW are available. For example, selecting MEDIUM results in activation of the alarm relay for HIGH and MEDIUM priority alarms, but not for LOW priority alarms.

SEC to deactivate the alarm relay 10 seconds after the alarm ends.

91369 Service Manual 2-31

Setup

• QRS/SPO2 TONE ENABLE / ALWAYS/DURING ALARM — Controls whether the monitor sounds the QRS or SpO SpO

tone must also be enabled using the controls within those parameters’ menus.

Alarm Watch Setup

The ALARM WATCH SETUP key controls how the monitor responds to alarm watch messages received from other monitors.

• ROTATE ALARM WATCH / ON/OFF — This key enables (ON) and disables (OFF) the alarm watch rotation feature (default is OFF).

• ALARM WATCH ROTATION / PRIORITY/SIMPLE — When a monitor receives more than one alarm watch message at a time, it uses a “first-in, first-out” rotation scheme to display the alarming parameters. This key is only enabled when ROTATE ALARM WATCH is enabled. The following choices of rotation schemes are available:

- PRIORITY rotation cycles through the alarming parameters based on each parameter’s alarm priority

(for example, parameters with high-priority alarms display before parameters with medium- or lowpriority alarms).

- SIMPLE rotation cycles through the alarming parameters in the order that they go into alarm (first

come, first served).

• ROTATION TIME / 15 SEC/30 SEC — You can choose to display an alarm watch for either 15 or 30

seconds before cycling to the next alarm watch if there are two or more alarm-watched beds in alarm.

This key is only enabled when ROTATE ALARM WATCH is enabled.

tone all the time (ALWAYS) or only during alarm conditions (DURING ALARM). The QRS or

Change Clinical Password

The CHANGE CLINICAL PASSWORD key enables you to change the password used to access the Clinical Level menu.

To change the clinical password:

1 Enter the current clinical password in the Password field using the on-screen keyboard (passwords are not

case-sensitive).

2 Enter the new clinical password in the New Password field and enter the same password again in the

Verify Password field using the on-screen keyboard.

Note:

If the clinical password is forgotten, contact your system administrator.

Reset Monitor

The RESET MONITOR key allows you to reboot the monitor after changing settings for the following items (the monitor must be rebooted before these changes can take effect):

• Subnet access

• Units of measurement

Touching the RESET MONITOR key displays the Reset Monitor dialog box. Select Reset Monitor to proceed or Cancel Reset to cancel.

91369 Service Manual 2-32

Setup

Note:

Patient data are preserved when the monitor is restarted using the RESET MONITOR key.

Figure 2-18: Privileged Access - Reset Monitor dialog box

Tone Configuration

The TONE CONFIGURATION key in the Biomed Level menu enables you to configure the monitor’s alarm tone configuration. Refer to Directory of Keys on page 7-1 for the menu structure.

ISO Standard Alarm Tones

The ISO STANDARD ALARM TONES key enables you to configure the monitor for ISO (International Standards Organization) standard alarm tones and reset the values displayed in the alarm period keys, within the Configurable Alarm Tones menu, back to default settings.

Configurable Alarm Tones

The CONFIGURABLE ALARM TONES key enables you to configure the monitor for ISO standard alarm tones with a configurable repetition rate.

• HIGH, MEDIUM, LOW — The values displayed on the lower lines of the HIGH, MEDIUM, and LOW keys are the current settings (within that key’s adjustment range) for the repetition rate for that alarm’s priority.

Table 7: Alarm Period Default Values

Selected Alarm

Period Key

HIGH 0 to 30 seconds (15 seconds) MEDIUM and LOW

MEDIUM 0 to 45 seconds (30 seconds) HIGH and LOW

LOW 0 to 45 seconds (30 seconds) HIGH and MEDIUM

• ↑ and ↓ — The up and down arrow keys are enabled when one of the alarm period keys is selected. The arrow keys are used to adjust the repetition rate for the selected alarm priority in five-second increments within that priority’s adjustment range.

Adjustment Range

(and Default Value)

Enables Arrow Keys

and Deselects

• FACTORY DEFAULTS — This key deselects all the period keys, resets their values to the ISO standard values, and disables the arrow keys.

91369 Service Manual 2-33

Setup

Continuous Alarm Tones

The CONTINUOUS ALARM TONES key enables you to configure the monitor for continuous alarm tones. This has no affect on the alarm period keys in the Tone Configuration menu.

Alarm Tone Access

The TONE ACCESS / ON/OFF key enables you to configure the monitor for user alarm tone access. The TONE / ON/OFF key in the Alarm Tone, Remote Alarm, and Alarm Watch Tone menus is not displayed if OFF is selected. This has no affect on the alarm period keys in the Tone Configuration menu.

Edit Drug List

The EDIT DRUG LIST key in the Biomed Level menu enables you to input and edit the master drug list from any monitor. The master drug list can then be received by any monitor and stored in that monitor’s non-volatile memory. The master drug list can store up to 16 drug names and associated data.

Prior to initially storing the drug list in a monitor (either via direct input or transfer), all monitors have blank drug list names and display defaults that correspond to the standard drugs A through D (refer to Table 8). This set of four default values is repeated for every fourth item in the drug list (for example, default settings for the 5th and 9th drugs in the list are identical to the settings for Drug A, the 1st drug in the list).

Table 8: Standard Drug Values

Key Neonatal Drug Adult Drug

A Dopamine or Dobutamine Dopamine or Dobutamine

B Isoproterenol Lidocaine, Pronestyl or Bretylium

C Tolazoline Nitroglycerine or Levophed

D Nitroprusside Nitroprusside

Touch EDIT DRUG LIST to display the Drug List Selection Menu (Figure 2-19). Selecting any drug name from this list highlights that line. The drug list may be blank (if all the entries are blank) or display one or more blank lines.

91369 Service Manual 2-34

Setup

Figure 2-19: Drug List Selection Menu

Note:

To remove a drug from this list, you must overwrite the entry with blanks.

Touch EDIT DRUG to display the Edit Drug dialog box (Figure 2-20). Enter information in the fields using the on-screen keyboard. Touch SAVE to save the data to the drug list.

Touch TRANSFER to transfer this monitor's drug list information to other monitors. Refer to Define Patient

Identifier (PI) String on page 2-39 for information on using the transfer feature.

Figure 2-20: Edit Drug dialog box

Refer to the Ultraview SL Operations Manual (P/N 070-1150-xx) located on CD-ROM P/N 084-1101-xx for additional information.

91369 Service Manual 2-35

Setup

Minimum Volume

The MINIMUM VOLUME / ON/OFF key the Biomed Level menu locks (ON) the current alarm tone volume setting as the minimum alarm tone volume. Visually verify the volume setting before selecting ON.

System Information

The SYSTEM INFO key in the Biomed Level menu accesses the monitor’s System Information - Digital screen (actual data may differ from the example in Figure 2-21).

Figure 2-21: System Information screen - Digital

DIGITAL

This page displays information related to the TTL, system, diagnostics, and software configuration.

The presence or absence of the WLAN key in the DIGITAL system information window is the only indication of whether or not this monitor supports wireless networking.

Selecting this key prints whatever information is displayed in the window above it. All System Information windows display this key.

ANALOG

Touch ANALOG to display the analog system information.

• While the monitor is connected to AC power, AC displays below the AC/DC heading and the current battery charge current and battery resistance values display, along with values for various powers and temperatures (actual data may differ from the example in

Figure 2-22).

91369 Service Manual 2-36

Setup

Figure 2-22: Analog system information - monitor connected to AC power

• If the monitor is not connected to AC power, DC displays below the AC/DC heading (actual data may differ from the example in values for various powers and temperatures (line voltage displays asterisks).

Figure 2-23), and the current battery voltage and %full values display, along with

Figure 2-23: Analog system information - monitor not connected to AC power

91369 Service Manual 2-37

Setup

WLAN

Selecting the WLAN key (only displayed if a radio is detected) displays the WLAN page.

Figure 2-24: WLAN interface information

Information related to the current use of the wireless monitor’s WLAN operation appears at the top of this page. The radio’s list of detected APs displays below Available Access Points.

Current WLAN Interface

• WLAN Interface indicates whether the WLAN card is currently communicating with an access point (“ASSOCIATED” = it is communicating; “UNASSOCIATED” = it is not communicating).

• SSID lists the text string input for the SSID entered in the WLAN tab of the BIOMED LEVEL menu, under Network Setup.

• Station MAC Address and IP Address list the current MAC address and IP address of the WLAN card, respectively.

• Channel identifies which of the available wireless channels (01 to 14 decimal) the WLAN card is currently using to communicate.

• Tx Rate indicates which data rate (in Mbps) the WLAN card is currently using.

• Signal Strength indicates the current received signal strength (value from 1 to 100).

• Firmware Version indicates the version of the firmware (software) in the WLAN card.

Available Access Points

The list of available access points lists the MAC address, the channel (Ch.), and the signal strength (Str.) of all APs that match the displayed SSID value. An asterisk (*) to the left of an AP indicates that the WLAN card is currently associated with this AP.

91369 Service Manual 2-38

Setup

REFRESH

Selecting REFRESH initiates an update of the page.The WLAN card immediately scans for available APs and associates with one of them. This process takes approximately 1 second.

System Information Screen Updates

The contents of the WLAN screen update in one of two ways:

Approximately every 10 seconds, a monitor prompts the WLAN card for current statistics. The monitor does not otherwise instruct the WLAN card to perform any action.

Selecting REFRESH forces the WLAN card to disassociate or disconnect from access points (which causes the WLAN card to scan for available access points) before the monitor asks for current statistics from the WLAN card. This action immediately updates the screen.

In either instance, the monitor displays the information provided by the WLAN card.

The WLAN card firmware updates its list of available access points for one of three reasons:

• When the WLAN card becomes unable to communicate with the access point;

• When the WLAN card is told to disassociate or disconnect from an access point (for example, after the user selects REFRESH); or

• Approximately every 5 minutes, if neither of the above instances occurs beforehand.

Define Patient Identifier (PI) String

The network-based Remote View and Alarm Watch features enable caregivers to monitor a patient's condition by displaying that patient's data on monitors not connected to the patient.

To minimize any confusion of patient identity, any monitor that displays more than one patient's data uses a dividing line to separate the data. The monitor also displays identifying information in the waveform zone for every patient whose data is being remotely displayed. The identifying information, which displays in the lower left corner of the waveform zone, consists of the monitor's five-character Monitor Name and a configurable Patient Identifier (PI) string, which can be up to 40 characters in length.

To create the PI string, monitors gather identifying data from the Global Data System (GDS) memory of the remote monitor as required by the PI Config string definition. Monitors then display this PI string to the right of the monitor's name at the bottom of the Remote View or Alarm Watch display zone. This PI string is reevaluated when a new patient is admitted, a patient is discharged, a bed location changes, or any identifying parameter changes.

At run-time, patient name items defined for inclusion in the PI string may be truncated to ensure they fit within the available display space; general items are never truncated. Monitors also truncate the PI string so that it does not run into or behind the parameter key and to ensure that it does not exceed the 40-character limit.

91369 Service Manual 2-39

Setup

Configuring the PI String

Touch DEFINE PI STRING in the Biomed Level menu to display the Define Patient Identifier String dialog box (Figure 2-25).

Figure 2-25: Define Patient Identifier String dialog box

The current PI string definition is displayed in the Rule box and is defined using the three rows of item keys (General Items, Patient Name, and Delimiter). Touch a key in one of these rows to append that item to the end of the Rule’s existing contents. The items are appended exactly as they are selected.

For example:

• Selecting the same Delimiter (separator) twice inserts that delimiter into the Rule box twice.

• Touching AGE and then GENDER inserts the patient's age and gender into the Rule box without a separating character.

• Touching AGE, a delimiter, and then GENDER ensures that consecutive items are separated.

No more than two consecutive delimiter strings can be added to the Rule box at one time. To display identifying information, the monitor gathers the PI data associated with the items displayed in the Rule box from the remote monitor’s GDS.

The three keys on the right side of the Define Patient Identifier String dialog box enable you to clear, save, or transfer the Rule as follows:

• Touch CLEAR to clear the Rule box.

• Touch SAVE to save the contents of the Rule box as the PI string definition. Below the Delimiter keys, the monitor displays the message Configuration Saved if errors are not detected and displays the message Unable to save PI Config string, try again if errors are detected.

• Touch TRANSFER to transfer this monitor's PI string definition to other selected monitors.

To configure the strings on multiple monitors:

1 Define and save the PI string on one monitor using the Define Patient Identifier String dialog box.

2 Touch the TRANSFER key to display the Transfer Patient Identifier Configuration dialog box.

91369 Service Manual 2-40

Setup

Note:

The TRANSFER key is unavailable if the Rule box is blank or the contents have been changed but not saved.

3 Select the destination monitors, then touch the TRANSFER key in the Transfer Patient Identifier

Configuration dialog box to transfer the data to the other monitors. The message Transfer Complete

displays following a successful transfer.

Figure 2-26: Transfer Patient Identifier Configuration dialog box

The other two keys at the bottom of the Transfer Patient Identifier Configuration dialog box perform the following functions:

• SELECT ALL IN SUBNET — Selects all the monitors within the currently selected subnet with one key touch.

• DESELECT ALL — Deselects all the monitors in all the subnets with one key touch.

The list of monitor keys displayed below the subnet keys may include monitors that do not support the PI string transfer protocol if legacy products are present. Keys for those monitors are always unavailable.

Note:

The SELECT ALL IN SUBNET and DESELECT ALL keys are unavailable if no monitors that support the transfer protocol exist within the selected subnet. Selection or deselection only applies to the keys for 91xxx monitors.

START/END CASE OPTIONS

Touch the START/END CASE OPTIONS key to display the Start/End Case Options dialog box.

Note:

If option D, Perioperative, is not activated, the START/END CASE OPTIONS key does not appear.

91369 Service Manual 2-41

Setup

Figure 2-27: Start/End Case dialog box

Touch START/END CASE /ON to turn ON Start Case/End Case features, or touch START/END CASE /OFF to turn the features OFF. The monitor must be reset for these changes to take effect, and the Reset Monitor dialog box (refer to Figure 2-29 on page 2-43) displays after any change in the Start/End Case Options dialog box.

The START/END CASE ON/OFF setting determines whether the following keys are enabled or disabled.

CASE PURGE QUERY/ALWAYS

The CASE PURGE /QUERY key determines whether the Purge patient data? confirmation window (refer to Figure 2-28 on page 2-42) displays after the user touches KEEP SETTINGS on the Keep Settings? dialog box.

Figure 2-28: Purge patient data confirmation window

Touch CASE PURGE /QUERY to prompt the user with the Purge Data confirmation window when the user touches END CASE.

Touch CASE PURGE /ALWAYS to purge all patient data when the user touches END CASE.

91369 Service Manual 2-42

Setup

RESTART STATE STARTED/ENDED

Touch the RESTART STATE /STARTED key to set the default power ON state of the monitor to case mode. When the monitor starts from a cold boot, it will start up with case mode enabled.

Touch the RESTART STATE /ENDED key to set the default power ON state of the monitor to non-case mode. Refer to the Ultraview SL Operations Manual (P/N 070-1150-xx, located on CD-ROM P/N 084-1101-xx) for how to use Start Case and End Case featues.

Reset Monitor

The RESET MONITOR key in the Biomed Level menu allows you to reset the monitor after changing settings for the following items (the monitor must be reset before the changes can take effect):

•Monitor ID

•Monitor Name

• Subnet Name

• IP configurations

• Start Case/End Case options

Touching the RESET MONITOR key displays the Reset Monitor dialog box. Select Reset Monitor to proceed or Cancel Reset to cancel.

Figure 2-29: Privileged Access - Reset Monitor dialog box

91369 Service Manual 2-43

Theory

Contents

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Major System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Printed Circuit Board Assemblies (PCBAs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Interconnect and Connector PCBAs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Bezel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Boot Sequence Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Normal Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Parameter Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

CPU PCBA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

CPU PCBA Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

I/O PCBA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Interconnect PCBA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Overview

A typical monitor configuration consists of these major components:

•Monitor

• DC power supply

• Parameter module

There may also be additional hardware devices present, such as a mouse, keyboard, and barcode scanner.

The monitor may also be used in conjunction with other hardware components, such as:

• 90491/90499 module housings

• Flexport system interface

• Gas analyzer

• External display

91369 Service Manual 3-1

Theory

Major System Components

Main Enclosure

The main enclosure includes the CPU, Interconnect, and I/O PCBAs, with one integrated module slot. The main enclosure does not include an AC-to-DC power supply. AC-to-DC power conversion is provided by an external DC supply. The external supply provides 18 VDC, which is internally converted to generate appropriate operating voltages.

The data processing and control hardware all reside on a single CPU PCBA consisting of:

• Memory subsystem that incorporates Flash, synchronous DRAM, SRAM, and NVRAM.

• Host subsystem that runs the system software and interacts with peripheral devices.

• Graphics subsystem that generates the display.

External Connectors

The monitor’s external connectors are listed in Table 1.

Table 1: External Connectors

Reference Connector Description Pinout



Figure 2-3

on page 2-4



Figure 2-3

on page 2-4

5-pin DIN male

9-pin SDLC connector

Power input

3RETURN 4+18 Input

1GND 2Data + 3Data 4+5 V 5+12 V 6 Clock + 7 Clock 8 -12 V 9GND

91369 Service Manual 3-2

Theory

Table 1: External Connectors (continued)

Reference Connector Description Pinout

1 Alarm 0 Common 2 Alarm 0 Normally Closed 3 Alarm 0 Normally Open 4GND 5 Alarm 1 Normally Closed



Figure 2-3

on page 2-4



Figure 2-3

on page 2-4

DB15HD female

Alarm relay output

Video output

6 Alarm 1 Normally Open 7 Alarm 1 Common 8GND 9 +12 @ 140 mA 10 GND 11 GND 12 Alarm 2 Normally Open 13 Alarm 2 Common 14 Alarm 2 Normally Closed

1Red 2Green 3Blue 4ID Bit 5Self Test 6Red RTN 7Green RTN 8Blue RTN 9 Missing Pin 10 RTN 11 Not connected 12 Not connected 13 H-Sync 14 V-Sync 15 Not connected

1NC 2 RXD (receive data) 3 TXD (transmit data)



Figure 2-3

on page 2-4



Figure 2-4

on page 2-6

91369 Service Manual 3-3

DB9 female Serial I/O

USB

Mouse, keyboard, barcode scanner

4 DTR (data terminal ready) 5GDN 6 DSR (data set ready) 7 RTS (ready to send) 8 CTS (clear to send) 9NC

1+5 V out 2Data 3Data + 4GND

Theory

Table 1: External Connectors (continued)

Reference Connector Description Pinout

1TD+ 2TD3 RD+



Figure 2-4

on page 2-6

Connector , Synchronous Data Link Control (SDLC) interface, is electrically compatible with the EIA-RS485 standard. The communications protocol is derived from the IBM SDLC specification and uses its Non-Switched Multipoint Half-Duplex configuration. This interface is compatible with all Spacelabs Medical modules, Flexport interfaces, gas analyzers, telemetry receivers, and printers.

RJ 45

Ethernet – 10/ 100BaseT

4NC 5NC 6 RDYellow LED ON = 100 Mhz

OFF = 10 Mhz

Green LED Link/Activity

Connector in the alarm relay schematics (refer to Alarm Relay on page 2-8).

Connector includes H-sync and V-sync signals, allowing the use of a wide range of third-party displays.

Connector number of start, stop, and parity bits are software programmable. The default is 9600 baud, 1 stop bit, 8 start bits, and no parity bits.

Connector communications for USB peripherals, such as a keyboard, mouse, and barcode scanner, that are approved by Spacelabs Medical.

Connector

, alarm relay output, is compatible with third-party alarm devices that conform to the pinout shown

, video output, is a standard 15-pin, high-density, D-Sub connector. The output to the display

, serial communications interface, conforms to the EIA-RS-232 standard. The baud rate and

, Universal Serial Bus (USB), follows the USB1.1 standard. These three ports provide power and

, Ethernet, conforms to the IEEE 802.3 standard for 10/100BaseT.

External Controls

The power ON/OFF switch located on the front bezel is the only external control for the monitor.

91369 Service Manual 3-4

Theory

Printed Circuit Board Assemblies (PCBAs)

CPU PCBA

Note:

Refer to the list of Assembly Drawings and Schematics on page 6-4 for the complete system block diagram.

The CPU PCBA runs the system software, updates the display, and communicates with peripheral devices through the I/O PCBA.

It has four major subsystems (Figure 3-1):

• Power Supply

• Core Processor, including all 64-bit peripherals

• PCI subsystem, including 32-bit peripherals

• ISA subsystem, including 16-bit peripherals

Core processor Power supply

PCI subsystem ISA subsystem

Figure 3-1: CPU PCBA setup

91369 Service Manual 3-5

Theory

Power Supply Section

The power supply subsystem produces power to drive the entire system, including the CPU, display, parameter module, and battery charger (Figure 3-2).

POWER SUPPLY SECTION

SLOW POWER-ON

+12 V LINEAR REGULATOR

BATTERY A

BATTERY B

EXT. P.S. / BATTERY INPUT COMPARATOR

20 V CHARGER PREREGULATOR

+/- 12 V, -5 V POWER CONVERTER

ON/OFF SWITCH

BATTERY CHARGER LED FLASHER

LINEAR 5 V

+20 V

+12 V

-12 V

SHUTDOWN

POWERFAIL

-5 V

P200

A & B BATTERY CHARGERS

CHARGER CPU & POWER CONVERTER

FRONT PANEL LEDS

OVER-CURRENT PROTECTION

BACKLIGHT

CONTROL

EXTERNAL P.S. INPUT

P901

175-1508-01

P100

+12 V

-12 V

-5 V

175-1611-00

BATTERY FAULT

DIGITAL

91369 (10")

91370 (12.1")

+18 VDC

POT

+5 V, +3.3 V POWER

CPU &

POWER SUPPLY

MONITORING

STATUS

{

CONVERTER

RECORDER POWER +15 V

+5 V

+3.3 V

SLOW TURN-ON

+5 V +3.3 V

+15 V

Figure 3-2: Power supply section

Power Supply Connector

Power is supplied to the monitor from an external DC power supply. Power arrives at the CPU PCBA via a single connector, P100, at 18 VDC.

91369 Service Manual 3-6

Theory

DC-DC Converters

The internal power supply derives six output voltages for different functions of the CPU PCBA.

•+12 V @ 24 W

•-12 V @ 1.2 W

•-5 V @ 0.5 W

•+15 V @ 3 W

•+5 V @ 15 W

•+3.3 V @ 6 W

In the event of mains power failure, all supplies are maintained through power derived from up to two internal 12 V NiMH batteries.

The power supply subsection has a slow power-ON feature, which prevents high inrush currents when power is switched ON. The power supply will also control which input source to use, either the external power supply or the batteries. The minimum input voltage required to operate the monitor is 11.5 VDC. If the external power supply input is less than 11.5 VDC, and the batteries greater than 10.75 VDC, the monitor will run on battery power.

Power Failure Operation

The power supply on the CPU PCBA provides a digital signal PFAIL to the CPU to indicate that a power failure condition is imminent. This signal is asserted by the power supply if its input power fails, or if the monitor is switched OFF. This signal is provided through a power supervisor IC to the MPC8270 as an interrupt, causing the processor to take immediate power failure action.

Power failure operation of the monitor takes advantage of the fact that this monitor’s design requires at least one charged battery to be present at all times. This battery provides power for the monitor far in excess of the intended three-minute data retention requirement for the module data.

Battery Chargers

The battery chargers have the following features:

• Front panel LED battery charging/failure indicator.

• Automatic “battery care” recharge cycles to ensure a maximum charge.

• Individual battery chargers for each of the two batteries, so that a bad battery will not degrade the other battery.

• If the monitor is OFF, one or two batteries can be fully charged in 90 to 120 minutes. If the monitor is ON, batteries are charged in four to five hours.

Charger Pre-Regulator — The +20 VDC output provides up to 60 W of battery charging power. This DC output voltage is then used as the main power source for charging batteries. The circuit uses a single-ended flyback converter topology. This pre-regulator circuit is active at all times when the monitor is powered from the external power supply voltage.

91369 Service Manual 3-7

Theory

Charger CPU IC — This IC is a pre-programmed microprocessor designed specifically for controlling the charging of batteries. The CPU monitors the voltage and resistance of the batteries while charging and determines when to turn the charger power converter ON or OFF, and can detect faulty batteries. The CPU periodically performs maintenance cycles to keep batteries fully charged.

Charger Power Converter — The power converter consists of a LT1511 step-down converter and various discrete components. It is turned ON and OFF under the control of the charger CPU IC. When ON, it charges the batteries with the maximum current that is allowed by the charge rate control circuit.

Charge Rate Control — The minimum battery charge rate is always controlled by the battery itself. A battery will only accept the current it is capable of converting to charge inside the cells. However, the control for the maximum battery charge current is controlled in one of two ways. If the monitor is powered from the power supply and the front panel power switch is OFF, the maximum charge current defaults to the maximum current that the batteries can take, which is 1.8 A. If the monitor is powered from the AC/DC power supply and the front panel power switch is ON, the CPU will have control of the maximum battery charge rate via an analog switch and digital potentiometer. The CPU monitors the power consumed by the monitor electronics and adjusts the charge current based on the amount of remaining power available from the power supply.

Battery Charging LEDs — A pair of simple op-amp oscillator circuits controls the operation of the two front panel battery charge status LEDs. When either battery is charging, a signal from the charging circuit causes that battery's oscillator to run, which causes the corresponding front panel LED to flash. The two front panel battery charge status LEDs are independent of the front panel power LED. When external power is available, the power LED is constantly lit; this LED is off when external power is not available.

Battery Fault/Interrupt Signal — If the battery voltage exceeds the upper limit, the charger CPU IC will power OFF the charger and then attempt to charge again. If the battery voltage exceeds the upper limit again, a 1 Hz signal will be sent to an MPC8270 CPU interrupt input (via the ISA bridge). The software will sense this 1 Hz rate and will indicate a battery failure. If the battery voltage is too low, the process is the same.

Automatic Fan Control — The MPC8270 CPU monitors internal temperature via temperature sensors and an A/D. If the temperature exceeds a preset limit, the CPU will run the fan at a normal speed until the temperature is reduced. However, during battery charging, the battery chargers override the CPU and force the fan on at a higher than normal speed. This allows the battery chargers to run at full output without overheating the unit.

Note:

The fan will not operate unless a battery is installed.

91369 Service Manual 3-8

Theory

Core Processor Subsystem

The core processor subsystem includes a memory subsystem and a microprocessor subsystem (Figure 3-3). The memory subsystem incorporates Flash ROM, Synchronous DRAM (SDRAM), and Static RAM on the local 60x bus. All are directly controlled by the memory controller of the MPC8270 microprocessor.

PROCESSOR SUBSYSTEM

FAN

+5 V

P040

+3V

FAN SPEED

CONTROL

CPU CORE

VOLTAGE REG

PFAIL

16 MB

FLASH ROM

32 MB

SDRAM

512 KB

STATIC RAM

(GDS)

BATTERY

BACKUP

SUPERCAP

+1.5 V

64-BIT

32-BIT

MPC8270 CPU

PCI

E-NET

SDLC

SCC2

ALARM

CONTROL

SMC1

SMC2

SCC3

E-NET

Transceiver

+5 V

-12 V +12

EXTERNAL ALARM

OPTICAL RELAYS

YELLOW

INTERNAL ALARM

OPTICAL RELAYS

IrDA CODEC

MICROCONTROLLER

REMOTE KEYPAD

VOLTAGE MONITOR

5-WIRE RESISTI VE

TOUCHSCREEN

CONTROLLER

+3 V

F1 (0.35 A)

CYAN

RED

P061

TO EXPANSION

J941

IR RECEIVER

HOUSING

IrDA PORT

ON/OFF SWITCH

+5 V

-5 V +12 V

1.5 V

DRIVERS

RJ-45 Ethernet LEDS

Yellow: ON = 100MHz OFF = 10MHz Green: ON = Link

SERIAL PORT

+5 V

-12 V +12 V +15 V

J061

P341

TOUCHSCREEN

J560

SDLC

ALARM 2

ALARM 1

ALARM 0

GREEN

YELLOW

Figure 3-3: Core processor subsystem

Memory

Flash ROM Memory

The Flash ROM contains all code executed by the monitor. Refer to Boot Sequence Overview and Normal Operation Overview on page 3-18. The Flash ROM is updated via the network interface, using File Transfer

Protocol (FTP).

Control over the Flash is done with the GPCM and a dedicated CS0 region, controlling the entire memory bank. Common Flash Interface (CFI) is the communication method. Two banks of Flash memory (Intel Advanced+ BootBlock C3-family, 64 Mbit, ×16, 80 ns) are used on each PCBA, providing a total of 16 MB of Flash memory.

91369 Service Manual 3-9

Theory

SDRAM Memory

In Normal Operation, the CPU executes code directly from SDRAM.

The 32 MB (256 Mbits) SDRAM is refreshed using its auto-refresh mode. Using the SDRAM’s periodic timer, an auto refresh command is issued to the SDRAM every 15.6 µs.

Static RAM (GDS) Memory

The Static RAM contains Patient Trend Data and Demographics, known as the Global Data System (GDS).

The monitor contains two banks of 256 KB SRAM that hold the GDS data. They draw their power from the 3 V backup with a minimum of three minutes of battery backup supply, using a SuperCap with the MAXIM 6363 supervisor.

Chip Selects

Chip selects for devices on the 60x bus are generated by the MPC8270 memory controller unit.

The monitor uses only three of the 12 available chip selects:

• CS0 — Boot Flash (controlled by the GPCM)

• CS2 — SDRAM (controlled by the SDRAM)

• CS6 — GDS SRAM (controlled by the GPCM)

MPC8270 Microprocessor

The monitor uses the Motorola MPC8270ZQ processor.

Some of the special features include:

• PowerPC G2_LE core processor unit.

• Separate power supply for the internal logic (1.5 V) and for I/O (3.3 V).

• 64-bit data and 32-bit address on the 60x bus.

• 32-bit address/data on the PCI bus.

• Integrated PCI 2.2 compliant bridge, 32-bit data bus, 66 MHz, 3.3 V.

• Twelve-bank memory controller with glueless interface to SRAM, SG1DRAM, and Flash.

• Embedded 32-bit RISC architecture communication processor.

Ethernet Interface

The MPC8270 contains fast ports on its communication module. The monitor takes advantage of one FCC standard port (FCC1) for the 10/100BaseT Ethernet port. The interface to the Physical Layer (PHY) is through full Media Independent Interface (MII). Data communication is in Nibble mode (4 TX_D lines and 4 RX_D lines). The RJ-45 connector contains LEDs indicating speed (yellow ON for 100 MHz, yellow OFF for 10 MHz) and link status (green flashing about once every five seconds for Link Active).

91369 Service Manual 3-10

Theory

MII

The MPC8270 has all the MII pins except bi-directional data line (MDIO) and MDC (clock), which are provided between the PHY chip and MPC8270 GPIO.

•MDIO → PC4

• MDC → PC3

Fast Ethernet PHY

An Intel LXT972A is used for Ethernet PHY. This is an IEEE-compliant Fast Ethernet PHY transceiver supporting both 10BaseT and 100BaseT applications.

SDLC Interface

The SDLC bus is the communications interface to Spacelabs Medical modules, which supply patient data to the monitors. The SDLC interface runs at 1.892352 MHz. This is divided down to generate a 448 Hz sampling rate. The SDLC communication task retrieves the data from the bus, assembles it into a packet format, and provides it to the monitor application. The SDLC clock signals are output by the SDLC interface and are used to drive the external SDLC bus and modules. The SDLC data signals are bi-directional and can be used to both transmit and receive data from the intelligent modules.

RS-232 (UART)

The RS-232 universal asynchronous receiver-transmitter (UART) uses some UART signals for communication with external devices. Linear Technology LTC1331 RS-232 transceivers are used to provide 3 V interface with the MPC8270. Communication with external RS-232 devices is through the 9-pin DSUB connector and transmission speed is limited to 9600 Kbps.

Embedded Alarm Light

A “flexible circuit” and PCBA contain circuitry for the embedded alarm light. Five ultra-bright LEDs are used for each color (red, yellow, and cyan) to generate the back light for the lens.

Because alarms are available on the monitor as well as externally, an internal signal is provided (from pin PB26 on the MPC8270), allowing the software to enable/disable the embedded alarm light on the monitor.

At initial power ON, the LEDs cycle through at a rate of 4.2 Hz for a duration of two seconds, which is more rapid than the fastest flash rate used for any alarm condition (2.8 Hz). This function allows the user to confirm that all the LEDs are functional.

Optical relays are used for both the embedded alarm light and the external alarm relay output.

External Alarm Control

During boot diagnostics, all three alarm relays are tested for two seconds. During normal operation, the highpriority alarm relay is activated during high-priority alarms (for example, heart rate), and the medium-priority alarm relay is activated during medium-priority alarms (for example, leads off).

91369 Service Manual 3-11

Theory

Remote Keypad (Optional)

The monitor supports the 90360 remote keypad. The communication from the keypad is through 940 nm wavelength infrared, and processing is done in the Motorola MC68HC908 8-bit microcontroller.

Touchscreen Circuitry

An ELO Graphics Coach chip set is built into the CPU PCBA to handle all communication between the 5-wire resistive matrix touchscreen and the MPC8270 CPU. In addition to the standard UART signals, additional signals from the on-board touchscreen controller (touchscreen sense, wake up, and shutdown) are directly routed to the MPC8270 GPIOs. The current drivers for the touchscreen are sourced from +3 VDC through fuse F1.

Hardware Reset

Externally driven HRESET will cause the following:

• Initialize memory controller

• Initialize system protection logic

• Initialize interrupt controller

• Initialize parallel I/O pins

PCI Subsystem

The PCI subsystem interfaces directly to the PCI Bridge integrated into the MPC8270 processor (Figure 3-4). All accesses to the PCI devices are done through this bridge. The monitor supports up to five PCI devices, not including the PCI module integrated into the MPC8270. Not all devices reside on the primary PCI bus. To keep the design modular and simple, only the PCI/ISA bridge, PCI/PCI bridge, and video controller reside on the primary PCI bus. The PCMCIA controller is placed on the secondary PCI bus through the PC/PCI bridge. The USB keyboard and mouse are supported by a USB controller located within the Intel 82371, which is USB v1.1 compliant.

91369 Service Manual 3-12

32-BIT

Theory

J560

MPC8270 CPU

PCI

PCI SUBSYSTEM

CARDBUS

CONTROLLER

J741

C&T 69000 GRAPHICS

ACCELERATOR

FUTURE

P771

PCMCIA

IEEE 802.11

WIRELESS

RED

GREEN

BLUE

H SYNC

V SYNC

6-BIT RED

6-BIT GREEN

6-BIT BLUE V-SYNC H-SYNC

75-OHM VIDE O

BUFFERS

SYNC BUFFERS

3V TO 5V

LEVEL

SHIFTERS

P361

10" TFT LCD DISPLAY

175-1012-01

LVDS

(91369)

P261

175-1610-01

12.1" TFT LCD DISPLAY

RED

GREEN

BLUE

H SYNC

V SYNC

(91370)

TO PCI / ISA BRIDGE

Figure 3-4: PCI subsystem

Video

Video is implemented using an Asiliant 69000 VGA controller that resides on the PCI bus. The video system uses 2 MB of internal RAM for video memory. The video controller directly generates digital video signals for the liquid crystal display. It also generates equivalent analog RGB signals, which are buffered and sent to the external VGA connector for connection to an external display. H-sync and V-sync signals are also routed to the VGA connector.

PCI/PCMCIA Controller

An internal, 68-pin, PCMCIA socket connector is standard and is the interface for a PCMCIA IEEE 802.11(a/b/ g) wireless network card. A Texas Instruments PCI2250 has an OverCurrent detection output, which is fed directly to a GPIO on the MPC8270. Software can take action, if desired, on the assertion of this pin (for example, PCMCIA shutdown).

The PCMCIA controller has a direct interrupt line to the MPC8270 CPU through IRQ3.

91369 Service Manual 3-13

Theory

Wireless LAN

The wireless LAN is implemented using a Symbol technologies 802.11b direct sequence spread-spectrum radio. This card is a compact flash style card interfaced to the main CPU board through a PCMCIA interface adapter. This adapter is connected to the MPC8270 CPU through a PCI1510 PC card controller. All timing is PC card/PCMCIA standard. The wireless card resides in PCI subsystem. This wireless card communicates via an embedded software driver through the VxWorks operating system. These packets contain received data or data for transmission or commands to the wireless LAN card.

PCI/ISA Bridge

An Intel 82371EB South Bridge, which is part of the Intel Chipset 440BX, is used to simplify software porting. The Bridge is the interface between the 32-bit PCI bus and the 16-bit ISA bus. The ISA bus is maintained for the support of Audio CODEC, NVRAM, and ISA wireless interface.

The Bridge also contains the USB Root Controller, which connects to and controls the 4-port USB hub.

-%4393"53!3)

$6,,&3

(*',5

7225%

7,%

0$591

/(11$+&



7,%

&'$

83& </33865(:23

*1,527,12 687$76

7523



%68



%8+





9



7523%68



5:3



71(0(*$1$0



-

-

5.36

2,'8$

&('2&

5(9,5'

782(1,/ 65(9,5'

0

/$15(71,

5(.$(36

&1

Figure 3-5: ISA subsystem

NVRAM

Non-volatile RAM (NVRAM) is used for SysGen, error logging, and time/date keeping. It is implemented with a Dallas Semiconductor DS1644 non-volatile timekeeping RAM.

It is a highly integrated device, containing the following:

•32 K × 8 static RAM.

• Lithium battery with a 10-year life.

• Time-of-day clock with ±1 minute per month accuracy.

91369 Service Manual 3-14

Theory

• Power-fail circuitry to protect the clock and RAM on power OFF.

• CMOS Static RAM: stores all Configuration Data in 32 K bytes.

- User-defined defaults

- Biomed- and clinical-level settings

- Passwords

- Sysgen Settings

- Event Log

- Touchscreen Calibration Data

Eight-Channel ADC

The 8-channel, 10-bit ADC is used to monitor power supply functions, including voltage and temperature.

Audio CODEC

An Analog Devices AD1845 produces the sound generation for the monitor. It drives an amplifier for the internal speaker. Line Out functionality is not currently supported.

Interconnect and Connector PCBAs

The Interconnect PCBA plugs directly into the CPU PCBA via J1 (Figure 3-6).

It provides power distribution and EMI filtering for:

• (Optional) Recorder

• (Optional) Recorder CPU

• SDLC (module)

The Interconnect PCBA also provides a signal pass-through to the Connector PCBA, which contains:

• Serial Port

• Analog Video

• External Alarm Relay Output

•SDLC

91369 Service Manual 3-15

INTERCONNECT

+5 V

-12 V +12 V +15 V

PCBA

Theory

CONNECTOR

PCBA

J5J5

SERIAL PORT

RED GREEN BLUE H SYNC V SYNC

ALARM 2 ALARM 1 ALARM 0

SDLC

+5 V

-12 V +12 V

+15 V

EXTERNAL ANALOG

VIDEO SIGNALS

EXTERNAL ALARM

SIGNALS

RECORDER

CPU

PATIENT MODULE

OEM

RECORDER

SDLC

Figure 3-6: Interconnect and Connector PCBAs

P2 SERIAL

P3 VIDEO

J3 NURSE ALERT

P3 SDLC

Bezel Assembly

The Bezel Assembly is comprised of four items (Figure 3-7):

• Power indicator PCBA

- Battery charger status LEDs

- AC mains LED

- Power ON/OFF switch

- Infrared receiver

- Direct cable connection to CPU PCBA J061 for battery status, mains connected, infrared, and power

switch

• 12.1-inch TFT color LCD display

91369 Service Manual 3-16

Theory

- Digital video via direct cable connection from CPU PCBA P161

- Backlight power converter

- Backlight

• 5-wire resistive touchscreen

- Elo Touchsystems E271-2210 compatible

- Direct cable connection to P341 on CPU PCBA

• Embedded alarm light assembly

- Direct cable connection to P941 on CPU PCBA

- Three banks of LEDs: cyan, yellow and red.

Figure 3-7: Bezel assembly

91369 Service Manual 3-17

Theory

Boot Sequence Overview

When power is applied, the monitor begins its boot-up sequence. The following is a highly abbreviated version of the sequence of events that occurs while the monitor is booting.

1 Program execution starts in Flash ROM.

2 Key internal and external devices and memories are mapped and enabled.

3 The boot-type value is read from Static RAM. This value is written to Static RAM, which is backed up by a

“SuperCap,” at every power-down or self-reboot. The value determines the kind of boot: warm or cold. Warm booting maintains all data, then skips diagnostics and other steps in order to restore monitoring as soon as possible.

4 Key areas of SDRAM are tested (cold boot only).

5 The boot code is copied from Flash ROM to SDRAM, where program execution resumes.

6 More internal and external devices are initialized.

7 Other key memory and CPU tests are performed (cold boot only).

8 Drivers needed for diagnostics and the boot console are installed.

9 Diagnostics are run (cold boot only).

10 Boot screen and the “3-2-1” countdown are displayed (cold boot only).

11 The VxWorks kernel and the application code are copied from Flash ROM to SDRAM, where program

execution continues.

12 The VxWorks kernel is started, and all internal and external devices are reinstalled and initialized.

13 The monitor application code is started, and normal monitor operation begins.

Normal Operation Overview

This is a high-level summary of what the software does as part of its normal operation.

Once the monitor is booted, it begins normal monitor operation. Normal operation can be viewed as several high-level software and subsystem tasks running simultaneously. These interface to other tasks, and all the tasks interface to hardware devices via device drivers.

Main Subsystems and Tasks

The SDLC subsystem sends packets from the modules to the rest of the system, including Ethernet and GDS, and it also sends packets to modules.

The Interpreter subsystem provides modules and keys with “primitives” that they use, via table code, to create and control their user interface on the monitor. The Keys subsystem handles touchscreen key presses. It receives key presses from the user and notifies the keyboard interpreter, which then runs the appropriate table code program. That program uses the key display task to redraw the new key state as feedback to the user.

The Global Data System (GDS) is the patient database with parameter data from the modules. It contains current, general, trend, and waveform data.

91369 Service Manual 3-18

Theory

The Remote Interface system handles Ethernet connections to remote monitors and modules.

It also:

• Broadcasts the existence and configuration of network devices to each other.

• Allows remote parameter attaches and remote key press connections across the network.

• Downloads the module table code to remote monitors to create the same user interface on multiple monitors.

• Supports the Alarm Watch and Remote View functions.

• Handles multicast waveform data.

The Recorder subsystem controls local and network printers.

The Alarm subsystem handles the standard alarms. Modules send alarm conditions over SDLC and, in response, the alarm subsystem sends alarm messages to the tone, display, record, and network tasks. It receives messages from the network for Alarm Watch alarms and from SDLC tasks for module/channel adds or deletes.

Display

The internal display is a 640 × 480, active matrix, thin-film-transistor (TFT) color Liquid Crystal Display (LCD). It receives 18 data signals, 4 timing signals, +5 V and ground. Backlight voltage is produced via an attached 1000 VAC inverter.

The pinout of the display connector (at the display) is provided in Table 2. The backlight is connected via a separate 3-pin connector

Table 2: Display Connector Pinouts on CPU PCBA P161

Pin Number Symbol Description

1GND

2CLK

3 HSYNC Horizontal Sync

4 VSYNC Vertical Sync

5GND

6R0Red Data LSB

7R1

8R2

9R3

10 R4

11 R5 Red Data MSB

91369 Service Manual 3-19

Theory

Table 2: Display Connector Pinouts on CPU PCBA P161 (continued)

Pin Number Symbol Description

12 GND

13 G0 Green Data LSB

14 G1

15 G2

16 G3

17 G4

18 G5 Green Data MSB

19 GND

20 B0 Blue Data LSB

21 B1

22 B2

23 B3

24 B4

25 B5 Blue Data MSB

26 GND

27 ENAB

28 VCC +5 V

29 VCC +5 V

30 R/L Horizontal display mode select

31 U/D Vertical display mode select

Settle the horizontal display position

91369 Service Manual 3-20

Theory

Parameter Modules

Any single-high Spacelabs Medical parameter module can be inserted into the module slot of the monitor.

The module receives +5 VDC, +12 VDC, and -12 VDC power from the monitor and communicates with the monitor via an SDLC data bus. In the most general terms, the module initially downloads a program (“table code”) into the monitor over the SDLC bus. This enables the monitor to interpret messages from/to the module. The module sends events and data to the monitor, which typically cause the monitor to display waveforms, keys, etc. The monitor also responds to key presses of the module’s keys, which causes various actions to occur, such as changing the way data is displayed.

For more information on the SDLC data bus, refer to SDLC Interface on page 3-11.

The theory of operation of a particular module can be found in that module’s service manual.

CPU PCBA Connectors

Table 3 provides a summary of all CPU PCBA connectors.

Table 3: CPU PCBA Connectors

Reference Connector Type Description

J191 RJ45/external Ethernet connector

J291 USB (single)/external Keyboard/mouse/standard USB

J391 USB (dual)/external Keyboard/mouse/standard USB

J560 80-pin/internal Interconnect PCBA

J941 0.1 ctr 10-pin/internal Alarm connector

P590 2 × 5 header/internal USB header

P710 0.1 ctr 10-pin/internal Jtag port

P960 2 × 8 header Development Port

91369 Service Manual 3-21

Theory

CPU PCBA Jumpers

The CPU PCBA also has several jumpers for various configuration and testing purposes. These are summarized in Table 4.

Table 4: CPU PCBA Jumpers

Reference Description Default Configuration Comments

P040 Fan Open No jumper

P100 Power input Open No jumper

P200 Battery connector Open No jumper

1-2 — Color TFT/EL

P250 Display voltage 1-2

P410 Battery charger debug 1-2 1-2 — Normal operation

P412 Open

P590 Onboard USB Open Not used, no jumper

P710

P750

P990 SuperCap discharge Open

PLD programming header

CPU reset configuration

1-2

2-3 — Color TFT Open

2-3 — Debug mode Open

1-2 — Initial PCBA code loading 2-3 — Normal operation

Open — Normal operation Closed — Discharges SuperCap

5 V display 3 V display Display disabled

Charger OFF

JTAG programming

Pulls RSTCONF# high Pulls RSTCONF# low

I/O PCBA Connectors

Table 5: I/O PCBA Connectors

Reference Connector Type Description Internal/External

P1 9-pin D SDLC External

P2 DB9 RS-232 serial interface External

P3 DB15HD Video output External

J3 14-pin D Alarm relay External

91369 Service Manual 3-22

Theory

Interconnect PCBA Connectors

Table 6: Interconnect PCBA Connectors

Reference Connector Type Description Internal/External

J1 80-pin CPU PCBA Internal

J2 30-pin RCU PCBA Internal

J3 50-pin Recorder Internal

J4 SDLC INTFC to CPU Internal

J5 Misc. signals INTFC to CPU Internal

J6 Ethernet INTFC to CPU Internal

J9 15-pin SDLC Internal

91369 Service Manual 3-23

Maintenance

Contents

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Mechanical Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Electrical Safety Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Functional Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Assembly/Disassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Overview

The following information describes the requirements and tests necessary for safety and performance verification of the monitor.

Caution:

Observe precautions for handling electrostatic-sensitive devices!

Note:

• Never touch electrostatic-sensitive electronic components without following proper anti-static

procedures, including the use of an ESD wrist band and mat. An electrostatic discharge from your fingers can permanently damage electronic components and cause latent failures.

• All static-sensitive electronic components are packaged in static-shielding bags. Retain the bag for

repackaging the component should you need to store it or return it to Spacelabs Medical for any reason.

• Cleaning, preventive maintenance, and safety checks should be performed annually and following any

product disassembly/assembly. Preventive maintenance and safety checks must be performed by trained personnel only.

Required Test Equipment

• Electrical Safety Analyzer — Dynatech Nevada 232C or equivalent

• Patient Simulator — Dynatech Nevada 300B or equivalent

Note:

• Before testing, ensure that the module housing(s) and its DC power supply(s) have their associated

cables attached, but are not interconnected.

• Ensure that the Ethernet cable and AC power sources are removed.

• The AC line is auto detected; no user selection is necessary.

• Ensure that the leakage test equipment is calibrated.

91369 Service Manual 4-1

Maintenance

Mechanical Inspection

Verify that:

• The monitor and all optional equipment are clean.

• All screws are tight.

• The case and connector pins are not damaged.

• There are no frayed or pinched wires or cables.

Electrical Safety Testing

Safety testing protects the patient from electrical shock, especially micro-shock. It has been determined experimentally that current values in the microampere (μA) range may cause fatal arrhythmias in electrically susceptible patients. A patient is deemed electrically susceptible when connected to monitoring equipment.

Definitions

Classification — IEC/EN/UL 60601-1 Safety standard designation for the class of equipment and type of

patient applied parts that indicate the degree of protection provided against electrical shock.

Leakage Current — Current that is not functional. It includes patient leakage, ground leakage, and enclosure (or chassis) leakage.

Patient Lead Leakage — Current that flows from the applied part of the patient lead to ground.

Chassis Leakage — Current flowing from the enclosure (or from conductive parts accessible to the operator)

through the ground conductor.

Normal Condition — Condition in which all means provided for protection are intact. Includes, ground connections, insulation, creepage and clearance distances.

Single Fault Condition — Open ground, open neutral, line voltage on a patient connection, or any single state other than normal condition that could compromise patient safety.

UUT — Unit Under Test.

Spacelabs Medical does not endorse standards to the exclusion of others. Therefore: BE SURE TO CHECK

YOUR LOCAL REQUIREMENTS TO ENSURE YOUR EQUIPMENT SAFETY TESTS COMPLY WITH LOCAL STANDARDS. Generally accepted standards for medical monitoring equipment, such as the

Underwriters Laboratory (UL) and the National Fire Protection Association (NFPA) standards, are summarized in Table 1.

91369 Service Manual 4-2

Maintenance

Table 1: Summary of Standards for Medical Monitoring Equipment

International Mains to

Chassis Leakage

100 μA - normal condition, ground attached (AC connector to chassis)

500 μA - single fault condition, open ground or reverse polarity

* Measured from the AC Power cord third wire ground to the most distant ground attachment

300 μA - normal condition, ground attached (AC connector to chassis)

300 μA - single fault condition, open ground or reverse polarity

U.S. (120 V) Mains to

Chassis Leakage

Mains Resistance

500 milliohms*

Equipment Required

Electrical Safety Analyzer, Fluke model 232D or equivalent.

These tests should be performed according to the hospital’s scheduling requirements, at least annually or after repair or modification.

Warning:

Before starting safety tests, ensure that no patient is connected to the device under test. If safety tests must be performed on equipment currently monitoring a patient, obtain permission to disconnect the cables from the monitor and patient.

Note:

All tests must be performed according to the safety analyzer’s operations manual, and any local requirements.

Ground Resistance

1 Attach the power cord to the monitor under test, then measure the resistance from the AC power cord third

wire ground to a chassis location, such as the equipotential post on the rear of the monitor.

2 Verify that the resistance is less than 500 milliohms (0.5 ohms).

Chassis Leakage Current Tests

1 Plug the leakage analyzers into mains power.

2 Plug the equipment into the analyzer’s AC receptacle.

3 Verify that the leakage current from the chassis to ground is less than the values in Table 2.

91369 Service Manual 4-3

Maintenance

Table 2: Enclosure Leakage Test Conditions and Limits

Neutral

Condition

Closed neutral Closed ground Normal polarity 100 μA 300 μA

Open neutral Open ground Normal polarity 500 μA 300 μA

Closed neutral Open ground Normal polarity 500 μA 300 μA

Ground

Condition

Polarity

International

Limit

U.S. Limit

Patient Lead Leakage Current Tests (Patient Modules)

Refer to the service manual of the specific module(s) you are using for patient lead leakage test instructions.

Preventive Maintenance

A Spacelabs Medical Field Service Engineer or qualified hospital biomedical technician should check the monitor and optional equipment for acceptable performance and electrical safety to ensure they operate according to current requirements.

Touchscreen Calibration

In the event the touchscreen becomes difficult to use or a replacement has been installed, you may need to calibrate it. This can be performed using the calibration function in the Biomed menu.

To perform the calibration, attach a mouse (in the event the touchscreen is unusable) and perform the following:

1 Power ON the monitor with the mouse attached and wait for the monitor to pass the self tests.

2 Click (or touch) the MONITOR SETUP key and then click (or touch) the PRIVILEGED ACCESS key.

3 Enter the Biomed password (default is Biomed).

4 Click (touch) MONITOR CALIBRATION.

5 Click (touch) TOUCHSCREEN CALIBRATION and wait for the Reset Monitor dialog box to display. Click

(touch) the RESET MONITOR key. The monitor will reset.

6 After 15 to 20 seconds, a lighted box will appear in the upper left corner of the screen. Touch the lighted box

for one or two seconds until it disappears.

7 Two more lighted boxes will appear, one at a time, in the upper right and lower right corners. Touch them

as they appear.

8 After touching these three corners one at a time as the boxes appear, the touchscreen is calibrated.

91369 Service Manual 4-4

Maintenance

Functional Tests

Monitor Self-Test

A power-ON self-test is performed each time the monitor is turned ON.

• The power ON/OFF switch (refer to Figure 2-1 on page 2-2) illuminates indicating +5 V is present.

• If the monitor is operating on external AC power, the power LED on the front bezel also illuminates.

• If the monitor is operating on AC power and batteries are being charged, the battery A and battery B status LEDs on the front bezel flash ON and OFF at a constant rate. Once the batteries are fully charged, these LEDs remain ON. If no battery is present, one or both of the battery status LEDs will remain OFF.

Monitor Functional Tests

This procedure verifies operation of the recorder assembly, network connectivity, alarm relay output, and external SDLC connections. It assumes that a 91496 multiparameter module (ECG, RESP, two PRESS channels, and two TEMP channels) is available for testing purposes. In the event that these parameters are not available, similar modules may be substituted.

Verifying Monitor Functions

Note:

To begin the test, make sure no modules are inserted and no Flexports or other SDLC devices are connected.

1 Plug in the monitor and verify that the front bezel power LED is lit. If one or two batteries are installed, verify

that the appropriate battery LED(s) are ON solid or flashing.

2 Press the power ON/OFF switch to power ON the monitor and verify the following sequence of events:

a The power ON/OFF switch illuminates.

b The embedded alarm light LEDs illuminate briefly. Verify that all LEDs are functional.

cThe Diagnostic menu displays. (If errors are noted during power ON, contact your Spacelabs Medical

Field Service Engineer.)

d If batteries are installed, the fan begins operating within 60 seconds after turning ON the monitor. The

fan will then turn OFF unless the internal temperature requires additional cooling by the fan.

e Monitor keys display along the right side of the screen.

3 Insert the ECG module without a patient cable connected. Verify that the ECG parameter key appears on

the screen with ??? and the message LEADS OFF.

4 Connect a patient simulator to the ECG input with a patient cable. Set the simulator to a known rate and

verify that the ECG count and the lead being monitored are displayed to the right of the ECG parameter key. Also verify that the ECG waveform appears on the screen.

5 Connect a patient simulator to the invasive pressure inputs.

6 Zero the pressures and verify that the numerics and waveforms are accurate.

91369 Service Manual 4-5

Maintenance

Optional Recorder Assembly

If the monitor is configured with the optional recorder assembly, verify that the monitor initiates a recording by touching the RECORD key and then touching one of the flashing parameter keys.

Note:

The printed waveform should be free from defects such as gaps, extra lines, etc. If not, notify a Spacelabs Medical Field Service Engineer for servicing, or replace the recorder (refer to

Alarm Relay Output

If the monitor is configured to use the alarm relay output to interface to an external alarm device:

1 Plug the cable into the external alarm connector and initiate a high-priority alarm. Verify that the external

alarm responds appropriately.

2 If an external alarm light capable of displaying multiple colors is attached, turn the high-priority alarm OFF

and generate a medium-priority alarm. Verify that the external alarm responds appropriately.

3 Repeat step 2 for a low-priority alarm.

An alternate method is to connect the cable and turn the monitor ON and then OFF. Each color of the embedded alarm light will momentarily illuminate. An external alarm light will also briefly illuminate.

Recorder on page 5-19).

Ethernet (Wired)

1 Attach a 10/100BaseT cable from an active network onto the side panel connector.

2 Touch the SPECIAL FUNCTIONS key and verify that other monitors appear in the Remote View menu.

Assembly/Disassembly Procedures

Caution:

Before beginning any disassembly procedures, power OFF the monitor, disconnect the AC cord from the AC power receptacle, and remove the batteries.

Note:

The external power supply is not designed for disassembly.

Required Tools and Parts

• Anti-static mat with wrist strap

• #1 and #2 Phillips-head screwdriver

• 5/16-inch nut driver

• 3/16-inch nut driver

91369 Service Manual 4-6

Maintenance

Setup for Disassembly

1 Remove the external power supply cable and battery(ies) if present.

2 Remove the patient parameter module.

Installing or Replacing the Optional Recorder Assembly

Note:

Unless purchased separately for a monitor already in the field, the recorder option is installed at the factory. Order an upgrade from your local Sales Representative.

The recorder option consists of two components: the recorder module and the recorder CPU PCBA.

The recorder CPU PCBA and recorder module fit into the upper slot on the monitor’s left side (refer to Figure 4-

1). The recorder CPU PCBA must be installed first, followed by the recorder module. Refer to Table 1 on page 6-1 for the recorder CPU and recorder assembly part numbers.

Installing the Recorder

Warning:

A safety hazard is created if the mylar insulator is not properly installed over the recorder CPU PCBA.

1 Power OFF the monitor.

2 Remove the printer “dummy panel” by removing the screw located in the top portion of the battery

compartment.

3 Remove the recorder hold cover and insert the recorder CPU into the connector located at the bottom of the

recorder compartment.

4 Tighten the thumbscrew to secure it to the bottom of the recorder compartment after fully inserting the PCBA

into the connector.

5 Install the insulator sheet between the bottom of the printer and newly installed recorder CPU PCBA.

6 Insert the recorder assembly, ensuring that it fully engages the connector at the back of the recorder

compartment. Press the release bar to open the recorder assembly and tighten the two phillips-head screws located at the rear of the recorder.

91369 Service Manual 4-7



Maintenance



Figure 4-1: Recorder assembly and CPU PCBA

 Release bar

 Recorder assembly

 Recorder CPU PCBA, installed



91369 Service Manual 4-8

Maintenance

Replacing the Recorder

1 Remove the recorder assembly (if installed) by first opening the printer door, loosening the two captive

screws, and then pulling out the assembly at the top.







Figure 4-2: Optional recorder assembly

 Release bar

 Recorder assembly

 Recorder CPU PCBA, installed

2 If replacing the recorder CPU PCBA, loosen the thumbscrew and pull it forward until it is free of the

connector.

91369 Service Manual 4-9

Maintenance

Figure 4-3: Recorder CPU PCBA

3 Reverse the procedure to re-assemble the recorder.

Inserting Recorder Paper

Two rolls of thermal recorder paper have been included with the optional recorder assembly.

To insert a roll of paper:

1 Press the right side of the release bar at the top of the recorder assembly. The front of the recorder assembly

is hinged at the bottom and will drop open, revealing two spoon-shaped arms that hold the paper roll spindle between them.

2 Unroll a short length of paper from the roll, and orient the roll so that the paper feeds from the bottom.

3 Slip the paper roll spindle between the plastic arms, and close the front of the assembly so that the end of

the paper roll protrudes out of the recorder assembly just below the release bar.

91369 Service Manual 4-10

Maintenance

Removing the Bezel Assembly

1 Remove the bezel by removing the five screws along the bottom of the enclosure, and then stand the

monitor upright and remove the four screws along the top of the bezel.





Figure 4-4: Bezel screw locations

 Five screws along the bottom of the bezel

 Four screws along the top of the bezel

2 With the monitor standing upright, gently move the top of the bezel and disconnect the flat cable running

from the display to the CPU PCBA.

91369 Service Manual 4-11

Maintenance





 Front panel power/LEDs cable

 Video cable

Figure 4-5: Removal of the front bezel

91369 Service Manual 4-12

Maintenance

Caution:

• Never pull on the flex cable. This may damage the cable end or the connector.

• Take care when handling cables and connectors. They are fragile and can be damaged.

Note:

• Due to the short length of the video cable, remove it prior to fully opening the case.

• Proper operation of the monitor depends upon correct cable re-insertion following disassembly. Ensure

that the flex cable is aligned properly and fully inserted into the connector prior to locking the connector tab down.

3 Remove the touchscreen five-wire cable from the CPU PCBA.

4 Remove the power switch/monitor assembly by sliding the “ZIF” connector locking mechanism outward,

then removing the cable from the socket.

5 Unlatch the touchscreen cable and remove the eight 6-32-inch × 1/4-inch screws (three along the top, three

in the center, and two at the bottom of the PCBA).

If you are replacing the front bezel, proceed to the next section (Replacing the Display or Touchscreen Assembly, Backlight Inverter, and Power Monitor Assemblies) for removal of the remaining front bezel assembly components.

Replacing the Display or Touchscreen Assembly, Backlight Inverter, and Power Monitor Assemblies

1 Remove the front bezel assembly as described in Removing the Bezel Assembly on page 4-11.

2 Remove the four screws securing the display assembly to the front bezel and carefully lift the assembly from

the bezel.

Figure 4-6: Removing the touchscreen display bracket

Caution:

The glass touchscreen may stick to the front of the display bracket. Do not allow it to fall off of the bracket during removal.

3 Remove the four screws securing the display to the brackets.

91369 Service Manual 4-13

Maintenance

Note:

Be careful not to leave finger prints or smudges on the front of the display or on the inside of the front bezel surface.

4 Reassemble the bezel assembly. Pay close attention to placement of the touchscreen, assuring that it is

placed within the raised portion of the bezel prior to securing the display assembly. If alignment is not correct, the touchscreen can be permanently damaged.

Figure 4-7: Touchscreen placement

5 To remove the backlight inverter, remove both cable assemblies and the two screws attaching the inverter

to the display bracket.

6 When replacing the backlight inverter, be sure to replace the mylar shield (Figure 4-8) between the PCBA

and the chassis.

91369 Service Manual 4-14



Maintenance



 Backlight inverter

 Mylar shield

Figure 4-8: Backlight inverter

91369 Service Manual 4-15

Replacing the Connector PCBA

Removing the Rear Panel

1 Remove the five 6/32-inch × 1/2-inch screws.

Maintenance

Figure 4-9: Rear panel replacement

2 Remove the two 10/32-inch × 1/2-inch screws.

3 Carefully remove the rear panel and set it aside for further disassembly.

Removing the Connector PCBA

1 Remove the six 3/16-inch jack screws that secure the SDLC, video, and RS-232 connectors.

2 Remove the two 6/32-inch × 1/4-inch screws that secure the SDLC PCBA to the rear panel.

3 Reinstall the replacement connector PCBA in reverse order.

Replacing the CPU PCBA

1 Remove the batteries, if present.

2 Remove the bezel (refer to Removing the Bezel Assembly on page 4-11).

3 Remove the nine screws that hold the CPU PCBA to the chassis (refer to Figure 4-10).

91369 Service Manual 4-16



Maintenance















Figure 4-10: Nine screws holding the CPU PCBA to the chassis

4 Place your fingers into the space on either side of the upward protrusion of the CPU PCBA (located near

the two top mounting screws) and pull. This will free the CPU PCBA-to-Interconnect PCBA connection.

5 Pull the CPU PCBA from the top carefully until the cables along the bottom of the assembly are visible.

6 Disconnect the three cables and set the CPU PCBA into a static-protected area.

7 Reinstall the replacement CPU PCBA in reverse order.



Replacing the Wireless Radio Card

If the monitor is equipped with optional wireless functionality (option Z), refer to the following instructions if radio card replacement is necessary.

To remove the wireless radio card:

1 Remove the batteries, if present.

2 Remove the bezel (refer to Removing the Bezel Assembly on page 4-11).

3 Hold the PCMCIA card adapter in place and press the eject bar (). The radio card () releases from

adapter. Remove the card and detach the antennas.

91369 Service Manual 4-17

Maintenance

Figure 4-11: Radio card released from the PCMCIA card adapter

To install the wireless radio card:

1 Remove the replacement radio card (P/N 010-1644-xx) from the packaging.

2 Reattach the antennas (refer to Figure 4-12).

Caution:

Be very careful to properly align the antenna connector and the receptacle before applying pressure to mate the two.

If the connector cannot be seated using finger pressure, use the blunt end of a small tool (such as a 5/32-inch hex wrench) to apply pressure to the connector.





Antenna

No!

Figure 4-12: Antenna connection to the radio card.

3 Insert the radio card into the Compact Flash card adapter on the main CPU PCBA. When the card is fully

seated in the Compact Flash card adapter, the card eject bar (

Yes

Radio Card

) extends. Refer to Figure 4-13.

91369 Service Manual 4-18

Maintenance



Figure 4-13: Radio card fully seated into the PCMCIA card adapter

Replacing the Radio Card Antennas

1 Remove the radio card as described in Replacing the Wireless Radio Card on page 4-17.

2 Detach the antennas from the radio card.

3 Detach the antennas from the side bezel of the monitor. Use a thin bladed knife, if necessary, to remove

any remaining foam tape adhesive.

4 Remove the replacement antennas (P/N 117-0165-xx) from their packaging.

5 Carefully connect the two antennas by inserting the antenna connectors into the micro-coaxial connector

receptacles on the radio card (either antenna can be connected to either connector). Ensure that the connector and the receptacle in the radio card are properly aligned before applying pressure to connect them (refer to

Figure 4-12). Do not stress the antenna cables.

6 Refer to Figure 4-14 for the correct antenna placement ().

To attach the antennas:

a Remove the peel-off covering over the foam tape adhesive.

b Apply the antenna’s adhesive pad to the tip of a thin-bladed knife or small flat screwdriver.

c Use the knife or screwdriver to guide the antenna to the correct installation point (refer to Figure 4-15).

Ensure that the antenna cable is not stressed or kinked.



Figure 4-14: Antenna placement

91369 Service Manual 4-19

Maintenance

7 Press down firmly, and hold the adhesive pad in place while removing the screwdriver or knife.

Figure 4-15: Antenna installation, using a knife blade as a guide

91369 Service Manual 4-20

Maintenance

Removing the Chassis Assembly

The chassis assembly includes the sheet metal, Interconnect PCBA, and the fan/battery connection assembly.







Figure 4-16: Chassis assembly

 Fan/battery connection assembly

 Interconnect PCBA

 Battery enclosure

To remove the chassis assembly:

1 Remove the rear panel, bezel, CPU PCBA, module, and optional recorder and recorder CPU as previously

described.

2 Place the monitor face down with the bottom facing you.

3 Remove the screw near the ground terminal area.

4 Remove the two screws with washers from the rear panel.

Note:

These washers must be used when replacing the screws. If they are left out, the screws will penetrate into the battery chassis and interfere with the battery clearance.

5 Remove the three 6/32-inch × 0.375-inch screws from the bottom of the monitor.

6 Turn the assembly over and remove the two top screws to secure the wall of the module compartment to

the rear housing.

7 To lift the chassis out of the case, place your left hand through the battery door and your right hand into the

module access opening. Work the assembly upward, allowing the top to move ahead of the bottom.

8 The chassis is now ready for further disassembly.

91369 Service Manual 4-21

Maintenance

Replacing the Fan/Battery Contact Assembly

1 Remove the chassis assembly from the housing as previously described (refer to Removing the Chassis

Assembly on page 4-21).

2 Separate the chassis assembly from the module wall assembly by removing the two screws above the

battery ejection springs and the two screws near the bottom.

Interconnect PCBA

Interconnect frame

Module door

Module wall assembly

Battery divider

Chassis assembly

Battery ejection springs

Fan/battery contact assembly (includes fan)

Battery ejectors

Figure 4-17: Replacing the fan/battery contact assembly and Interconnect PCBA

3 Pry up the center retainer on the battery contact assembly (near the battery ejection springs). This should

free the fan/battery contact assembly.

4 Remove the screw between the chassis and the Interconnect PCBA.

91369 Service Manual 4-22

Maintenance

Replacing the Interconnect PCBA and Frame

1 Remove the chassis assembly from the housing as previously described.

2 Separate the chassis assembly from the module wall assembly by removing the two screws above the

battery ejection springs and the two screws near the bottom.

3 Remove the screw between the chassis and the Interconnect PCBA.

4 Separate the Interconnect PCBA and frame.

5 Reassemble the monitor in reverse order.

Replacing/Aligning the Module Door

1 To remove the door, remove the two nuts fastening the hinge to the wall of the module compartment

assembly. This will free the door assembly. When installing a new door, do not tighten the two nuts until the chassis assembly is completely secured to the rear housing.

2 After the chassis and rear housing are mated, position the door and tighten the two nuts.

rear viewfront view

Figure 4-18: Module door

Replacing the Embedded Nurse Alert Assembly

1 Remove the front bezel carefully.

2 Slide out the embedded nurse alert LED assembly.

3 Reverse the procedure to install the replacement.

91369 Service Manual 4-23

Maintenance

Cleaning

Clean the case by washing it with mild soap and water or use Plast-N-Glas cleaner. Use TF solvent for cleaning the electronic connectors and contacts as necessary.

Caution:

• Do not autoclave.

• Never use solvents, acetone, abrasive cleaning agents, or abrasive cleaning pads.

• Use only approved cleaning agents including 70% alcohol, soap and water, green soap, or 10%

bleach solution.

Note:

Avoid directly spraying liquids into the recorder openings.

91369 Service Manual 4-24

Spacelabs 91369 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Introduction

Setup

Theory

Maintenance

Troubleshooting

Parts

Directory of Keys

Glossary

Introduction

Overview

Physical Dimensions

Electrical Specifications

AC Line Requirements

Environmental Requirements

Regulatory Approvals

Monitor Options

Display

Setup

Unpacking the Monitor

Assembling the Monitor

Power and Battery Status

Connections

Rear Panel

Side Panel

Cabling

Maximum Cable Lengths

SDLC External Devices

SDLC Bus Termination

Alarm Relay

Network Installation

Ethernet Network Connection

Ethernet Network Disconnection

Power-ON Test

External Devices

Module Tests

Configuring the Monitor

Network Setup

Network Configuration Messages

Serial Ports

Monitor Calibration

Change Biomed Password

Clinical Menu

Tone Configuration

Edit Drug List

Minimum Volume

System Information

Define Patient Identifier (PI) String

Reset Monitor

Theory

Overview

Major System Components

Main Enclosure

External Connectors

External Controls

Printed Circuit Board Assemblies (PCBAs)

CPU PCBA

Power Supply Section

Core Processor Subsystem

PCI Subsystem

PCI/ISA Bridge

Interconnect and Connector PCBAs

Bezel Assembly

Boot Sequence Overview

Normal Operation Overview

Main Subsystems and Tasks

Display

Parameter Modules

CPU PCBA Connectors

CPU PCBA Jumpers

I/O PCBA Connectors

Interconnect PCBA Connectors

Maintenance

Overview

Required Test Equipment

Mechanical Inspection