Welch Allyn Acuity Installation Guide

Acuity® LT Wireless Central Monitoring System

Installation Guide

Acuity LT System software version 7.0x

ii Welch Allyn Wireless Acuity LT Central Monitoring System

Welch Allyn assumes no responsibility for any injury to anyone, or for any illegal or improper use of the product, that may result from failure to use this product in accordance with the instructions, cautions, warnings, or statement of intended use published in this manual.

Welch Allyn, Propaq, Micropaq, Acuity, FlexNet, and Flexible Monitoring are registered trademarks of Welch Allyn. Link To Acuity is a trademark of Welch Allyn.

Software in this product is Copyright 2007 Welch Allyn or its vendors. All rights are reserved. The software is protected by United States of America copyright laws and international treaty provisions applicable worldwide. Under such laws, the licensee is entitled to use the copy of the software incorporated with this instrument as intended in the operation of the product in which it is embedded.

The software may not be copied, decompiled, reverse-engineered, disassembled or otherwise reduced to human-perceivable form. This is not a sale of the software or any copy of the software; all right, title and ownership of the software remain with Welch Allyn or its vendors.

For information about any Welch Allyn product, call the nearest Welch Allyn representative:

USA 1 800 535 6663

+1 315 685 4560

Canada 1 800 561 8797 China +86 21 6327 9631

European Call Center +353 46 9067790 France +33 1 55 69 58 49

Germany +49 7477 9271 86 Japan +81 3 3219 0071

Latin America +1 305 669 9003 Netherlands +31 157 505 000

Singapore +65 6419 8100 South Africa +27 11 777 7555

United Kingdom +44 1332 363812 Sweden +46 85 853 6551

Reorder Part Number 810-2377-XX

Manual Part Number 810-2377-00 Rev A, 03/2007

Welch Allyn 8500 SW Creekside Place Beaverton, Oregon 97008-7107

www.welchallyn.com

Printed in USA

Australia +61 2 9638 3000

800 074 793

Contents

1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 - Plan the installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

iii

About this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Conventions used in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Safety and compliance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Related documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Wireless Acuity LT System components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Plan equipment location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Carefully plan the location of access points . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installation plan examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Installation worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 - Install Acuity LT System wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Install wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 - Install the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Unpack and identify Acuity LT System components. . . . . . . . . . . . . . . . . . . . . . 17

Perform a preliminary system operation check. . . . . . . . . . . . . . . . . . . . . . . . . . 20

Install the Acuity LT System equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Perform a final system operation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Final system components check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Received signal strength indication (RSSI) check. . . . . . . . . . . . . . . . . . . . . 36

Perform final installation of APs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5 - Troubleshooting and support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

A - Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

B - Check or change a patient monitor network name (ESSID) . . . . . 53

Micropaq monitor network name (ESSID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Propaq LTR monitor network name (ESSID). . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Wireless Propaq CS monitor network name (ESSID) . . . . . . . . . . . . . . . . . . . . . 56

iv Contents Welch Allyn Wireless Acuity LT Central Monitoring System

C - Install additional APs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

To order additional APs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Introduction

About this manual

This guide provides information for planning and performing the installation of your wireless Acuity LT System. This information describes how to:

• Plan the installation

• Install the wiring

• Install the system

• Troubleshoot the system

In order to make sure your equipment is installed properly, be sure to read and follow all of the steps provided in this manual.

For information about how to operate the wireless Acuity LT System, refer to the Acuity LT and Mobile Acuity LT Central Monitoring Systems Directions For Use (810-2401-XX).

Conventions used in this manual

WARNING Indicates conditions or practices that could lead to illness, injury, or death.

Note

Caution In this manual, indicates conditions or practices that could damage the

equipment or other property.

Provides additional important information.

2 Chapter 1 Introduction Welch Allyn Wireless Acuity LT Central Monitoring System

Safety and compliance information

The CE Mark and Notified Body Registration Number signify the product meets all essential requirements of European Medical Device Directive 93/ 42/EEC.

Table 1. Acuity LT System compliance with safety standards

Acuity LT System component(s) Product category Organization and

Propaq CS, Propaq LTR and Micropaq monitors

All components operating together as a system

All information systems components Information Technology Equipment EN 60 950:1994

Wireless Acuity LT Central Monitoring System System cordless receiver cabinet

a. When the equipment is operated in a commercial environment, Class A limits provide reasonable protection against harmful

interference. The equipment generates, uses and can radiate radio frequency energy; if it is not used in accordance with this reference guide, or if it is modified from original installation, it might cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user is required to correct the interference at his own expense.

Medical Equipment IEEE 802.11, Industrial

Electromagnetic compatibility for Medical Equipment

Medical Systems IEC 60 601-1-1:2001

Electromagnetic compatibility FCC Class A

standard

Scientific Medical (ISM) band, 2.4 GHz; two-way communications

IEC 60 601-1-2:2001

WARNING The wireless Acuity LT System must be installed by technical personnel qualified by training and experience in compliance with the safety standards listed above, in compliance with local and state regulations, and according to the instructions provided in this guide. Improper installation could result in improper operation of the wireless Acuity LT System, prevent patient monitoring at the Central Station, and cause equipment damage or failure.

WARNING After making any changes to Acuity LT System hardware or software, make sure that system performance is validated by qualified personnel according to instructions in this guide.

WARNING Although the printer is optional with the Acuity LT System, be aware that there is no physical record available for Acuity LT System events (such as alarms) without a printed paper copy.

Installation Guide Chapter 1 Introduction 3

Plan the installation

System overview

Mobile device running Clinician Notifier software within the hospital network

Access point

WACS

Switch

Wireless Propaq and Micropaq monitors communicate through access points

Modem

Laser Printer

Wireless Acuity LT Central Station Monitoring System

The Acuity LT Central Station receives, displays and analyzes information from various wireless monitoring devices. The Acuity LT System CPU operates with Welch Allyn Acuity LT System software. Patient data, alarms and equipment alerts are presented on the display.

Network components included with the system enable connections to wireless patient monitors and a laser printer. An external modem facilitates remote technical support.

The Welch Allyn Connectivity Server (WACS) is an option to the Wireless Acuity LT Central Monitoring System. WACS consists of a server platform on which Welch Allyn software options are installed. Link To Acuity System patient information to mobile devices running Welch Allyn Clinician Notifier software. A hospital network can carry information to the Acuity System and carry patient data to the hospital information system (HIS/CIS).

The system stores patient data and trend information for up to 96 hours, through the Full Disclosure feature. The system can be expanded to support up to 28 patients: this type of system includes a larger terminal server, a second display, and a trackball.

Acuity LT Central Station

is a WACS option that delivers Acuity

Uninterruptible Power Supplies (UPSs)

6 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Wireless Acuity LT System components

Patient monitors

The Acuity LT System links Micropaq, Propaq LTR, and Propaq CS wireless portable patient monitors to the Acuity LT Central Station.

The 12-patient Acuity LT System capability can be expanded to support up to 28 patient monitors. This system includes a second display with trackball, and a standard quantity of four APs (expandable to a total of seven APs).

Acuity LT Central Station

The Acuity LT Central Station consists of a Sun Microsystems workstation CPU and display. The CPU operates with Welch Allyn’s Acuity LT System software. Patient data, alarms and equipment alerts are presented on the display.

Network

The wireless patient monitors communicate through an internal radio card to a wireless local area network (WLAN) using international standard IEEE 802.11. This product operates within the 2.4GHz RF spectrum (super high frequency). It uses frequency hopping spread spectrum (FHSS) technology to establish bi-directional data linkage to an access point (AP). The APs provide the conversion from wireless to wired communication through connection to an ethernet switch using international standard IEEE 802.3. The switch connects to the CPU using standard Ethernet 10 Base-T.

As each wireless patient monitor is moved throughout the facility, network communication automatically transitions between APs without disruption of service, provided that the APs are properly located in the facility.

Network configuration

The CPU, APs, and monitors are configured with an 802.11 Extended Service Set ID (ESSID) or network name unique to the Acuity LT System (such as “com8.protocol”). The network name for the CPU and APs must be configured at the factory. The network name for each wireless monitor can be set locally. If a facility has more than one Acuity LT System, the CPU, AP, and wireless monitors must be configured at the factory with a different network name to prevent interference between networks.

In addition to the network name, each AP is uniquely configured with a number to distinguish it from other APs in the network. Each AP is uniquely labeled and must be factory-configured.

Antennas

Each AP has two antennas, the Sandra “D” (SD) type and the whip type antenna. For best reception, the SD is typically mounted on the ceiling in a horizontal orientation, and the whip type is mounted vertically on the AP.

Modem

An external modem is connected to the CPU and a dedicated analog phone line. Modems can vary according to the telecommunication requirements in different countries. The modem allows remote technical support if required.

Installation Guide Chapter 2 Plan the installation 7

Plan equipment location

The following illustration shows typical locations for installation of wireless Acuity LT System components.

Sandra “D” (SD) type antenna is mounted on the ceiling for best reception. Whip-type antenna is mounted on the AP.

Power-over-ethernet (PoE) device separates out DC power from the data cable and

routes data and power to the AP.

Access points (APs) are mounted in hallways, seven inches from the

ceiling or above the ceiling.

Data cables are routed from the switch to the

APs and CPU, typically up through the wall and

overhead through ceiling access.

Typical network

termination for

data cables.

Display(s) and CPU are on a desk at the nurses station.

Printer is located near the CPU.

UPS provides temporary power to

components at the nurses station.

Modem connects to the CPU and to a dedicated analog phone line to allow remote access for technical support.

Switch and network components are typically located in an equipment closet.

UPS provides temporary power to the switch

and network components.

Power-over-ethernet (PoE) devices

merge DC power for the AP into the

data cable, for ease in wiring.

8 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Carefully plan the location of access points

It is critical to select access point locations so that they can provide the best radio reception and network coverage for your facility. When APs are properly located, the Acuity LT System automatically provides seamless network coverage as patient monitors move throughout a facility.

Distance

Generally, the Acuity LT System APs and wireless monitors can effectively communicate up to a distance of about 60 feet within a medical facility that has typical construction (such as wallboard wall and metal studs) and average obstructions.

• Locate APs between 6 feet and 40 feet from each other.

If APs are closer than six feet, one AP can overload the input of the other, even though the APs are operating at different frequencies.

If APs are farther apart than 40 feet, there can be gaps in network coverage as wireless patient monitors are moved throughout the facility.

• If the standard number of APs provided with the wireless Acuity LT System does not provide adequate network coverage for your facility, it is possible to add more APs to your system (up to a maximum total of seven). See “Install additional APs” on page 59.

WARNING Do not install an access point or access point antenna closer than two feet from any location where people frequent. Installation closer than two feet could result in exposure to levels of radio frequency energy that are higher than recommended by the Federal Communications Commission (FCC). Installation above a nurses station is not acceptable.

Installation Guide Chapter 2 Plan the installation 9

Obstructions

APs and wireless monitors generally communicate best in a “line-of-sight”, with minimum obstructions between the APs and the monitors. Radio signals lose strength when they pass through obstructions.

While the APs and wireless monitors can overcome some amount of obstruction, too much results in intermittent or total disconnection.

Table 2. Common obstructions to radio reception

Type of obstruction Description

Minor obstructions Radio signals can generally penetrate these types of obstructions without

Typical partition walls (sheetrock/ wallboard, with metal studs) and nonmetal doors

Curtains, mattresses, linens, suspended ceiling tiles and plain glass windows

Major obstructions that should be avoided

Any large amount of metal Large metal equipment, metal lockers or metal cabinets.

Load-bearing walls, stairwells, fire walls, metal-clad fire doors, elevators and elevator foyers, wire-mesh windows

Shielded rooms, such as Radiology The shielding typically prevents any transmission of radio signals.

Large concentrations of water, such as a storage closet with large amounts of saline solution

Sources of radiation such as x-ray machines, microwave ovens or other wireless network antennas

a severe loss of signal strength.

APs and wireless monitors can generally communicate through at least two partition walls. Typically the metal studs are placed far enough apart to allow sufficient radio signals to pass through.

No serious problem.

These obstructions can completely prevent effective communication.

These are generally constructed with a lot of metal and metal reinforcements. They also extend above partition walls and suspended ceilings to the structural floor above, which increases the obstruction.

Water and other liquids severely obstruct radio signals.

To reduce interference, keep Acuity LT AP antennas at least 7 feet away from other network antennas or other sources of radiation.

10 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Installation plan examples

The following examples show some typical Acuity LT System layouts. These examples are for illustration only; they are not a guarantee of actual coverage. The network coverage in each facility depends on the amount and type of obstructions.

Note that although the examples show the switch, PoEs, and a UPS located in a nearby equipment closet, the equipment closet is optional. This equipment can be located in either of the following places:

• Near the Acuity LT Central Station at the nurses station if there is adequate space.

• As far as 300 feet away from the Acuity LT Central Station. 300 feet is the maximum length of wiring allowed between the switch and the CPU.

Figure 1. L-shape floor plan

10 feet

Allow as much overlap as possible between AP areas while still covering the desired area in the facility.

Access point 1

Acuity LT Central Station

Equipment closet

Access point 2

Effective network coverage is limited to approximately 60 feet, depending on the number of walls and other obstructions.

Confirm coverage in your facility by testing.

Installation Guide Chapter 2 Plan the installation 11

Figure 2. Single-corridor floor plan

Access point 1

Acuity LT Central Station

Equipment closet

Access point 2

10 feet

12 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Figure 3. Double-corridor floor plan

Access point 1

Equipment closet

Acuity LT Central Station

Access point 2

10 feet

Installation Guide Chapter 2 Plan the installation 13

Installation worksheet

Use this worksheet to identify locations for Acuity LT System equipment and APs for your facility. Be sure to consider the following:

• All of the factors regarding obstructions and network coverage (“Carefully plan

the location of access points” on page 8).

• 60 feet is the approximate maximum distance between an AP and patient

monitor for effective network coverage assuming standard construction. Actual network coverage varies according to each facility and must be tested on site.

• Two APs must be located between 6 feet and 40 feet from each other. For

systems with more APs, each AP must be within 40 feet of another AP.

• 300 feet is the maximum length of wiring between the switch and the CPU.

• 300 feet is the maximum length of wiring between the switch and the AP.

60 ft.

Approximate maximum distance between AP and patient monitor

10 ft.

14 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Install Acuity LT System wiring

After the installation is planned, qualified personnel can install the wiring for the wireless Acuity LT System.

Power requirements

The following power requirements are required at the nurses station and the equipment closet (or wherever the terminal server and UPS are located).

Table 3. Power requirements for wireless Acuity LT System equipment

Location Equipment Required AC power outlets/minimum

Central nurses station • Each display (2 displays for 28-patient

Equipment closet (near nurses station)

power

1 power cord plugs into UPS

system)

•CPU

• External modem

• Uninterruptible power supply (UPS) 1 outlet/500 VA

• Printer 1 outlet (does not plug into UPS)/see printer

• Switch 1 power cord plugs into UPS

• Power-over-ethernet (PoE) devices (supply power to access points)

• Uninterruptible Power Supply (UPS) 1 outlet/500 VA

• Second uninterruptible power supply (UPS) required with 4 to 7 APs, to accommodate additional PoE power adapters

(750 VA required for larger capacity UPS for 28-patient system)

manufacturer’s specifications

1 power cord for each PoE power adapter plugs into UPS (1 PoE power adapter for each AP)

1 outlet/500 VA

Hallways • Access points Power is provided from power-over-ethernet

devices, through the data cables.

16 Chapter 3 Install Acuity LT System wiring Welch Allyn Wireless Acuity LT Central Monitoring System

Install wiring

Caution All wiring must be installed in compliance with local and state safety guidelines and the following instructions and specifications.

To install local are network (LAN) ethernet cable

LAN ethernet cabling is intended for high-speed communications between the CPU, the switch and the access points.

1. Install unshielded twisted-pair (4 pair) cabling (Category 5 or 5E) between the CPU, the switch and the access points.

Maximum cable distance between the CPU and the switch: 300 feet.

Maximum cable distance between the switch and each AP: 300 feet.

Minimum installation distance between APs: 6 feet. Maximum: 40 feet.

Minimum installation distance between AP/AP antennas: 2 feet.

2. Leave at least 15 feet of extra cable at the location where each AP is to be installed.

This allows you to adjust AP locations during network testing to enable you to identify the best AP locations for communication with the monitors.

Do not install the AP mounting brackets. They will be installed later when the APs are permanently installed.

3. Install a network terminal for the CPU.

To aid in troubleshooting, label network terminal ports for data cables that will be plugged into the switch from the CPU and the APs.

4. Terminate the cabling per TIA/EIA-568 standards.

To install telephone/data cabling

Telephone/data cabling is intended for serial communication between the CPU and the Welch Allyn Technical Support department, via an external modem.

1. Install dedicated, analog, stand-alone direct inward dial (DID) telephone line.

The line must not be controlled by the local PBX or switchboard or routed through the telephone switchboard.

2. Terminate cabling with a standard telephone jack.

Install the system

Unpack and identify Acuity LT System components

Components and optional components that are not shown in the illustration are listed in the table on page 18.

• Carefully unpack and identify all of the Acuity LT System components.

18 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Table 4. Wireless Acuity LT System equipment

Equipment Item Description

Display A • Flat panel display

• AC power cord (not shown)

• Data cable for connection to the CPU, HD15-HD15

• External audio cable (not shown; allows adjustment

• A 28-patient system also includes (not shown):

(not shown)

of display speaker volume)

Second flat panel display AC power cord Second data cable for connection to CPU (HD15-DVI) Two video extension cables (to extend the distance

between the CPU and displays)

Typical installation location

Desk at nurses station

CPU B

• Sun Microsystems SunBlade 150

• Keyboard (with USB connector)

• Mouse (with USB connector)

OR Trackball with USB connector for 28-patient system

(not shown)

• AC power cord (not shown)

Printer C • Parallel printer (model may vary from what is shown)

• AC power cord (not shown)

• Parallel printer cable for connection to CPU (not shown)

Switch D

• 8-port switch (with AC power cord not shown)

• AC power cord (not shown)

• Data cable (for connection to CPU)

• Ground cable (connects to back of switch and to

building ground)

2 access points (can be

• Symbol Technologies AP-3020/AP-3021 Model can vary

expanded to maximum of 7 APs)

4 Power-overethernet (PoE) devices

• 2 Sandra “D” (SD) antennas

• 2 whip antennas

• 2 mounting brackets (for mounting APs on wall)

• 4 spectrum 24 BIAS-T power-over-ethernet (PoE)

devices (2 PoE devices for each access point)

Desk at nurses station

Equipment closet near nurses station

Central hallways near ceiling (on mounting brackets)

Mounted on ceiling near AP

Attached to AP

Central hallways near ceiling

For each AP, one PoE is in the equipment closet, one PoE is near the AP

(additional APs require additional PoE devices, power adapters, power cables, power cords, and data cables)

• 2 PoE power adapters (to provide AC-to-DC power to

2 local PoE devices in equipment room)

• 2 DC power cables (for connection between each AP

and remote PoE)

• 2 AC power cords (for connection to local PoE power adapters and UPS)

• Ethernet data cables (for connection to PoE adapters, switch, and APs)

Near PoE devices in equipment closet

Near APs

Near PoE power adapters in equipment closet

In equipment closet and near AP

Installation Guide Chapter 4 Install the system 19

Table 4. Wireless Acuity LT System equipment

Equipment Item Description

2 uninterruptible

• Uninterruptible power supplies (UPSs) provide

power supplies

For systems with 4-7 APs, a third UPS is required.

Modem H

• Ground cables (connect to back of UPS and to

• Modem for connection to CPU and dedicated analog

• Power adapter

• AC power cord

• Data cable (for connection to modem and CPU

emergency power to system components (model may vary)

For a 28-patient system, the addition of the second display requires a 750 VA UPS.

building ground)

phone line to allow remote technical support (model may vary)

Typical installation location

One UPS near desk at nurses station, one UPS in equipment closet

For systems with 4-7 APs, a third UPS in equipment closet

Near desk at nurses station

• Phone cord (for connection to modem LINE connector and dedicated phone line) and noise suppressor (attaches around phone cord)

a. Contact Welch Allyn for current part numbers and model numbers.

20 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Perform a preliminary system operation check

A preliminary check enables you to see how all of the components work together, and to confirm that all components work properly in your facility.

Before you install the equipment, it is strongly recommended that you connect all of the Acuity LT System components in the order specified in this section.

To connect the Acuity LT System components

1. Choose a suitable location with available power and a large desk or table, such as a conference room or office.

2. Assemble the Acuity LT System equipment, including a Micropaq, Propaq LTR or wireless Propaq CS patient monitor.

It is not necessary to assemble the following equipment for this preliminary check:

• 3 Ground cables (Items D3 and G1)

• 2 Mounting brackets (Items E3)

• Modem and accessories (Items H and H1 through H5)

3. Connect the components as shown in the illustration on page 21.

The photograph on page 17 and the table on page 18 provide further detail.

Note

Do not apply power to the components or plug the UPSs into AC power until you are instructed to do so on page 22.

Installation Guide Chapter 4 Install the system 21

UPS 2

Do not plug UPS 2

into AC power until

instructed on

page 22.

UPS 1

Do not plug UPS 1

into ac power until

instructed on

page 22.

DISPLAY

Connect video to analog HD-15 connector.

CPU

PRINTER

(model might vary)

Do not plug the printer

into a UPS. Plug it directly into an ac

outlet.

SWITCH Port 1 - AP1 Port 2 - AP2 (Ports 3-7 - APs 3-7) Port 8 - CPU

PoE POWER SUPPLY

PoE

SD ANTENNA

AP2

Preliminary wiring connections for the wireless Acuity LT System

AP1

For systems with more than 2 APs add as appropriate:

• Additional APs

•PoEs, power adapters, cords

22 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

To apply power to Acuity LT System components

1. Apply power in this order:

a. Printer

• Insert the toner cartridge and add paper.

• Plug into AC power.

Do not plug the printer into a UPS.

• Turn on the printer power.

b. UPS 1

• Plug the UPS 1 power cord into an AC power outlet.

• Press the UPS 1 power buttons to apply power to the switch, PoEs and APs.

c. If your system includes 4-7 APs, repeat the steps in Step b for the additional UPS.

d. UPS 2, CPU and Acuity LT Central Station display(s)

• Plug the UPS 2 power cord into an AC power outlet.

• Press both UPS 2 power buttons to apply power.

If the CPU does not start up, press the front-panel power button.

• Turn on the Acuity LT Central Station display power.

• For a 28-patient system, also turn on the second display.

2. Verify that LEDs are active on the following devices:

• UPSs

•CPU

•Switch

•PoEs

•APs

Installation Guide Chapter 4 Install the system 23

To check information on the Acuity LT Central Station display

1. Confirm that information appears on the Acuity LT Central Station display.

For a 28-patient system, additionally do the following:

a. Confirm that information is displayed on the second display.

b. Using the Acuity LT System trackball, confirm that the displayed arrow moves left

and right between the displays.

If it does not, reverse the cable connections at the rear of the displays, and test again.

2. Within two or three minutes, confirm that the Acuity LT Central Station display shows a window similar to the following:

If a CHECK NETWORK message is displayed, check all of the power and data cable connections to the CPU, switch, APs and PoEs. If the message is still displayed, refer to “Troubleshooting and support” on page 45.

For a 28-patient system, additionally confirm that the map in the lower left corner shows room icons for 28 monitors.

3. Apply power to a Micropaq, Propaq LTR or wireless Propaq CS patient monitor.

Verify that no patient cables are connected to the monitor, such as ECG or SpO cables.

24 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

4. Confirm that within one minute, the Acuity LT Central Station display shows a Waveform Window that corresponds with the patient monitor, similar to the following:

5. If the patient monitor does not appear to connect to the Acuity LT System, take the following steps:

a. Check the network name (ESSID) listed on the left side of the CPU, near the

manufacturer’s serial number. The network name is similar to “com8.protoco.l”

b. Check the network name assigned to the patient monitor (see “Check or change

a patient monitor network name (ESSID)” on page 53). If the monitor network

name is not the same as the name shown on the CPU label, follow the procedure in Appendix B to reassign the appropriate network name. Confirm that within one minute, the Acuity LT display shows a Waveform Window that corresponds with the patient monitor.

c. If the patient monitor still does not connect to the Acuity LT System, and the

monitor is a Propaq LTR, check to see if the monitor displays the wireless connection icon (either or ).

If it does not, the monitor might be configured so that the wireless connection is disabled (the radio card is off). If so, the monitor must be reconfigured to enable it. Refer to the Propaq LTR Directions For Use for more information.

Installation Guide Chapter 4 Install the system 25

To simulate patient monitoring

1. For one of the following patient monitors, take these steps to select the patient simulation mode:

• Micropaq monitor:

a. Press to highlight SERVICE MENU, and then press to select it.

b. Press to highlight DEMO MENU, and then press .

c. Press to highlight DEMO 1, and then press to start DEMO 1 mode.

• Propaq LTR monitor:

a. If the monitor has data stored for a previous patient, delete the patient data and

restart the monitor.

b. Highlight Demo, and then press .

• Wireless Propaq CS monitor:

a. Press SETUP, WAVE SELECT, and then INSERVICE.

b. Confirm that within one minute, the Acuity LT display shows simulated patient

data in the Waveform Window.

2. For one of the following patient monitors, take these steps to select the alternate patient simulation mode:

• Micropaq monitor:

Press to highlight TOGGLE DEMO MODE, and then press .

• Propaq LTR monitor:

a. Highlight SpO2, and then press .

b. Highlight Setup, and then press .

c. Highlight Timings, and then scroll to highlight Demo Mode.

d. Highlight High, and then press to return to the main display.

• Wireless Propaq CS monitor:

a. Press SETUP, WAVE S E LECT, and then INSERVICE.

b. Confirm that within a few seconds, the Acuity LT Central Station display emits an

audible alarm and shows patient windows with a red alarm borders.

3. Use the left button on the Acuity LT System mouse/trackball to click anywhere in the numerics area of the Waveform Window.

The alarm tone is suspended for 90 seconds.

Suspend area

26 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

4. For one of the following patient monitors, take these steps to set the monitor to the alternate patient simulation mode:

• Micropaq monitor:

Press to highlight TOGGLE DEMO MODE, and then press

• Propaq LTR monitor:

a. Highlight SpO2, and then press .

b. Highlight Setup, and then press .

c. Highlight Timings, and then scroll to highlight Demo Mode.

d. Highlight Low, and then press to return to the main display.

• Wireless Propaq CS monitor:

a. Press SETUP, WAVE SELECT, and then INSERVICE.

b. Confirm that the Waveform Window border changes from red (patient alarm

state) to yellow (equipment alert state).

5. Click in the waveform area of the Waveform Window to print data from this simulated patient.

Print area

Confirm that within two minutes, the printer prints the data. If it does not, verify that the printer is online and properly connected.

Installation Guide Chapter 4 Install the system 27

To simulate a shutdown

1. Unplug both UPS units from AC power.

The UPS units might emit alarm tones.

2. Confirm that the system continues to operate without disruption, and then plug in both UPS units to AC power.

3. Apply power to each of the wireless monitors that will be used with the Acuity LT System (a maximum of 12 active monitors at one time, or 28 active monitors for a 28patient system).

Confirm that within one minute, the Acuity LT Central Station display shows a waveform window for each patient monitor.

4. Take the following steps to disconnect all of the monitors from the Acuity LT System:

• Micropaq monitor:

a. Press to highlight ACUITY, and then press .

b. Press to highlight END TELE, and then press .

c. When the SAFE TO REMOVE BATTERY message is displayed, remove the

battery.

• Propaq LTR monitor:

a. Press .

b. Highlight Delete & Shutdown, and then press .

• Wireless Propaq CS monitor:

a. From the Main Menu, press SETUP, ACUITY, and then END TELE.

b. Turn off power.

5. Shut down the Acuity LT System as follows:

a. On the Acuity LT Central Station screen, move the pointer into the gray area in the

upper right hand corner of the screen.

b. Hold down the

c. When the System Menu appears in the upper right corner, click

Shutdown Workstation, and then click Confirm.

d. After the system shuts down, turn off system power to all Acuity LT System

components and disassemble the system.

If any part of the system is not operating properly, refer to “Troubleshooting and

support” on page 45.

◆ key on the keyboard, and press the right mouse/trackball key.

28 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Install the Acuity LT System equipment

If the wiring has been installed in your facility and you have performed a preliminary system operation check, you can proceed to install the Acuity LT System equipment.

To install the Acuity LT System equipment

1. Place all of the equipment in the locations identified during the planning process.

Do not permanently mount the AP mounting brackets or SD antennas. You will install them after you have tested the network coverage during the final system check (see

“Perform final installation of APs” on page 41).

2. Temporarily hang the access points (APs) in the hallway in intended locations.

For network testing, temporarily position the SD antennas horizontally at the ceiling, and vertically position the whip antenna on the AP.

3. Refer to one of the following illustrations to connect all of the Acuity LT System components with appropriate data cables and power connections:

• 12-patient system: see page 29.

• 24-patient system: see page 30.

The photograph on page 17 and the table on page 18 provide further detail.

Caution Do not apply power to any components or plug the UPSs into AC power until you perform a final system check as described on page 31.

4. Connect the ground cables (not illustrated).

a. Connect a ground cable from the switch to the building ground.

b. Connect a ground cable(s) from the UPS(s) to building the ground.

5. Connect the external audio cable to the CPU and the Acuity LT Central Station display:

a. On the CPU, connect the cable to the headphone jack: .

Caution Do not connect the external audio cable to the CPU line-out jack .

b. On the Acuity LT Central Station display, connect the cable to the Input 1 Audio

jack.

For 28-monitor system, connect the cable to the left display, which shows the Acuity System map.

Installation Guide Chapter 4 Install the system 29

UPS 2

Do not plug UPS 2 into AC

power until final system

check

To analog

phone line

UPS 1

Do not plug UPS 1 into

AC power until final

system check

MODEM

DISPLAY

Connect video to analog HD-15 connector.

CPU

PRINTER

(model might vary)

Do not plug the printer into

a UPS. Plug it directly into

an AC outlet.

Nurses station

SWITCH

Port 1 - AP1 Port 2 - AP2 Ports 3-7 (AP3-AP7) Port 8 - CPU

For systems with 4-7 APs, add as appropriate:

•UPS

• PoEs, power adapters, cords and cables.

PoE POWER SUPPLY

PoE

AP2

Final wiring connections for the wireless Acuity LT System (12 patients)

SD ANTENNA

AP1

Equipment closet

(Closet is optional)

Hallway

30 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

UPS 2

(750 VA)

Do not plug UPS 2 into

AC power until final

system check

To analog

phone

line

UPS 1

(500 VA)

Do not plug

UPS 1 into ac

power until final

system check

MODEM

RIGHT-SIDE DISPLAY

Connect video to digital

DVI connector.

CPU

LEFT-SIDE DISPLAY

Connect video to analog

HD-15 connector.

SWITCH

Port 1 - AP1 Port 2 - AP2 Ports 3-7 (AP3-AP7) Port 8 - CPU

PRINTER

(model might vary)

Do not plug the printer into a UPS. Plug it directly into

an ac outlet.

Nurses station

For systems with 4-7 APs, add as appropriate:

• UPS (500 VA)

•PoEs, power adapters, cords and cables.

PoE POWER SUPPLY

PoE

AP2

Final wiring connections for the wireless Acuity LT System (28 patients)

AP1

SD ANTENNA

Equipment closet

(closet is optional)

Hallway

Installation Guide Chapter 4 Install the system 31

Perform a final system operation check

Perform all of the steps in these sections, to make sure that the wireless Acuity LT System is operating properly.

• Final system components check

• Received signal strength indication (RSSI) check

This system check may require two to three hours to complete, depending on your facility.

After the final system operation check, APs can be installed, as described in “Perform final

installation of APs” on page 41.

If any part of the system is not working, refer to “Troubleshooting and support” on page 45.

Final system components check

For this check, use one of the following patient monitors:

• Micropaq monitor

• Propaq LTR monitor

• Wireless Propaq CS monitor

To perform a final system components check

Table 5. Final system check for wireless Acuity LT System

Step Activity Pass/fail

1. Make sure that all power is off to Acuity LT System components, including all patient monitors.

Apply power as follows: a. Printer: Make sure that the printer is online and has paper. b. UPS 1 (In equipment room) c. Additional UPS (if 4-7 APs) d. UPS 2 (at nurses station)

CPU should start up when UPS 2 power is applied. If it does not, press CPU front panel power button.

e. Acuity LT Central Station display(s)

Confirm that activity begins on the display screen(s).

2. Confirm that the following device LEDs are active.

• Both UPSs

•CPU

•switch

•PoEs

•APs

(circle one)

Pass

Fail

Pass

Fail

Comments

3. Inspect the APs and confirm that within 2-3 minutes of receiving power the green Link LED (3rd LED from left on front of the AP) is continuously on.

Pass

Fail

32 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Table 5. Final system check for wireless Acuity LT System (continued)

Step Activity Pass/fail

(circle one)

4. Confirm that the Acuity LT Central Station display shows a window similar to the following, and that a CHECK NETWORK message is not displayed.

4a. For 28-patient systems only:

a. Confirm that both Acuity LT Central Station displays present

information.

b. Confirm that the map in the lower left corner of the screen

shown in Step 4 is on the left display. If the map is on the right side display, go the rear of both

displays and switch the display cable connections between them. Confirm that the map is now on the left display.

c. Confirm that you can use the trackball to move the arrow left

and right between the displays.

d. Confirm that the map shows 28 icons (not 12).

Pass

Fail

Pass

Fail

Comments

5. a. Apply power to one of the following patient monitors, and set

it in Demo or Inservice mode:

Micropaq monitor:

• Press to highlight SERVICE MENU, and then press

•Press to highlight DEMO MENU, and then press .

•Press

DEMO 1 Mode.

Propaq LTR monitor:

• Highlight Demo and press

Wireless Propaq CS monitor:

•Press SETUP, WAVE SELECT, INSERVICE.

a. Place the patient monitor within 10 feet of an AP, and then

confirm that within one minute, the Acuity LT Central Station display shows simulated patient data from the monitor.

to highlight DEMO 1, then press to start

Pass

Fail

Installation Guide Chapter 4 Install the system 33

Table 5. Final system check for wireless Acuity LT System (continued)

Step Activity Pass/fail

(circle one)

Print area

a. At the Acuity LT Central Station display, click in the waveform

area of the Waveform Window.

b. Confirm that within two minutes, the printer prints simulated

patient data.

a. In the Waveform Window, click the status icon. b. Confirm that an ID Not Confirmed message is shown in the

yellow border of the Virtual Monitor.

Pass

Fail

Pass

Fail

Comments

34 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Table 5. Final system check for wireless Acuity LT System (continued)

Step Activity Pass/fail

(circle one)

8. a. In the blue Patient Identification window, click Close. b. In the Virtual Monitor, click Setup, and then Alarms to

display the Alarms Setup window:

c. Click and hold down the slider for the HR/PR lower alarm

limit, and move it to the right to 90 or greater.

d. Confirm that within a few seconds, the following occurs:

• The “patient’s” windows show red HR patient alarm borders.

• The Acuity LT Central Station emits an audible alarm.

9. a. Confirm that you can hear the alarm from the Acuity LT

Central Station display speakers.

b. Confirm that the speaker volume buttons on the display allow

you to increase and decrease the volume. Set the volume to an appropriate level.

Note: this adjusts only the volume of the display speakers; it does not affect the CPU speaker volume, which is controlled by the Acuity LT System software.

Pass

Fail

Pass

Fail

Comments

10. a. In the red-bordered Alarms Setup window, move the HR/PR

lower alarm limit slider back down to below 80.

b. Confirm that the red borders are removed and the audible

alarm stops.

11. a. Place the patient monitor within 10 feet of AP1. b. At the switch, disconnect the data cables to all APs except

the following:

• Leave the AP1 data cable connected to switch port 1.

• Leave the CPU data cable connected to switch port 8. c. Confirm that within three minutes, the Acuity LT Central

Station display shows a CHECK NETWORK message and the patient windows show simulated patient data.

12. a. At the switch, reconnect the data cables to all APs. b. Confirm that within 2 minutes, the CHECK NETWORK

message is no longer displayed.

13. a. Repeat Steps 11 and 12 for every AP.

Be sure to place the monitor within 10 feet of the AP that is connected.

•AP2

• APs 3-7 (if included)

Pass

Fail

Pass

Fail

Pass

Fail

Pass/Fail Pass/Fail

Installation Guide Chapter 4 Install the system 35

Table 5. Final system check for wireless Acuity LT System (continued)

Step Activity Pass/fail

(circle one)

14. a. Unplug UPS 1 (in the equipment closet) from AC power b. Confirm that the Acuity LT Central Station display shows

patient data with no yellow alert messages. The UPS might emit an audible alarm.

c. Plug UPS 1 into AC power.

14a. For systems with 4-7 APs only:

a. Unplug the additional UPS (in the equipment closet) from AC

power

b. Confirm that the Acuity LT Central Station display shows

patient data with no yellow alert messages. The UPS might emit an audible alarm.

c. Plug in the UPS to AC power.

15. a. Unplug UPS 2 (at the nurses station) from AC power b. Confirm that the Acuity LT Central Station display shows

patient data with no yellow alert messages. The UPS might emit an audible alarm.

c. Plug in UPS 2 to AC power.

16. a. To check the modem, call Welch Allyn Technical Support

(1-800-289-2501 or +1 503-530-7500).

b. Provide the telephone number of the modem, and ask the

technician to check the modem operation.

17. Measure the RSSI for your facility as described on “Received

signal strength indication (RSSI) check” on page 36 and complete

the “Your facility’s RSSI measurement chart” on page 39. Confirm that the RSSI for all locations is 50 or less.

Pass

Fail

Pass

Fail

Pass

Fail

Pass

Fail

Pass

Fail

Comments

This step may require 1-2 hours to complete, depending on your facility.

Test performed by ______________________________________________________ Date _____________

Facility _____________________________________________________________________________________

36 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Received signal strength indication (RSSI) check

This procedure checks the effectiveness of network coverage for the wireless Acuity LT System as it is currently installed in your facility.

Network radio signal strength for a patient monitor is measured with a parameter called received signal strength indication (RSSI). A monitor’s RSSI is displayed in its Network Status service screen.

An RSSI value depends on these two things:

• The distance between the monitor and the AP to which it is connected

• Any obstructions between the monitor and the AP

In general, as a monitor is moved away from the AP to which it is connected, the RSSI value increases (indicating less signal strength).

For effective network communications with minimal dropout and disruption, the RSSI for any wireless monitor should be 50 or less. An RSSI varies slightly between wireless monitors, depending on the characteristics of the antenna and radio circuitry in the monitors.

In a properly working system, a patient monitor maintains connection with the wireless Acuity LT System as the monitor moves throughout the facility. Monitors should transition from a more distant AP to a closer AP without any detectable change in the patient data display on the Acuity LT Central Station display.

To read a patient monitor’s RSSI value

1. Make sure that the wireless Acuity LT System is operating properly, as defined by the final system check through Step 17 on page 35.

2. Make sure that all APs are properly positioned in their desired locations.

For best overall signal reception, verify that the SD antenna is oriented horizontally at the ceiling, and the whip antenna is oriented vertically on the AP.

3. Make sure a single wireless monitor is powered on and connected to the Acuity LT System.

Installation Guide Chapter 4 Install the system 37

4. Access the monitor’s Network Status screen to examine the monitor’s RSSI.

For a Micropaq monitor

a. From the monitoring screen, press to access the Main Menu.

b. Press to highlight SYSTEM INFORMATION, and then press to display

the System Information menu.

c. Press twice to highlight NETWORK STATUS, and then press .

This network name must match the network name on the left panel of the Acuity LT System CPU.

d. Read the RSSI value listed in the screen.

The value is updated every 10 seconds.

For a Propaq LTR monitor

a. From the main display, highlight SpO2 and press .

b. Highlight Setup and press .

c. Highlight Service and press .

d. Highlight Radio, and then highlight Show Info and press .

e. Read the RSSI value shown on the screen.

The Net name must match the network name on the left panel of the Acuity LT System CPU.

For a wireless Propaq CS monitor

a. From the Main Menu press SETUP, MORE, MORE, SERVICE, YES, MORE,

MORE, and RADIO STATUS.

NETWORK STATUS

FIRMWARE VER: S24 COUNTRY: NET NAME: MONITOR MAC: MONITOR IP: AP MAC: ACUITY IP: PSICP RSSI: ACUITY CONNECTED

BATTERY: 9.2 VOLTS

V4.57 991001 INTERNATIONAL MODE 0 com8.protocol 12:34:56:78:90:12

192.168.210.201:7711 12:34:56:78:90:12

192.168.210.101:32790 RX: 40 TX: 158 38

This network name must match the network name on the left panel of the CPU.

NETWORK MONITOR

b. Read the RSSI value shown on the screen.

38 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

To measure RSSI values throughout the Acuity LT System

1. Refer to this example of a completed RSSI measurement chart.

Sample RSSI measurement chart

Room number/ location

Stairway 45 Hall N. 38 121 42 44 119 39 41 117 38 38 122 43 44 120 42 42 118 37 38 E1 37 E2 37 E3 38 E4 38 115 39 39 113 39 41 111 42 42 116 39 39 114 39 39 112 42 42 Hall S. 38 Hall West 43 Hall East 42

Room Bathroom

RSSI

Stairway

121 Hall 122

119 120

117 118

E1 E3

E2 E4

115 116

113 114

10 feet

111 112

Hall West Hall East

60 ft.

Installation Guide Chapter 4 Install the system 39

2. Use this form to make a sketch of your facility’s layout.

Your facility’s RSSI measurement chart

Room number/

location

RSSI

Room Bathroom

10 ft.

60 ft.

40 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

3. In every patient room, every patient bathroom and each area where you require network coverage (including all areas that might have considerable obstruction, such as behind three or more walls or behind stairwells, take the following steps:

a. Wait at least 10 seconds to make sure that the RSSI is updated, and then note the

RSSI number. The RSSI updates every 10 seconds.

b. Check the RSSI in all four corners of each location.

c. On Your facility’s RSSI measurement chart form, record the highest RSSI.

4. If you find that the RSSI is > 50, take the following steps:

a. Consider possible obstructions, as described on page 8.

b. Reposition the nearest AP and SD antenna.

Place APs close enough together to allow overlapping coverage and prevent gaps in network coverage. The APs should at least 6 feet apart, but no more than 40 feet apart.

Position the SD antenna horizontally at the ceiling, and position the whip antenna vertically on the AP. The AP data cable should have at least 15 feet of extra length to allow you to reposition it; it might be coiled above the ceiling.

c. Repeat the RSSI testing until you are satisfied that you have identified the best

location for each AP.

If you still have areas in your facility where the RSSI is too high, your facility might have obstructions that necessitate additional APs for your wireless Acuity LT System (up to a maximum total of 7 APs). To purchase additional APs, see “To

order additional APs” on page 59.

d. Attach the “Your facility’s RSSI measurement” chart to the “Final system check

for the Acuity LT System” table.

Your final system operation check is complete!

Installation Guide Chapter 4 Install the system 41

Perform final installation of APs

If the RSSI testing was satisfactory for your facility, qualified personnel can complete the final installation of the APs. APs are typically mounted in one of three places:

• On the wall

• On the ceiling

• For suspended ceilings, just above the ceiling.

WARNING Do not install an access point or access point antenna closer than 2 feet from any location where people frequent. Installation closer than 2 feet could result in exposure to levels of radio frequency energy that are higher than recommended by the Federal Communications Commission (FCC). For example, installation on an 8-foot ceiling is acceptable, but on top of the desk at the nurses station is not.

42 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

To mount the AP bracket

1. Mount the AP bracket in the desired location:

7”

• For wall mounting, use screws to mount the bracket near the ceiling, as shown.

Allow at least seven inches between the top of the bracket and the ceiling, to allow space for the whip antenna to be oriented vertically on the AP.

Rail

Bracket

• For ceiling mounting, use screws if there is an appropriate ceiling surface for

mounting the bracket.

For suspended ceilings, take the following steps:

Push ceiling tiles back to provide working space.

Place the mounting plate diagonally so that the open ends of the clips are aligned on the rail as shown.

Gently rotate the bracket clockwise so the clips slide over the rail.

Verify that both clips are securely in place.

• For mounting above suspended ceiling tiles, push back the tiles, locate a suitable

place, and mount the bracket.

Installation Guide Chapter 4 Install the system 43

To mount the AP and antennas

• Insert the AP into the mounting bracket:

Align the keyhole slots at the back.

Slide the AP into the bracket.

Verify that the AP is attached securely.

To mount the antennas

For best performance and network coverage, follow these instructions precisely:

Left side connector

SD antenna

Data cable Power cable

PoE

Data cable to switch

Right side connector

Whip antenna

1. Mount the SD antenna (the primary antenna) horizontally on the ceiling, on the left side of the AP. The left side connector is marked with a “I” on the back of the AP.

For suspended ceilings, take the following steps:

• Cut out a notch in the corner of a tile to allow the SD cable to recess into the

ceiling.

• Slide the SD antenna clips over the rails to hold the antenna in place.

2. Route the SD antenna cable to the AP, and connect the cable to the AP’s left side connector.

3. Connect the whip antenna to the AP’s right side connector, and orient the antenna in a vertical position.

The right side connector is marked with a “II” on the back of the AP.

4. Connect the data cable and power cable from the PoE to the AP, as shown.

5. Use the clip on the back of the PoE to secure it to one of the cables.

6. Verify that the data cable is connected to the switch.

44 Chapter 4 Install the system Welch Allyn Wireless Acuity LT Central Monitoring System

Troubleshooting and support

Troubleshooting

If your wireless Acuity LT System does not work properly, use this table as a guide to help identify and solve problems

Table 6. Wireless Acuity LT System troubleshooting

Symptom Possible cause and suggested response

A CHECK NETWORK message appears on the Acuity LT Central Station screen.

There is no display on the Acuity LT Central Station screen.

There is no sound from the Acuity LT Central Station display speakers.

The Acuity LT System did not get the expected response from one or more APs.

1. Confirm that all data cables are properly connected between the CPU, the switch and the APs.

2. Confirm that the PoEs are properly connected and are powering the APs.

3. At each AP, confirm that the green LED is on continuously (3rd from left on the AP front panel).

4. Check the green LEDs above the data cable ports at the switch:

-Data cable to CPU: Left link LED should be on continuously.

-Data cable to APs: Right link LED should be on continuously. If an LED is not on continuously, check for a faulty data cable or problem with the CPU or APs.

5. Shut down and restart the entire system (see page 27).

1. Check power to the UPS, CPU, and Acuity LT Central Station display(s); make sure all power switches are turned on.

2. Check the video cable between the CPU and the display(s).

3. Shut down and restart entire Acuity LT System (see page 27 and page 22).

1. Check the connections of the external audio cable between the CPU and the Acuity LT Central Station display:

At the CPU, connect to the headphone jack . At the display, connect to the Input 1 audio jack.

2. Make sure that the speaker volume control on the display is turned up.

46 Chapter 5 Troubleshooting and support Welch Allyn Wireless Acuity LT Central Monitoring System

Table 6. Wireless Acuity LT System troubleshooting

Symptom Possible cause and suggested response

Wireless monitors drop out in particular locations in the facility.

The AP might not be working:

• At each AP, confirm that the green link LED is on continuously (3rd from left on AP front panel)

If not, check all data cable and power connections for that PoE and AP.

Wireless monitor(s) might not be configured with the network name for that Acuity LT System.

1. Look at the CPU left side panel (near front) and find the label indicating the network name for the Acuity LT System (it is similar to “com8.protocol”).

2. Check the patient monitor network name, and change it if necessary (see “Check or change a

patient monitor network name (ESSID)” on page 53).

3. Retest network coverage with the patient monitor(s).

Network coverage in that location might be blocked by particular obstructions or beyond range of the nearest AP.

• Perform the RSSI check for that location in your facility (see “Received signal strength

indication (RSSI) check” on page 36). If RSSI is over 50, consider adding more APs (up to a

maximum total of 7 APs).

Installation Guide Chapter 5 Troubleshooting and support 47

Technical support

For technical assistance, contact Welch Allyn Technical Support.

Phone (within the U.S.A.): 1-800-289-2501

Phone (worldwide): +1 503-530-7500, ask for Technical Service

Fax: +1 503-526-4970

e-mail: solutions@monitoring.welchallyn.com

Internet http://www.monitoring.welchallyn.com/service

48 Chapter 5 Troubleshooting and support Welch Allyn Wireless Acuity LT Central Monitoring System

Specifications

Table 7. Patient monitor/Wireless Acuity LT Central Monitoring System System compatibility

Patient monitor Acuity System

Micropaq monitor, 1.3 software or higher

Propaq CS monitor, 3.42.01 software or higher

Propaq LTR monitor 1.00.01 software or higher

Table 8. Wireless Acuity LT System network specifications

Characteristic Specification

Network type 2.4 GHz wireless local area network (WLAN) and 10/100 base-T ethernet network

Radio frequency Refer to patient monitor’s Directions For Use

Modulation Frequency hopping spread spectrum (FHSS)

IEEE 802.11 compliant Yes

Wireless patient monitors

Any combination of Welch Allyn Propaq CS, Propaq LTR or Micropaq patient

monitors

Wireless Acuity LT Central Monitoring System System software version 7.0x

• 12-patient system

• 28-patient system

Access points

• 12-patient system

• 28-patient system

Range 60 feet maximum distance between patient monitor and access point for effective

a. Assuming network loading is shared by multiple access points.

12 maximum monitors at one time 28 maximum monitors at one time

Standard installation includes 2 access points. Standard installation includes 4 access points.

If required to provide adequate network coverage, additional access points are available for purchase for both the 12 and 28-patient systems (up to maximum total of 7 access points).

For optimum wireless network communication:

• Install access points between 6 and 40 feet apart (for systems with more than 2 access points, each access point must be within 40 feet of another access point).

wireless communication (assuming standard obstructions).

• Actual range of communication for each facility can only be determined after the final system operation check, as described in “Perform a final system

operation check” on page 31.

• All obstructions reduce effective communication. Refer to “Carefully plan the

location of access points” on page 8 for a description of obstructions.

50 Appendix A Specifications Welch Allyn Wireless Acuity LT Central Monitoring System

The following table lists all of the wireless Acuity LT System components. All components have been validated and approved for use within the wireless Acuity LT System.

Except for the printer and UPS, all replacement devices must be ordered from Welch Allyn to ensure that they meet system performance requirements and are properly configured as required.

Table 9. Wireless Acuity LT System equipment

Equipment Typical dimensions and power

requirements

Display

• 19 inch viewable display

• Data cable connects to CPU

• Second Display (and data cable) for 28patient system

• Audio cable connects to CPU to enable Display speakers

Central Processing Unit (CPU) Sun Microsystems SunBlade 150

• Supports required access points and 12-28 wireless patient monitors

• Includes mouse and country-specific keyboard (trackball with 28-patient system)

8 Port Switch Milan

• Supports up to 7 access points

Access points (APs) Symbol Technologies AP-3020/AP-3021

• Each AP is uniquely preconfigured and labeled. APs are factory-configured by

Welch Allyn and are not interchangeable.

• 2 antennas for each (SD and whip type)

Width: 17.7 in. (45.0 cm) Height: 16.7 in. (42.4 cm) Depth: 9.5 in. (24.2 cm) Weight: 18.1 lb. (8.3 kg) Power: 100 to 120/220 to 240 VAC

Width: 18.0 in. (45.7 cm) Height: 4.6 in. (11.8 cm) Depth: 17.6 in. (44.6 cm) Weight: 26.9 lb. (12.2 kg) Power: 100 to 120/220 to 240 VAC

Width: 6.3 in. (16 cm) Height: 1 in. (2.8 cm) Depth: 4 in. (10 cm) Weight: 1 lb. (0.45 kg) Power: 100-240 VAC

Width: 7.8 in. (19.7 cm) Height: 1.3 in. (3.2 cm) Depth: 5.5 in. (15.0 cm) Weight: 1.0 lb. (0.46 kg) Power: DC supplied by

auto sense

power-over-ethernet

devices.

4 power-over-ethernet (PoE) devices

• 2 PoEs for each access point

Parallel printer (model may vary) See printer manual for

2 uninterruptible power supplies (UPS) Model may vary outside of the U.S. Third UPS required for 4-7 APs.

• Each provides temporary power for up to 4 devices

• Typical run time 5 min. at max. load

• 28-patient system requires larger capacity UPS (minimum 750 VA) for the nurses station location to support the displays

Modem US Robotics Model may vary outside of the U.S.

• Connects to CPU to enable access by remote technical support.

a. Contact Welch Allyn for current part numbers and model numbers.

Power: DC (AC/DC adapter plugs into UPS)

specifications

Power: 100 to 120/220 to 240 VAC

Power: DC (AC/DC adapter plugs into UPS)

Installation Guide Appendix A Specifications 51

Table 10. Wireless monitors for use within wireless Acuity LT System

Monitor Description

Micropaq wearable patient monitor

• 5 lead ECG and optional motion-tolerant SpO

• Heart rate, SpO2 numerics, pulse bar

• Communicates data through APs to Acuity System

• Operates stand-alone with continuous monitoring and alarms when outside range of APs

• Auto-reconnects when returned within range of APs

• Adult and pediatric mode

Size: 7.3 in. x 3.5 x 1.5 (18.5 cm x 8.9 x 3.7) Weight: 17.3 oz. (0.5 kg) with SpO2 Power: Rechargeable lithium ion battery

• Heart rate/pulse rate

• 5 or 3 lead ECG and SpO

• Motion-tolerant noninvasive blood pressure

• Impedance respiration

• Charging cradle with optional communication and PC printer connection

• Communicates data through APs to Acuity System

• Operates stand-alone with continuous monitoring and alarms when outside range of APs

• Auto-reconnects when returned within range of APs

• Adult, pediatric, and neonatal mode

Propaq LTR portable patient monitor

Wireless Propaq CS portable patient monitor

With all options:

Size: 7.4 x 5.2 x 2.1 in (18.8 x 13.2 x 5.3 cm) Weight: 2 lbs (0.9 kg) Power: Rechargeable lithium ion internal battery

• Heart rate/pulse rate

• 5 or 3 lead ECG and motion-tolerant SpO

• Motion-tolerant noninvasive blood pressure

• Temperature (2 channels)

• Invasive blood pressure (up to 2 channels)

• Capnography (mainstream and/or sidestream)

• Impedance respiration/apnea

• Thermal strip printer

• Communicates data through APs to Acuity System

• Operates stand-alone with continuous monitoring and alarms when outside range of APs

• Auto-reconnects when returned within range of APs

• Adult, pediatric, and neonatal mode

With all options:

Size: 11.4 x 9.6 x 7.7 in (28.8 x 24.4 x 19.7 cm) Weight: 14.4 lbs (6.5 kg) Power: Rechargeable sealed lead acid internal battery

52 Appendix A Specifications Welch Allyn Wireless Acuity LT Central Monitoring System

Check or change a patient monitor

network name (ESSID)

In order for a wireless monitor to connect to the wireless Acuity LT System network, the monitor must be set to the correct network name (ESSID) for the system. The system network name is shown on a label on the left side panel of the Acuity LT Central Station CPU.

This section describes how to check and change the network name for each type of wireless patient monitor that can be connected to the Acuity LT System network.

Micropaq monitor network name (ESSID)

Check the Micropaq monitor network name

1. Press to highlight SYSTEM INFORMATION, and then press to display the

System Information menu.

2. Press twice to highlight NETWORK STATUS, and then press .

Network name

3. Press to exit.

Change the Micropaq monitor network name

Note

1. Press repeatedly until SERVICE MENU is highlighted.

2. Press to display the Service Menu screen.

Changing the patient monitor network name causes the monitor to restart and seek to connect with any nearby wireless Acuity System network corresponding to the new name. Do not attempt to change the network name unless you are a qualified biomedical service engineer or technician.

54 Appendix B Check or change a patient monitor network name (ESSID) Welch Allyn Wireless Acuity LT Central Monitoring System

3. Press and hold down and , and then press to display the following screen:

4. Press to highlight YES, and then press to display the following screen:

The Micropaq monitor displays one of the following pre-set names:

com.protocol demo.protocol com1.protocol com2.protocol

. . ....

com7.protocol com8.protocol

• To change the network name, press or to highlight the desired network name, and then press . The Micropaq monitor turns off, and then turns on and seeks to connect to the Acuity LT network with the new network name.

If you are not able to change the network name, contact Welch Allyn Technical Support for assistance (see “Technical support” on page 47).

• To exit without changing the network name, make sure EXIT is highlighted and press .

WARNING When setting the patient monitor network name, make sure that it matches the network name labeled on the CPU for your wireless Acuity LT System. If a different network name is set, the monitor could connect to a different nearby wireless Acuity System. This would result in confusion about patient monitoring and the location of patient data.

Installation Guide Appendix B Wireless Acuity LT Central Monitoring System 55

Propaq LTR monitor network name (ESSID)

Check the Propaq LTR monitor network name

1. From the main display, highlight SpO2 and press .

2. Highlight Setup and press to access the Setup menu.

3. Highlight Service and press to access the Service menu.

4. Highlight Radio, then highlight Show Info and press .

The monitor displays the current Net name. The Net name must match the Network Name on the CPU left side panel label to connect to the wireless Acuity LT System.

5. To exit, highlight Exit and press .

Change the Propaq LTR monitor network name

Note

1. From the main display, highlight SpO2 and press .

2. Highlight Setup and press to access the Setup menu.

3. Highlight Service and press to access the Service menu.

4. Highlight Radio, then highlight Net Name and press .

5. To change the Net Name, scroll to highlight the desired Net Name, then

Changing the patient monitor network name causes the monitor to seek to connect with any nearby wireless Acuity System network corresponding to the new name. Do not attempt to change the network name unless you are a qualified biomedical service engineer or technician.

The monitor displays the list of possible Net Names (scroll to see the entire list):

com.protocol demo.protocol com1.protocol com2.protocol

.. . . .

com18.protocol

The current Net Name is highlighted.

simultaneously press and (the left and right arrow buttons). The monitor is now set to the new Net Name.

6. Press to exit the Net Name menu.

To recheck the Net Name, highlight Show Info and press .

56 Appendix B Check or change a patient monitor network name (ESSID) Welch Allyn Wireless Acuity LT Central Monitoring System

Wireless Propaq CS monitor network name (ESSID)

Check the wireless Propaq CS monitor network name

1. From the Main Menu, press SETUP, MORE, MORE, SERVICE, YES, MORE, MORE, RADIO STATUS.

NETWORK STATUS

FIRMWARE VER: S24 COUNTRY: NET NAME: MONITOR MAC: MONITOR IP: AP MAC: ACUITY IP: PSICP RSSI: ACUITY CONNECTED

NETWORK MONITOR

BATTERY: 9.2 VOLTS

V4.57 991001 INTERNATIONAL MODE 0 com8.protocol 12:34:56:78:90:12

192.168.210.201:7711 12:34:56:78:90:12

192.168.210.101:32790 RX: 40 TX: 158 38

Change the wireless Propaq CS monitor network name

Note

1. From the Main Menu press SETUP, MORE, MORE, SERVICE, YES, MORE, MORE,

RADIO STATUS, CHANGE NET NAME to access the Change Net Name screen.

Network Name

The current network name is highlighted. (To exit without changing the network name, press PREVIOUS MENU or Home.)

CHANGE NET NAME

COM.PROTOCOL

DEMO.PROTOCOL COM1.PROTOCOL COM2.PROTOCOL COM3.PROTOCOL COM4.PROTOCOL COM5.PROTOCOL COM6.PROTOCOL COM7.PROTOCOL COM8.PROTOCOL

NEXT PREVIOUS

2. To change the network name, press NEXT to scroll down and highlight the desired network name, and then press SELECT.

The monitor displays a confirmation screen asking you to confirm that you want to change the network name.

SELECT

Installation Guide Appendix B Wireless Acuity LT Central Monitoring System 57

• If you press YES, the monitor turns off and then turns on and seeks to connect to

the Acuity LT System with the new network name.

• If you press NO, the monitor displays the Change Net Name screen again.

WARNING Make sure that the network name of any Propaq CS monitor with hardwired and wireless capability does not match the network name of any nearby wireless Acuity System. When a Propaq CS monitor is unplugged from a hardwired Acuity System, it attempts to make a wireless connection with any nearby wireless Acuity System.

58 Appendix B Check or change a patient monitor network name (ESSID) Welch Allyn Wireless Acuity LT Central Monitoring System

Install additional APs

If the final system check (described in “Perform a final system operation check” on page 31) indicates that there are areas of your facility where the network coverage is not adequate (RSSI is 50 or above), consider installing additional access points (APs). You can install up to a maximum total of seven APs.

Inadequate network coverage typically occurs in areas where there are too many obstructions, such as in the following instances:

• Behind elevators

• Behind metal-reinforced walls

• Too many walls between the monitor and the AP

To order additional APs

Contact your Welch Allyn representative:

Toll free USA: 1 800 289 2501

Worldwide: +1 503 530 7500

Note

If your system has four to seven APs, you must add an additional UPS to accommodate the additional PoE power supplies.

60 Appendix C Install additional APs Welch Allyn Wireless Acuity LT Central Monitoring System

To install additional APs

After you receive additional APs, perform these steps to install them:

1. Identify the location (or locations) where you want to place the additional AP (or APs). Refer to “Carefully plan the location of access points” on page 8, and review the information about obstructions and AP placement.

• Each AP must be located within at least 40 feet of another AP, to allow adequate

overlap between AP locations and adequate network coverage as wireless patient monitors move throughout the facility.

• If your facility has additional obstructions (such as wire-mesh or metal reinforced

walls), you might need to locate the APs closer together than 40 feet.

• Before installing permanent wiring for the APs, run temporary data cables from

the switch to the new AP locations, and test the network coverage.

2. Install wiring for the APs using guidelines in “Power requirements” on page 15.

3. Temporarily install the APs as described in “Install the Acuity LT System equipment” on page 28. Make sure all supporting equipment is properly connected and powered (PoEs, PoE power supplies, data cables, power cables and antennas).

You need an additional UPS for the PoE power supplies if your system has four or more APs.

4. Confirm that within two to three minutes of receiving power, the green Link LED (3rd LED from left on the front of the AP) is continuously on.

5. Measure RSSI throughout your facility to check the network coverage. (See

“Received signal strength indication (RSSI) check” on page 36.)

6. If RSSI testing is satisfactory, perform the final installation of the new APs. (See

“Perform final installation of APs” on page 41.)

If RSSI testing is not satisfactory, refer to “Troubleshooting” on page 45.

Welch Allyn Acuity Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Installation Guide

Introduction

About this manual

Safety and compliance information

Related documents

Plan the installation

System overview

Plan equipment location

Install Acuity LT System wiring

Power requirements

Install wiring

Install the system

Unpack and identify Acuity LT System components

Perform a preliminary system operation check

Install the Acuity LT System equipment

Perform a final system operation check

Perform final installation of APs

Troubleshooting and support

Troubleshooting

Technical support

Specifications

Micropaq monitor network name (ESSID)

Propaq LTR monitor network name (ESSID)

Wireless Propaq CS monitor network name (ESSID)

Install additional APs

To order additional APs