Mindray DPM7 User manual

DPM 7 Patient Monitor

Service Manual

Intellectual Property Statement

Mindray DS USA, Inc. (hereinafter called Mindray DS) owns the intellectual property rights

to this product and this manual. This manual may refer to information protected by

copyrights or patents and does not convey any license under the copyright or patent rights of

Mindray DS, nor the rights of others. Mindray DS does not assume any liability arising out of

any infringements of patents or other rights of third parties.

Mindray DS intends to maintain the contents of this manual as confidential information.

Disclosure of the information in this manual in any manner whatsoever without the written

permission of Mindray DS is strictly forbidden. Release, amendment, reproduction,

distribution, rent, adaptation and translation of this manual in any manner whatsoever without

the written permission of Mindray DS is strictly forbidden.

is a trademark or a registered trademark of Shenzhen Mindray

Bio-Medical Electronics Co., Ltd. All third-party trademarks that appear in this manual are

used solely for editorial purposes and are the property of their respective owners.

Contents of this manual are subject to changes without prior notice.

Revision History

This manual has a revision number. This revision number changes whenever the manual is

updated due to software or technical specification change. Contents of this manual are subject

to change without prior notice.

 Revision number: 5.0  Release time: 2012-02

FOR YOUR NOTES

Preface

Manual Purpose

This manual provides detailed information about the assembling, dissembling, testing and

troubleshooting of the equipment to support effective troubleshooting and repair. It is not

intended to be a comprehensive, in-depth explanation of the product architecture or technical

implementation. Observance of the manual is a prerequisite for proper equipment

maintenance and prevents equipment damage and personnel injury.

This manual is based on the maximum configuration; Therefore, some contents may not

apply to your monitor. If you have any question, please contact our Customer Service

Department.

Intended Audience

This manual is for biomedical engineers, authorized technicians or service representatives

responsible for troubleshooting, repairing and maintaining the patient monitors.

III

Abbreviations

Abbreviations used in this manual are:

MPM multi-parameter module

SMR satellite module rack

CMS central monitoring system

PCB printed circuit board

Passwords

A password may be required to access different modes within the monitor. The passwords are

listed below:

 User maintenance: 888888  Factory maintenance: 332888  Demo mode: 2088

Contents

1 Safety ................................................................................................................................. 1-1

1.1 Safety Information ..........................................................................................................1-1

1.1.1 DANGER ........................................................................................................... 1-2

1.1.2 Warnings............................................................................................................. 1-2

1.1.3 Cautions ............................................................................................................. 1-2

1.1.4 Notes .................................................................................................................. 1-3

1.2 Equipment Symbols ........................................................................................................ 1-3

2 Theory of Operation ........................................................................................................ 2-1

2.1 Introduction..................................................................................................................... 2-1

2.2 System Connections ........................................................................................................ 2-2

2.2.1 Mounting the Patient Monitor ............................................................................ 2-2

2.2.2 Connectors for Peripheral Devices..................................................................... 2-3

2.3 Main Unit ........................................................................................................................ 2-4

2.3.1 Input System ...................................................................................................... 2-5

2.3.2 Output System.................................................................................................... 2-6

2.3.3 Processing and Communications System........................................................... 2-7

2.3.4 Power Management System ............................................................................... 2-9

2.3.5 Equipment Interface System ............................................................................ 2-12

2.4 Parameter Module ......................................................................................................... 2-14

2.4.1 Module Infrared Communication Board .......................................................... 2-14

2.4.2 Module Power Board ....................................................................................... 2-14

2.4.3 Parameter Board............................................................................................... 2-14

2.5 Satellite Module Rack ................................................................................................... 2-15

3 Testing and Maintenance................................................................................................. 3-1

3.1 Introduction..................................................................................................................... 3-1

3.1.1 Test Equipment................................................................................................... 3-1

3.1.2 Test Report ......................................................................................................... 3-2

3.1.3 Preventative Maintenance .................................................................................. 3-2

3.1.4 Recommended Frequency .................................................................................. 3-2

3.2 Preventative Maintenance Procedures ............................................................................ 3-4

3.2.1 Visual Inspection................................................................................................ 3-4

3.2.2 NIBP Tests and Calibration ................................................................................ 3-5

3.2.3 Sidestream and Microstream CO

3.2.4 AG Tests ........................................................................................................... 3-10

3.2.5 Preventative maintenance test report................................................................ 3-12

3.3 Power On Test ...............................................................................................................3-14

Module Tests................................................ 3-8

3.4 Module Performance Tests............................................................................................ 3-15

3.4.1 ECG Tests and Calibration ............................................................................... 3-15

3.4.2 Resp Performance Test..................................................................................... 3-16

3.4.3 SpO

Test.......................................................................................................... 3-16

3.4.4 NIBP Tests........................................................................................................ 3-16

3.4.5 Temp Test ......................................................................................................... 3-17

3.4.6 IBP Tests........................................................................................................... 3-17

3.4.7 C.O. Test........................................................................................................... 3-19

3.4.8 Mainstream CO

3.4.9 Sidestream and Microstream CO

Tests...................................................................................... 3-20

Module Tests.............................................. 3-21

3.4.10 AG Tests ......................................................................................................... 3-21

3.4.11 ICG Test ......................................................................................................... 3-22

3.4.12 BIS Test .......................................................................................................... 3-22

3.4.13 RM Test .......................................................................................................... 3-23

3.4.14 CCO/SvO

Tests ............................................................................................. 3-24

3.5 Nurse Call Relay Performance Test .............................................................................. 3-25

3.6 Analog Output Performance Test .................................................................................. 3-25

3.7 Electrical Safety Test..................................................................................................... 3-26

3.8 Touchscreen Calibration................................................................................................ 3-26

3.9 Recorder Check............................................................................................................. 3-26

3.10 Network Print Test ...................................................................................................... 3-27

3.10.1 Equipment Connection and Setup .................................................................. 3-27

3.10.2 Print Function Test ......................................................................................... 3-27

3.11 Battery Check..............................................................................................................3-28

3.12 Factory Maintenance ................................................................................................... 3-29

3.12.1 Accessing Factory Maintenance Menu........................................................... 3-29

3.12.2 Drawing Waves .............................................................................................. 3-29

3.12.3 Recorder ......................................................................................................... 3-29

3.12.4 Software Version ............................................................................................ 3-30

3.12.5 Monitor Information....................................................................................... 3-31

3.12.6 Calibrate NIBP ............................................................................................... 3-31

4 Troubleshooting................................................................................................................ 4-1

4.1 Introduction..................................................................................................................... 4-1

4.2 Part Replacement ............................................................................................................4-1

4.3 Patient Monitor Status Check.......................................................................................... 4-1

4.4 Software Version Check.................................................................................................. 4-2

4.5 Technical Alarm Check ................................................................................................... 4-2

4.6 Troubleshooting Guide.................................................................................................... 4-2

4.6.1 Power On/Off Failures ....................................................................................... 4-2

4.6.2 Display Failures ................................................................................................. 4-3

4.6.3 Module Rack Failures ........................................................................................ 4-4

4.6.4 Alarm Problems.................................................................................................. 4-6

4.6.5 Button and Knob Failures .................................................................................. 4-7

4.6.6 Recorder Failures ............................................................................................... 4-7

4.6.7 Interface Failures................................................................................................ 4-8

4.6.8 CF Card Problems .............................................................................................. 4-8

4.6.9 Power Supply Failures ....................................................................................... 4-9

4.6.10 Network Related Problems............................................................................. 4-10

4.6.11 Software Upgrade Problems............................................................................4-11

4.6.12 Technical Alarm Messages ..............................................................................4-11

4.6.13 M51A Self Test Information........................................................................... 4-12

5 Repair and Disassembly .................................................................................................. 5-1

5.1 Tools................................................................................................................................ 5-1

5.2 Preparations for Disassembly.......................................................................................... 5-1

5.3 Basic Disassembly .......................................................................................................... 5-2

5.3.1 Disconnecting the Base ...................................................................................... 5-2

5.3.2 Separating the Front and Rear Half of the Monitor............................................ 5-4

5.4 Further Disassembly........................................................................................................ 5-6

5.4.1 Removing the Power Switch & LED Board ...................................................... 5-6

5.4.2 Disconnecting the Encoder Assembly................................................................ 5-7

5.4.3 Removing the Button Board............................................................................... 5-7

5.4.4 Removing the Touchscreen Control Board ........................................................ 5-8

5.4.5 Removing the Inverter........................................................................................ 5-9

5.4.6 Removing the LCD Screen .............................................................................. 5-10

5.4.7 Removing the Alarm Lamp Board ................................................................... 5-12

5.4.8 Removing the Wireless AP............................................................................... 5-13

5.4.9 Removing the CF Assembly............................................................................. 5-15

5.4.10 Removing the Main Board ............................................................................. 5-16

5.4.11 Removing the Fan .......................................................................................... 5-18

5.4.12 Removing the Speaker ................................................................................... 5-18

5.4.13 Removing the Interface Board Assembly....................................................... 5-19

5.4.14 Removing the Power Supply Assembly ......................................................... 5-20

5.4.15 Removing the Integral Module Rack ............................................................. 5-24

5.4.16 Removing the Recorder.................................................................................. 5-28

5.5 Removing the SMR Assembly...................................................................................... 5-33

5.6 Disassembling Modules ................................................................................................ 5-37

5.6.1 Disassembling the ICG Module ....................................................................... 5-37

5.6.2 Disassembling CO

Module ............................................................................. 5-40

5.6.3 Disassembling the New MPM Module ............................................................ 5-46

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

6.1 Introduction..................................................................................................................... 6-1

6.2 Main Unit ........................................................................................................................ 6-2

6.3 Base Assembly................................................................................................................ 6-3

6.4 Front housing Assembly.................................................................................................. 6-4

6.4.1 17” LCD with Anti-glare Screen........................................................................ 6-4

6.4.2 17” LCD Touchscreen........................................................................................ 6-6

6.5 Rear Housing Assembly.................................................................................................. 6-8

6.5.1 Rear Housing Assembly..................................................................................... 6-8

6.5.2 Power module................................................................................................... 6-10

6.5.3 Integral Module Rack....................................................................................... 6-12

6.5.4 Interface Board Assembly ................................................................................ 6-13

6.5.5 Main Support Assembly................................................................................... 6-15

6.5.6 Main Control Board Assembly......................................................................... 6-17

6.5.7 6800 Internal Wireless AP Assembly ............................................................... 6-18

6.5.8 Others ............................................................................................................... 6-18

6.6 SMR Assembly ............................................................................................................. 6-20

6.6.1 SMR Assembly................................................................................................. 6-20

6.6.2 SMR Inside Assembly...................................................................................... 6-21

6.7 Parameter Modules........................................................................................................ 6-22

6.7.1 MPM Module ................................................................................................... 6-22

6.7.2 New MPM Module .......................................................................................... 6-24

6.7.3 C.O. Module..................................................................................................... 6-26

6.7.4 RM Module ...................................................................................................... 6-28

6.7.5 ICG Module ..................................................................................................... 6-29

6.7.6 AG Module....................................................................................................... 6-31

6.7.7 BIS Module ...................................................................................................... 6-33

6.7.8 IBP Module ...................................................................................................... 6-34

6.7.9 Mindray CO

6.7.10 Oridion CO

Module....................................................................................... 6-35

Module ...................................................................................... 6-37

6.7.11 CCO Module .................................................................................................. 6-38

6.8 Remote Display Box ..................................................................................................... 6-40

6.9 Wireless AP................................................................................................................... 6-41

6.10 Replaceable Parts ........................................................................................................ 6-42

Main Unit ................................................................................................................ 6-42

6.10.1......................................................................................................................... 6-42

SMR ........................................................................................................................ 6-44

6.10.2......................................................................................................................... 6-44

6.10.3 New MPM Material ....................................................................................... 6-44

6.10.4 Parameter Modules......................................................................................... 6-46

6.10.5 Cables............................................................................................................. 6-47

7 Upgrade............................................................................................................................. 7-1

7.1 Introduction..................................................................................................................... 7-1

7.2 Upgrading Parameter Modules........................................................................................ 7-2

7.3 Upgrading Functional Assemblies .................................................................................. 7-4

7.3.1 Upgrading SMR ................................................................................................. 7-5

7.3.2 Upgrading Wireless Network Function.............................................................. 7-5

7.3.3 Upgrading Recorder ........................................................................................... 7-5

7.3.4 Upgrading Analog Output.................................................................................. 7-5

7.3.5 Upgrading CIS ................................................................................................... 7-5

7.4 Upgrading Software ........................................................................................................ 7-6

7.4.1 How to Upgrade Software.................................................................................. 7-7

A Electrical Safety Inspection ........................................................................................... A-1

A.1 Power Cord Plug ........................................................................................................... A-2

A.2 Device Enclosure and Accessories................................................................................ A-2

A.3 Device Labeling ............................................................................................................ A-3

A.4 Protective Earth Resistance ........................................................................................... A-3

A.5 Earth Leakage Test ........................................................................................................ A-5

A.6 Patient Leakage Current ................................................................................................ A-6

A.7 Mains on Applied Part Leakage .................................................................................... A-8

A.8 Patient Auxiliary Current .............................................................................................A-11

A.9 Functional test .............................................................................................................A-12

FOR YOUR NOTES

1 Safety

1.1 Safety Information

DANGER

z Indicates an imminent hazard that, if not avoided, will result in death or serious

injury.

WARNING

z Indicates a potential hazard or unsafe practice that, if not avoided, could result in

death or serious injury.

CAUTION

z Indicates a potential hazard or unsafe practice that, if not avoided, could result in

minor personal injury or product/property damage.

NOTE

z Provides application tips or other useful information to ensure that you get the

most from your product.

1-1

1.1.1 DANGER

There are no dangers that refer to the product in general. Specific “Danger” statements may

be given in the respective sections of this manual.

1.1.2 Warnings

WARNING

z All installation operations, expansions, changes, modifications and repairs of this

product are conducted by Mindray authorized personnel.

z There is high voltage inside the equipment. Never disassemble the equipment

before it is disconnected from the AC power source.

z When you disassemble/reassemble a parameter module, a patient leakage current

test must be performed before it is used again for monitoring.

z The equipment must be connected to a properly installed power outlet with

protective earth contacts only. If the installation does not provide for a protective

earth conductor, disconnect it from the power line and operate it on battery power,

if possible.

z Dispose of the package material, observing the applicable waste control regulations

and keeping it out of children’s reach.

1.1.3 Cautions

CAUTION

z Make sure that no electromagnetic radiation interferes with the performance of the

equipment when preparing to carry out performance tests. Mobile phone, X-ray

equipment or MRI devices are a possible source of interference as they may emit

higher levels of electromagnetic radiation.

z Before connecting the equipment to the power line, check that the voltage and

frequency ratings of the power line are the same as those indicated on the

equipment’s label or in this manual.

z Protect the equipment from damage caused by drop, impact, strong vibration or

other mechanical force during servicing.

1-2

1.1.4 Notes

NOTE

z Refer to Operation Manual for detailed operation and other information.

1.2 Equipment Symbols

Attention: Consult

accompanying documents

(this manual).

CIS connector

Danger: High-voltage

Alternating current(AC)

Power ON/OFF

Battery indication

Zero key

Calibrate key

Measure/Standby

Check sensor

ESD warning symbol for Electrostatic sensitive devices.

Network connector

Defibrillator connector

Connector for satellite

module rack

Video output

Auxiliary output connector

USB connector

Equipotential terminal

CE marking

Type CF applied part. Defibrillator-proof protection against electric shock.

Type BF applied part. Defibrillator-proof protection against electric shock.

1-3

FOR YOUR NOTES

1-4

2 Theory of Operation

2.1 Introduction

This patient monitor is designed to monitor a fixed set of physiological parameters including

ECG, heart rate (HR), respiration (Resp), temperature (Temp), SpO

non-invasive blood pressure (NIBP), invasive blood pressure (IBP), cardiac output (C.O.),

carbon dioxide (CO

bispectral index (BIS) and respiration mechanics (RM) of single adult, pediatric and neonatal

patients.

), oxygen (O2), anesthetic gas (AG), impedance cardiograph (ICG),

, pulse rate (PR),

The patient monitor also:

 Provides audible and visual alarm indications in case of patient or equipment problems.  Enables displaying, reviewing, storing and transferring of real-time data.  Incorporates multiple input devices such as buttons, knob, touchscreen, keyboard and

mouse.

 Interfaces a clinical information system or central monitoring system.  Enables program upgrade over the network.

2-1

2.2 System Connections

2.2.1 Mounting the Patient Monitor

The patient monitor can be mounted on a wall bracket or on a trolley support. The wall

bracket or trolley support can be ordered optionally. Each type of mounting bracket is

delivered with a complete set of mounting hardware and instructions. Refer to the

documentation delivered with the mounting hardware for instructions on assembling mounts.

CAUTION

z Use mounting brackets we supply or approve. If other compatible mounting

bracket is used, be sure it can be safely used on the patient monitor.

z The mounting bracket should be installed by our qualified service personnel, or

engineers who have adequate knowledge on it.

z If other mounting solution is used, the installation personnel and the customer

should verify if it can be safely used on the patient monitor, and the customer

assume the responsibility for any risk resulting from that.

2-2

2.2.2 Connectors for Peripheral Devices

On the back of the patient monitor you will find all connectors for peripheral devices.

1. AC Power Connector: used to connect an AC power source (100 to 240 VAC, 50/60Hz).

2. Equipotential Terminal: used to connect the equipotential terminal of other equipment,

eliminating potential difference between different pieces of equipment.

3. SMR Connector: It outputs a 12V DC, used to connect the SMR.

4. Video Output: It is a DVI-D connector used to connect a secondary display.

5. CIS Connector: It is a RJ45 connector used to connect a CIS.

6. Network Connector: It is a RJ45 connector used to connect an ethernet network or a PC.

7. Analog Output and Defibrillator Connector: It is a Micro-D connector used to output

analog signals and defibrillator synchronization signals.

8. Auxi Output Connector: It is a BNC connector used to output nurse call signals.

9. Secondary USB Connector: used to connect the mouse and keyboard of the secondary

display.

10. General USB Connector: used to connect any USB-compatible peripheral device.

2-3

2.3 Main Unit

The patient monitor consists of:

 Input system: button board, knob, touchscreen, power switch and LED board  Output system: LCD panel, alarm LED board, recorder, speaker  Processing and communications system: main board, CIS assembly, integral module

rack

 Power management system: battery, battery interface board, power module  Equipment interface system: USB interface board, DVI interface board, CF card

assembly and internal wireless network card.

Additionally, the patient monitor can also connect a satellite module rack (SMR), parameter

modules, mouse, keyboard, etc.

The following diagram illustrates the structure of the patient monitor.

2-4

2.3.1 Input System

Button board

The button board, located at the lower part of the monitor’s front panel, contains 6 keys and

provides connections for the following components to the main board:

 Knob  Power switch & LED board  Touchscreen control board  Backlight board  Alarm LED board

The following diagram shows the button board connections.

Knob

The knob can be pressed, or rotated both clockwise and counter-clockwise. It is connected

with the button board.

Touchscreen

The touchscreen enables touch operations and can be calibrated. It is connected with the

touchscreen control board and main board.

Power switch & LED Board

The power switch & LED board controls the power supply for the main unit. It has three

LEDs, which respectively indicate the AC power status, battery status and monitor power

on/off status. It is connected with the button board.

2-5

2.3.2 Output System

LCD

The patient monitor adopts a high-resolution LCD. The LCD is connected with the main

board. Signals and power supply of the backlight board are transferred by the button board.

Alarm Lamp

The patient monitor has two alarm lamps: alarm lamp and technical alarm lamp. Alarm lamp

lights either red or yellow whereas technical alarm lamp lights blue only. The signals from

the alarm lamps are transferred by the button board and are controlled directly by the main

board.

Recorder

The recorder receives data coming form the main board and then sends them to the thermal

printhead for printing. The recorder has a hardkey (starting/stopping recordings) and a green

LED on its front. It is connected with the main board.

The following diagram shows its operating principle.

2-6

Module Description

Power interface Introduces a DC from the main board.

Power module

CPU Control the communications between modules.

Signal interface

Motor drive circuit

Button & LED

board

Converts the input power into voltages that fit each module and then

forwards them to each module.

Control the communications between the main board and the

recorder CPU.

Receives the control signals from the CPU and then forwards them to

the step engines.

Includes one button and one LED which are directly controlled by

the CPU.

Speaker

The speaker provides sound for alarms, key strokes, heart beats and pulse, and allows PITCH

TONE and multi-level tone modulation. It is connected with the main board and is directly

driven by the main board.

2.3.3 Processing and Communications System

Main Board

The main board is the heart of the patient monitor. It implements a series of tasks including

input & output control, data storage and processing, display processing, system control,

communication management, printing management and alarming, etc.

The main board comprises the CPU board and mother board. The following diagram shows

interfaces to other components.

2-7

The CPU board is an essential CPU system containing the CPU, FLASH, memory, realtime

clock, EEPROM, etc. It interfaces to the mother board only, which then provides interfaces to

all other external devices.

The mother board is in charge of connections and communications with other components

and provides the following interfaces:

 LCD port: connects a built-in display.  Video output+network+IO+IIC: connects the digital video interface board.  USB×2+UART: connects the USB interface board.  Button board port: connects the button board.  Integral module rack port: connects integral module rack communication board.  Fan port: connects the fan.

2-8

 Speaker port: connects the speaker.  Power module port: connects the power module.  CIS port: located at the back of the mother board for connecting the CIS components.  CF port: connects the CF card assembly.  Recorder port: connects the recorder.  Internal wireless network card port: connects the internal wireless network card

Integral Module Rack

The patient monitor has two kinds of integral module rack: 2-slot and 5-slot. The control

board includes a NIOS II FPGA. It implements protocol conversion and infrared

communication between the main unit and the parameter modules.

The module rack communication board can be a 2-slot type or a 3-slot type. The 3-slot

communication board communicates the main board directly. The 2-slot communication

board is connected with and is controlled by the 3-slot communication board. The 3-slot

communication board has the function of communication control. The 2-slot communication

board consists of the infrared circuit and module power circuit. The RS422 drive circuit is

located on the 3-slot communication board.

2.3.4 Power Management System

Battery

The patient monitor uses two chargeable lithium-ion batteries (11.1 V, 4500 mAh). The

battery compartment door is located at the bottom of the patient monitor. The battery power

is introduced to the power module via the battery interface board, and then processed and

distributed to each component by the power module.

NOTE

z Two batteries must be used simultaneously when the patient monitor operates on

battery power. Otherwise, it may cause power supply protection.

Battery Interface Board

The battery interface board connects batteries to the power module, enabling charging and

discharging between the batteries and the power board.

2-9

Power Module

The power module is located at the back of the patient monitor. The main part of the power

module is the power board, which contains 4 PCBs: charging & power management board,

voltage drop DC inverter, voltage rise and drop DC inverter, and voltage drop 5 V CIS power

board.

The power module transforms the input power into DC and then forwards them to each

component of the patient monitor. The input power comes from either the batteries or an AC

source. The patient monitor will run power from the AC source whenever an AC source is

available. If the AC source becomes unavailable, the patient monitor will automatically

switch to the battery power. This does not affect the monitor’s operating status.

Power module has an AC input socket at its backside, and a socket at its front provides 4

connections to the batteries, main board, CIS components and USB interface board

respectively. The power module protects itself and the patient monitor by switching off AC

input or DC output in case of overcurrent, short circuit and overvoltage.The power module

provides 4 DC outputs:

Outputs Description

+3.3 V

+5.0 V

+5.0 V CIS Goes to the CIS assembly.

+12 V

The systematic principle diagram of the power module is as follows:

Goes to the LCD, mother board, CPU board, DVI interface board and

integral module rack.

Goes to the DVI interface board, recorder, CF storage card board and

USB interface board.

Goes to the recorder, LCD inverter, integral module rack, parameter

modules and USB interface board.

2-10

The following diagram shows the pins of the power module socket (excluding the pins of the

battery power socket. On power board, pin 1 has a triangle symbol):

Pin ID Marking Description Cable

color

2, 4, 6, 7,

13, 15, 17

GND The output grounding terminal of the power board. Black

8 RXD Receives serial communications (the main board sends). Purple

9 TXD Sends serial communications (the main board receives). Brown

Power on/off control signal. It is a TTL pulse signal

inputted from the back board. Every time when the power

10 PCON

on/off switch is pressed (pulse of falling edge), a switch

between power “on” and “off” happens. The pulse

Blue

duration is no less than 0.1 s for power-on and no less

than 2 s for power off.

Backlight on/off control signal. The main board sends a

backlight on/off control signal to the power board through

11 LCD-EN

the serial interface. The power board processes the

Green

received signal and then outputs a high or low level

depending on the received signal.

12, 1 12 V

14, 3 5 V CIS

The positive end of the 12 V DC coming from the power

board.

The positive end of the 5 V CIS coming from the power

board.

Ye ll o w

Purple

16, 5 5 V

18, 19 3.3 V

The positive end of the 5 V DC coming from the power

board.

The positive end of the 3.3 V DC coming from the power

board.

Red

Orange

20 LED- AC AC power status indication signal White

21 LED- BAT Battery status indication signal. Grey

22 LCD-BR Backlight brightness control voltage. Brown

2-11

2.3.5 Equipment Interface System

USB Interface Board

The USB interface board is compatible with such USB interfaces as USB2.0, USB1.1 and

USB1.0. It is connected with the main board and the power module. It receives two USB

differential signals coming from the main board and then distributes them to ten USB

interfaces via two ISP1521 chips. The UART signal output by the main board is converted

into RS422 signal by the USB interface board. The USB interface board receives 5 VDC and

12 VDC inputs from the power module, of which the 5 VDC goes to the USB interface board

and the 12 VDC outputted to the SMR connector through a fuse.

2-12

DVI Interface Board

The DVI interface board is connected with the mother board and the CIS mother board. The

following diagram shows its interfaces to other components.

Interface Description

CIS Connector Connects the CIS mother board.

BNC connector Outputs nurse call signals.

Micro-D connector Outputs analog signals and defibrillator synchronization signals.

RJ 45 connector

(network)

RJ 45 connector (CIS) It is a standard RJ45 connector for connecting a CIS network.

DVI-D connector Connects a secondary display.

It is a standard RJ45 connector, providing 10/100 BASE-TX Ethernet

communications channels. It connects an Ethernet network or a PC.

CF Card assembly

The CF assembly serves the non-volatile CF storage card which is used for data storage and

transfer. It is connected with the mother board.

Internal wireless network card

The internal wireless network card connects with the mother board. User can set network

type as LAN or WLAN through user interface and can set the internal wireless network card

through PC.

2-13

2.4 Parameter Module

Each parameter module consists of the module infrared communication board, module power

board, module button board, parameter board, etc.

2.4.1 Module Infrared Communication Board

The module infrared communication board allows a short delay when powering up the

module and adopts FPGA to enable infrared communications between the module and the

module rack. An ID is integrated into the module infrared communication board. When a

module is inserted in the module rack, the ID is automatically sent to the module rack.

2.4.2 Module Power Board

Some modules have no power board. There are two kinds of module power board:

1. Isolated power board: converts the 12 V DC into a 12 V isolated DC and a 5 V isolated

DC.

2. Non-isolated power board: converts the 12 V DC into a 5 V DC.

2.4.3 Parameter Board

The parameter board is a parameter measurement component, which is the most important

component of the parameter module.

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