Mindray NetGuard User manual

™
Datascope
NetGuard
Service Manual
0070-01-0685-01_revB.indd 1 3/10/10 5:23:19 PM

™
Datascope
NetGuard
Service Manual

NetGuard Service Manual 0070-10-0685
NetGuard® is a U.S. registered trademark of Mindray DS USA, Inc.
Copyright ©Mindray DS USA, Inc., 2009. All rights reserved. Contents of this publication may not be reproduced in any
form without permission of Mindray DS USA,Inc.

NetGuard Service Manual 0070-10-0685 i
Table of Contents
Foreword.......................................................................................................................................................iii
Warnings, Cautions and Notes ........................................................................................................................iii
Instrument Description ...................................................................................................... 1 - 1
Introduction.................................................................................................................................................... 1 - 1
Overview....................................................................................................................................................... 1 - 1
Core Functions ............................................................................................................................................... 1 - 3
Connectivity ................................................................................................................................................... 1 - 3
Block Diagrams .............................................................................................................................................. 1 - 3
System Modules and Components..................................................................................................................... 1 - 4
Patient Worn Device ................................................................................................................................ 1 - 4
Access Points .......................................................................................................................................... 1 - 4
NetGuard Access Point Switch .................................................................................................................. 1 - 4
NetGuard Server Application.................................................................................................................... 1 - 4
NetGuard Client Application .................................................................................................................... 1 - 4
Repair Information ........................................................................................................... 2 - 1
Introduction.................................................................................................................................................... 2 - 1
Safety Precautions ................................................................................................................................... 2 - 1
Equipment and Special Tools Required....................................................................................................... 2 - 1
Troubleshooting .............................................................................................................................................. 2 - 2
Installing the Server Software .................................................................................................................... 2 - 5
Installing the Client PC Software ................................................................................................................ 2 - 7
Programming the Access Points ................................................................................................................. 2 - 10
Telnet Instruction...................................................................................................................................... 2 - 11
Program Instructions................................................................................................................................. 2 - 12
Troubleshooting .............................................................................................................................. 2 - 17
Configurations ................................................................................................................................ 2 - 17
Replacement Parts ............................................................................................................ 3 - 1
System Requirements and Specifications ........................................................................... 4 - 1
Server - Minimum Requirements ........................................................................................................................ 4 - 1
Hardware............................................................................................................................................... 4 - 1
Software................................................................................................................................................. 4 - 1
Switch - Minimum Requirements ........................................................................................................................ 4 - 2
Client PC - Minimum Requirements .................................................................................................................... 4 - 2
PC Hardware.......................................................................................................................................... 4 - 2
PC Software............................................................................................................................................ 4 - 2
Mounting Rack (if applicable)........................................................................................................................... 4 - 2
Cabling ......................................................................................................................................................... 4 - 2
Cable Connectors ........................................................................................................................................... 4 - 2
Power Requirements ........................................................................................................................................ 4 - 2
Agency Compliance........................................................................................................................................ 4 - 3

Table of Contents
ii 0070-10-0685 NetGuard Service Manual

NetGuard Service Manual 0070-10-0685 iii
Foreword Introduction
Foreword
The NetGuard Service Manual is a guide for technically-qualified personnel who perform
maintenance and /or repair on the NetGuard System.
The Service Manual conveys system-wide information that is divided into sections. For quick
reference, each chapter’s title page displays a table of contents that indicates sectionally, the
topics covered.
This publication may have been updated to reflect product design changes and/or manual
improvements.
NOTE: Unauthorized servicing may void the remainder of the
warranty. Check with the factory or with a local authorized
Mindray DS representative to determine the warranty status
of a particular instrument.
Warnings, Cautions and Notes
Please read and adhere to all warnings, precautions and notes listed here and in the
appropriate areas throughout this manual.
A WARNING is provided to alert the user to potential serious outcomes (death, injury, or
serious adverse events) to the patient or the user.
A CAUTION is provided to alert the user to use special care necessary for the safe and
effective use of the device. They may include actions to be taken to avoid effects on patients
or users that may not be potentially life threatening or result in serious injury, but about which
the user should be aware. Cautions are also provided to alert the user to adverse effects on
this device of use or misuse and the care necessary to avoid such effects.
A NOTE is provided when additional general information is applicable.

Introduction Warnings, Cautions and Notes
iv 0070-10-0685 NetGuard Service Manual
Warnings
WARNING: Only qualified and trained Mindray DS Patient Monitoring
Service personnel or those trained by Mindray DS Patient
Monitoring Service should attempt to service this equipment.
Service is defined as any activity requiring the cover to be
removed for internal adjustments, parts replacements,
repairs or software upgrades of any kind to ensure
compatibility.
WARNING: To ensure compatibility with the operating system and
applications software, use only Mindray DS USA, Inc.
supplied and/or approved components to repair any part of
the NetGuard™System. Use of unauthorized software,
devices, accessories, or cables other than those approved by
Mindray DS USA, Inc. may render the application unsuitable
for medical patient monitoring. It may also result in
increased electromagnetic emissions or decreased Immunity
of the system.
WARNING: To adequately display the software application, it is
important to maintain a minimum screen resolution of
1024x768 with 96 dpi.
WARNING: Some of the equipment on the NetGuard Network must
utilize the hospital emergency power system. Failure to do
so will result in loss of monitoring during extended periods
of power failure. The back-up power time period for the
NetGuard Network is limited.
WARNING: Changes to the NetGuard server configuration and client PC
software should not be performed without the guidance of
a qualified service representative.
WARNING: Do not use the NetGuard device in an explosive atmosphere
or in the presence of flammable anesthetics or gases.
Cautions
CAUTION: For proper operation use with UL agency approved ethernet
cables.
CAUTION: For proper operation, do not use the equipment with a
frayed or damaged power cord or ethernet cable.
CAUTION: Do not use a damaged or broken unit or accessory.
CAUTION: For proper operation never place fluids on top of the server.
In case of accidental spillage, remove power, wipe clean
immediately and have the system serviced to ensure no
hazard exists.
CAUTION: The server and client PC for this device must only be setup
by qualified service personnel.
CAUTION: Do not block the client PC’s speakers. Set the volume levels
to ensure that alarms can always be heard.
CAUTION: Speaker volume should be set high enough to hear an
alarm above ambient noises.

NetGuard Service Manual 0070-10-0685 v
CAUTION: To avoid possible interference with other facility devices, use
the correct AC cord for all equipment installed on the
NetGuard network.
CAUTION: It is recommended that password protected screen savers
be disabled after the NetGuard client PC software
installation. Use of screen savers may degrade the
performance of NetGuard software application.
CAUTION: It is recommended that the Microsoft®Windows power
management features such as power save or hibernation be
disabled after the NetGuard client-side software
installation.

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NetGuard Service Manual 0070-10-0685 1 - 1
1.0 Instrument Description
1.1 Introduction
This section of the service manual provides an overview of the NetGuard System, followed
by more detailed information.
1.2 Overview
The NetGuard System is an ambulatory monitoring system that issues alerts automatically to
clinicians when it recognizes potentially life-threatening cardiac rhythms in monitored
patients. The system monitors patient ECG and heart rate and issues alerts whenever specific
arrhythmias are detected or the measured values deviate from acceptable ranges.
The NetGuard System (shown in FIGURE 1-1) consists of the NetGuard devices, a wireless
infrastructure, a central server, one or more client PCs, and proprietary software running on
the server and client PCs.
The server application collects patient data from the reusable device via ceiling or wall
mounted access points. This allows patients to move within the designated areas of the
hospital. The NetGuard wireless network is based on ZigBee protocol (802.15.4) which
operates in the 2.4 GHz band.

Overview Instrument Description
1 - 2 0070-10-0685 NetGuard Service Manual
FIGURE 1-1 NetGuard System Overview
Hospital Backbone
max = 60ft
NetGuard Server
Patients wearing
NetGuard Devices
Client PCs
NetGuard Access
Point

NetGuard Service Manual 0070-10-0685 1 - 3
Instrument Description Core Functions
1.3 Core Functions
The NetGuard client application displays, records, and recalls patient ECG data (i.e., heart
rate, and waveforms). At installation of the system, the following items are setup:
• User Management
• Room Management
• Monitor Group Management
• Alarm Management
• Database Management
• Network / Device Management
In the event of a Lethal System level alarm, a hospital staff member must see the patient to
silence the alarm. All other alarms, such as System level heart rate alarms and Technical
alarms can be silenced at the NetGuard client application.
1.4 Connectivity
The reusable device is powered when connected to the disposable electrode. Cardiac
signals and device status are transmitted wirelessly to access points. The access points are
connected via Ethernet cabling to the network switch, and a server. Patient data is processed,
and sent to the NetGuard client application.
1.5 Block Diagrams
FIGURE 1-2

System Modules and Components Instrument Description
1 - 4 0070-10-0685 NetGuard Service Manual
1.6 System Modules and Components
1.6.1 Patient Worn Device
The patient worn device consists of two components: a disposable electrode and reusable
transmitter. The disposable consists of a lead wire set, a coin cell battery, and a receptacle
for the reusable. The reusable analyzes the ECG data from the disposable and transmits it
wirelessly to the access points.
1.6.2 Access Points
Access points route data between the patient worn device and the server. The reception
range of the access point is dependent on the surrounding environment (e.g., wall
construction, etc.) and is determined during the site survey.
1.6.3 NetGuard Access Point Switch
The switch connects and powers (PoE) the access points to the NetGuard server and the
hospital network.
1.6.4 NetGuard Server Application
The server application receives data from the patient worn devices and stores it in the patient
database. This application also distributes the data from the database to the client
application.
1.6.5 NetGuard Client Application
The client application runs on designated PCs and supports the following:
• Patient admission and discharge from the system
• Displays alarms and patient heart rate data
• Prints reports and other patient related information

NetGuard Service Manual 0070-10-0685 2 - 1
2.0 Repair Information
2.1 Introduction
This section provides the necessary technical information to perform repairs to the NetGuard
System. The most important prerequisites for effective troubleshooting are a thorough
understanding of the system functions. If necessary, refer to the NetGuard Operating
Instructions (P/N 0070-00-0678-XX), which describes instrument functions and features in full
detail.
2.1.1 Safety Precautions
If any of the instrument covers are removed, make certain to observe the proper anti-static
precautions.
2.1.2 Equipment and Special Tools Required
When performing system repairs, the following special tools may be needed:
• Laptop Computer
• Test Device Setup
• Bootstrap Loader
• CAT5E Cable Tester
• PoE Tester
• Wi-Fi Packet Analyzer

Troubleshooting Repair Information
2 - 2 0070-10-0685 NetGuard Service Manual
Since no repairs are performed to the access points or reusables, other than reprogramming,
the previously listed tools can determine the location of the faulty components.
Only trained personnel are responsible for the service of equipment purchased from Mindray
DS USA, Inc. If opening the server is necessary, power it down and vacuum any
accumulated dust around the fan blades before opening it.
NOTE: The hospital is responsible for maintaining their network
components.
2.2 Troubleshooting
Separate the NetGuard components into the following sections:
1. Patient worn devices
2. Access Points
3. Network Rack Components
4. Client PC(s)
During the NetGuard installation process, an NetGuard Installation Verification Document
was completed listing all the MAC addresses, IP addresses, Subnet Mask addresses assigned
to the access points, server, and client PC(s). Always have a copy available for reference. If
a copy is not available, contact a service representative or authorized distributor that
installed the system.
Prior to troubleshooting a network problem, verify the following areas:
• Review Site Survey documentation
• All AC and DC power connections are secure.
• All Ethernet cable connections are secure. Verify connection and communication LEDs on
the switch. Affected cable runs could be tested with a cable tester for continuity.
• IP addresses for the server and client application
• Equipment assignment for the patient devices at the NetGuard client application
• Refer to diagram in the NetGuard Customer Installation Guide (P/N 0070-00-0686) for
LED status.
• View server or PC logs
ISSUE COMMENTS SOLUTION
ACCESS POINTS
Access point LEDs not illuminated In order for the amber LEDs to illuminate,
the green LEDs must be illuminated as they
indicate power and are on solid. One of
the flashing amber LEDs indicates
communication with the reusable. The other
flashing amber LED indicates connection to
the network. The reusable device Status
LED is amber.
Check the switch for the related port
and re-seat the cable connector.
Check the switch LED for that port to
see if the connection is recognized
and is communicating. If not, try a
different port or reboot the switch.

NetGuard Service Manual 0070-10-0685 2 - 3
Repair Information Troubleshooting
Verify the switch is a Power over
Ethernet (PoE) switch and that it
meets the 802.3af standard.
Re-seat the connector of the cable at
the access point.
Test the cable with a cable tester.
Replace the access point (refer to the
NetGuard Service Installation Guide
P/N 0070-00-0687).
No communication between the
access point and reusable device
The reusable device Status LED flashes
amber.
Verify the LEDs on the access point(s)
are illuminated.
Verify that the reusable device is
entered into the Administrative Web
Site by device label and MAC
address
Check if there are other reusables
connected to the access point and
that they are functioning. Also verify
that the number of reusables
reporting to the access point does not
exceed 20 device limit. Refer to the
NetGuard Service Installation Guide
P/N 0070-00-0687).
Check that there is sufficient battery
power to the reusable.
Reprogram the device.
Replace the access point.
Refer to the NetGuard Operating
Instructions (P/N 0070-00-0678-XX)
for the power-up sequence.
REUSABLE DEVICE
Cannot enter the device to the
Administrative Web Site
The reusable may not be programmed. Program the reusable.
The device cannot detect a heart
rate.
The Patient LED flashes yellow/amber. Verify the disposable placement
connection.
Remove the reusable and re-seat in
disposable.
Replace the reusable.
Replace the disposable and try the
reusable again.
No communication between the
reusable and the network.
The Status LED flashes yellow/amber. Verify the green access point LEDs
are illuminated.
ISSUE COMMENTS SOLUTION

Troubleshooting Repair Information
2 - 4 0070-10-0685 NetGuard Service Manual
Verify that the reusable device is
entered into the Administrative Web
Site by device label and MAC
address, and entered correctly. Refer
to NetGuard Service Installation
Guide, P/N 0070-00-0687).
Verify that there are other reusable
devices connected to the access point
and that they are functioning.
Verify that the number of reusable
devices reporting to the access point
does not exceed the 20 device
maximum.
Reprogram the device.
Replace the device.
The Status LED is on solid yellow/
amber.
There is insufficient power for the device. Re-seat or replace reusable device
Failed Power On Self Test (POST) Re-seat or replace reusable device
NETWORK RACK
COMPONENTS
Access point switch indicators are
not illuminated and the access points
LEDs are not illuminated
Verify the switch is a PoE switch and
follows the 802.3af standard.
Verify power to the switch
Test Ethernet cable
Recycle power to the switch.
SERVER
Client PC states that it cannot
communicate with server
Verify the server has not been
restarted and sitting at the DOS
prompt. If so, select F1.
Check the Error Logs by opening the
C:\Documents and Settings\All User
s\Application Data\Datascope\Logs
\wdrs_debug.txt file.
The message “Page cannot be
found.” displays.
The IIS is not available. Load the IIS by doing the following:
Select Start > All Programs >
Administrative Tools > Services > IIS
Admin Service. Select Restart, then
select Yes.
CLIENT PC
ISSUE COMMENTS SOLUTION

NetGuard Service Manual 0070-10-0685 2 - 5
Repair Information Troubleshooting
2.2.1 Installing the Server Software
1. Verify or set the IP address and subnet mask on the server.
NOTE: Note these addresses on the Installation Verification
Document.
2. Set the Windows Update according to hospital procedure.
3. Load the NetGuard Server software onto the server following all the steps of the install
wizard:
a. Load the NetGuard Server software CD.
b. Go to My Computer and double-click on the respective drive.
c. Run Setup.exe from the NetGuard Server install folder.
d. Follow the default prompts and selections except on the Database Server dialog.
NetGuard software will not install. Verify the PC meets minimum
requirements. Refer to the System
Requirements and Specifications
chapter.
Note the specific error message and
contact technical support.
NetGuard client application is
unresponsive or runs slowly
Verify the PC meets minimum
requirements. Refer to the System
Requirements and Specifications
chapter.
Verify the network meets
requirements. Refer to the System
Requirements and Specifications
chapter.
Shut down other programs.
Cannot perform "ECG Request" Go to the Administrative Web Site
and verify the access point IP address
was entered correctly.
Communication Error message in
lower right corner of display.
Verify that the PC is connected to the
switch, the switch is connected to the
server, and the switch/server is
turned on.
Check the switch LEDs to verify the
corresponding ports are illuminated.
ISSUE COMMENTS SOLUTION
• On the Database Server field, change (local) to the server name.
• Verify that Windows authentication is selected.

Troubleshooting Repair Information
2 - 6 0070-10-0685 NetGuard Service Manual
NOTE: If software is being loaded for the first time, leave "Create
Database" checked. If updating the software to a new
revision, uncheck "Create Database".
e. When the installer finishes, select the option Yes, I want to restart my
computer now.
f. Enter a reason for the shut down.
NOTE: The system will not shut down until a reason is entered.
g. After the reboot, close the Manage Your Server dialog, if it displays.
4. After the server installation, connect the CAT5e patch cable between the server and the
switch.
5. Verify the LED on the switch illuminates/flashes for that port.
6. Telnet to each access point and set/verify the following:
• Firmware revision is correct
• MAC address matches the documentation
• IP address
• Subnet mask
NOTE: Remain in Telnet to change any of the parameters. Refer to
the Telnet section of this manual.
7. Enter the Configuration files on the server by navigating to the following:
C:\Program Files\Datascope Corp\WDRS\WDRS.exe.config
a. Verify the Alarm Delay is set at 15. If not, delete the number listed and enter 15.
b. Save the file.
Connect your PC to the network switch (change PC IP address to match the server IP address
scheme) and ping the server IP address.

NetGuard Service Manual 0070-10-0685 2 - 7
Repair Information Troubleshooting
2.2.2 Installing the Client PC Software
NOTE: Prior to installing the program, save and close all open
applications.
NOTE: Prior to installing the program, close all open applications.
1. Load the CD into the PC’s CD drive.
2. Double-click the Monitor.exe file to open the InstallShield Wizard.
FIGURE 2-1 InstallShield Wizard
3. Select Next to open the Choose Destination Location dialog box. The InstallShield
Wizard automatically selects a destination folder on the PC.
• Optional - select Browse to change the destination folder.
•SelectNext. The Configure Monitor window opens.