Instructions
This symbol is intended to alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying the appliance.
Dangerous Voltage
This symbol is intended to alert the user to the presence of un-insulated dangerous voltage
within the product’s enclosure that may be of sufficient magnitude to constitute a risk of
electric shock to persons.
Protective Grounding Terminal
This symbol indicates a terminal that must be connected to earth ground prior to making any
other connections to the equipment.
Life-Support Policy
As a general policy, Server Technology does not recommend the use of any of its products in the
following situations:
• life-support applications where failure or malfunction of the Server Technology product can be
reasonably expected to cause failure of the life-support device or to significantly affect its safety or
effectiveness.
• direct patient care.
Server Technology will not knowingly sell its products for use in such applications unless it receives in
writing assurances satisfactory to Server Technology that:
• the risks of injury or damage have been minimized,
• the customer assumes all such risks, and
• the liability of Server Technology is adequately protected under the circumstances.
The term life-support device includes but is not limited to neonatal oxygen analyzers, nerve stimulators
(whether used for anesthesia, pain relief or other purposes), auto-transfusion devices, blood pumps,
defibrillators, arrhythmia detectors and alarms, pacemakers, hemodialysis systems, peritoneal dialysis
systems, neonatal ventilator incubators, ventilators (for adults or infants), anesthesia ventilators, infusion
pumps, and any other devices designated as “critical” by the U.S. FDA.
Please Recycle
Shipping materials are recyclable. Please save them for later use, or dispose of them appropriately.
This publication is protected by copyright and all rights are reserved. No part of it may be
reproduced or transmitted by any means or in any form, without prior consent in writing from Server
Technology.
The information in this document has been carefully checked and is believed to be accurate.
However, changes are made periodically. These changes are incorporated in newer publication
editions. Server Technology may improve and/or change products described in this publication at
any time. Due to continuing system improvements, Server Technology is not responsible for
inaccurate information which may appear in this manual. For the latest product updates, consult the
Server Technology web site at
for direct, indirect, special, exemplary, incidental or consequential damages resulting from any defect
or omission in this document, even if advised of the possibility of such damages.
In the interest of continued product development, Server Technology reserves the right to make
improvements in this document and the products it describes at any time, without notices or
obligation.
www.servertech.com. In no event will Server Technology be liable
Appendix B: Warranty, Product Registration and Support ............................................................17
Chapter 1: Introduction
Quick Start Guide
The following instructions will help you quickly install and configure your Global Security Modem for
use in your Sentry product. For detailed information on each step, go to the page number listed to the
right.
1. Install the Global Security Modem.............................................................................................3
2. Configure the Global Security Modem ......................................................................................5
• Configure the Country Code...............................................................................................6
• Change the default Setup password ....................................................................................5
3. Connect to the Global Security Modem .....................................................................................3
Technical Support
Server Technology understands that there are often questions when installing and/or using a new
product. Free Technical Support is provided from 8:30 AM to 5:00 PM, Monday-Friday, Pacific Time.
See Technical Support in Chapter 4: Appendices for more information.
Server Technology, Inc.
1040 Sandhill Drive Tel: 775.284.2000 Web: www.servertech.com
Reno, Nevada 89521 USA Fax: 775.284.2065 Email: support@servertech.com
Equipment Overview
Each connector on the Global Security Modem is clearly labeled for easy identification:
• RJ12 Telco connector for connection to the incoming Telco line.
• IDC10 connector for connection to the Sentry internal logic/power
• 2-pin locking header for connection to internal power
IDC10 connector
2-pin locking header
RJ12 Telco
Figure 1.1 Global Security Modem
2 • Introduction Sentry Global Security Modem
Installation and Operations Manual
Chapter 2: Installation
Before installing your Global Security Modem (GSM), refer to the following lists to ensure that you
have all the items shipped with the unit as well as all other items required for proper installation.
Standard Accessories
• Global Security Modem module
• RJ11 to RJ11 crossover cable
Safety Precautions
• Use this product only with approved Server Technology devices.
• To reduce the risk of fire, use only 26 AWG (.41mm) or larger telephone wiring.
• Never install telephone wiring during a lightning storm.
• Never install a telephone jack in a wet location unless the jack is specifically designed for wet
locations.
•Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
• Use caution when installing or modifying telephone lines.
• Avoid using a telephone during an electrical storm; there is a risk of electrical shock from lightning.
• Do not use a telephone in the vicinity of a gas leak.
Installing the Global Security Modem module
These instructions apply only to Sentry models designed to be user-upgradeable. Sentry units without a
user-removable Modem plate must be upgraded by the factory.
NOTE: Server Technology highly recommends the use of a grounding wrist strap while installing the Global Security
Modem to avoid damaging any components due to static electricity (ESD).
1. Remove power from the Sentry device.
2. Loosen the Modem plate thumbscrews and gently pull plate away from enclosure exposing the
attached IDC10 cable (2-pin power cable also present on some units).
3. Disconnect the cable(s), from the connectors on the Modem plate.
4. Remove Modem plate completely from the enclosure and set aside.
5. Remove the Global Security Modem module from the ESD protective packaging.
6. Attach the IDC10 cable from step 3 to the IDC connector marked J2 and, if present, attach the 2-
pin cable from step 3 to the 2-pin locking header marked J3.
7. Gently insert the Global Security Modem module into the enclosure and tighten the thumbscrews.
Connecting to the Global Security Modem
The Global Security Modem is equipped with an RJ12 Telco port for direct connection to an incoming
telephone line.
Sentry Global Security Modem Installation • 3
Installation and Operations Manual
Chapter 3: Operations
The Sentry Global Security Modem is a v.92 (56K) data modem and provides out-of-band access to the
Sentry Remote Power Manager. The Sentry integrated Modem additionally supports Callback Security
and Remote Configuration.
NOTE: Sentry RPMs with integrated modems manufactured prior to June 30, 2003 may contain older OEM modem
modules. Use the ATI3 command to positively identify the type of integrated modem; the new Security Modem will
display ‘MT5634SMI’ in the response string. For support on configuring older modems, please contact Technical Support.
Logging In
You may log directly into the Global Security Modem to configure the Country Code, enable Callback
Security or other features. To log into the modem follow steps 1 through 3 from To initially configure the modem: below.
Initial Configuration
The Global Security Modem requires no initial configuration, with the exception of the Country Code,
to operate as a standard modem without the optional security mechanisms enabled; Callback Security is
disabled by default.
Provided are instructions to configure the modem through a serial/Pass-Thru connection from the
Sentry: prompt. The instructions below assume that the default Setup password has not been changed.
To initially configure the modem:
1. At the Sentry: prompt, type connect modem and press Enter.
2. After receiving the Connection Complete banner, type ate1q0v1 and press Enter. This
enables the modem’s command echo and enables verbose result code mode.
3. Type at#sMTSMODEM and press Enter to authenticate and enter configuration mode.
If the password is incorrect, the modem will display
4. Type at%t19,0, followed by the appropriate Country Code (see page 6) and press Enter.
5. Type ati19 and press Enter to verify the configured Country Result Code.
6. Type atz and press Enter to reset the modem with the new settings.
7. Type !*login and press Enter to break the Sentry serial connection to the modem. The Sentry will
display the Disconnecting… banner and return to the Sentry username: prompt.
NOTE: Server Technology recommends use of the ATZ command after any configuration changes to insure that they are
stored and that the modem is reinitialized with them. Re-authentication, step 3, is required after using the ATZ command
for any additional configuration changes.
Error.
4• Operations Sentry Global Security Modem
Installation and Operations Manual
Commands
AT commands are used to control and configure the operation of the Global Security Modem. AT
commands may be issued only from a serial Pass-Thru session from the Sentry or a remote
configuration command mode session, if enabled. See Remote Configuration on page 11 for more
information on remote configuration sessions.
AT commands may be issued in any combination of uppercase and lowercase. Multiple AT commands
may be issued in one line, also known as a command string. Command strings begin with AT and end
when Enter is pressed. The following table lists and briefly describes each command.
AT Command Summary
Command Description
#CBA Sets the maximum Callback attempts
#CBD Sets the Callback delay
#CBF Displays the Callback failed attempts counter
#CBFR Resets the Callback failed attempts counter
#CBN Sets a Callback password
#CBR Resets a Callback memory location
#CBS Enables or disables Callback security
#S Sets the Setup password
%T19,0, Configures the country code
&V Displays all current settings
&W Stores the current configuration
&Z Sets a Callback dialing string
AT Attention
I19 Displays current country code configuration
O Restores the remote session to data mode
S9 Sets the remote configuration escape character value
S9=0 Disables remote configuration
Z Resets the modem with the new configuration
Setting the Setup password
The AT#S= command is used to set the Setup password. The password may be 1 to 8 characters and is
case sensitive.
The default Setup password is ‘MTSMODEM’.
NOTE: For security, Server Technology recommends changing the predefined password prior to connection to your
network.
To set the Setup password:
After successfully logging into the modem with the Setup password, type at#s=, followed by the
password and press Enter.
Type atz and press Enter to reset the modem with the new settings.
Example
The following set the Setup password to “OpenUp”:
at#s=OpenUp<Enter>
OK
atz<Enter>
OK
Sentry Global Security Modem Operations • 5
Installation and Operations Manual
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