Security Modem
Industrial Grade Modem for Secured Dial-up Applications
The DCE SM9256/SEC and SM9234/SEC
industrial grade security modems are designed and
manufactured for secured communications over dial-up or
public switched telephone networks (PSTN). The SM9256/SEC
and SM9234/SEC utilize industry’s latest V.92 and V.34 modem
technologies to deliver outstanding features, performance,
and reliability in one cost-effective solution. The modems
support RS-232 or RS-485 serial interfaces. The SM9256/SEC
and SM9234D/SEC modems provide users with DCE’s proprietary
powerful security features to protect against unwanted
access by unauthorized callers. The modem is ideal for
industrial and commercial communication applications
including secured control systems, SCADA systems, corporate
remote access servers, alarm systems, and critical network
controlled access.
Key Features:
• Worldwide modem standard support:
V92/V34/V32bis/V32/V22bis/V22/V21 compatible
• Industry’s latest standard data compressions and error
corrections
• Asynchronous DTE operation from 300 to 115200 bps.
• Operate over POTS lines or PSTN voice-band networks
• Selectable security features to protect against unwanted
callers:
User ID and Password screening before access are granted
Call-back security after verification of caller’s user ID
and password
Answer only to callers with registered I.D. stored in the
security modems
• Provide network administrator to login locally or remotely
to maintain user ID, password and call-back
phone numbers, and to perform configuration changes.
• Provide data base for up to 20 registered users for
security with user’s ID, password, call back
number, and caller ID for verification
• Isolated AC or DC-DC power supply for standard AC,
battery, or solar powered systems
• Build-in LEDs and push-button switch for local or remote
diagnostics
• Operate over wide range temperature of -40oC to +85oC
• Supports RS-232, RS-485 and RS-422 interface
• Small enclosure design for desk-top, DIN rail mounting or
wall mount applications
• Plug-in modules for Motorola/UDS modem racks in central
site installations
Ordering Information
SM9256/SEC Standalone, V92/V34/V32bis dial line modem
100-264VAC, 100-400VDC
SM9256/SEC-DC Standalone, V92/V34/V32bis dial line modem,
10-60VDC (isolated)
SM9234/SEC Standalone, V34/V32bis dial line modem
100-264VAC, 100-400VDC
SM9234/SEC-DC Standalone, V34/V32bis dial line modem,
10-60VDC (isolated)
SM9256/SEC-RM Rack mount card for RM16 nest, same as
SM9256/SEC
SM9234/SEC-RM Rack mount card for RM16 nest, same as
SM9234SEC
EN2-KIT-DIN DIN Rail Mounting Kit for standalone unit
EN2-KIT-WM Wall or panel mounting kit for standalone unit
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