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ASMi-31 2-wire full-duplex IDSL Sync/Async modem

ASMi-31 is a 2-wire full-duplex IDSL modem with remote management that extends data transmission to 7.0 km (4.3 miles) irrespective of data rate. RAD ASMi-31 operates synchronously or asynchronously at user-selectable data rates from 1.2 to 128 kbps. The ASMi-31 modem uses 2B1Q line code and adaptive equalizers to provide immunity from background noise, eliminate normal line distortion, and enable efficient transmission over 2-wire twisted pair cables.

ASMi-31 ASMI-31-2/CB/V24 6460570000 ASMI-31-2/M/115/V24 6460760000 ASMI-31-2/M/115/V35 6460160000 ASMI-31-2/M/230/G703/TB 6460180000 ASMI-31-2/M/230/V24 6460190000 ASMI-31-2/M/48/V24 6460890000 ASMI-31-2/M/48/V24/V110 6460950000 ASMI-31-2/S/115/V24 6460440000 ASMI-31-2/S/230/G703/TB 6460470000 ASMI-31/CQB/V24/RJ 6410230000

ASMi-31 is available as a “master” or “slave” standalone unit. The master ASMi-31 modem includes a front panel LCD and control buttons. The slave modem has a blank front panel with a special 20-pin connector for a portable control unit (PCU) connection.

The master ASMi-31 modem provides full-duplex inband management of the remote unit. Management data is transmitted over the D-channel to ensure simultaneous configuration of the local and remote units, activation of real-time alerts on system faASMi-31 supports a wide range of digital interfaces: V.24/RS-232, V.35, X.21, RS-530, V.36/RS-449 and G.703 Codirectional (64 kbps). In addition, the ASMi-31 supports a built-in Ethernet bridge (IR-ETH) and IP router (IR-IP) to allow LAN-to-LAN connectivity using IDSL technology.

ASMi-31 can be managed via the front panel buttons and LCD (in the master unit).

The ASMi-31 clock source depends on the modem's functional mode (master or slave):
Master clock: INT derived from internal oscillator or EXT derived from the DTE interface
Slave clock: RCV (recovered from line signal).
The user-selectable carrier may be continuous or controlled by RTS for passing control signals end-to-end.

ASMi-31 has wide diagnostic capabilities that include the following test options:
V.54 local analog and remote digital loopbacks
BER testing per V.52.
Line interface circuitry protects against lightning and power surges.

ASMi-31 ASMI-31-2/CB/V24 6460570000 ASMI-31-2/M/115/V24 6460760000 ASMI-31-2/M/115/V35 6460160000 ASMI-31-2/M/230/G703/TB 6460180000 ASMI-31-2/M/230/V24 6460190000 ASMI-31-2/M/48/V24 6460890000 ASMI-31-2/M/48/V24/V110 6460950000 ASMI-31-2/S/115/V24 6460440000 ASMI-31-2/S/230/G703/TB 6460470000 ASMI-31/CQB/V24/RJ 6410230000 Application

ASMi-31 2-wire full-duplex IDSL Sync / Async modem product data sheet (pdf)

Some of the ASMi-31 models include:
ASMI-31-2/CB/V24 6460570000
ASMI-31-2/M/115/V24 6460760000
ASMI-31-2/M/115/V35 6460160000
ASMI-31-2/M/230/G703/TB 6460180000
ASMI-31-2/M/230/V24 6460190000
ASMI-31-2/M/48/V24 6460890000
ASMI-31-2/M/48/V24/V110 6460950000
ASMI-31-2/S/115/V24 6460440000
ASMI-31-2/S/230/G703/TB 6460470000
ASMI-31/CQB/V24/RJ 6410230000

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Other RAD sections of interest:
RAD Accessories, RAD ATM products, RAD Baseband modems and last mile access, RAD Cables & Misc, RAD Digital Service Access Devices ( FCD ), RAD Fiber Optic modems and Converters, RAD IP and Ethernet Access, RAD Kilomux Data, Voice, Fax and LAN integrating Multiplexers, RAD LRS Modem rackRAD MegaplexRAD Networks Management, RAD Optimux Fiber Multiplexers, RAD Rate and Interface Converters, RAD Sharing Devices, RAD Short Range ModemsRAD T1/E1 Digital Cross Connects ( DACS ), RAD T1/E1 Digital Cross Connect (DACS) for single E1 / T1 applications, RAD TDMoIP, RAD Voice Interface Converters, RAD Voice Trunking Gateway

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Last modified: May 15, 2017