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RAD Data Communications - Authorized Distributor

ASM-20 Short Range Modem from RAD

The ASM-20 Short Range Modem operates synchronously or asynchronously (strapselectable) at full or half duplex over unconditioned lines. It has a range of up to 23 km (14 miles) and operates at data rates from 19.2 kbps up to 256 kbps. The use of conditioned diphase modulation (EUROCOM Std. D1) provides immunity to background noise, eliminates normal line distortion and enables efficient transmission and reception of serial data over twisted pair cable. Transmit timing is provided internally, or is derived externally from the data terminal or receive signal. Receive timing is regenerated from the data. When set to async mode, RAD ASM-20 performs async to sync conversion in compliance with ITU V.14 standard. Table 1 of product data sheet details the  rates relevant for sync and async. Rates higher than 115.2 kbps are supported in sync mode only.

ASM20-2/115/530 6012250000 ASM20-2/115/G.703/RJ 6012320000 ASM20-2/115/G703/TB 6012150000 ASM20-2/115/UTP 6012040000 ASM20-2/115/V24 6012020000 ASM20-2/115/V35 6012000000 ASM20-2/115/V36 6012340000 ASM20-2/115/X21 6012010000 ASM20-2/230/530 6012170000 ASM20-2/230/G.703/RJ 6012160000 ASM20-2/230/G703/TB 6012140000 ASM20-2/230/UTP 6012050000 ASM20-2/230/V24 6012120000 ASM20-2/230/V35 6012030000 ASM20-2/230/X21 6012110000 ASM20-2/24/UTP 6010060000 ASM20-2/48/UTP 6010070000 ASM20-2/48/V35 6012370000 ASM20-2/48/V36 6010190000 ASM20-2/48/X21 6012350000 ASM20-2R/530 6012070000 ASM20-2R/V24 6012130000 ASM20-2R/V35 6010280000 ASM20-2R/V36 6012090000 ASM20-2R/X21 6012100000

ASM-20 features V.54 diagnostic capabilities to perform local analog loopback, and local and remote digital loopback. The loops can be manually activated from the front panel or via control signals from the interface connector. In addition, ASM-20 incorporates a built-in Bit Error Rate Tester (BERT) to enable complete testing of both modems and the line. A front panel switch  generates a pseudo-random test pattern (511 bits) according to ITU V.52, for testing end-to-end connectivity. An ERROR LED flashes when a bit error is detected.

ASM-20 is available as a desktop unit or as a card for the RAD ASM-MN-214 modem rack. The rack can carry up to 14 ASM-20 cards and is supplied with 25-pin D-type connectors.
ASM20-2/115/530 6012250000 ASM20-2/115/G.703/RJ 6012320000 ASM20-2/115/G703/TB 6012150000 ASM20-2/115/UTP 6012040000 ASM20-2/115/V24 6012020000 ASM20-2/115/V35 6012000000 ASM20-2/115/V36 6012340000 ASM20-2/115/X21 6012010000 ASM20-2/230/530 6012170000 ASM20-2/230/G.703/RJ 6012160000 ASM20-2/230/G703/TB 6012140000 ASM20-2/230/UTP 6012050000 ASM20-2/230/V24 6012120000 ASM20-2/230/V35 6012030000 ASM20-2/230/X21 6012110000 ASM20-2/24/UTP 6010060000 ASM20-2/48/UTP 6010070000 ASM20-2/48/V35 6012370000 ASM20-2/48/V36 6010190000 ASM20-2/48/X21 6012350000 ASM20-2R/530 6012070000 ASM20-2R/V24 6012130000 ASM20-2R/V35 6010280000 ASM20-2R/V36 6012090000 ASM20-2R/X21 6012100000  application

ASM-20 Short Range Modem product data sheet (pdf)

Optional hardware is available for mounting one or two standalone RAD ASM-20 units in a 19 rack.

Commonly ordered ASM-20 models:
ASM20-2/115/530 6012250000
ASM20-2/115/G.703/RJ 6012320000
ASM20-2/115/G703/TB 6012150000
ASM20-2/115/UTP 6012040000
ASM20-2/115/V24 6012020000
ASM20-2/115/V35 6012000000
ASM20-2/115/V36 6012340000
ASM20-2/115/X21 6012010000
ASM20-2/230/530 6012170000
ASM20-2/230/G.703/RJ 6012160000
ASM20-2/230/G703/TB 6012140000
ASM20-2/230/UTP 6012050000
ASM20-2/230/V24 6012120000
ASM20-2/230/V35 6012030000
ASM20-2/230/X21 6012110000
ASM20-2/24/UTP 6010060000
ASM20-2/48/UTP 6010070000
ASM20-2/48/V35 6012370000
ASM20-2/48/V36 6010190000
ASM20-2/48/X21 6012350000
ASM20-2R/530 6012070000
ASM20-2R/V24 6012130000
ASM20-2R/V35 6010280000
ASM20-2R/V36 6012090000
ASM20-2R/X21 6012100000

Immediate price quote - Call 727-398-5252 or e-mail cs@bestdatasource.com

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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