Sat, 13 Apr 24 06:22 am EST    Languages: Español  Français  Português
Extranet Login | Site Map | Contact Us

Our Coordinates: Lat 42.75 N, Long 71.85 W  

Products xDSL Modems & Line Drivers X.21/V.35/RS-530/E1/T1/Ethernet SHDSL Modem

ASMi-52 - 2/4-Wire SHDSL Modem


Product Summary

The ASMi-52 SHDSL modem is a dedicated managed SHDSL modem that operates in full duplex mode over 2-wire or 4-wires lines. Multiple data rates are supported. The ASMi-52 SHDSL modem incorporates TC-PAM technology, extending the transmission range and enabling carriers to reach more customers at a lower price. The ASMi-52 SHDSL modem come with a variety of interface options. Monitoring, control and diagnostics of local and remote units are available via a supervisory port. The attractively priced ASMi-52L SHDSL model is offered for applications that require only a single user port. 


  • Operates over 2-wire and 4-wire lines, enabling service over any copper infrastructure      
  • Utilizes TC-PAM line coding for extending the operation range to 9.5 km (5.9 miles) and eliminating the need for repeaters      
  • Provides extensive diagnostics, including loopbacks, SHDSL and E1 performance monitoring      
  • End to end management and supervision      
  • Reliable performance over poor quality or noisy lines      
  • Automatic configuration allows plug and play installation 

Quick Specs

  • Comply with ITU-T G.991.2 and ETSI 101524 standards for SHDSL     
  • Operates at multiple data rates between 64 kbps and 4608 kbps enabling single-platform system upgrades     
  • Operates opposite LRS-24, LS-52, DXC, and MP modules as well as third party equipment     
  • Features V.35, X.21, RS-530 or G.703/G.704 E1/T1 DTE interfaces     
  • Managed by SNMP, Telnet or ASCII terminal     
  • Available as a chassis card, 1U half 19” enclosure, or rail mountbridge or router
Further Product Information
The ASMi-52 SHDSL modem and ASMi-52L SHDSL modem use TC PAM-16 line coding SHDSL technology to extend the range of digital interfaces. These devices offer longer distances and variable data rates up to 2.3 Mbps over 2-wire and 4.6 Mbps over 4-wire.

ASMi-52 multiplexer version

The high-end ASMi-52 SHDSL modem model is available with a multiplexer capability, including two user ports. It can transmit combinations of V.35/X.21/RS-530 data, 10/100BaseT LAN and E1 traffic together over a single SHDSL link at a maximum data rate of 2.3 Mbps. The attractively priced ASMi-52L model is offered for applications that require only a single user port. 

The ASMi SHDSL modems extend the range of 2 Mbps data transmission up to 4 km (2.5 miles) over 2-wire cable and even farther over 4-wire cable. They support E1 and T1, V.35, X.21 and RS-530 data, Ethernet bridge, and IP router user interface options. The ASMi-52L SHDSL modem is also available with optional four 10/100BaseT user ports with an integral switch. All models are compatible with 2/4-wire repeaters, such as S-RPT, for supporting even longer-range applications.

They also work opposite LRS-52 SHDSL modem rack, the LRS-24 modem rack, DXC, and Megaplex SHDSL modules. Monitoring, control and diagnostics of local and remote units are available via a supervisory port. Standards compliance enables the ASMi modems to work opposite third-party TDM equipment that support the SHDSL standard.

The ASMi-52 SHDSL modem is available as a standalone unit or as a card for the LRS-24 19-inch rack with central SNMP management.

The ASMi-52 SHDSL modem is also available in a rugged metal enclosure designed for easy installation on standard cabinet rail mounts that meet the EN 50121-4 industry standard. 

The management connection to the standalone unit is via: 

• V.24/RS-232 port using SLIP protocol 

• Out-of-band Ethernet port (ASMi-52 only) 

• Dedicated timeslot using E1/T1 port (ASMi-52 only)

Easy Config accessory
Easy Config is a hand-held battery powered configuration accessory that enables the user to configure the ASMi-52 SHDSL modem from the RS-232 port without requiring a laptop or computer terminal. The ASMi-52 SHDSL modem configuration parameters appear on the Easy Config screen for instant viewing.

Automatic configuration from a downloaded file makes for fast and easy product installation. The ASMi modems can be managed using SNMP applications, such as RADview, Telnet or an ASCII terminal.

Easy Config accessory_0606


LAN and E1 over SHDSL
Download the ASMi-52 data sheet - PDF Version