MD400-E1/T1 Line Extension / Carrier Modem
This product is no longer available from Data Comm for Business

Extend a full T1 / E1 over Copper Pair up to six miles (10.2 KM) or fractional T1 / E1 up to ten miles (17.2 KM) The MD400-E1T1 is a new generation, cost effective G.SHDSL modem that extends a T1/E1 interface over very long distances and provides infrastructure cost optimizations.

DESCRIPTION

The MD-400-E1T1 transports a T1 or E1 interface for voice and data service over longer distances than standard T1 DSX interfaces.

The MD-400-E1T1 embeds the latest G.SHDSL technologies that are approved by the ITU-T, ETSI and ANSI bodies for transporting E1/T1 services over copper pairs. SHDSL spectrum density is compatible with other voice and ADSL services when sharing the same multiple pair cables.

The MD-400-E1T1 operates on either one or two copper pairs to provide longer reach. Distances can also be raised up in inserting SHDL repeaters in the copper line.

The MD-400-E1T1 transports E1 or T1 interface, but also it performs Nx 64 kbps adaptive rate to provide to best throughput / distance ratio when transporting fractional E1 or T1 as the SHDSL reach increases for lower rates. The MD-400-E1T1 offers high performances in most line conditions and ensures stable transmission quality thanks to a user defined Signal to Noise Margin.

The terminal interface of the MD400E1T1 can be set as E1 or T1, full or in fractional mode with or without CRC. N fractional mode, the first extracted timeslot can be defined. The receiver sensitivity can be set for long or short haul.

The MD-400-E1T1 is easy to integrate in any application thanks to a choice of power supply options. It can be powered from a mains adapter or from a 48 Vdc battery.

The MD-400-E1T1 comes in a compact enclosure with DIN rail and wall mounting capabilities.

The MD-400-E1T1 comes with both a CO and CPE factory configurations that makes it a ready to run solution for clear channel operations. All parameters can be user defined through an intuitive menu interface. The MD-400-E1T1 can also be remotely controlled through the EOC channel as defined in the G.991.2 standard.

The MD-400-E1T1 does not support unchannelized (clear channel) T1.

SPECIFICATIONS

General

SHDSL Interface

• 1 or 2 twisted copper pair with end to end continuity
• ITU-T G.SHDSL, G.HS, G.991.2, and ETS 101 524 compliant
• Coding TC-PAM 16
• Spectrum density : Annex A, B
• Connector : RJ45
• Output level : +13 dBm
• Data rate on 1 pair : 64 Kbps to 2.048 Mbps
• Data rate on 2 pairs : 128 kbps to 2.048 Mbps
• Training delay : 19 s at 2 Mbps

T1 Interface

• ANSI T1.403
• Coding : AMI, B8ZS
• Rate : 1.544 Mbps +/- 50 ppm
• G704 : 1 to 24 TS, Nx 64 Kbps
• Framing : D4, ESF
• CRC6 control
• Clocking : internal, T1 codirectional
• Phase jitter : G.823
• Sensitivity : long haul / short haul, -36 / -13 dBm
• Line Build Out : DSX-1 and CSU
• 1 to 24 contiguous timeslots extraction from a first defined timeslot
• Impedance : 100 Ohms
• Connector : RJ45, RJ48c
• Insulation : 1,500 V

E1 Interace

• Transparent G703 or framed G704
• G703 : HDB3, 2.048 Mbps +/- 50 ppm
• G704 : 1 to 31 TS selection, PCM30, PCM31, PCM31C
• CRC4 control
• Clocking : internal, E1 codirectional
• Phase jitter : G.823
• Sensitivity : long haul/short haul, -43/-12 to 32 contiguous timeslots extraction from first defined timeslot
• Impedance : 75 Ohms and 120 Ohms
• Connector : RJ45 / RJ48c and BNC
• Insulation : 1,500 V

Distance vs Speed Chart

Indicators

• Power / running
• CD1 : synchronization of SHDSL pair 1
• CD2 : synchronization of SHDSL pair 2
• DTE : synchronization of the E1/T1 interface
• Test : test indicator
• Alarm : default on SHDSL or E1/T1 interface

Management

• 3 positions switch : clear channel LTU[E1] (CO) clear channel[E1] NTU (CPE), user configuration
• Console port : RJ45, 19.2 Kbps, 8N1, VT10 intuitive menus for easy configuration and diagnostics
• V54 loop test
• 24 hour G821 statistics and diagnostics

Physical

• Size : WxLxH - 7 x 5 x 1 5/8 in ( 170 x 120 x 41 mm)
• Weight : 3/4 pound (0.35 Kg)
• Operating temperature : -10 to +55 °C, 10 to 90 % non condensing
• Storage temperature : -20 to +60 °C
• Designed in compliance with EN-60950, EN-55022, EN-55024
• AC power adapter : 110-230 Vac, 50-60 Hz
• DC power input : 36-72 Vdc input
• Power consumption : 3 W (DC) or 5 W (AC)

How to Order

Data Comm for Business Inc. 2949 County Road 1000 E Dewey, Il 61840	Voice: 217-897-6600 Toll Free: 800-4-DCB-NET Toll Free: 800-432-2638	Email: Contact Page Web: www.dcbnet.com Fax: 217-897-8023
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