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  AEX-SHDSL
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AEX-SHDSL
SHDSL is considered a very efficient technology to provide broadband solution via twisted wire. It will be even more competitive than ADSL to meet the customers’ requirement for Internet and it brings synchronized high data rate both downstream and upstream.

SHDSL Unit (SHDSLU) provides the low speed interface for G.SHDSL signal transport. SHDSLU provides four N x 64Kbps time slot to/from 2016 time slot TSI (time Slot Interchange). It can arbitrarily aggregate/allocate 128 x 64Kbps data tributaries into/from 4 x E1. It map/demap these 4 x 2M signals into/from COMBUS STM1 payload and modulate this signal to be transported by SHDSL interface. The main functions of SHDSLU are described below:

 4 G. SHDSL ports, support symmetric data rate up to 2304Kbps
 16-TCPAM (or 2B1Q) line codes
 Range 3.7Km over 0.5mm for 2.312Mbps
 Provide local/remote facility/terminal loopback

Specifications
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Line interface: ETSI (TS 101524), ITU-T G.991.2 (Annex A and Annex B) compliant
Line rate: 64~2,312Kbps
Symbol rate: (Data rate+8000)/3 symbol/sec.
Code: 16-TCPAM (or 2B1Q)
Impedance: 135
Range: 3.7Km over 0.5mm for 2.312Mbps
Transmit signal power: >13.5dB
PRBS generator and BER test provided
Provided EOC (comply with section 9.5 of ITU-T Rec. G.991.2.) for OAM data and signals Transmission, including configuration, fault message and performance monitoring data, and loopback control signal, etc.
Provide SHDSL line carrier detection, signal level indication, CRC and noise margin monitor.
Provisioning parameters: loop attenuation threshold, worst case SNR target margin, performance Parameter threshold, SHDSL power backoff, data rate/line rate and 2M frame format, line code, etc.
Test capability: Near end loopback (NLB), local loopback, remote loopback (RLB) and Remote payload loopback (PLB). PLB of V.356 interface can be activated and deactivated by in band signal which procedure and codewords comply with ITU-T V.54.
Wire-wrapped or RJ11, RJ45, DB-9 line connector customer request
Power consumption:Active: <12Watt
Standby: <9Watt
Power consumption: 6Watt
Operation environment:Humidity: 5-95% without condensation
Temperature: -10oC ~ 70oC

 

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