FEATURES

LINE INTERFACE

? Each link can be configured as T1, E1 or J1

? Supports T1/E1/J1 long haul/short haul line interface

? HPS for 1+1 protection without external relays

? Receive sensitivity exceeds -36 dB @ 772 Hz and -43 dB @ 1024

Hz

? Selectable internal line termination impedance: 100 Ω (for T1), 75

Ω / 120 Ω (for E1) and 110 Ω (for J1)

? Supports AMI/B8ZS (for T1/J1) and AMI/HDB3 (for E1) line encoding/

decoding

? Provides T1/E1/J1 short haul pulse templates, long haul LBO (per

ANSI T1.403 and FCC68: 0 dB, -7.5 dB, -15 dB, -22 dB) and userprogrammable

arbitrary pulse template

? Supports G.772 non-intrusive monitoring

? Supports T1.102 line monitor

? Transmit line short-circuit detection and protection

? Separate Transmit and Receive Jitter Attenuators (2 per link)

? Indicates the interval between the write pointer and the read

pointer of the FIFO in JA

? Loss of signal indication with programmable thresholds according

to ITUT-T G.775, ETS 300 233 (E1) and ANSI T1.403 (T1/J1)

? Supports Analog Loopback, Digital Loopback and Remote Loopback

? Each receiver and transmitter can be individually powered down