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