Single T1/E1/J1 Long Haul / Short Haul Transceiver

FEATURES
LINE INTERFACE
ï The device can be configured as T1, E1 or J1
ï Supports T1/E1/J1 long haul/short haul line interface
ï HPS for 1+1 protection without external relays
ï Receive sensitivity exceeds -36 dB @ 772 Hz and -43 dB @ 1024Hz
ï Selectable internal line termination impedance: 100 Ω(for T1), 75Ω/ 120 Ω(for E1) and 110 Ω(for J1)
ï Supports AMI/B8ZS (for T1/J1) and AMI/HDB3 (for E1) line encoding/decoding
ï 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 user programmable arbitrary pulse template
ï Supports T1.102 line monitor
ï Transmit line short-circuit detection and protection
ï Separate Transmit and Receive Jitter Attenuators (2 per link)
ï Indicates the interval between the write pointer and the read pointer of the FIFO in JA
ï Loss of signal indication with programmable thresholds according to ITUT-T G.775, ETS 300 233 (E1) and ANSI T1.403 (T1/J1)
ï Supports Analog Loopback, Digital Loopback and Remote Loop back
ï The receiver and transmitter can be individually powered down

FRAMER
ï The device can be configured as T1, E1 or J1
ï Frame alignment/generation for T1 (per ITU-T G.704, TA-TSY-000278, TR-TSY-000008), E1 (per ITU-T .704), J1 (per JT G.704) and un-framed mode
ï Supports T1/J1 Super Frame and Extended Super Frame, T1 Digital Multiplexer and Switch Line Carrier - 96, E1 CRC Multi-frame and Signaling Multi-frame
ï Signaling extraction/insertion for CAS and RBS signaling
ï Provides programmable systeminterface supporting Mitel^TM ST-bus, AT&T^TM CHI and MVIP bus, 8.192 Mb/s multiplexed bus and 1.544 Mb/s or 2.048 Mb/s non-multiplexed bus
ï Three HDLC controllers withseparate 128-byte transmit and receive FIFOs per controller
ï Supports Signaling System #7 (SS7)
ï Programmable bit insertion  and bit inversion on per channel/timeslot basis
ï Provides Bit Oriented Message (BOM) generation and detection
ï Provides Automatic Performance Report Message (APRM) generation
ï Detects and generates alarms (AIS, RAI)
ï Provides performance monitor to count Bipolar Violation error, Excess Zero error, CRC error, framing bit error, far end CRC error, out of frame and change of framing alignment position
ï Supports System Loopback, Payload Loopback, Digital Loopback and Inband Loopback
ï Detects and generates selectable PRBS and QRSS

GENERAL
ï Flexible reference clock (Nx 1.544 MHz or N x 2.048 MHz)(0 ï JTAG boundary scan
ï 3.3 V I/O with 5 V tolerant inputs
ï Low power consumption (Typical 190 mW)
ï 3.3 V and 1.8 V power supply
ï 80-pin TQFP package

APPLICATIONS
ï C.O, PABX, ISDN PRI
ï Wireless Base Stations
ï T1/E1/J1 ATM Gateways, Multiplexer
ï T1/E1/J1 Access Networks
ï LAN/WAN Router
ï Digital Cross Connect
ï SONET/SDH Add/Drop Equipment