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 MitelTM ST-bus, AT&TTM 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