TXC04222

TEMx28 Device 28 Channel Dual Bus High Density Mapper TXC-04222 DATA SHEET FEATURES Add/drop up to 28 E1, DS1, or VT/TU payloads from two add and two drop STM-1/VC4, STS-3 buses Add bus and drop bus timing modes Cross mapping applications (DS1 mapped to/from VT2/TU-12s) Selectable HDB3/B8ZS/AMI positive/negative rail, NRZ, or VT/TU interfaces per channel H4 multiframe option in place of Telecom Bus V1 pulse Digital desynchronizer Drop buses are monitored for parity, loss of clock, and upstream AIS Performance counters for pointer movements, BIP-2 errors, REI and coding violations Single-bit or three-bit RDI operation per channel Tandem connection capability per ETSI standards J2 trail trace comparison option Processor access to H1/H2, H4 overhead bytes, and V1/V2 and V4 bytes Selectable positive, negative or positive/negative alarm transition interrupt options Line and facility loopbacks, generation of BIP-2 and REI errors, PRBS generator and analyzer per channel Polling registers and global summary alarm status One second measurements: counters and alarms Software device driver is provided IEEE 1149.1 standard boundary scan +3.3 V and 1.8 V power supplies, 5 V tolerant I/O leads 376-lead plastic ball grid array (PBGA) package (23 mm x 23 mm) DESCRIPTION The TEMx28 device is designed for add/drop multiplexer, terminal multiplexer, and dual and single unidirectional ring applications. Up to 28 E1, DS1, or VT/TU payloads are mapped to ...