28-channel dual bus high density mapper.
* 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 applicatio.
(DS1 mapped to/from VT2/TU-12s)
* Selectable HDB3/B8ZS/AMI positive/negative rail, NRZ, or VT/TU interfaces per chan.
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 and from VT1.5/TU-11s and VT2/TU-12s carried in an STM-1 VC-4 or ST.
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