8-Port T1/E1/J1 Transceiver
Ethernet Over PDH Mapping Devices
Single/Dual/Quad/Octal TDM-Over-Packet Chip
4-Port T1/E1/J1 Transceiver
5V T1/J1 Line Interface Unit
3.3V DS21352 and 5V DS21552 T1 Single Chip Transceivers
