XRT5997
Seven-Channel E1 Line Interface Unit (Exar Corporation)
XRT59L91
Single-Chip E1 Line Interface Unit (Exar Corporation)
XRT59L921
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT (Exar Corporation)
XRT5683A
PCM Line Interface Chip (Exar Corporation)
XRT56L22
Low Power Repeater/Receiver (Exar Corporation)
XRT56L85
Low Power PCM Line Interface (Exar Corporation)
XRT5894
Four-Channel E1 Line Interface (Exar Corporation)
XRT5897
Seven-Channel E1 Line Interface (Exar Corporation)
XRT-6164
Digital Line Interface Transceiver (Exar Corporation)
XRT-6164CD
Digital Line Interface Transceiver (Exar Corporation)