| No. | Part Name | Description |
|---|
| 601 | XRT83L34 | Single-Channel T1/E1/J1 Long-Haul, Short-Haul Line Interface Unit |
| 602 | XRT83L38 | Eight-Channel T1/E1/J1 Long-Haul, Short-Haul Line Interface Unit |
| 603 | XRT83SL28 | Eight-Channel E1 Short-Haul Line Interface Unit |
| 604 | XRT83SL30 | Multi-Channel T1/E1/J1 Line Interface Unit LIU |
| 605 | XRT83SL314 | 14-Channel T1/E1/J1 Line Interface Unit |
| 606 | XRT83SL34 | Multi-Channel T1/E1/J1 Line Interface Unit LIU |
| 607 | XRT83SL38 | Multi-Channel T1/E1/J1 Line Interface Unit LIU |
| 608 | XRT84L38 | Octal T1/E1/J1 Framer |
| 609 | XRT85L61 | BITS (Building Integrated Timing Supply) Clock Extractor |
| 610 | XRT86L30 | Single T1/E1/J1 Framer/LIU Combo |
| 611 | XRT86L34 | Four-Channel T1/E1/J1 Framer and Line Interface Combination |
| 612 | XRT86L38 | Eight-Channel T1/E1/J1 Framer and Line Interface Combination |
| 613 | XRT91L81 | Single Chip, Highly Integrated 2.5 Gbps (OC-48) Transceiver |
| 614 | XRT94L33 | Multi-Channel, Multi-Function Device Aggregates 3 DS3/E3/STS-1 into OC3/STM-1 |
| 615 | XRT94L43 | SONET/SDH STS-12/STM-4 to E3/DS3/STS-1 Mapper/Demapper |
| 616 | XRT95L34 | Multi-Channel, Multi-Function SONET/SDH Framer |
| 617 | XRT95L34IV | OC-12/STM-4/ QUAD OC-3/STM-1 POS/ATM FRAMER WITH INTEGRATED CDRS |
| 618 | XRT95L51 | OC-48 ATM UNI/POS/Mapper IC |
| | |
