APC Isolate - Transceiver - 10Base-T - 9 pin D-Sub (DB-9) / 9 pin D-Sub (DB-9) - up to 100 m - for P/N: SRV1KA-TW, SRV1KI-TW, SRV2KA-TW, SRV2KI-TW, SRV3KA-TW, SRV3KI-TW, SRV6KI-TW