Black Box MT1430A-SM-SC T1/E1 Multiplexor with Fiber Extension - Singlemode, 30-km, Dual SC, 4-Port

Black Box lists the MT1430A-SM-SC as a T1/E1 Multiplexor with Fiber Extension: Singlemode, 30-km, Dual SC, 4-Port. Connectors are T1/E1: (4) RJ48. Ideal for extending T1 connections over fiber to remote PBX equipment. Local loopback on both the copper and fiber ports.

Power: 100-240 VAC, 50-60 Hz, autosensing. It measures 1.9-in. H x 6.7-in. W x 5.5-in. D (4.8 x 17 x 14-cm) and weighs 2.5-lb. (1.14-kg). Front-panel indication: LEDs: Power, Test, RJ-48 Link, Fiber Optic Link.