Telcordia (Bellcore) Standard TR/SR

4 ports RS-232/422/485 secure device server, 12-48V, w/ adapter

4 Port Terminal Device Server, US Plug, 3 in 1, 10/100M Ethernet, 12-48 VDC, w/o adapter

2 ports RS-232/422/485 secure device server, 12-48V, w/ adapter

2 Port Terminal Server, 3 in 1, 10/100M Ethernet, 12-48 VDC, -40 to 75°C

2 ports RS-232/422/485 secure device server, single mode Ethernet with SC connector, 12-48V, w/ adapter

2 Port Terminal Server, 3 in 1, 100FX Single Mode Fiber, SC Connector, 12-48VDC, -40 to 75°C