Product Name: B2106 G.703 BALUN, 2 Mbps, 75-OHM/120-OHM Product Code: CVT-703-606001 Description: Transmission: CCITT G.703 Data Rates to 2.048 Mbps 75 Ohm Dual Coax to 120 Ohm Twisted Pair Bi-Directional Signal Conversion 75 Ohm Connection: Dual coax BNC connectors, female 120 Ohm Connection: Shielded RJ-45 jack (standard) or External Terminal Jack Link-to-Data Isolation: 500 volts AC/DC Compact design No AC Power or Batteries Needed Operating Temperature: 0 C to 50 C Dimensions: 76.6 mm(L) x 43.6 mm(W) x 21.6 mm(D)