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Patton Electronics 463
G.703 Balun, 34 Mbps (75-Ohm to 120-Ohm)

Patton Model 463
G.703 Balun, 34 Mbps (75-Ohm to 120-Ohm)
Now You Can Solve Mismatches Between Coax and Twisted Pair G.703 Terminations!
Model 463 photo
  Features & Benefits
  • Data Rates to 34 Mbps
  • 75-hm Dual-Coax to 120-Ohm Twisted-Pair
  • Bi-Directional Signal Conversion
  • No AC Power or Batteries Needed
  • Male or Female Coax BNC Connectors Available
  • Ultra-Miniature Enclosure

The Patton Model 463 is a miniature G.703 balun that allows 75-ohm coax hardware to communicate with 120-ohm twisted-pair equipment.

The Model 463 specifically addresses the ONP requirement that European PTTs offer 120-ohm twisted-pair terminations to their customers. Some PTTs and private carriers are standardized on 75-ohm coax, or have customers whose CPE has only 75-ohm coax connections. The Model 463 presents a ready solution to this termination mismatch. Supporting E1 data rates to 8 Mbps, the Model 463 receives 75-ohm signals and converts them to 120-ohm for transmission over a network or reception by a CPE (see diagram below). The signals output by the Model 463 are scaled to match the pulse shape requirements specified by the CCITT G.703 standard.

Model 463 Application Diagram

The Model 463 can perform 120-ohm to 75-ohm signal conversion as well, giving the device a dual role.

Ordering Information

463M 34 Mbps, 75 Ohm Dual Coax (BNC male) to 120 Ohm UTP (RJ-45)
463F 34 Mbps, 75 Ohm Dual Coax (BNC female) to 120 Ohm UTP (RJ-45)



Transmission Line: CCITT G.703 (unstructured)
Data Rate: 34 Mbps
75-Ohm Connection: Dual coax BNC connectors, male or female (RG 59 or 2002 coax)
120-Ohm Connection: Shielded RJ-45 jack (internal terminal block included)
Power Supply: none required
Link-to-Data Isolation: 500 volts AC/DC
Operating Temperature: 0 to 50C (32 to 122F)
Dimensions: 2.7" (6.86 cm) L x 1.7" (4.32 cm) W x 0.8 (2.03 cm)



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