This number may be obtained from Patton Electronics Technical Support at (301) 975-1007; http://www.patton.com: or, The Patton 464RC & 466RC G.703 balun panel matches 16 sets of support@patton.com. dual 75 ohm coax connections to 120 ohm twisted pair connections.
RJ-45 ports on the front of the unit. Figure 3. Model 464RC/466RC rear panel. Remove screws from sides of unit. 3.3.1 Connecting the RJ-45 Ports The number on each RJ-45 port corresponds to the BNC pair numbers on the front of the unit.
The 120 Ohm balanced pairs can be accessed via the 64 pin AMP Champ connector. The pins on this connector are wired directly to the PATTON ELECTRONICS MODEL 464RC & 466RC RJ-45 ports. The AMP Champ pinout is shown below.