Network; Connect Dual Coaxial Cable (75 Ohm) To G.703/G.704 Network; Making Interface Connections - Patton electronics IM1/K User Manual

5.3 MAKING INTERFACE CONNECTIONS

The Patton K Module may be connected to G.703/G.704 ports
using a single 120 ohm RJ-48C or a dual 75 ohm coax (BNC). The
Patton K Module rear panels and the location of these connectors are
show below in Figure 4.

Network

TX
TX
RX
Figure 4: K Module Rear Panels, Showing Location of Connectors
5.3.1 Connect Twisted Pair (120 ohm) to G.703/G.704 Network
The Patton K Module is equipped with a single RJ-48C jack for
connections to a 120 ohm twisted pair G.703/G.704 network interface.
If your G.703/G.704 network terminates via RJ-48C, use the diagram
below and the table on the following page to make the proper connec-
tions. The connector pinout and signals are shown in Figure 5, below.
Use the following connection diagram to connect the 120 ohm
G.703/G.704 network channel.
(No Connection) 8
(No Connection) 7
(No Connection) 6
(TX+) 5
(TX-) 4
(No Connection) 3
(RX-) 2
(RX+) 1
Figure 5: 120 ohm RJ-48C G.703/G.704 Interface
RX
8
7
6
5
4
3
2
1
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RJ-48C Cable (8-Wire)
K Module
SIGNAL PIN#
RX+ 1-----------------------TX+
RX- 2-----------------------TX-
TX+ 5-----------------------RX+
TX- 4-----------------------RX
Shield 3-----------------------Shield
Shield 6-----------------------Shield

5.3.2 Connect Dual Coaxial Cable (75 ohm) to G.703/G.704 Network

The Patton K Module is also equipped with dual female BNCs (TX
and RX) for connection to a 75 ohm dual coax G.703/G.704 network
interface. If your G.703/G.704 network terminates via dual coaxial
cable, use the diagram below to make the proper connections. The
connector pinout and signals are shown in Figure 6, below.
Network
TX
TX
(Data TO
G.703/G.704
Network)
TX
RX
Figure 6: 75 ohm Dual Coaxial G.703 Interface
NOTE: The outer conductor of the coax cables are isolated
from system earth ground.
G.703/G.704
NETWORK SIGNAL
RX
RX
(Data FROM
G.703/G.704
Network)
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