Patton electronic 2073RC - Manual (Page 20)

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Note Pin-out requirements for tail circuit applications vary between
equipment manufacturers. If you have any questions about a
specific installation, please contact Patton Electronics Technical
Support.
4.5 CONNECTING TO A G.703/64 KBPS NETWORK
The Network Line Interface is an 8-position keyed modular jack config-
ured as an RJ-48C (see Figure 11).
Figure 11. NetLink-E1 twisted-pair interface
Note If the 2073RC is being used for private short-range modem
applications, the twisted-pair cable connected to its port will
need to be a cross-over cable.
5 TX data (RING)
1 RX data (TIP)
2 RX data (RING)
3 (no connection)
4 TX data (TIP)
6 (no connection)
7 (no connection)
8 (no connection)
1
2
3
4
5
6
7
8
From network
To network