Wiring Diagrams
FaxCentre 2121/2121L 11/06 7-9
LAN: Local Area Network Interface
STN: Switched Telephone Network Interface
Table 7: Local Area Network Interface
Pin Signal Input/Output Use
1 TXP O Network transmission differential pair
2 TXN O Network transmission differential pair
3 RXP I Network reception differential pair
4 NC - Not connected
5 NC - Not connected
6 RXN I Network reception differential pair
7 NC - Not connected
8 NC - Not connected
Table 8: Switched Telephone Network Interface
Pin Signal Input/Output Use
1 NC - Not connected
2 R2 I/O Loopback L1
3 L2 I/O Telephone line pair
4 L1 I/O Telephone line pair
5 R1 I/O Loopback L2
6 NC - Not connected
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