Xerox FaxCentre 2121 Service Manual page 215

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