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Synchronous Serial Interface
—
MC/Xi
61
The table below shows the pin assignments for the RJ-45 jack. Dual function
pins also show the jumper settings required for each function.
Table 14
MC/Xi+ (RS-422) Synchronous Port Pin Assignments
RJ-45 Pin
Signal
Name
Jumpers
1
CTS+
Clear To Send (+)
J1 Pins 1 & 2
RTC+
Receive/Transmit Clocks (+)
J1 Pins 2 & 3
2
CTS-
Clear To Send (-)
J1 Pins 1 & 2
RTC-
Receive/Transmit Clocks (-)
J1 Pins 2 & 3
3
GND
Chassis Ground
4
TxD+
Transmitted Data (+)
5
TxD-
Transmitted Data (-)
6
RxD+
Received Data (+)
7
RxD-
Received Data (-)
8
SG
Signal Ground
9
RTS+
Request To Send (+)
J2 Pins 1 & 2
TRC+
Transmit/Receive Clocks (+)
J2 Pins 2 & 3
10
RTS-
Request To Send (-)
J2 Pins 1 & 2
TRC-
Transmit/Receive Clocks (-)
J2 Pins 2 & 3
NOTE—Contact your DigiBoard sales representative for information regarding
software support for the MC/Xi+ synchronous port.