61200290L1-1G B-1
APPENDIX B, PINOUTS
Appendix BPinouts

Tabl e B -1, Ta ble B- 2, Tab le B -3 , and Tabl e B -4 list the pin assignments for the connectors located on the

MX2800. For more information on these connectors, refer to Section 2, Installation and Operation.

Table B-1. Craft Port Pin Assignments
RJ Pin# DB-9 Function Direction
15GND
27RTSI
33TDI
46DSRO
52RDO
68CTS*O
74DTRI
81DCDO
- 9 not used -
* Used for hardware flow control.
Table B-2. LAN Port Pin Assignments
Pin Name Description
1 TD+ The positive signal for the TD differential pair. This signal contains
the serial output data stream transmitted onto the network.
2 TD- The negative signal for the TD differential pair (pins 1 and 2).
3 RD+ The positive signal for the RD differential pair. This signal contains
the serial input data stream received from the network.
4, 5 N/A not used
6 RD- The negative signal for the RD differential pair (pins 3 and 6).
7, 8 N/A not used