3Com 3C8S5007 - SuperStack II PathBuilder S500 Switch User Manual page 101

Table 25 RS-449 DCE Cable Pinouts (continued)
Flex-WAN Connector
Signal Pin
TxCE/TxC- 14
Circuit Ground 15
Circuit Ground 16
TxC/RxC- 23
TxC/RxC+ 24
RxC/TxCE- 25
RxC/TxCE+ 26
RxD/TxD- 27
RxD/TxD+ 28
Nil/LL 29
Circuit Ground 30
Shield Ground 46
Shorting Group 48
1 49
Flex-WAN Serial Connectors and Serial Cables
RS-449 DCE Connector
Direction Pin
23
- 19
- 20
26
8
35
17
22
4
10
- 37
Cable Shield 1
- -
Signal Twisted Pair
ST-
SGRC 8
SGRC
RT- 9
RT+
TT- 10
TT+
SD- 11
SD+
LLSC 12
Ground
Shield -
Ground
- -
101