Dce Cable Pinouts - 3Com 3C8S5007 - SuperStack II PathBuilder S500 Switch User Manual

100 A C: C
PPENDIX ONNECTORS AND
RS-449 DCE Cable
Pinouts
C
ABLES
Table 24 RS-449 DTE Cable Pinouts (continued)
Flex-WAN Connector
Signal Pin
Circuit Ground 45
Shield Ground 46
Shorting Group 1 48
49
Shorting Group 2 51
52
This cable connects the switch to an RS-449 DTE.
Figure 38 Flex-WAN and RS-449 DCE Connectors
To PathBuilder switch
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46
60-pin Flex-WAN male connector
Table 25 RS-449 DCE Cable Pinouts
Flex-WAN Connector
Signal Pin
CTS/RTS+ 1
CTS/RTS- 2
DSR/DTR+ 3
DSR/DTR- 4
DCD/DCD+ 5
DCD/DCD- 6
DTR/DSR+ 7
DTR/DSR- 8
RTS/CTS+ 9
RTS/CTS- 10
TxD/RxD+ 11
TxD/RxD- 12
TxCE/TxC+ 13
RS-449 DTE Connector
Direction Pin
37
Cable Shield 1
- -
1 2 3
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
37-pin female connector
RS-449 DCE Connector
Direction Pin
7
25
12
30
13
31
11
29
9
27
6
24
5
Signal Twisted Pair
Circuit
Ground
Shield
Ground
-
To DTE
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Signal Twisted Pair
RS+ 1
RS-
TR+ 2
TR-
RR+ 3
RR-
DM+ 4
DM-
CS+ 5
CS-
RD+ 6
RD-
ST+ 7
-
-
-