Dce Cable Pinouts - 3Com NETBuilder SI Using Manual

178 A D: C
PPENDIX ONNECTORS AND
RS-232 DCE Cable
Pinouts
C
ABLES
This cable connects the bridge/router to an RS-232 DTE.
Figure 32 Flex-WAN and RS-232 DCE Connectors
To SuperStack II NETBuilder
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 26 RS-232 DCE Cable Pinouts
Flex-WAN Connector
Signal Pin
DCD/LL 33
DSR/DTR 34
CTS/RTS 35
RxD/TxD 36
RxC/TxCE 38
TxCE/TxC 39
Nil/RxC 40
TxD/RxD 41
RTS/CTS 42
DTR/DSR 43
LL/DCD 44
Circuit Ground 45
Shield Ground 46
Shorting Group 1 50
51
* Unused twisted wires of a twisted pair should be connected to Shield Ground. In this cable
this is one wire of each of the twisted pairs 1 to 12.
1
14 15 16 17 18 19 20 21 22 23 24 25
25-pin female connector
RS-232 DCE
Connector
Direction Pin Signal
18 LTST
20 DTR
4 RTS
2 TxD
24 TxCE
15 TxC
17 RxC
3 RxD
5 CTS
6 DSR
8 DCD
- 7 Circuit Ground
Cable Shield 1 Shield Ground
- - -
To DTE
2 3 4 5 6 7 8 9 10 11 12 13
Twisted Pair
1
2
3
4
5
6
7
8
9
10
11
12
-
-
*