Справочник Пользователя для 3com SuperStack II
Serial Connectors and Flex-WAN Cables
177
RS-232 DTE Cable
Pinouts
This cable connects the bridge/router to an RS-232 DCE.
Figure 31 Flex-WAN and RS-232 DTE Connectors
.
Table 25 RS-232 DTE Cable Pinouts
Flex-WAN Connector
RS-232 DTE Connector
Signal
Pin
Direction
Pin
Signal
Twisted Pair
*
* 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.
DCD/LL
33
←
8
DCD
1
DSR/DTR
34
←
6
DSR
2
CTS/RTS
35
←
5
CTS
3
RxD/TxD
36
←
3
RxD
4
TxC/Nil
37
←
15
TxC
5
RxC/TxCE
38
←
17
RxC
6
TxCE/TxC
39
→
24
TxCE
7
TxD/RxD
41
→
2
TxD
8
RTS/CTS
42
→
4
RTS
9
DTR/DSR
43
→
20
DTR
10
LL/DCD
44
→
18
LTST
11
Circuit Ground
45
-
7
Circuit Ground
12
Shield Ground
46
Cable Shield 1
Shield Ground
-
Shorting Group 1
50
51
52
51
52
-
-
-
-
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
60-pin Flex-WAN male connector
25-pin male connector
To SuperStack II NETBuilder
To DCE
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