3com NETBuilder SI Manual De Usuario
184
A
PPENDIX
D: C
ONNECTORS
AND
C
ABLES
RS-449 DCE Cable
Pinouts
This cable connects the bridge/router to an RS-449 DTE.
Figure 38 Flex-WAN and RS-449 DCE Connectors
LL/DCD
44
→
10
LLSC
12
Circuit Ground
45
−
37
Circuit
Ground
Ground
Shield Ground
46
Cable Shield 1
Shield
Ground
Ground
-
Shorting Group 1
48
49
49
-
-
-
-
Shorting Group 2
51
52
52
-
Table 31 RS-449 DTE Cable Pinouts (continued)
Flex-WAN Connector
RS-449 DTE Connector
Signal
Pin
Direction
Pin
Signal
Twisted Pair
Table 32 RS-449 DCE Cable Pinouts
Flex-WAN Connector
RS-449 DCE Connector
Signal
Pin
Direction
Pin
Signal
Twisted Pair
CTS/RTS+
1
←
7
RS+
1
CTS/RTS-
2
←
25
RS-
DSR/DTR+
3
←
12
TR+
2
DSR/DTR-
4
←
30
TR-
DCD/DCD+
5
←
13
RR+
3
DCD/DCD-
5
←
31
RR-
DTR/DSR+
7
→
11
DM+
4
DTR/DSR-
8
→
29
DM-
RTS/CTS+
9
→
9
CS+
5
RTS/CTS-
10
→
27
CS-
TxD/RxD+
11
→
6
RD+
6
TxD/RxD-
12
→
24
RD-
60-pin Flex-WAN male connector
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
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 26 27 28 29 30 31 32 33 34 35 36 37
To DTE
37-pin female connector