3Com Router 3016 Installation Manual page 63

EIA/TIA-449 DCE Cable
Pinouts
EIA-530 DTE Cable
Pinouts
Table 12 describes EIA/TIA-449 DCE cable pinouts.
EIA/TIA-449 DCE Cable Pinouts
Table 12
DB50 Signal
7 GND
50 GND
8 DTR/DSR+
32 DTR/DSR-
13 DSR/DTR+
37 DSR/DTR-
10 RTS/CTS+
34 RTS/CTS-
38 CTS/RTS+
14 CTS/RTS-
36 DCD/DCD+
12 DCD/DCD-
20 RXD/TXD+
44 RXD/TXD-
15 TXD/RXD+
39 TXD/RXD-
16 TXCE/RXC+
40 TXCE/RXC-
19 RXC/TXCE+
43 RXC/TXCE-
17 NIL/TXC+
41 NIL/TXC-
- Shielding sheath
Table 13 describes EIA-530 DTE cable pinouts.
Table 13 EIA-530 DTE Cable Pinouts
DB50 Signal
7 GND
23 DCE/DTE
50 GND
8 DTR/DSR+
32 DTR/DSR-
13 DSR/DTR+
37 DSR/DTR-
10 RTS/CTS+
34 RTS/CTS-
38 CTS/RTS+
14 CTS/RTS-
36 DCD/DCD+
12 DCD/DCD-
Serial Interface Cable
Signal Direction Signal
<--> Circuit GND
<--> Shield GND
-> DM+
-> DM-
<- TR+
<- TR-
-> CS+
-> CS-
<- RS+
<- RS-
<- RR+
<- RR-
<- SD+
<- SD-
-> RD+
-> RD-
<- RT+
<- RT-
<- TT+
<- TT-
<- ST+
<- ST-
<--> Shielding sheath
Signal Direction Signal
<--> Circuit GND
- Circuit GND
<--> Shield GND
-> DTR+
-> DTR-
<- DSR+
<- DSR-
-> RTS+
-> RTS-
<- CTS+
<- CTS-
<- DCD+
<- DCD-
63
DB37
19
1
11
29
12
30
9
27
7
25
13
31
4
22
6
24
8
26
17
35
5
23
-
DB25
7
7
1
20
23
6
22
4
19
5
13
8
10