62
C
HAPTER
A: O
PTIONAL
C
ABLE
S
PECIFICATIONS
EIA/TIA-449 DTE Cable
Pinouts
Table 11 describes EIA/TIA-449 DTE cable pinouts.
44
RXD/TXD-
<-
Transmit-
9
15
TXD/RXD+
->
R
4
39
TXD/RXD-
->
Receiver-
11
16
RXC/TXCE+
->
6
40
RXC/TXCE-
->
Timing-
13
-
Shielding sheath
<-->
Shielding sheath
-
Table 10
X.21 DCE Cable Pinouts (continued)
DB50
Signal
Signal Direction Signal
DB15
Table 11
EIA/TIA-449 DTE Cable Pinouts
DB50
Signal
Signal Direction Signal
DB37
7
GND
<-->
Circuit GND
19
23
DTE/DCE
-
Circuit GND
19
50
GND
<-->
Sield GND
1
8
DTR/DSR+
->
TR+
12
32
DTR/DSR-
->
TR-
30
13
DSR/DTR+
<-
DM+
11
37
DSR/DTR-
<-
DM-
29
10
RTS/CTS+
->
RS+
7
34
RTS/CTS-
->
RS-
25
38
CTS/RTS+
<-
CS+
9
14
CTS/RTS-
<-
CS-
27
36
DCD/DCD+
<-
RR+
13
12
DCD/DCD-
<-
RR-
31
1
LL/LL
->
LL
10
20
RXD/TXD+
<-
RD+
6
44
RXD/TXD-
<-
RD-
24
15
TXD/RXD+
->
SD+
4
39
TXD/RXD-
->
SD-
22
16
TXCE/RXC+
->
TT+
17
40
TXCE/RXC-
->
TT-
35
19
RXC/TXCE+
<-
RT+
8
43
RXC/TXCE-
<-
RT-
26
18
TXC/NIL+
<-
ST+
5
42
TXC/NIL-
<-
ST-
23
-
Shielding sheath
<-->
Shielding sheath
-
Summary of Contents for Router 3012
Page 6: ...6 CHAPTER ABOUT THIS GUIDE ...
Page 18: ...18 CHAPTER 1 OVERVIEW ...
Page 34: ...34 CHAPTER 3 INSTALLING THE ROUTER ...
