[
Contents]
[
Prev]
[
Next]
[
Index]
[
Report an Error]
X.21 and V.35 Cable Pinouts for EIA-530 PIC
The EIA-530 PIC accepts X.21 and V.35 cable connectors.
- A V.35 connection requires an DB-25 to V.35 cable and
connects to a V.35 data terminal equipment (DTE) 34-pin Winchester
type male cable (one per port). Table 36 describes the V.35 cable pinouts.
- An X.21 connection requires an DB-25 to X.21 cable and
connects to a X.21 DTE DB-15 male cable. Table 37 describes the X.21 cable pinouts.
Figure 92: EIA-530 PIC
Table 36: DB-25 Connector to
V.35 Connector Pinout
|
DB-25 Pin
|
Signal
|
V.35 Pin
|
Description
|
|
2
|
TD
|
P
|
Transmit Data
|
|
14
|
TD
|
S
|
Transmit Data
|
|
3
|
RD
|
R
|
Receive Data
|
|
16
|
RD
|
T
|
Receive Data
|
|
4
|
RTS
|
C
|
Ready To Send
|
|
5
|
CTS
|
D
|
Clear To Send
|
|
6
|
DSR
|
E
|
Data Set Ready
|
|
20
|
DTR
|
H
|
Data Terminal Ready
|
|
24
|
XTC
|
U
|
DTE Transmit Clock
|
|
11
|
XTC
|
W
|
DTE Transmit Clock
|
|
15
|
TC
|
Y
|
Transmit Clock
|
|
12
|
TC
|
AA
|
Transmit Clock
|
|
17
|
RC
|
V
|
Receive Clock
|
|
9
|
RC
|
X
|
Receive Clock
|
|
1
|
FGND
|
A
|
Protective Ground
|
|
7
|
GND
|
B
|
Signal Ground
|
|
8
|
DCD
|
F
|
Data Carrier Detect
|
Table 37: DB-25 Connector to
DB-15 (X.21) Connector Pinout
|
DB-25 Pin
|
Signal
|
DB-15 (X.21) Pin
|
Description
|
|
1
|
FGND
|
1
|
Protective Ground
|
|
7
|
GND
|
8
|
Signal Ground
|
|
2
|
T
|
2
|
Transmit Data
|
|
14
|
T
|
9
|
Transmit Data
|
|
3
|
R
|
4
|
Receive Data
|
|
16
|
R
|
11
|
Receive Data
|
|
4
|
C
|
3
|
Request To Send
|
|
19
|
C
|
10
|
Request To Send
|
|
8
|
I
|
5
|
Data Carrier Detect
|
|
10
|
I
|
12
|
Data Carrier Detect
|
|
17
|
S
|
6
|
Receive Clock
|
|
9
|
S
|
13
|
Receive Clock
|
[
Contents]
[
Prev]
[
Next]
[
Index]
[
Report an Error]
