Table A-1. Cable Connections.
IC713
RS-449
RS-449
V.35
V.35
X.21
X.21
DTE
DCE
DTE
DCE
DTE
DCE
Function
25-PIN
37-PIN
37-PIN
34-PIN
34-PIN
15-PIN
15-PIN
Frame
Ground
1 (1)
1
1
A
A
1
1
Signal
Ground
7 (7) 19,20,37
19,20,37
B
B
8
8
TX Data A
2 (9)
4
6
P
R
2
4
TX Data B
13 (11)
22
24
S
T
9
11
RX Data A
3 (12)
6
4
R
P
4
2
RX Data B
23 (13)
24
22
T
S
11
9
TX Clock A
15 (14)
5
-
Y
-
-
-
TX Clock B
19 (10)
23
-
AA/a
-
-
-
Rx Clock A
17 (23)
8
17
V
U
6
-
RX Clock B
12 (22)
26
35
X
W
13
-
Terminal
Timing A
24 (19)
-
8
-
V
-
6
Terminal
Timing B
14 (16)
-
25
-
X
-
13
RTS
4 (4)
7
13
C
F
3
5
CTS
5 (5)
9
-
D
-
-
-
7 (7)
27
-
-
-
-
-
DSR
6 (6)
11
12
E
H
-
-
7 (7)
29
30
-
-
-
-
DCD
8 (8)
13
7
F
C
5
3
7 (7)
31
25
-
-
12
10
Local
Loop
18 (18)
10
-
JJ
-
-
-
Test
Indicator
25 (25)
18
-
KK
-
-
-
42
G.703 CODIRECTIONAL CONVERTER
