RAD Data comm RIC-E1 Appendix A Interface Connector Wiring

V.35, X.21 and RS-530 Interface Connectors A-1
Appendix A
Interface Connector Wiring
A.1 V.35, X.21 and RS-530 Interface Connectors
Table A-1 lists the pin assignments of the V.35, X.21 and RS-530 interface
connectors.
Table A-1. V.35, X.21 and RS-530 Interfaces, Pin Assignments
V.35, 34-Pin RS-530, DB-25 X.21, DB-15
Signal
Function
Pin Circuit Pin Circuit Pin
[Function]
Circuit
Protective
Ground
A Frame 101 1 101 1 [SHIELD] 101
Signal
Ground
B Signal
GND
102 7 AB 102 8 [GND] 102
Transmitted
Data
P
S
TD(A)
TD(B)
103
103
2
14
BA(A)
BA(B)
103
103
2
9
T(A)
T(B)
[Transmit]
103
103
Received
Data
R
T
RD(A)
RD(B)
104
104
3
16
BB(A)
BB(B)
104
104
4
11
R(A)
R(B)
[Receive]
104
104
Request to
Send
C RTS 105 4
19
CA(A)
CA(B)
105 3
10
C(A)
C(B)
[Control]
105
Clear to
Send
D CTS 106 5
13
CB(A)
CB(B)
106 106
Data Set
Ready
E DSR 107 6
22
CC(A)
CC(B)
107 107
Data
Terminal
Ready
H DTR 108 20
23
CD(A)
CD(B)
108 108
Carrier
Detect
F DCD 109 8
10
CF(A)
CF(B)
109 5
12
I (A)
I (B)
[Indication]
109
External
Transmit
Clock
U
W
SCTE(A)
SCTE(B)
113
113
24
11
DA(A)
DA(B)
113
113
7
14
(A)
(B)
113
113
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