Rs-530 interface, Appendix e: connector pinouts, Table e-b – ADTRAN ISU 128 User Manual
Page 131: I= input, o= output, n/a= not applicable
Appendix E: Connector Pinouts
116
ISU 128 User Manual
61202.029L2-1
Table E-B
RS-530 Interface
Pin
Name
I/O
Description
1
Shield
I/O
Shield for cable
2
TD-A
I
Transmitted Data
3
RD-A
O
Received Data
4
RTS-A
I
Request to Send
5
CTS-A
O
Clear To Send
6
DSR-A
O
Data Set Ready
7
SG
I/O
Signal Ground
8
CD-A
O
Carrier Detect
9
RC-B
O
Receive Clock (return)
10
CD-B
O
Carrier Detect (return)
11
ETC-B
I
External Transmit Clock (return)
12
TC-B
O
Transmit Clock (return)
13
CTS-B
O
Clear To Send (return)
14
TD-B
I
Transmit Data (return)
15
TC-A
O
Transmit Clock
16
RD-B
O
Receive Data (return)
17
RC-A
O
Receive Clock
18
NC
N/A
No Connection
19
RTS-B
I
Request To Send (return)
20
DTR-A
I
Data Terminal Ready
21
NC
N/A
No Connection
22
DSR-B
O
Data Set Ready (return)
23
DTR-B
I
Data Terminal Ready (return)
24
ETC-A
I
External Transmit Clock
25
NC
N/A
No Connection
I= Input, O= Output, N/A= Not Applicable