51
APPENDIX: Pinouts
Figure A-9. Connecting an RS-530 DTE to an RS-530 Converter.
RS-530
DTE
DB25
G.703
Codirectional
Converter
(DCE)
DB25
7
SIGNAL GND
6
DSR-a
22
DSR-b
5
CTS-a
13
CTS-b
4
RTS-a
19
RTS-b
8
DCD-a
10
DCD-b
15
TC-a
12
TC-b
17
RC-a
9
RC-b
2
TD-a
14
TD-b
3
RD-a
16
RD-b
18
LL
21
RL
25
TM
1
SHIELD
SIGNAL GND
7
DSR-a
6
DSR-b
22
CTS-a
5
CTS-b
13
RTS-a
4
RTS-b
19
DCD-a
8
DCD-b
10
TC-a
15
TC-b
12
RC-a
17
RC-b
9
TD-a
2
TD-b
14
RD-a
3
RD-b
16
LL
18
RL
21
TM
25
SHIELD
1