NAME
RS-530 (DTE)
RS-232 (DCE)
Shield
Protective GND
Signal GND
Signal GND
RTS-a
RTS-b
CTS-a
CTS-b
DSR-a
DSR-b
DTR-a
DTR-b
LSD-a
LSD-b
TC-a
TC-b
RC-b
RC-a
EXT-TC-a
EXT-TC-b
TD-a
TD-b
RD-a
RD-b
LL
RL
TM
1
7
4
19
5
13
6
22
20
23
8
10
15
12
17
9
24
11
2
3
16
NC
NC
RTS
CTS
DSR
DTR
DCD
TC
RC
EXT-TC
TD
RD
LL
RL
TM
1
7
4
5
6
20
8
15
17
24
2
3
18
21
25
R=100 ohms
18
21
25
NC
14
R
R
R
R
R
Figure 2-3. Schematic diagram, RS-232 DCE/RS-530 DTE.
6
RS-232 TO RS-422/RS-530 INTERFACE-POWERED CONVERTER
