3.2.1. CONNECTION OF DEVICES WITH RS232 PORT - DTE TYPE (COMPUTER)
In purpose of connecting ADA-1021 to RS232 port of computer, should be used the RS232 extension cable CAB-DB9F/DB9M-S-
1,8m (available in CEL-MAR offer). Example connection is shown below.
Fig 5. Connection to RS-232 computer port
3.2.2. CONNECTION OF DEVICES WITH RS232 PORT - DCE TYPE (MODEM)
In purpose of connecting ADA-1021 to RS232 port type DCE (eg modem), should be used the RS232 cable CAB-DB9M/DB9M-C-
1,8m (available in CEL-MAR offer). Example connection is shown below.
Fig 6. Connection to device with RS232 type DCE
6
ADA-1021
RxD -2
TxD -3
DTR -4
DSR -6
RTS -7
CTS -8
PC
SG -5
RS232
DTE/DB-9M
ADA-1021
Current Loop
Vss+
Vss-
Power
Supply
RS232
DCE/DB-9F
CTS -7
RTS -8
GND -5
V -
V +
Tx -2
Rx -3
DSR -4
DTR -6
Tx+
Tx-
Rx+
.
2
3
4
6
7
8
5
The CAB-DB 9F/DB9M-S-1,8m cable
Socked
DB-9F
2
3
4
6
7
8
5
Plug
DB-9M
Rx-
Tx+
Tx-
Rx-
ADA-1021
Current Loop
Vss+
Vss-
Power
Supply
RS232
DCE/DB-9F
Tx -2
Rx -3
DSR -4
DTR -6
CTS -7
RTS -8
GND -5
V -
V +
Cable / Adapter
CAB-DB9M/BD9M-C-2m /
ADP-DB9M/DB9M-C
2
3
4
6
7
8
5
Plug
DB-9M
2
3
4
6
7
8
5
Plug
DB-9M
TxD -2
RxD -3
DSR -4
DTR -6
CTS -7
CTS -8
RS232 Device
DCE type
SG -5
RS232
DCE/DB-9M
Rx+
