Connecting Rs-232C Cable - IDK MSD-72 Series User Manual

7.2.4 Connecting RS-232C cable

For RS-232C ports, 9-pin D-sub male pin or 3-pin terminal block can be used depending on the model you
use. Use the appropriate cables for the type of RS-232C port.
Part number
MSD-7201UHD
MSD-7202UHD
MSD-7203UHD
MSD-7204UHD
MSD-7201UHDTB
MSD-7202UHDTB
MSD-7203UHDTB
MSD-7204UHDTB
■ 9-pin D-sub RS-232C ports
Use cross cable when you connect the MSD to PC.
The pin assignments of RS-232C port D-sub (9-pin) are following:
RS-232C connector
1
6
D-sub 9-pin・male
■ 3-pin Terminal block RS-232C ports
Fix RS-232C cable to the attached3-pin terminal block, and then connect it to the MSD.
IDK recommends using AWG 28 to AWG16 cable. The maximum peeling length is 7 mm (0.28 inch approx.)
[Figure 7.5] Connecting RS-232C cable to 3-pin terminal block connector
[Table 7.4] Connector types for RS-232C port
Number of RS-232C port
2 ports
2 ports
5
9
[Figure 7.4] 9-pin D-sub connector pin assignments
RS-232C Tｘ
RS-232C Rx
GND
Connector types for RS-232C
9-pin D-sub (male)
3-pin terminal block
Pin #
1 N.C. （Not used）
2 RxD （Receiving data）
3 TxD （Sending data）
4 DTR （Not used）
5 GND （Ground）
6 DSR （Not used）
7 RTS （Sending request）
8 CTS （Receiving request)
9 N.C. （Not used）
Up to 7 mm (0.28 inch approx.)
Tx
Rx
GND
27
MSD-72 Series User's Guide
Signal