IDEC MicroSmart User Manual
Page 425
26: C
OMPUTER
L
INK
C
OMMUNICATION
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26-5
RS232C Connector Pinouts
Dimensions
RS232C Cable HD9Z-C52
AC Adapter
The RS232C/RS485 converter is powered by a 24V DC source
or an AC adapter with 9V DC, 350mA output capacity.
Pin No.
Description
1
GND
Frame Ground
2
TXD
Transmit Data
3
RXD
Receive Data
4
(RTS)
Unused
5
(CTS)
Unused
6
(NC)
Unused
7
GND
Signal Ground
8-25
(NC)
Unused
1
13
14
25
Note: Terminals 4 and 5 are connected together internally.
D-sub 25-pin Female Connector
110 mm (4.331")
10 mm (0.394")
132 mm (5.197")
3.6 mm
7 mm (0.276")
34 mm (1.339")
AC Adapter Jack
Mounting Bracket
5 mm
Rubber Feet
24.4 mm
3.6 mm
D-sub 25-pin Connector
ø4.5 mm hole
× 2
142 mm
10 mm (0.394")
(0.142")
3.6 mm
(0.142")
(0.142")
3.6 mm
(0.142")
(0.197")
(0.961")
(5.591")
(0.177" dia.)
Note: When mounting the RS232C/RS485 conver ter
on a panel sur face, remove the rubber feet; then
attach the supplied mounting brackets on the bottom
of the conver ter using screws.
Mounting Hole Layout
Connector for RS232C/RS485 Converter
D-sub 25-pin male connector
Description
Pin No.
GND
Frame Ground
1
TXD
Transmit Data
2
RXD
Receive Data
3
RTS
Request to Send
4
CTS
Clear to Send
5
DSR
Data Set Ready
6
DCD
Data Carrier Detect
8
DTR
Data Terminal Ready
20
GND
Signal Ground
7
Connector for Computer
D-sub 9-pin female connector
Pin No.
Symbol
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
1.5m (4.92 ft.) long
9.5
ш2.1
ш5.5
Polarity
+
–
Dimensions in mm.