3. External Connection
COM-2C-PE, COM-4C-PE, COM-8C-PE
37
When using the CCU-78F/25M connection conversion unit
Use a CCU-78F/25M connection conversion unit (purchased separately) to connect to external devices
after dividing into eight 25-pin D-SUB male connector channels.
This method has the following features.
-
The unit can be fitted to a DIN rail using a separately purchased ADP-1 DIN rail adapter.
-
The unit can be fitted to a wall or similar using screws.
-
By connecting an external power supply, the unit can output a power supply from the 25-pin D-SUB
connector.
Use a separately purchased 25-pin D-SUB connector cable to connect from the eight individual
connectors.
RS-232C cables connecting
to external devices
To Board
CCU-78F/25M
Connection conversion unit
for the COM-8ch/4ch board
Option
cable
25-pin D-SUB
connector
E x te r na l
equipment
E x te r na l
equipment
E x te r na l
equipment
.
.
.
Figure 3.11. Connection Procedure
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
- Connector used
25-pin D-SUB, male connector
Thumb screw: UNC#4-40(inch screrw)
- Applicable
17JE-13250-02(D8C)(mfd. by DDK, Female)
CN5-D25F (mfd. by CONTEC, Female) (Five connector set)
* A power supply output is referred to.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
Data Terminal Ready DTR
N.C.
Ring Indicator
RI
N.C.
N.C.
Power supply output *
FG
TxD
Transmit Data
RxD
Receive Data
RTS
Request to Send
CTS
Clear to Send
DSR Data Set Ready
SG
Signal Ground
DCD Data Carrier Detect
N.C.
N.C.
N.C.
N.C.
N.C.
Figure 3.12. Pin Assignments of Interface Connector
