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40930701TH DRAFT Vesion 189 /
Appendix B RS-232C SERIAL INTERFACE
1) Connector
• Printer side : 25-pin receptacle
Type 17LE-13250-27 (D4CC) (made by DDK) or equivalent
• Cable side : 25-pin plug
Type 17JE-23250-02 (D8C) (made by DDK)
Note:
Plug shall be able to be fixed with a lock screw.
2) Cable
• Cable length: 6 ft (1.8m) max. (Cable shall be shielded)
Note:
Cable is not provided.
3) Interface signal
• Connector pin arrangement
←
PR
→
PR
←
PR
←
PR
←
PR
Pin No. Signal name Signal directionAbbreviation Functions
1
2
3
4
5
6
7
8~17
18
19
20
21~25
Frame Ground
Transmitted Data
Received Data
Request To Send
-
-
Signal Ground
-
+5V
-
Data Terminal Ready
-
FG
TD
RD
RTS
SG
DTR
Frame ground
Transmitted data
Received data
Stay space level
(Not connected)
(Not connected)
Signal ground
(Not connected)
+5V (50mA maxx.)
(Not connected)
Data terminal ready
(Not connected)
13
25
1
(View from the cable side)
14
When the Reade/Busy protocol is used for the buffer busy control method, the busy signal can
be set to Pin-20 (DTR) in the menu.
4) Signal level
• MARK polarity : -3V to -15V (LOGIC = 1)
• SPACE polarity: +3V to +15V (LOGIC = 0)