Serial and parallel interface pin assignment tables are shown below.
■ Serial interface pin assignment table
6.2.5 Interface pin assignment
Pin No.
Signal Input/Output Description
1
F.GND
- Frame ground
2 TXD
Output RS-232C output data
3
RXD
Input
RS-232C input data
4 RTS - RS-232C (pull up to +5V with 2 Ki2)
5
CTS Input RS-232C data transmission on
computer enabled
6 NC -
Not connected
7
S.GND -
Signal ground
8 NC -
Not connected
9
NC -
Not connected
10
NC
-
Not connected
11
NC -
Not connected
12 NC
- Not connected
13
S.GND - Signal ground
14
-H5VDC
- -h5 V (max. load 100 mA)
15
NC -
Not connected
16 NC
-
Not connected
17 NC
-
Not connected
18
NC
- Not connected
19
NC
-
Not connected
20
DTR Output RS-232C data transmission on
printer enabled (Busy)
21
NC -
Not connected
22 NC -
Not connected
23
NC -
Not connected
24 NC
- Not connected
25 NC
- Not connected
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