Star Micronics NP-225 User Manual
Page 17
14
5. Data signal input connecter (Parallel/Serial)
Printer side connecter: XG4C-2631 (Omron) equivalent
Corresponding housing: XG4M-2630-T (Omron) equivalent
Pin# Signal In/Output Interface
Function
Remarks
1
/STB
Input
Parallel
Data read assign signal
2
PD0
Input
Parallel
Parallel print data 0
3
PD1
Input
Parallel
Parallel print data 1
4
PD2
Input
Parallel
Parallel print data 2
5
PD3
Input
Parallel
Parallel print data 3
6
PD4
Input
Parallel
Parallel print data 4
7
PD5
Input
Parallel
Parallel print data 5
8
PD6
Input
Parallel
Parallel print data 6
9
PD7
Input
Parallel
Parallel print data 7
10
/ACK
Output
Parallel
Data processing end signal
11
BUSY
Output
Parallel
Receive data not ready signal
12
PE
Output
Para/Ser.
No paper signal
13
SLCT
Output
Parallel
Connection select signal
14
Not fixed
*
For extension
15
/ERROR
Output
Para/Ser.
Control stop signal
16 /INIT Input Para/Ser.
Initialize
signal
17
Not fixed
*
For extension
18,19
GND
-
Para/Ser.
Ground for signal
20
/LF
Input
Para/Ser.
Paper feed signal
21 TXD Output Serial
Transmit
data
22 RXD Input Serial
Receive
data
23 CTS Input Serial
Transmit
permit
signal
24
DTR
Output
Serial
Data transmit permit signal
25 GND
- Para/Ser.
Signal
ground
26 VH Input
Para/Ser.
DC
+24V
z
Connect GND and DC+24V to stabilize circuit. Since 14 and 17 are kept as
“HIGH”, do not connect them.
6. CN6 Autocutter sensor (control switch), motor
Printer side connector : 5483-04AX (Molex)
Mating connector : 5480-04 (Molex)
Pin #
Signals
Input/output
Functions
1
M+
Output
Motor drive signal
2
M-
Output
Motor drive signal
3
CSW1
Input
HP detect SW output
4
CSW2
-
HP detect SW GND
7. CN7 Auxiliary sensor (paper near end sensor)
Printer side connector: 53047-0310(Molex)
Mating
connector:
51021-0300(Molex)
Pin# Signal
name In/Output
Functions
Remarks
1
LED+
Output
Anode of LED
2 PNE Input
Collector
of
phototransistor
At High
Paper out
3
SG
-
Signal ground
Cathode or emitter
connect
4 SG
-
Signal
ground
* Valid when DIP SW S2-7 is on.
* When PNE signal is “High”, PE signal of CN5 outputs. Printing operation is not affected.