Pin Layout And Functions - Citizen CBM-202PC-04 User Manual

4.3 Terminal Layout and Functions
Pin No. Signal
1 VCC
2 LFSW
3 LEDER
4 LEDPE
5
6 LATCH
7 PAPER
8 DRQ
9
10 RES0
11 VSS
12 DTR
13 TXD
14
15 RXD
16
17
18 CTSW
19
20
21 NU
22 VSS
23 MOTORA
24 MOTORB
25 MOTORA
Note) For notation of the signals whose logic is "LOW"(Negative), a representation of
XXX(Upper line) will be omitted for the subsequent notations.
I/O
-
Input
Output
Output
NC -
Output
Input
Input
NC -
Output
-
Output
Output
DI Input
Input
CP Input
NC -
Input
NC -
NC -
-
-
Output
Output
Output
Function
VCC
LF switch input
Error LED output
Paper end LED output
NC
Head latch signal
Paper end input NC
DMA request
NC
Watchdog output
GND
Serial DTR (RS-232C)
Serial TXD (RS-232C)
Print head output data
Serial RXD (RS-232C)
Print head clock
NC
Cutter switch input
NC
NC
RESERVED
GND
Motor A
Motor B
Motor A
9
CBM-202PC-04 User's Manual
Logic
LOW
LOW
LOW
LOW
HIGH
LOW
LOW
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
-
-
-
-
-
-
-
-
-
-
-
-
CITIZEN