CK821 Thermal POS printer User’s manual
15
5.3 Cash drawer interface pin definition
（
RJ11-6P6C
）
1
）
Electrical specification
Driver voltage: DC24V
Driver current: Max. 0.8A (within 510ms)
Cash drawer status tests signal: “L” = 0
～
0.5 V ; “H” = 3
～
5 V
2)
Cash drawer interface socket uses RJ-11 6P type connector;
3)
Interface signal definition
Pin number
Signal
function
1
FG
Printer cover
2
DRAWER 1
Cash drawer 1 driver signal
3
DRSW
Cash drawer status detection signal
4
VDR
Cash drawer driver power
5
DRAWER 2
Cash drawer 2 driver signal
6
GND
Common ground circuit
Notes:
1) Prohibit socket with power to pull out communication wire plug.
2) Please avoid to parallel with strong power when wring communication cables av
通讯线布线时应避免和强电
并行；
3) Communication cables use with shielded cables.
5.4 Serial port pin definition
（
DB9F
）
Printer serial port is compatible with RS-232, the interface socket is DB9 female socket.
User can check interface setting status via printing setting self-test page. Printer default serial interface is set as:
baud rate 19200bps, 8 bit data bits, no parity,1 bit stop bit, and the handshakes method is DTR/DSR
。
Pin number
Definition
1
CD
2
TD
3
RD
4
DSR
5
GND
6
DTR
7
CTS
8
RTS
