AdvanPOS WP-T800 - Serial (RS-232 C) Interface Details

WP-T800 1 Station Thermal Line Printer
- 18 -
DTR
RXD
256
bytes
Remainder
256 bytes
Empty Near empty Near full Full
8K bytes
Head up or Paper end error
RECEIVE
BUFFER
6.2 Serial interface specifications
6.2.1 Specifications (Conform to RS-232C)
Synchronizing system
: Asynchronous system
Handshaking : DTR/DSR control
Baud rates : 9600,19200,38400,115200 (Refer chapter 5-3)
Data length : Fixed 8 bit length
Parity : None
6.2.2 Pin assignment
No. Signal Name I/O Signal Name
2 TXD Output Transmit data
3 RXD Input Receive data
6 DSR Input Data set ready
20 DTR Output Data terminal ready
7 GND - Signal ground
6.2.3 Timing Chart
13 1
25 14