Xiamen RP80VI User Manual - page 13
13
GND 5
5 GND
6 DSR
Printer serial interface DB9
4 DTR
POS host serial interface DB9
7. Printer parallel interface
RP80VI printer parallel interface socket is 25PIN Parallel socket,8 bits
parallel transmission,support BUSY/nAck handshake protocol.Each PIN function of
Printer parallel interface socket are as follows:
PIN
no.
Signal
name
Signal
source
Description
1
/STB
Host
Data gate trigger pulse,it will read-in data
when negative edge
2
3
4
5
6
7
8
9
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
DATA9
Host
Host
Host
Host
Host
Host
Host
Host
These signals separately represents NO.1
to No.8 information of Parallel data.And
when logic is 1,it is high level,when logic
is 0,it is low level.
10
nAck
Printer
Printer answering signal,It shows printer
has received previous byte data
11
BUSY
Printer
High level shows printer is busy,it can
not receive data
12
GND
-----
ground connection,Logic low level
13
Select
Printer
By resistance to pull high level
18-25
GND
-----
Ground connection,logic low level
15
NError(nFa
ult)
Priner
Printer ERROR singal
8.
Printer Ethernet Port
The Ethernet interface socket of RP80VI is RJ45-8P, supporting 10M/100M network,
and the transmission speed is adaptive.