User`s manual

O-3
UMAN-EN3
Communications Protocol
The Encore 3 supports RTS/CTS (hardware) and XON/
XOFF handshaking protocols to synchronize with the
host terminal. The handshaking protocol and the baud
rate is programmable. The default cable communications
parameters are:
Handshaking = RTS/CTS Baud Rate = 19,200
Parity = None Data Bits = 8
Stop Bits = 1
Pin Assignments
The following are the pin assignments for the 8-pin DIN
RS232C serial connector.
Signal Signal
Pin Name Type Description
1 RXD input Receive Data
2 TXD output Transmit Data
3 CTS input Clear To Send from host
4RTS output Request To Send
set high when printer
is ready to accept command
/data
5 GND Ground
6NC No Connect
7 DSR input Data Set Ready
low to high transition turns
printer on, high to low
transition turns printer off
8 DTR output Data Terminal Ready
set high when printer is on
(set to battery voltage for
“S” versions)