Comtec Encore 4, User Manual, Page: 10 / 36

O-4
UMAN-EN4
Communications Protocol
The Encore 4 supports RTS/CTS (hardware) and XON/
XOFF handshaking protocols to synchronize with the
host terminal. The handshaking protocol and the baud
rate are programmable. The default 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.
Pin Pin Signal Signal
Number Name Type Description
1 RXD input Receive Data
2 TXD output Transmit Data
3 CTS input Clear To Send from host
4 RTS output Request To Send
set high when printer
is ready to accept command/
data
5 GND Ground
6 NC No Connect
7 DSR input Data Set Ready
Low to high transition turns
printer on, High to low
transition turns printer off
(if enabled)
8 DTR output Data Terminal Ready
set high when printer is on
(set to battery voltage for
“S” versions)