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Technical Manual
5.6.5. Connector X2006 (COM2 / LPT1)
All signals are TTL compatible.
STB
Active low pulse is used to strobe the printer data into the printer.
AFD#
Active low output causes the printer to automatically feed one line after each line is printed.
PD0..PD7
Bi-directional parallel data bus is used to transfer information between CPU and peripherals.
ERR#
Active low signal indicates an error situation at the printer.
INIT#
Active low signal used to initiate the printer when low.
SLIN#
Active low signal selects the printer.
ACK#
Active low output from the printer indicates it has received the data and is ready to receive new data.
BUSY#
Indicates the printer is busy and not ready to receive new data.
PE
Indicates that the printer is out of paper.
SLCT
Active high output from the printer indicates that it has power on.
DTR2#
Active low data terminal ready output for the serial port. Handshake output signal notifies modem that
the UART is ready to establish data communication link.
RI2#
Active low input handshake signal which notifies the UART that the telephone ring signal is detected by
the modem.
SOUT2
Transmitter serial data output from serial port.
SIN2
Receiver serial data input.
CTS2#
Active low input handshake signal which notifies the UART that the modem is ready to receive data.
RTS2#
Active low output handshake signal notifies the modem that the UART is ready to transmit data.
DCD2#
Active low input handshake signal which notifies the UART that carrier signal is detected by the modem.
DSR2#
Active low input handshake signal which notifies the UART that the modem is ready to establish the
communication link.
ePanel-C3
Page 21 of 71 Pages
Version 1.04
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