ProgrammerManual PTX‐S828
AppendixB‐Interfaces 370 260071‐001A
Serial Interface Signals
The following table lists the RS-232/C serial interface signals:
Local Remote
Connect. Connect.
Signal Name Pin Number Source Source Description
SIGNAL 5 – – Always connected to the 0 Volts of the
GROUND Power Supply
TXD 3 Printer Printer Transmitted Data Signal (an output from
printer). A MARK condition is held during
IDLE communication state. An indeterminate
state is present when printer is powered off.
RXD 2 Host Data Set Received data signal (an input to printer).
RTS 7 Printer Printer Request to Send Signal (an output from
printer). Active HIGH level signal. It is HIGH
until the printer is powered off, then an
indeterminate state is present .
CTS 8 Data Set Active HIGH level signal indicates that the
host or data set is ready to receive data from
the printer.
DSR 6 Data Set Active HIGH level signal. Indicates that the
host or data set is ready to be connected to
the printer and is ready for data transfer.
DCD 1 Data Set Active HIGH level signal. Indicates that the
host is transmitting or the data set is r
receiving the Data Carrier signal.
2nd RTS 9 Printer Functionally equivalent to the DTR signal.
DTR 4 Printer Printer Data Terminal Ready. Normally HIGH (ON).
Indicates that the printer is ready to initiate a
connection.
LAN Interface Port
LAN Interface Port
1. Ethernet 10/100BaseT Connector
2. Green 10/100Mbit/sec. Transmission Speed LED
3. Yellow Traffic LED
LED Indicators
The LED indicator modes are described in the following table:
LED Status Description
Yellow LED Unlit Transmission speed at 10Mbit/sec.
Lit Transmission speed at 100Mbit/sec.
Green LED Blinks Transmitting or receiving packets from the network.
USB Interface Port
USB 2.0 full speed 12/Mbit/sec. interface.
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