3-8
LT 1804 Product Reference Guide: Maintenance and Specifications
Table 3-4. 25-Pin Male D-Type Connector
25-06862-01 for power supply version
20-03114-01 for battery pack version
PIN
SIGNAL NAME
FUNCTION
2
TxD
Serial data transmit output. It drives the serial data
receive input on the device communicating with the
scanner.
3
RxD
Serial data receive input. It is driven by the serial data
transmit output on the device communicating with the
scanner.
4
RTS
Request-to-send handshaking output line. It may be
optionally used by the scanner to signal another device
that data is available to send. It can only be used in
conjunction with the CTS line.
5
CTS
Clear-to-send handshaking input line. It may be
optionally used by another device to signal the scanner
that it may commence transmitting data. It can be used
only in conjunction with the RTS line.
7
GROUND
Power supply input ground pin and reference for both
output signals. It must be capable of sinking all return
current.
20
DTR
Data Terminal Ready. This signal is hardwired active.
Summary of Contents for LT 1804
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