Symbol LT 1804 Product Reference Manual page 25

LT 1804 Product Reference Guide: Maintenance and Specifications
PIN
2 TxD
3 RxD
4 RTS
5 CTS
7 GROUND
20 DTR
Table 3-6. 25-Pin Female D-Type Connector
25-06858-01 for power supply version
20-03116-01 for battery pack version
SIGNAL NAME
Serial data transmit output. It drives the serial data
receive input on the device communicating with the
scanner.
Serial data receive input. It is driven by the serial data
transmit output on the device communicating with the
scanner.
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.
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.
Power supply input ground pin and reference for both
output signals. It must be capable of sinking all return
current.
Data Terminal Ready. This signal is hardwired active.
3-10
FUNCTION