Symbol LS 6800, User Manual

Page: 39 / 249

4-7
Maintenance and Specifications
5 RTS Request-to-send handshaking output line, used optionally
by the scanner to signal another device that data is
available to send. It can be used only in conjunction with
the CTS line.
6 DTR Data Terminal Ready. This signal is hardwired active.
7 Ground Power supply input ground pin and reference for both
output signals. It must be capable of sinking all return
current.
Table 4-5. Single-Port RS-232C, 25-Pin Female,
D-Type Connector — p/n 25-17231-01
Pin Signal Function
2 TxD Serial data transmit output. This drives the serial data
receive input on the device communicating with the
scanner.
3 RxD Serial data receive input, driven by the serial data transmit
output on the device communicating with the scanner.
4 RTS Request-to-send handshaking output line, used optionally
by the scanner to signal another device that data is
available to send. It can be used only in conjunction with
the CTS line
5 CTS Clear-to-send handshaking input line, used optionally by
another device to signal the scanner to begin 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.
Table 4-4. Single-Port RS-232C, 25-Pin Female,
D-Type Connector — p/n 25-17230-01 (Cont’d)
Pin Signal Function