Symbol LS4278 Product Reference Guide7-4
Connecting an RS-232 Interface
See Chapter 4, Radio Communications for information about scanner/cradle pairing and wireless
communication
The scanner must be connected to the cradle for the host parameter setting to take effect. When the scanner
is not connected to a cradle, and a host parameter bar code is scanned, a long low/long high beep sequence
sounds.
This connection is made directly from the cradle to the host computer.
Figure 7-1. RS-232 Direct Connection
To connect the RS-232 interface:
1. Attach the modular connector of the RS-232 interface cable to the host port on the bottom of the scanner cradle (see
Connecting the Cradle on page 1-8).
2. Connect the other end of the RS-232 interface cable to the serial port on the host.
3. Connect the power supply to the serial connector end of the RS-232 interface cable. Plug the power supply into an
appropriate outlet.
4. Select the RS-232 host type by scanning the appropriate bar code from RS-232 Host Types on page 7-8.
5. To modify any other parameter options, scan the appropriate bar codes in this chapter.
Interface cables vary depending on configuration. The connectors illustrated in Figure 7-1 are examples only.
The connectors may be different than those illustrated, but the steps to connect the cradle remain the same.
If a power supply is used, disconnect the power supply before changing host cables or the cradle may not recognize the
new host.
Interface Cable
Serial Port Connection to Host
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