CSI Wireless SBX-3, Справочное руководство

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SBX-3 Reference Manual
26
You will require a Philip’s screwdriver to open the back panel. Use of a
plastic ballpoint pen is recommended when making this adjustment.
Figure 2-5 illustrates the location of the RS-232/RS-422 slide switch on
the Evaluation Module printed circuit board:
RS-232
RS-422
S1
+ 1 0 V
+ 5 V
ANTENNA PWR
J
P
1
Figure 2-5 Evaluation Module RS-232/RS-422 Configuration
With the switch set to the lower position (as viewed in Figure 2-5), the
receiver communicates at the RS-232C level. When set to the upper
position, the receiver communicates at the RS-422 level. The interface
level corresponding to the switch position is silk-screened onto the
circuit board.
Caution – The SBX-3 and its Evaluation module are electrostatic
sensitive devices. Observe proper precautions when handling
components during this procedure. Damage caused to the
receiver by ESD is not covered under warranty.
Once you have set the switch to the desired position, slide the receiver
board back into the enclosure and reinstall the back panel.