CL4490 Hardware Integration Guide
Version 1.0
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www.lairdtech.com/ramp
12
Laird Technologies
3. Run Preinstaller.exe.
4. If a Windows logo testing dialog appears, click “Continue anyway.”
Select Finish and reboot if prompted.
CL4490-PRO Serial Interface
DIP Switches
The CL4490-PRO DIP switches are located next to the Status LEDs and configure the serial interface and
mode of the radio. The
Figure 7
diagram also appears on the bottom of the metal casing of the CL4490-PRO
for reference when configuring the radios.
Figure 7: CL4490-PRO DIP Switch Settings
Note: The TX/RX Mode DIP switch settings override properties set with the Laird Configuration Utility.
RS232
RS232 is a single-ended data transmission protocol. The RS232 signals are represented by voltage levels with
respect to a system common (power/logic ground). The
idle
state (MARK) has the signal level negative with
respect to common, and the “active” state (SPACE) has the signal level positive with respect to common.
Figure 8: RS232 DIP Switch Settings (Only use Forced 9600 Mode to recover the radio when the state is unknown)
