AC4490 User Guide
Version 4.5
Laird Connectivity Solutions Support Center:
http://ews-support.lairdtech.com
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Change Server/Client
The OEM Host issues this command to change the mode of the transceiver from server to client and vice
versa.
Command: <0xCC> <0x03> <Mode>
Number of Bytes Returned: 3
Response: <0xCC> <Version> <Mode>
Parameter Range:
<Mode> =
0x00: Server
0x03: Client
<Version> =
Firmware version of radio
Change Sync Channel
The OEM Host issues this command to change the sync channel byte and enable sync to channel. See
Appendix I: Sync-to-Channel
for more information.
Note: Valid only for server transceivers.
Command: <0xCC> <0x05> <Channel>
Number of Bytes Returned: 3
Response: <0xCC> <Channel>
Parameter Range: <Channel> = Sync Channel
Sleep Walk Power-Down
After the host issues this command, the client transceiver will issue its In_Range line logic high after entering
power down. A client in Power Down will remain in sync with a server for a minimum of 2 minutes. To
maintain synchronization with the server, the client should re-sync at least once every 2 minutes. This is done
by sending the Power Down Wake Up command and waiting for the In_Range line to issue logic low. Once
this occurs, the client is in sync with the server and can be put back into power-down mode.
Note: This command is valid only for client transceivers.
Command: <0xCC> <0x06>
Number of Bytes Returned: 2
Response: <0xCC> <Channel>
Parameter Range: <Channel> = RF Channel currently being used
