User guide

37
Wireless I/O Extender User’s Guide
PN 161-09981-007A
January 2010
RTS line will control all remotes’ CTS lines.
When this mode is enabled the CTS line ceases to function as ow control. Therefore it is not recommended to enable
this feature when operating at high RS232 speeds.
Note: The RTS to CTS feature does not function in point-to-point systems that contain a repeater. If this feature is
needed in with a repeater, the system should be changed to a point-to-multiPoint system.
Note: If the DTRConnect feature is set to 2, the RTS to CTS feature will not work.
Note: If the DTRConnect feature is set to 1 and RTS to CTS function in enabled on the radio, the RTS to CTS
mode takes precedence over the functionality of the CTS line on the remote relating to the DTRConnect feature.
(8) Retry Time Out
Sets the retry time out of the radio before it will drop a connection and attempt to reconnect.
•8 – 255 in multipoint mode.
•151 – 255 in point-to-point mode.
The number of packets that fail in a row before dropping the connection and re-establishing a connection from a calling
master or repeater. Default is 255.
A lower setting will allow a remote to drop the connection after fewer failed packets and re-establish a connection with
other units in the remotes call book or in the same Network ID.
Note: Options in Blue are SRM models only
(9) Lowpower Mode
Lowpower Mode is used only in MultiPoint remote using serial protocol. The power savings occur only when a remote is
in receive mode. When the remote is transmitting data no power savings occur so it is of little value when a remote has a
constant, high throughput.
•0 to disable low power mode. Default is 0.
•1-31 to enable low power mode. See table for description.
Note: MCUSpeed must be set to ‘0’ and RF Data Rate must be set to ‘3’ for Lowpower Mode to operate properly
and additional power savings may result when the Number Repeaters is set to 1.
Note: To communicate to the RS232 port of the radio transceiver that is in Lowpower Mode, the RTS line must be
held high to wake it up. Because the Lowpower mode puts the radio to sleep, latency will be introduced before it
becomes fully linked to the master. This latency can range from 20 ms to 2.5 seconds
Master Repeater
0 Low Power Mode Disabled
1
The radio LED’s are dimmed and the radio remains awake.
The radio’s data port is shut down if the RTS line is held low.
2
The radio LED’s are dimmed and the radio sleeps every other slot.
The radio’s data port is shut down if the RTS line is held low.
3
The radio LED’s are dimmed and the radio sleeps 2 of 3 slots.
The radio’s data port is shut down if the RTS line is held low.
4 thru 31
The radio LED’s are dimmed and the radio sleeps (n-1) of (n) slots.
The radio’s data port is shut down if the RTS line is held low.