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9XTend? ? OEM ? RF ? Module ?‐? Product ? Manual ? v2.x4x ? [2007.01.04]
Appendix ? B: ? Development ? Guide
Automatic DIP Switch Configurations
Each time the module assembly is powered-on, AT commands are sent to the on-board RF module
as dictated by the positions of the DIP switches. DIP switch configurations are sent automatically
during the power-on sequence and affect module parameter values as shown in the table below.
Figure ? B ‐ 04. XTIB ‐ R ? DIP ? Switch
Table ? B ‐ 02. Power ‐ up ? Options ?‐? Commands ? sent ? to ? the ? module ? as ? result ? of ? DIP ? Switch ? Settings
(SW ? = ? DIP ? Switch)
Switches
Condition
Behavior
Commands Sent During Power-up
Switches 1 & 2
(Restore Defaults /
Serial Interfacing)
Switches 5 & 6
(TX/RX Modes)
If SW1 & SW2 are
ON (up)
If SW1 is ON (up)
If SW1 is OFF (down)
If SW5 & SW6 are
OFF (down)
If SW5 is OFF (down)
& SW6 is ON (up)
If SW5 is ON (up) &
SW6 is OFF (down)
Restore Defaults
RS-232 Operation
RS-485/422
Operation
Multipoint Base
Multipoint Remote
Point-to-Point
ATRE
ATWR
ATCS 0
ATCS 3
ATMY 0
ATDT FFFF
ATMT 3
ATAM
ATDT 0
ATMT 0
ATRR A
ATAM
ATDT FFFF
ATMT 3
(Restore Defaults)
(Write defaults to non-volatile memory)
(RS-232, CTS flow control)
(RS-485 or RS-422 Operation)
(Source Address)
(Destination Address)
(Multi-Transmit option)
(Auto-set MY, MY = unique)
(Destination Address)
(Multi-Transmit option)
(Retries)
(Auto-set MY, MY = unique)
(Destination Address)
(Multi-Transmit option)
If SW5 is ON (up) &
SW6 is ON (up)
User Defined
Processor is disabled and AT Commands are not sent to
the module (except for CS command as shown below.)
IMPORTANT: To avoid overwriting previously stored custom configurations (due to the automatic con-
figurations that take place each time the RF module is powered-on), it is necessary to disable a pro-
cessor located inside the module.
To disable the processor, turn switches 5 and 6 ON (up). When switches 5 and 6 are ON, only the CS
command is sent [refer to table below].
Table ? B ‐ 03. User ? Defined ? Mode ? (Switches ? 5 ? and ? 6 ? are ? ON ? (up))
Only DIP Switches ON (up)
SW1, SW5 and SW6
Condition
If CS = 0, 1, 2 or 4
If CS = 3
Command Sent During Power-up
CS parameter remains the same
ATCS 0 (RS-232 operation, CTS flow control)
SW2, SW5 and SW6
SW5 and SW6 only
If CS = 2
If CS = 0, 1, 3 or 4
If CS = 2
If CS = 0, 1, 3 or 4
ATCS 2
ATCS 3
ATCS 2
ATCS 3
(GPO1 high)
(RS-485/422 Operation)
(GPO1 high)
(RS-485/422 Operation)
Note: ? The ? results ? of ? SW ? 2, ? 5 ? & ? 6 ? ON ? and ? SW ? 5 ? & ? 6 ? ON ? are ? the ? same.
? ? 2007 ? MaxStream, ? Inc.
????? 61
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