XStream-PKG-R™ RS-232/485 RF Modem – Product Manual v5.x00
4.
RF Modem Configuration
4 .1 . Au t om a t ic D I P Sw it ch Con figu r a t ion s
Each t im e t he RF Modem is pow ered- on, int elligence on t he XI B- R I nt er face Boar d ( RS- 232/ 485
int er facing boar d locat ed inside t he RF Modem ) sends AT Com m ands t hat progr am t he RF Modem
based on posit ions of t he DI P Sw it ch. Aut om at ic configur at ions t hat t ak e place dur ing t he pow er -
on sequence affect st or ed RF Modem par am et er v alues as show n in t he t ables below .
Figure 4.1.
RF Modem DIP Switch
Table 4.1. RF Modem Power-up Options
(J7 jumper and Config Switch)
Condition
Behavior
If J7 is populated
Processor is disabled and AT Commands are not sent to the RF Modem
If Config Switch is pressed
Processor is disabled and RF Modem enters into AT Command Mode
If J7 is NOT populated and Config Switch
is NOT pressed
Execute logic as shown in table below.
Table 4.2. AT Commands Sent as result of DIP Switch Settings
(SW = DIP Switch)
Condition
Behavior
Restore Default Parameter Values of the RF Modem
If SW1 and SW2 are ON (up)
AT Commands sent:
ATRE (Restore Defaults) Command
ATWR (Write) Command
Serial Interfacing Options
If SW1 is ON (up)
AT Commands sent:
ATCS 0 (RS-232 Operation: CTS function for CTS line,
DB-9 pin 8)
ATCD 2 (DO3 - RX LED = low)
If SW1 is OFF (down)
AT Commands sent:
ATCS 3 (RS-485 or RS-422 Operation)
ATCD 2 (DO3 - RX LED = low)
Parity Options
If SW5 and SW6 are OFF (down)
AT Commands sent:
ATNB 0 (parity = none)
If SW5 is OFF (down) and SW6 is ON
(up)
AT Commands sent:
ATNB 1 (parity = even)
If SW5 is ON (up) and SW6 is OFF
(down)
AT Commands sent:
ATNB 2 (parity = odd)
If SW5 is ON (up) and SW6 is ON (up)
AT Commands sent:
ATNB 5 (parity = 9th bit data over-the-air, v4.30 only)
Exit AT Command Mode
Always
AT Commands sent:
ATCN (Exit AT Command Mode)
IMPORTANT: To avoid overwriting previously stored custom configurations (due to the automatic
configurations that take place each time the RF Modem is powered-on), it is necessary to disable a
processor located on the XIB-R interface board. To disable the processor, populate the J7 jumper of
the XIB-R Interface Board. By default, J7 is not populated.
© 2014 Digi International Inc.
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