Optional Configurations
Out-of-box, the XTend-NEMA RF Modem is configured to provide immediate wireless
links between devices. The modem's default configuration supports a wide range of
RF communications.
If the RF Modem must be configured to support specific needs of a data system,
many programming options are available. The RF modem recognizes an extensive
set of AT and binary commands. Several of the commands can be sent to the
modem using the DIP Switch that is located inside the weatherproof enclosure.
Restoring Modem Defaults
Other Configuration Options
Using the DIP Switch to configure the modem is one of several ways to configure
modem parameters. Other programming options are available such as using the
X-CTU Software "Terminal" and "Modem Configuration" tabs. Binary programming
is also supported.
Since the XTend-NEMA and XTend-PKG-R RF modems operate and behave the
same, refer to the XTend-PKG-R RF Modem product manual for more information
about supported configuration options.
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Using the RF Modem DIP Switch
The DIP switch allows users to configure the several RF modem settings.
Figure 4. DIP Switch Se�ings (Se�ings applied only when powering on)
To Restore Defaults
(DIP Switch Method):
Serial Interface
Switches 1 & 2
1 2
TX/RX Mode
Switches 5 & 6
5 6
O
N
1 2 3 4 5 6
RS-485/422
Termination
(Optional) Switches 3 & 4
= 2-wire RS-485
Termination
= 4-wire RS-485/422
Termination
None
=
3 4
= Point-to-Point
= ON (up)
= OFF (down)
= Restore Defaults
= 4-wire
RS-485/422
= RS-232
= 2-wire RS-485
= not used
= User Defined
Multipoint-
Base
=
= Multipoint-
Remote
1. Set switches 1 & 2 of the DIP Switch to
their ON (up) positions and the remaining four
switches to their OFF (down) positions.
2. Turn off, then on again, the power supplying the
XTend-NEMA RF modem.
If the XTend Modem
is not responding or
cannot enter into
Command Mode, try
restoring the modem
to its original default
parameter values.
Each time the RF modem is powered on, the modem is automatically configured
according to the positions of the DIP Switch. For example, the default positions
(switches 2 and 5 are ON (up)) cause the DT and MY parameters to be set to
specific values each time the RF modem is powered up.
To disable automatic configurations (so modified parameters persist in the modem
registry on subsequent power-ups), set swiches 5 and 6 to their ON (up) positions.
