RavenXTV CDMA Sierra Wireless Cellular Modem
9
4.4 Power Considerations
A power cable included with the modem connects to the datalogger’s 12 V or
switched 12 V terminal. Connection to the switched 12 V terminal allows the
datalogger to switch power to the modem during scheduled transmission
intervals if desired. Connect the red lead wire to 12 V for constant power and
to SW12 for program-controlled power, and the black lead to G (ground). The
white wire lead has no function and can be ignored.
When using the switched 12 V terminal, the modem can typically be powered
with a BP12 battery, CH100 charger/regulator, and SP10 solar panel.
When using SW12V to power the RavenXTV, it is a good idea to have a
default.CRX (default.CR1 for a CR1000, default.CR3 for a CR3000, and so
forth) stored on the datalogger CPU: drive. This can be used to preserve critical
datalogger settings, such as SW12V, if the datalogger somehow ends up in a no
program state (for example, if a program with an invalid instruction is sent to
the datalogger). The default.CRX cannot be more than a few lines of code.
At power up, the datalogger loads default.CRX, if no other program takes
priority (see
Executable File Run Priorities
in the datalogger manual). It should
configure the appropriate settings to allow you to establish communication
with your datalogger and load a valid program.
The following program example can be used as a default.cr1 program to turn
SW12V on.
BeginProg
Scan
(1,Sec,3,0)
SW12
(1)
NextScan
EndProg
4.5 Automatic Provisioning (Activation)
It is recommended that the modem be provisioned and tested in
the office (assuming there is cellular coverage) rather than in the
field.
One of the special features of your RavenXTV is the ability to activate itself
automatically. When you first power on the RavenXTV, it will check to see if
it has been activated with account data. If it finds that it has not yet been
activated, the RavenXTV will attempt to retrieve the account data from the
Verizon network using Over-the-Air Service Provisioning (OTASP). If the
modem has previously been provisioned on another account, see Appendix
(p. E-1)
You need to have an account with Verizon before you
attempt automatic activation. If you have not ordered an
account from Verizon for your RavenXTV, it will not succeed
at activating.
1.
Attach the antenna to your RavenXTV.
NOTE
CAUTION
Summary of Contents for Sierra Wireless RavenXTV
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Page 36: ...Appendix B Configuring the Raven Modem for PPP B 4...
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