Campbell Com100 Instruction Manual - 8. Troubleshooting
COM100 Cellular Phone Package
12
When initiating a call from the datalogger (Instruction 97), the
transceiver must be switched on at least 15 seconds before the
call is placed.
8. Troubleshooting
Below are common things to check when trying to troubleshoot a cellular
phone problem.
1.
No-Answer. You receive a programmed message after several rings that
the cellular customer you are trying to reach has their phone turned off or
has traveled outside of the coverage area.
Q.
Has the cellular phone been programmed by your local service provider
with the telephone number?
Each cellular telephone has a telephone number and an Electronic Serial Number
(ESN) that is unique to each phone to prevent unauthorized use. The telephone
number must match the assigned the ESN. If you try to use a cellular phone that
has not been programmed with the telephone number, the phone will
automatically become locked and will require you to take it to your service
provider to be un-locked.
Q.
Do you know what your system battery voltage is and the type of batteries
being used?
The COM100 and Datalogger requires a nominal supply voltage of 12VDC.
The system will operate between 10 and 16VDC. Since the COM100 draws
1.8 Amps during transmission, lead acid or gel cell type of batteries (PS12LA,
BP12, BP24) must be used. Do not use alkaline batteries (CSI Model BPALK
or PS12ALK) as a power source for the cellular phone. Alkaline batteries have
a high internal resistance and cannot source the high current requirements of
the COM100.
Q.
Is the Campbell field modem plugged into the 4 pin connector on the
external RJ11C interface box that is attached to the side of the cellular
phone?
The COM100 cell phone and RJ11C interface box both have an 8-pin
connector that is for the digital handset. Do not connect the field modem to
these ports, as your system will not work in this configuration. The 4-pin
connection on the RJ11C Interface box is the only compatible port for use with
the field modems.
Q.
Is the Red LED on the RJ11C Interface box turning on after power up?
The RJ11C interface box has a switch to allow you to manually turn the phone
on and off. This is a momentary switch with a Red Light Emitting Diode
(LED) that will flash for about 10 seconds after powering up. The Red LED
should remain on continuously after the COM100 has located the cellular
tower. If the phone is not turning on, press this switch to see if the LED comes
NOTE