PHONECELL SX4E TROUBLESHOOTING
Telephone Service is Not Working
If the telephone service is not working, first check the operation of the telephone equipment and
wiring connected to your Phonecell. Test the equipment on a different service or piece of equipment
to ensure proper operation, or connect a known good telephone device to the phone port on the
Phonecell unit. This will verify the condition of the telephone equipment and the internal wiring of the
telephone service to ensure that it’s working properly. If the telephone system or wiring is not work-
ing properly, replace or repair the equipment as required. Otherwise, contact your cellular provider
or your authorized Telular distributor.
Unable to Receive Incoming Calls
If more than one telephone or telephone device is connected to your Phonecell, make sure that all
devices are “on-hook” (hung up). If one extension is “off-hook” (off its cradle), none of the exten-
sions on your phone line will ring when an incoming call occurs.
Moisture or Ventilation Problems
Visually inspect your Phonecell’s unit enclosure. Moisture can damage the equipment. Ventilation is
also very important. If there are moisture or ventilation problems, move your Phonecell to correct as
necessary. See the Temperature Environment section of this manual.
No Power
The power LED lamp on the front of your Phonecell SX4e indicates the unit’s power condition. If the
LED is GREEN, your Phonecell is receiving power. If the power cord is connected and the LED
lamp is not lit, the Phonecell is not receiving power. Verify that the AC power source and its corre-
sponding circuit breaker are functioning properly.
Battery Backup Failure
If you’re using the battery, the unit must be connected to AC power for at least 15 hours to fully
charge the battery before it will provide back-up power to your Phonecell. Verify that the battery has
been charged for at least 15 hours and that the power source and its corresponding circuit breaker
are functioning properly. Then, examine the battery for physical damage and corrosion. Replace the
battery if necessary.
GENERAL INFORMATION AND SAFETY
Your Phonecell SX4e Fixed Wireless Terminal (FWT) functions as both a radio transmitter and
receiver. When it is ON, the FWT receives and sends out radio frequency (RF) energy. The CDMA
800 unit operates in the frequency range between 824 and 894 MHz, and the CDMA 1900 between
1850 MHz and 1990 MHz. Both employ commonly used phase/frequency modulation techniques.
When you use your Phonecell SX4e, the cellular system handling your call controls the power level
at which your unit transmits. Nominal power output is 230 mW.
Exposure to RF (Radio Frequency) Energy
In 1991, the Institute of Electrical and Electronics Engineers (IEEE), and in 1992, the American
National Standards Institute (ANSI), updated the 1982 ANSI Standard for safety levels with respect
to human exposure to RF energy. After reviewing the available body of research, more than 120 sci-
entists, engineers and physicians from universities, government health agencies and industry devel-
oped this updated Standard. In March, 1993, the U.S. Federal Communications Commission (FCC)
proposed the adoption of this updated Standard.
The design of your Telular Phonecell SX4e complies with this updated Standard. Of course, if you
want to limit RF exposure even further than the updated ANSI Standard, you may choose to control
the duration of your calls and operate your phone in the most power-efficient manner.
SX4e CDMA 800 • SX4e CDMA 1900
15
Technical Manual
WARNING!
Your Phonecell must be placed or mounted on a flat surface to allow proper
ventilation. Do not block the air vents or the space beneath your Phonecell as
this could cause the unit to overheat and fail.
!
WARNING!
Only Authorized Service Personnel should remove the cover of your
Phonecell. For further assistance, contact your Authorized Telular
Representative. Please have your unit’s model and serial number ready.
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