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MAINTENANCE
The UO-4S must be maintained at least annually by electricians with the third or higher electric
safety qualification level.
To maintain the panel, do the following:
a)
Ensure the panel enclosure is not damaged and is mounted securely; ensure the wire terminals
are fastened properly;
b)
Remove dust, debris, and corrosion from the contact connections and the panel enclosure;
c)
Inspect panel operability by testing panel indication in accordance with Table 1 and panel
sounder performance in accordance with Table 2.
Table 9. Troubleshooting
Problem
Possible Cause
Solution
POWER LED is off when the
UO-4S is switched on
No power is applied
Check power voltage to be applied to
the UO-4S
POWER LED flashes with amber
two times per second
Input power voltage is exceeding
15 V or is below 10 V
Check the level of the supply voltage
COM FAULT LED illuminates
with amber
No communication with the devices
or the control panel over the RS-485
interface
For a slave mode check the operation
mode of the control panel. For the
Master mode check the XT2 jumper
to be open
GSM LED doesn’t illuminate
SIM card not inserted or failed
Check the SIM card
SIM card is locked to ask PIN or
extra options (such as SimToolKit)
are activated for it
Turn off asking the PIN and extra
options for the SIM card by means of
a mobile phone or the carrier
COM FAULT LED pulses with
amber two times per second
•
SIM card cannot register in the
mobile network
•
No connection with the subscriber
(message failed to be delivered)
•
No connection with the central
station
•
Wrong phone number of the SMS
center is entered
•
Account balance is lower than a
minimum value
•
Make sure the SIM card is inserted
into the relevant slot
•
Check the antenna or connect an
external one
•
Check the signal level at the
mounting location of the UO-4S
by means of a mobile phone
•
Enroll the phone number of the
SMS center into the SIM card as
described in the phone manual (use
a cell phone to setup)
•
Eliminate the financial debt
POWER LED flashes with amber
once per two seconds
Mains power applied to the RIP has
failed (signal from contacts 5 and 6)
Repair mains power of the RIP
