Spelso L, Руководство по эксплуатации, Страница: 10 / 11

Noise, voice
interruption
1. The GSM aerial is
too close to the
gateway or analogue
telephone wires
(lines).
2. Low signal
reception.
3. Malfunctioning of
microphone/loudspea
ker of user's
telephone.
1. Fix the aerial at a distance from
the gateway and telephone wires
(lines).
2. Check signal level using the Net
LED indicator. Connect the aerial.
Move the aerial to an area with
better reception.
3. Replace the user's telephone.
8. Safety Instructions
Pay special attention to the safety instructions below:
– prevent dust, dirt and litter from coming in contact with the gateway
connectors;
– avoid mechanical impacts on the gateway, which can damage it;
– do not allow liquids to spill on the gateway; do not attempt to
disassemble the gateway on your own;
do not touch the contacts of the telephone connector with your fingers or
metal objects. This could cause a shock hazard or a gateway malfunction;
– use the power unit from the package; If the power unit from the package
cannot be used, use power units with rated characteristics only, and observe the
polarity – the central connection outlet should be marked with a "+";
– disconnect the power unit from the network when the gateway is not in
use; do not connect the power unit to the network if it is damaged; do not use the
gateway in humid conditions, in which relative air humidity is over 85% with no
sudden temperature changes, or over 60% with sudden temperature changes
(more than 20 ° С per hour).
Failure to follow the requirements above may cause product
malfunction.
9. Storage and Transportation
GSM gateways should be kept in their factory packaging in an enclosed
space within a temperature range from -50 ° С to +50 ° С , and a relative humidity
of up to 90%.
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