4
1.
The telephone exchange shall be installed in a stable indoor place
with dry, ventilated environment. (Temperature Range: 0-45
,
℃
Humidity Range: 20%-80%.Avoid straight sun shine or in the
environment of flammable or caustic gas.) Special telephone wire is
preferable.
2.
A marginal space around the exchange should be remained for heat
sink, inspection and maintenance of the system.
3.
A wall bore is available at the underside of mainframe for wall
installation. Desk installation is also admitted. But the contact of wall
bolt and circuit board inside the mainframe should be avoided.
4.
Please keep the exchange away from other equipment producing
large electromagnetic disturbance (such as motor and large
transformer).
5.
None of the wiring of any extension should share the pipeline with
power supply or antenna. Neither should the extension be close to
antenna for air broadcasting (including short-wave).
6.
Avoid damaging the power-supply cable. Keep it away from water.
Encountering the leakage of water cut off the power immediately.
7.
Please don't impact or shake the exchange at any situation. Don't
remove the exchange in working status.
8.
If the wiring pipeline of the extension is disturbed by electromagnetic
wave while substitution is unavailable in site, special insulating wire
for communication is suggested for substitution, also, the insulating
net of which should be grounded.
2.4 Warning
1.
The wiring should not be done in thundering.
2.
Avoid using telephone in thundering.
3.
Please don't use the telephone in flammable and leaking gas
environment.
4.
Unless the equipment is disconnected, please don't touch the broken
part of the wiring or any connection ends.
●
Note: Lightning stroke is an accident, which will not be regarded as
normal maintenance.
2.5 Installation procedure
2.5.1 Connecting C.O. lines & extensions to the unit:
1.
Please connect the monomer-crystal with EXT. line and C.O. line
separately;
2.
Make sure to avoid short circuit.
3.
Connecting extensions according to the in-dilated extension positions
and C.O. lines to the corresponding line ports on the unit.
2.5.2 Zero-load power-on inspection:
1.
The operation voltage of this product is AC220V or AC110V. Check
Summary of Contents for MK-208
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