06
Electromagnetic Interference
Electronic elements including capacitance and inductance on the
device can be affected by external interferences, such as conducted
emission by capacitance coupling, inductance coupling, and
impedance coupling. To decrease the interferences, please make
sure to take the following measures:
Use the power supply that can effectively filter interference from
the power grid.
Keep the devices far from high-frequency, strong-current devices,
such as radio transmitting station.
Use electromagnetic shielding when necessary.
Lightening Protection
Extremely high voltage currents can be produced instantly when
lightning occurs and the air in the electric discharge path can be
instantly heated up to 20,000
℃
.
As this instant current is strong
enough to damage electronic devices, more effective lightning
protection measures should be taken:
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CooVox
IP Phone System
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CooVox
IP Phone System
07
Ensure the rack and devices are well earthed.
Make sure the power socket has a good contact with the ground.
Keep a reasonable cabling system and avoid induced lightning.
Use the signal SPD (Surge Protective Device) when wiring outdoor.
Note:
the device is specially designed for the usage of
communication operators’ computer room; please obey the
following requirements for installation and maintenance.
2.2 Installation Tools
Phillips screwdriver
ESD-preventive wrist wrap
Cables
2.3 Product Installation
Module Installation
This IP PBX can support installing twelve modules at the same time,
utmost 24 ports.
Optional modules are as follows.
2FXO
2FXS
FXOS
1.Check if the module is clean and intact.
2.Please ensure power of IP PBX is cut off.
3.Make sure the pins are correctly plugged in the jacks
+
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1
4
24
21
23 21 1
9 17 1
5 13 11 9 7 5 3 1
24 22 1
0 18 1
6 14 12 1
0 8 6 4 2