Technical Parameter; Attention; Warning - C-Tel CPS-Z User Manual

2.2 Technical Parameter

Power Supply Voltage ----------------AC 220V or AC 110V, 50-60Hz
Power Dissipation ----------------------≤20VA
Exchange Mechanism-----------------Analog spatial division
Type of Telephone-----------------------Dual Tone Multi-Frequency
Communications Lines------------------108---2（1 for Ext.,1 for CO line）; 206---3; 308---7
IC Power Supply ------------------------±5V
Distortion ---------------------------------≤10%
Ringing Voltage -------------------------AC 70V±10% 50HZ
Crosstalk Attenuation -----------------≧70 dB
Transmission Loss---------------------- 0.37 dB

2.3 Attention

Please pay attention to the important items of installation:
1. The telephone exchange shall be installed in a stable indoor place with dry, ventilated environment. (Temperature
Range: 0-45 , Humidity Range: 20%
℃
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
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.
-80%.Avoid straight sun shine or in the environment of flammable or caustic gas.)
broadcasting (including short-wave).
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