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Chapter 3
Installing the System
Input Power Condition
The input power of the SMG-3200 system needs to be supplied with the AC power.
In the SMG-3200 input power, an AC 110-240V should be supplied normal alternating current AC
power.
You should use the consent that supplies normal AC only for the SMG-3200 system. This consent
should not be used parallel with other devices. This consent should be located at a safe place to
prevent cutting off the power by mistake.
You should choose the power outlet suitable for the SMG-3200 capacity.
The standard of the SMG-3200 system is
y
Input : AC 110-240V
y
Output : -48V(25W), +5V(10W), +3.3V(15W)
Line Condition
You need to take careful note of the following when installing cables.
y When wiring at a place where there is high humidity, take steps to reduce this to acceptable
levels before proceeding with the work.
y
Take care of the cable to prevent it from being deformed or damaged.
y
Make the line’s curvature radius to be 6 times larger than the cable’s circumference where there
have no repeating curved points.
y
You must take extreme precaution in the cable’s insulation overlap cases where the copper wire
are exposed and get entangled.
y
The maximum allowable line’s loop resister is not more than 1.8KOhm. The line’s leak resistor
must be over 20KOhm, the earth’s leak resistor must be over 20KOhm. (These conditions may
be ignored only in special cases.)
y
Analog and Digital subscribers are recommended to use 24AWG line.
y
Do not place the line near a high voltage power line.