Installing The Battery - Samsung DCS-408 Installation Manual

Samsung
DCS-408 & 408i Keyphone System
If the red LED lights but does not flash:
Turn off the power and remove the trunk board. Turn on the power again and see if
the red LED flashes.
If the red LED flashes, the trunk board is defective.
If the red LED still does not flash, the baseboard is defective.
Contact your dealer or the Samsung Technical Support department for advice.
If the red LED does not light:
Switch off the power and remove the power cable. Then remove the cover as de-
scribed earlier and inspect the AC power fuse (F1) next to the AC INPUT (power ca-
ble) connector.
If the fuse is normal, check the power supply and output voltage. If these are normal
and the red LED remains off, contact your dealer or the Samsung Technical Support
department for advice.

Installing the Battery

Selecting the Battery
You need a battery to operate the DCS-408/DCS-408i digital keyphone system if a power
failure occurs. The battery required is DC 48V (6AH~40AH). If an excessively large capacity
battery is used, this may cause a system breakdown. If the battery capacity is too small, the
system may not operate satisfactorily.
Battery Specification
Consider the following specifications when you select a battery.
Item
Minimum load current (A)
Maximum load current (A)
Rated output current (A)
Rated output voltage (V)
Current consumption of general telephone: 30mA
Charge Discharge
0
0.3
0.1
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