Samsung iDCS 100 Installation Section page 13

iDCS 100
TECHNICAL MANUAL
• FUSE
CAUTION:
1. For continued protection against risk of fire, replace only with same type and rating
of fuse.
2. DISCONNECT POWER BEFORE CHANGING FUSE.
The current limitations and maximum overcurrent protection for
! ! ! ! telecommunication circuits reference to the specific power supply or
current limiting device provided with the product detailed instructions
showing the proper method of installation and connections to the
telecommunication wiring system.
• POWER SUPPLY UNIT (iDCS PWR)
The iDCS PWR is the power supply for the iDCS 100 KSU. The iDCS PWR can
accommodate a maximum of 48 keysets without an SVMi-8 and 40 keysets with an
SVMi-8. The power supply is permanently installed in the KSU, and is protected by a
metal cover. The power supply should only be removed by a qualified service
personnel.
WARNING: DO NOT CONNECT AC POWER TO THE SYSTEM
Up Procedures)
• EXTERNAL –48VDC BATTERY SOURCE
CAUTION: To reduce risk of fire and injury to persons, use only a sealed nickel
cadmium or lead-acid battery supply capable of handling a charge current of 0.45 A,
a charge voltage of –56 VDC and a discharge rate of 45 Ah."
The iDCS 100 provides for connection of an external battery plant (i.e. to provide
–48VDC to power the system). The iDCS PWR provides -56VDC at 0.4 amperes
charging current (i.e. when AC power is present) which allows for float charging from
the iDCS 100 to emergency backup batteries. The iDCS 100 can also run without AC
power on a –48VDC battery system or rectifier. There should be no more than a -
0.5VDC drop in voltage from the iDCS 100 and the batteries. Ensure polarity prior to
connecting the external –48VDC power source to the system.
CAUTION:
Double pole / neutral fusing
+
ATTENTION:
Double pole / fusible sur le neuter.
2.5
INSTALLATION
PART 2 JUNE 2002
(see Section 4, Power
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