Samsung iDCS 100, Раздел установки, Страница: 83 / 115

iDCS 100 INSTALLATION
TECHNICAL MANUAL PART 7 JUNE 2002
7.4
for VM/AA operation. Use one pair twisted #24 AWG or #26 AWG jumper wire to cross-
connect these SLI circuits to the VM/AA system
(see Figure 7–11).
Program these ports for VM/AA use in MMC 207 and set VM/AA options in MMC 726 .
As default MMC 726 comes programmed to interface with StarmaiL. See the Standard
Telephone User Guide for feature codes and instructions (how to light message lights
etc.).
7.10 CONNECTING SYSTEM BACKUP BATTERIES TO
THE iDCS 100 POWER SUPPLY
The iDCS 100 power supply contains a monitoring circuit to switch the system to
customer provided 48VDC batteries when AC power is interrupted. Calls in progress
are not disconnected. The power supply circuitry monitors and recharges batteries as
needed.
Connect four 12V batteries or eight 6V batteries in series. Any NICAD or lead acid (car
or motorcycle type) battery can be used if its rating is not less than 6AH (amp hours)
but not more than 40 AH. The batteries must be located within three feet of the KSU.
Use the factory-supplied wire harness with 36" red and black leads to connect batteries
(see Figure 7-12) .
Observe the following precautions when installing batteries:
a. Make sure the batteries you install conform to local building, fire and safety codes.
Some battery types emit hydrogen gas during the charging state and may require
venting to fresh air.
b. Do not place batteries directly on a concrete floor. This causes them to discharge
very quickly.
c. Follow the battery manufacturer’s recommended installation and maintenance
procedures.
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