System Power Supply and Battery
DualCom requires a supply of 9.0 to 30.0 volts DC.
At 12 volt supply, the quiescent current is 30mA.
At 24 volt supply, the quiescent current is 15mA.
Dualcom requires 100mA for the few seconds that it is activated.
The CS5351 Expander Card and the CS5355 LAN(IP) Card requires a supply of
9.0 to 30.0 volts DC.
At 12 volt supply, the quiescent current is 20mA.
At 24 volt supply, the quiescent current is 10mA.
Note: The supply voltage to the DualCom must not exceed +15 volts
when:
The CS2325 Plug-on Adapter is used, or
The CS2351 Plug-on Expander Board is used, or
The CS2355 Wired LAN Card is used.
The installer must ensure that the Alarm System power supply(s) is rated to
provide adequate power for this apparatus and for any other apparatus draw-
ing power from the Alarm System power supply(s).
Only power supplies conforming to EN60950, EN41003 or International Safety
Standards and carrying the CE mark should be used with this apparatus.
The Power Supplies’ battery must be suitable to support operation for the speci-
fied time. Refer to the EN50131 Power Supply standard for the Grade of the
installation.
If DualCom receives its power from a Power Supply that is additional to
the alarm system, ensure that the 0 volt connection on the additional
power supply is connected to the 0 volt connection on the alarm system.
If the supply voltage falls to the ‘low supply voltage’ limit, DualCom will send a
‘low-battery signal to the ARC. The ‘low supply voltage’ limit is preset to 11
volts. When power is restored above 12.0 volts a test call (or battery voltage
restore signal) will be sent to the ARC.
If the supply voltage continues to fall below 9 volts there will be insufficient
power to operate the DualCom.
Note: The ‘+’ terminal (next to the Aux relay terminals) is a voltage output to
aid input triggering only. This terminal is NOT the supply connector. See Fig
2 & 27 and Appendix 2.
41
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