Digital Watchdog D2365T Manuel d'installation télécharger pdf (Page 18)

Duet2 D2600 / Duet3 D2650 Installation Manual – EU-D2600-D2650-INST/A10/v1 - 18

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19.2 Operation

On the metal boxed socket, where the LAN cable connects are yellow and green LEDs.

When properly connected, the yellow LED will be on solidly and the green LED will blink on once every

1-2 seconds.

Note: Any extra inputs or outputs on the LAN card are not available for use with the Duet. The 4

inputs and 4 outputs are on the Duet’s main board.

20. System Power Supply and Battery

The Duet requires a supply of 12-13.8 volts DC at 60mA in standby and 100mA when activated, and a

battery capable of delivering bursts of up to 2A when the radio module is signalling. The installer must

ensure that the alarm system’s power supply is rated to provide adequate power for this apparatus

and for any other auxiliary apparatus drawing power from the alarm system’s power supply.

The power supply battery will be automatically tested with a short duration high current pulse every

hour. If the battery fails this test, a low battery signal will be transmitted to the Alarm Receiving Centre.

If the Duet 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.

Only power supplies conforming to EN60950 or International Safety Standards should be used with

this apparatus. In Europe the power supply must meet the requirements of the European Directives

and carry the EC symbol.

If the supply voltage falls to the ‘low battery voltage’ limit, the Duet will send a ‘low-battery’ signal to

the ARC. When power is restored above 12.0 volts a test call (i.e. a battery voltage restore signal) will

be sent to the ARC.

Note: When the supply voltage to the Duet continues to fall below 10 volts, there will be insufficient

power for the unit to operate correctly, i.e. it will not send alarm calls to the ARC or send SMS

messages to mobile phones.

Fig 5

21. NVM Programming

The operating parameters for the Duet, e.g. telephone numbers, are stored in the NVM (Non Volatile

Memory). The NVM can be programmed by downloading to the Duet via GSM or by using the D2454

NVM programmer connected to a PC.

Refer to the D2454 Programmer Manual for full programming details.

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Digital Watchdog D2365T Manuel d'installation Page 18