Activating The Power Supply; Installing The Power Supply Unit; Check The Current Supply - Tunstall FlamencoIP Technical Manual

9. Activating the power supply

Prerequisite: Except the power supply unit, all cables are installed and all devices are
connected in compliance with the enclosed product leaflets.
Note: All product leaflets are presented in the appendix "Product leaflets" as of
page 113.
9.1

Installing the power supply unit

Before connecting the power supply unit you must check the cables to the power
supply unit for possible short circuits and earth interconnections.
Install the power supply unit acc. to the installation instructions coming with the unit.
This information is also shown in the chapter "Product leaflets" as of page 113.
9.2

Check the current supply

The operating voltage for the whole system is +24 V DC. Electric current for the sys-
tem components is supplied through power supply units.
Execute the checks and tests as shown below:
Check output voltage of the power supply unit
9.2.1
Use a voltmeter to confirm the output voltage of +24 V.
Check continuity of +24 V ring circuit
9.2.2
Disconnect one end of the ring circuit at the power supply unit. Switch the power sup-
ply unit on and measure the voltage at the open wires. If no voltage is measured, the
ring circuit is not closed or one of the conductors (+24 V or 0 V) is interrupted.
1st room terminal
Power
supply
unit
1st room terminal
Supply voltage to the room terminals
9.2.3
Activate 5 calls and 5 presence states for the ward which is to be checked. Use the
worst location, i.e. the most distant location from the power supply unit.
IP
Flamenco - Technical Manual - 00 8813 52, 03/18 (Rev. 1.0)
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