What are the limits and basic fault finding tips for a 1039/20 IPerVoice Riser PSU?

230vAC required

Output 54V DC 650mA 55 Watt

Thermally fused

Voltage test terminals

Video level adjustment (see page 5 of the installation manual attached)

 

Riser limits :-

When used with Signo audio handsets, Signo video monitors or Imago video monitors the maximum number of 4-way Decoders is thirty (120 monitors/handsets).

When used with Folio and Aiko video monitors the maximum number of 4-way Decoders is ten (40 monitors/handsets).

There is a 90 meter limit between the Power Supply Unit and the furthest monitor.

Maximum 9 x Power Supply Unit per riser


Basic Faulting Finding :-

Check with a Multi-meter there is correct 230vAC on the input if no voltage check the fused spur

Check with a Multi-meter there is 54vDC voltage on the output if no voltage remove output wait 2 minutes for the thermal fuse to cool.

Retest after 2 minutes if still no voltage and 230vAC is present change the unit, there is no programming required for this unit.

D
Dave is the author of this solution article.

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