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Power Supply Unit
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Forum Phone 515/525/535: Extensions and Accessories
Forum Phone 515/525/535:
Extensions and Accessories
Power Supply Unit
The power supply unit 90035810 is required in the following cases:
●
when connecting a key extension to a Forum Phone 525/535 system tele-
phone (see also the chapter
●
when using the Forum IPhone 525/535 IP system telephones (with or
without key extension) where no Power over LAN is available in the
network
Connecting the Power Supply Unit to an IP Telephone
The connector for the power supply unit is in the bottom of the telephone’s
casing and is indicated by the symbol
.
1.
Plug the power supply unit’s RJ45 jack into the socket provided.
2.
Pass the power supply unit’s cable through the recesses on the underside
of the IP system telephone.
3.
Connect the power supply unit to the mains power supply (see
Key Extensions
Up to three key extensions can be connected to system telephones: either
three key extensions of the model Forum 500 Keypad Paper FP 525/535 or
three key extensions of the model Forum 500 Keypad Display FP 535. A
combination of these key extensions is, however, not possible.