2N Helios IP Vario, Руководство по установке

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2N TELEKOMUNIKACE a.s., www.2n.cz 49/97
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Caution
The modules ending with U (i.e. 91371…U) can only 2N Helios IP Vario
®
be equipped with the card reader.
Card Reader Mounting
Power off . 2N Helios IP Vario
®
Use a hexagonal wrench to unscrew and remove the metal cover.
Use a cross-head screwdriver to unscrew and remove the plastic cover.
Connect the reader module into the basic unit bottom 2N Helios IP Vario
®
connector making sure that the microphone cable lies under the module.
Use the enclosed screws to fix the reader module to the 2N Helios IP Vario
®
plastic base.
Connect the wires for the reader module interface(s) if necessary.
Replace and fix the plastic cover using cross-head screws.
Replace and screw back the metal cover.
Grounding
We recommend to ground the intercom in order to improve the static electricity
resistance. For proper grounding you need a cable of the minimum cross-section of 4
mm2 and a cripm eye.