Aastra OpenCom 100 series, Руководство по монтажу и пусконаладке

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Aastra 677x: Extensions and Accessories
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A system telephone requires a power supply unit if a key extension is installed. When
using PoE, an IP system telephone requires no power supply unit.
Connecting the Key Extension
CAUTION! Guard against static charges!
Static charges can damage the OpenCom 100’s electronic
components. Make sure you discharge yourself and your tools
before and during any installation work on the OpenCom 100
and any connected terminals. Use discharging underlays or
antistatic mats where possible.
Please note: Never attach a key extension to a system telephone that is al-
ready connected to OpenCom 100. Pull the network cable out of
the socket before screwing the key extension onto it.
Configuration Needs Power Supply Unit
U
pn
system telephone No
U
pn
system telephone with 1-3 key
extensions
Yes
IP system telephone Yes
IP system telephone with 1-3 key
extensions Yes
IP system telephone with PoE
(Power over Ethernet) No
IP system telephone with 1-3 key
extensions and PoE No