2N SIP Speaker Installation v2.1 - Manual (Page 15)

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
Power Supply Connection
2N SIP Speaker
®
can be fed using active network elements or PoE injectors via the
LAN interface. In case this option is unavailable, use a 12V DC/2A (Part No. 914102E)
power supply or another power supply on condition that you keep the nominal values
included in the Mechanical and Electrical Parameters subsection.
Connect the 12V DC power supply either to the back panel supply connector marked
, or terminals marked and . DC IN DC IN + DC IN –
Figure: Power Supply Connection
Warning
If you use an adapter other than the recommended one, do not exceed
the nominal supply voltage value of 12V. Also make sure that the supply
voltage polarity is correct. Exceeding nominal values and/or incorrect
connection may lead to irreversible damage of the equipment.