Enabling Auxiliary Power Supply
INSTALLATION GUIDE
Room Controller 4 (NIRC4-xMN)
7 Enabling Auxiliary Power Supply
When using external power via a power injector (PoE Midspan), make sure that the jumper is present on the
board. See item 5 of Figure 3. NIRC4-xMN circuit board - back, page 8.
The jumper is only available on the NIRC4 with circuit board revision D or later.
If the module does not start when applying PoE, then you may need to remove the jumper.
Carefully remove the jumper with your fingers or a pair of tweezers.
Caution: Only use a power injector when connecting the room controller to a non-PoE LAN
switch port.
Connecting a power injector to a room controller that is connected to a PoE enabled LAN
switch port, may damage the room controller or LAN switch.
10 TD 93351EN / 21 March 2022 / Ver. B
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