Smart IP Manager - System Operating Manual
page 7 of 48
Gigabit switches are highly recommended. The use of 100 Mbps or lower IP switches is
discouraged as the small capacity will adversely effect the system performance.
We also recommend building a dedicated network (physical or VLAN) intended only for media
(audio and video) instead of using the same network for all traffic.
If there is also significant other traffic besides the media traffic on the network, we recommend that
Quality of Service support in the IP switches should be available and should be configured in use.
When multicast audio or video streams are present on the network, we recommend that switches
are configured to use the IGMP for managing load of the multicast traffic. Devices that have only
100 Mbps network interfaces can become overloaded in high channel count applications if this is
not done.
Further details regarding the selection and setup of IP switches can be found for example in
https://www.audinate.com/networks-and-switches.
All IP switches do not support the PoE
functionality needed by Smart IP loudspeakers and therefore can only be used with Smart IP
System when separate PoE power injectors are used.
3.1.2 PoE support
Smart IP loudspeakers receive power on the same cable with IP traffic. This technology is called
Power over Ethernet. Genelec Smart IP supports standard PoE (13 W power into the device) and
PoE+ (about 24 W into the device) power levels. An IP switch must support the IEEE 802.3at
standard to have the capability for PoE+.
A 15W or 30W of power budget for each Genelec loudspeaker is needed. This may have to be
manually configured into a PoE-capable IP switch. Genelec Smart IP loudspeakers also supports
automatic arbitration of the power budget with the capable IP switches.
Each IP switch manufacturer gives instructions on
how to turn on/off PoE in certain powers
how to manage PoE capacity in the IP switch
how to monitor the power consumption for each port
Consult the IP switch operating manual for these details. These help you ensure and understand
that the PoE supply has been configure correctly.
The loudspeaker communicates with the PoE capable IP switch automatically to set the PoE power
on and to the correct capacity. This is the basic PoE activation mechanism. This may result in only
15 W being available for the loudspeaker. Certain IP switches require also the use of LLPD
protocol to obtain the full 30W power out from the IP switch.
When IP switch uses LLDP negotiation between the switch and the loudspeaker it should work
entirely automatically. If you experience problems in enabling the PoE power, it may be necessary
to edit the LLDP settings or even entirely turn off the LLDP negotiation.
