Several snom PA1 units can be connected to each other via the built-in switch and can be connected with any available loudspeaker on the market, thus enabling customers a great cost-saving contribution with already installed components. The individual network cables can be up to 100 meters long. The snom PA1 can be optionally installed on walls or ceilings. The snom PA1 can be power-fed either via conventional power supply unit connection or through Power-over- Ethernet (PoE). The specific addressing of individual snom PA1 control systems can be centrally configured via the deviceâ€™s web interface. Aside of the leading SIP protocol, the snom PA1 can also be addressed via Multicast, thus enabling one transmitter to simultaneously address many receivers. As with all other snom terminals, updates and configuration changes for the snom PA1 can be centrally effected over the server.