Bosch PRA-EOL End-of-line device, Device for loudspeaker line integrity supervision in Public Address and Voice Alarm applications, Reliable solution for (long) loudspeaker lines, Fault detection in amplifier without additional wiring, Low level, high frequency pilot tone, IP30.

Bosch PRA-ES8P2S Managed 10‑port Ethernet switch with PoE and SFP, 8 x Gigabit ports with PoE, 2 x Gigabit combo ports with SFP sockets for glass fiber transceivers, Network redundancy via STP/MSTP/RSTP, Dual power supply connections, Fault relay, Operating voltage (VDC): 16.80 VDC – 62.40 VDC, Power consumption (W): 140 W maximum, PoE/PoE + power budget: 120 W maximum, PoE/PoE + power per port: 20 W maximum, PoE/PoE + standard: IEEE 802.3 af/at, Switch type: Managed, MAC table size: 8K, Watchdog; RSTP; Rate limiting; Storm control, IEEE 802.1Q VLAN, IGMP snooping v1/v2/v3, MLD snooping, IGMP immediate leave, QoS, IP30.