Bosch PRAESENSA, Руководство по установке

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PRAESENSA System controller | PRA-SCL/SCM/SCS | en 59
Bosch Security Systems B.V. Installation manual 2019.11 | V1.00 |
7.6.4 Ethernet network
The system controller has five Ethernet connection ports with a built‑in Ethernet switch,
supporting RSTP. Follow the procedure below to connect the system controller to a network
and other system devices.
PRA-...
1. Use shielded Gb-Ethernet cables (preferably CAT6A F/UTP) with RJ45 connectors to
connect the system controller to a network.
2. Connect to any of the five switch ports of the system controller.
–
The system controller supports Rapid Spanning Tree Protocol (RSTP) to enable the
use of multiple connections simultaneously for cable redundancy, e.g. to daisy‑chain
devices in a loop, with a maximum of
21 devices in a loop.
– RSTP can be disabled in the system configuration in case a (corporate) network does
not allow for this.
3. Port assignments:
–
For general purpose Public Address systems all ports 1‑5 can be used.
– For Voice Alarm systems use ports 1‑4 for (redundant) connections to the Voice
Alarm network part, including all other PRAESENSA devices. Use port 5 for auxiliary
connections, not related to the Voice Alarm function, like to a background music
server.
– The PRAESENSA system controller can be set up to work on two completely separate
networks simultaneously for fail‑over redundancy, supporting Dante glitch‑free audio
switching between both networks for continuous and uninterrupted audio
distribution in case of a network failure of one of the networks. In this mode, use
ports 1‑4 for the primary network (with RSTP) and port 5 for the secondary network.