Bosch PRAESENSA PRA-SCL Configuration Manual page 44

44 en | Configure the system
Item
Dual network (primary:
ports 1‑4 / secondary:
port 5)
Submit
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2020-09 | V1.20 | PRAESENSA 1.20
* A glitch is in this case a short‑lived audio fault in the systems network audio path, such
as very short audio disturbance, distortion, drops. By selecting this option a possible
glitch could be avoided, reduced and/or not noticed only when the network is physical
redundant connected to port 5.
* External (non) PRAESENSA network devices must support glitch free and it must be
enabled in their configuration.
Value Description
for cable redundancy, e.g. to daisy‑chain
devices in a loop, with a maximum of 20
devices in a loop. RSTP can be disabled in
case a (corporate) network does not allow
this. See System settings, page 69
Ports 1‑5 could be each daisy‑chain
connected to network devices in the system.
Notice that port 5 is possible already
dedicated used for connection of the
configuration computer.
Selection Select this option for Voice Alarm systems
using 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.
PRAESENSA can be set up to work on two
completely separate networks simultaneously
for fail‑over redundancy, supporting 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.
Notice that port 5 is possible already
dedicated used for connection of the
configuration computer.
Button Click the Submit button to store the settings:
Notice that you always have to Save the
configuration. See Save configuration, page
102
Configuration manual
PRAESENSA
Bosch Security Systems B.V.