Bosch PRAESENSA, Руководство пользователя

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PRAESENSA Installation wiring | en 119
Bosch Security Systems B.V.
Underwriters Laboratories Listing Document (ULLD)
2021.12.21 | V0.15b | F.01U.402.882
– Connect two network cables to the PRA-CSLW. See Power over Ethernet
connections, page 119.
– Provide strain relief of network cables using cable ties secured to the back of the
backbox.
– IMPORTANT : Re-install the ground cable.
17. Secure chassis assembly to backbox using two wingnuts removed in step 4.
18. Replace and secure outer plexiglass door:
– Slide outer plexiglass door over hinges on left side of the backbox.
– IMPORTANT : Re‑install the ground cable.
– Close door, lock by turning key counter clockwise 90 degrees.
– Remove key.
3.12.7 Power over Ethernet connections
The First responder panel has two Ethernet connection ports with a built‑in Ethernet switch,
supporting RSTP for Class N pathway realization. The First responder panel is a PoE Powered
Device (PD). It provides the correct signature and classification to power sourcing equipment
(PSE), so that a PSE sources the right amount of power to a PD over the Ethernet cables.
Although it is sufficient to provide PoE power to only one port, both Ethernet ports take PoE
power for cable redundancy and supply redundancy. For maximum protection it is advised to
connect each port to a different, independent PSE, such as a PRA-MPS3 multifunction power
supply (ports 1 and 2) or a PRA-ES8P2S Ethernet switch (ports 1‑8). In case one of the
connections fail, or one of the PSE sources fail, the operation of the First response panel is
not affected. With both connections to the same PSE, there is still connection redundancy but
no PSE redundancy.
See also
Multifunction power supply, large | PRA-MPS3, page 64 and Ethernet switch | PRA-
ES8P2S, page 99.
The ports of the First responder panel can be looped through to another PRAESENSA device,
but at least one port must be connected to a PSE to power the First responder panel (PRA-
CSLW) and its extensions (PRA-CSE). With only one port connected to a PSE, there is no
connection redundancy.
The First responder panel (PRA-CSLW) ports cannot source PoE power to subsequent devices,
such as another First responder panel.
To connect the First responder panel, follow the procedure below:
1.
Remove the cable cover at the bottom of the call station (PRA-CSLW) using a TX10
screwdriver.
–
If required, get access to the two screws via the holes in the table stand bracket.
2. Use one or two Gb‑Ethernet cables with RJ45 connectors to connect the call station to a
PSE port, with PoE enabled.
3. Put back the cable cover with the two TX10 screws.