Bosch PRAESENSA, Руководство пользователя

Страница: 58 / 166

58 en | Installation wiring PRAESENSA
2021.12.21 | V0.15b | F.01U.402.882
Underwriters Laboratories Listing Document (ULLD)
Bosch Security Systems B.V.
3.6.3 Parts included
The box contains the following parts:
Quantity Component
8 End of line device
8 Screw (Pozi Drive M4, 12 mm)
24 Nut (M4)
8 Lock washer
16 Screw (M4, 10 mm)
1 Safety information
No tools are provided with the device.
Parts check and identification
x8
x24 x8 x8 x16
A End-of-line device
8 Screw (M4, 12 mm). For junction box.
16 Screw (M4, 10 mm) For shelf
8 Lock washer For junction box.
24 Nut (M4)
3.6.4 Mounting
The PRA‑EOL‑US must be mounted in a UL‑listed junctions box with a minimum size of 4" x 4",
or in the Lowell 19"‑rack when connected for Class A wiring close to the PRA-AD60x amplifier.
i
Notice!
When selecting cables and wire gauge for loudspeaker connections, take into account the
length and loudspeaker load to avoid excessive power loss. Make sure that the signal level at
the end of the loudspeaker line has not dropped with more than 2 dB (this is approximately
20%), as this will also affect proper operation of the end-of-line device. Also see section
Cable type recommendations.
Mounting the PRA‑EOL‑US in the junctions box
i
Notice!
E.g., the TP404 junction box of the firm ETAN is UL‑certified and supports the required
mounting procedure.