Specifications

D9142F Operation and Installation
F01U036364-03 Page 4 © Bosch Security Systems, Inc.
To attach the enclosure to the wall, use mounting hardware that is capable of supporting 55 pounds of equipment. You
may need to mount a plywood sheet to the wall in order to support the weight of the power supply and batteries.
1. Position the enclosure on the surface so that is level.
2. Use the holes to mark the location for anchors.
3. Install anchors into the surface.
4. Using the three top anchor locations, drive the screws about 3/4 of the way in.
5. Hang the enclosure on the partially driven screws.
6. Secure the enclosure onto the surface with screws.
7. Adjust the enclosure so that it is again level and, while holding the enclosure in a level position,
completely tighten the screws. Install screws in holes located toward the bottom of the enclosure.
8. Hang the D9142F onto the hangers at the top of the enclosure.
9. Drive a screw into the tab at the bottom center of the D9142F to secure the mounting skirt to the
enclosure.
Installing the D9142M Power Supply Board
After mounting the D8109L enclosure, locate the D9142M and remove it from its packaging. In this box you should
find three wiring harnesses. Save these harnesses. They will be used later in the installation.
• Battery Wiring Harness with connector
• Communicator Output Harness, 5 conductors
• Panel Power Harness, yellow wires, two conductors
The D9142M power supply mounts in the D8109L enclosure on the mounting tabs provided. Hook the skirt on the
top two Connect power to the 120 VAC input terminals, following these steps:
1. Remove the knockout and install appropriate hardware for connection to conduit.
2. Remove the protective terminal cover marked CAUTION 120 VAC.
3. Pull the 120 VAC Power wires through the conduit hardware installed in the knockout.
4. Connect the wires as marked on the board.
5. Replace the protective cover over the 120 VAC Input terminals.
120 VAC Fuse
The 120 VAC fuse (F1) is located on the lower right-hand corner of the D9142F, above the 120 VAC terminals (see
figure 3). Fuse F1 protects the D9142F and D1601 from damage due to power surges or over loads.
Fuse F1 is a type 3 AG, 4 Amp, 250VDC slow blow fuse. Radionics part number 57-01338-004. Danger: Turn off
the 120 VAC circuit breaker before testing or replacing Fuse F1. Leaving the 120 VAC circuit breaker on can
cause injury or death by electrocution.
If the green AC power LED is off, the 120 VAC circuit breaker is in the ON position, and the building lights and other
electrical devices still operate, Fuse F1 may be open. To replace the fuse, follow these steps
:
1. Turn OFF the 120 VAC dedicated circuit breaker.
2. Remove the protective cover from Fuse F1.
3. Pull the fuse from the socket.
4. Using a Volt/Ohm meter verify the 120 VAC has been removed and then test the resistance of the fuse. If
the fuse is open, replace with a new fuse matching Fuse F1’s specification. If the fuse is closed, the
problem may be elsewhere. Call a licensed electrician to troubleshoot any electrical problem.
5. Insert the fuse into the F1 socket.
6. Replace the protective cover.
7. Turn the 120 VAC circuit breaker ON.