1.Locate the center point of the mounting location and insert the compass tool. Draw a circle.
2.Cut the circle out of the ceiling.
3.Use the mounting ring as a template and mark the screw hole pattern onto the mounting surface. Prepare the holes.
4.Install the mounting plates. Use the eight
a. Line up the mounting ring with the eight fastener holes.
b. | Feed one back mounting plate through the hole in the ceiling | and line up with four fastener holes. |
c.Install fasteners through the mounting ring , ceiling, and out the back mounting plate .
d.Install second back mounting plate .
5.Attach the conduit fitting, lock nut, and safety chain bracket. Install a safety chain/cable (not supplied) that will support up to 16 pounds (7.3 kg).
6.Open the hinged door to the back box. Push the tab lock towards the wall of the unit and lift the door open.
Pull wiring into the back box through the conduit fitting. Refer to Table A, Table B, and Table C for wiring distances.
Table A. Video Coaxial Cable Requirements
Cable Type* | Maximum Distance |
|
|
RG59/U | 750 ft (229 m) |
|
|
RG6/U | 1,000 ft (305 m) |
|
|
RG11/U | 1,500 ft (457 m) |
|
|
*Cable requirements: 75 ohms impedance
Table B. 24 VAC/24VDC Wiring Distances
The following are the recommended maximum distances for 24 VAC and 24 VDC applications and are calculated with a 10 percent voltage drop. (Ten percent is generally the maximum allowable voltage drop for AC- or
AC/DC |
| Wire Gauge |
| |
Total VA/ | 20 AWG | 18 AWG | 16 AWG | 14 AWG |
Total Watts | (0.5 mm2) | (1.0 mm2) | (1.5 mm2) | (2.5 mm2) |
23 VA/ | 123 ft | 196 ft | 311 ft | 495 ft |
15 watts | (38 m) | (60 m) | (95 m) | (151 m) |
|
|
|
|
|
NOTE: Input power for the dome is 24 VAC or 24 VDC. Using 24 VAC input power, power consumption is 23 VA per dome. Using 24 VDC input power, power consumption is 0.7 A (15 watts). Use a 24 VAC transformer with a minimum of 40 VA per dome.
.
Table C. UTP Wiring Distances
Receiver | Maximum Distance |
|
|
Active | |
(Video Only) | |
|
|
Passive | |
(Video, Coaxitron, Pelco | |
|
|
NOTE: As a minimum, UTP requires Cat5,
C3419M (8/06) | 3 |