Pelco c3419m User Manual

INSTALLATION

Heavy-Duty
Spectra® IV Series

In-Ceiling Back Box

C3419M (8/06)

Installation

BACK
MOUNTING
PLATES



CEILING



1

2

4

MOUNTING
RING



5

36

2 C3419M (8/06)

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 10-32 x 3-inch screws (supplied) and install the mounting ring



back mounting plates .

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

Table B. 24 VAC/24VDC Wiring Distances

Requirements

The following are the recommended maximum distances for 24 VAC

Cable Type* Maximum Distance

RG59/U 750 ft (229 m)

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 DC-powered devices.)

RG6/U 1,000 ft (305 m)

)

Wire Gauge

18 AWG

(1.0 mm2)

196 ft
(60 m)

16 AWG

(1.5 mm2)

311 ft
(95 m)

14 AWG

(2.5 mm2)

495 ft

(151 m)

RG11/U 1,500 ft (457 m)

*Cable requirements:

75 ohms impedance
All-copper center conductor
All-copper braided shield with 95% braid

AC/DC

Total VA/

Total Watts

23 VA/

15 watts

20 AWG

(0.5 mm

123 ft
(38 m)

2

coverage

and two

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 V-Sync)

NOTE:

As a minimum, UTP requires Cat5, 100-ohm twisted pair cable.

C3419M (8/06) 3

0-3,000 ft

(0-914.4 m)

0-750 ft

(0-228.6 m)

7

1
2

GND

COM

AUX2

GND

3
4
5
6
7

NO

NC

VIDEO

ALARMS

8

AUX1

UTP+ UTP-RX- RX- TX-TX-PWR- PWR+GND

4 C3419M (8/06)

7. Install the back box by compressing the spring clips and pushing the back box through the hole. Tighten the screws
until you hear a clicking noise.

WARNING:

the protective boot.

8. Connect wiring to the circuit board inside the back box. When finished, close the door to the back box and turn on the
power. The green LED will light.

NOTES:

•

•

An electrical short in the back box may occur if the metal BNC connector is not completely covered by

Aux 1: Maximum 2 A at low voltage (<40 V)

Aux 2: Maximum 30 mA at 32 VDC

If you are using both unshielded twisted pair (UTP) wiring and a translator board, install the UTP wiring before
installing the translator board.

C3419M (8/06) 5