WIRING

NOTE: The dome will stop operating if the voltage at the dome drops below 18 VAC. It will turn back on when the voltage exceeds 18 VAC.

+5 to +24 VDC

EXTERNAL RELAY (WIRING EXAMPLE)

Bring wiring to the back box opening in the ceiling. Do not attach the wiring to the back box. You will do that later.

Refer to Figure 8 for the Spectra II™ wiring diagram or Figure 9 for the Spectra Lite™ wiring diagram.

Wiring is required for power, earth ground, and video.

Refer to Table A for the type of video coaxial cable to use.

Input power for the dome is 24 VAC only. Power consumption is 30 vA per dome for indoor models and 75 vA for outdoor models. Refer to Table B to determine the size of wire to use.

Use a 24 VAC transformer with the following minimum vA:

40 vA per dome

For indoor models (without heater)

100 vA per dome

For outdoor models (with heater)

Refer to Figure 11 for wiring multiple domes from the same transformer.

SPECTRA II™ INTERCONNECT BOARD

CONTROL

(RS-422)

7

Figure 8. Wiring Diagram for Spectra II™

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Pelco Manual C1487M-D (7/99)

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Pelco C1487M-D operation manual Wiring Diagram for Spectra