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Pelco Manual C1487M-D (7/99) 11
Figure 9. Wiring Diagram for Spectra Lite™
CONTROL
(RS-422)
SPECTRA LITE™ INTERCONNECT BOARD
If you are using a Coaxitron
®
controller, the control signals to operate the dome drive will
be transmitted over the video coax. The RS-422 control lines are not used.
If you are not using a Coaxitron
®
controller, use the RS-422 control lines. Use 22-gauge
wire.
Optional wiring for the Spectra II™ dome may be provided for alarm inputs (maximum of
seven), relay output (Aux 1), and auxiliary output (Aux 2). For more information about
wiring requirements, refer to the
Back Box Connections
section.
Proceed to the
Back Box Installation
section.
Table A. Video Coaxial Cable Wiring Distances
Cable Type* Maximum Distance
RG59/U 750 ft (229 m)
RG6/U 1,000 ft (305 m)
RG11/U 1,500 ft (457 m)
* Minimum cable requirements:
75 ohms impedance. All-copper center conductor.
95% braided copper shield.