What are the dome drives model numbers for the Spectra IV IP?
Pelco DD423 Spectra IV SL 23X DD NTSC Dome Camera | eBay
Pelco DD423 Rev A6 Spectra Dome Camera VK-S454N 24VAC/DC 50-60Hz 0.6A | eBay
Pelco SD423-F1 Spectra IV SL Series Clear Dome PTZ System In-Ceiling Indoor NTSC Black, 23x Lens
PELCO DD423-X Camera Dome Drive, PAL, Day/Night, 23X Zoom, 752 x 582 Resolution, F 1.6 3.6 to 82.8 MM Lens, 24 Volt AC/DC, 1/4" CCD, Aluminum, Thermoplastic - Nexlar E-Commerce