C1570M-E (4/07) 23
POWER CONNECTION
The CM9700MDD-EVS offers a single four-pin power connector. The RK5000PS-5U rack mount kit and the NET5301PS attach to the four-pin
connector.
When using a different power supply, attach power to the enclosed four-pin to two-pin adapter and attach the adapter to the unit.
The CM9700MDD-EVS is designed to operate from either a 12 VDC or a 24 VAC power supply. It automatically senses power type and polarity (DC).
The CM9700MDD-EVS can be powered from many sources:
NET5301PS power supply connects directly to the four-pin connector on the CM9700MDD-EVS rear panel.
The RK5000PS-5U rack mount kit supplies power through the four-pin connector on the CM9700MDD-EVS rear panel as soon as the unit
slides into place.
The Pelco MCS (B model), WCS (B model), and TF Series power supplies provide power through the four-pin to two-pin adapter (supplied),
which then connects directly to the four-pin connector on the CM9700MDD-EVS rear panel.
Other UL Listed direct plug-in power units marked “Class 2” and rated for 12 VDC +10%/-15% or 24 VAC +10%/-15% provide power
through the two-pin to four-pin adapter (supplied), which then connects directly to the four-pin connector on the CM9700MDD-EVS rear
panel.
The power consumption of the CM9700MDD-EVS is 12 W (20 VA).
Use Table C to estimate your power requirements when installing multiple CM9700MDD-EVS units. This table is based on a 24 VAC power
supply.
Table C. Powering Multiple Units
Use Table D to help identify the necessary wire gauge and maximum cable distance. This table applies to two-conductor solid copper wire.
(Reduce the distance by 10 percent for stranded copper wire.) These maximum distances are based on a maximum allowable voltage drop of
10 percent.
Table D. Recommended Wire Gauge and Maximum Wiring Distances
Units Powered
at 20 VA at 48 VA at 50 VA at 100 VA at 120 VA at 240 VA at 480 VA
1 2 2 4 5 11 24
Wire Gauge Maximum Distance
12 VDC 24 VAC
20 AWG (0.5 mm2) 59 ft (17 m) 237 ft (72 m)
18 AWG (1.0 mm2) 94 ft (28 m) 377 ft (114 m)
16 AWG (1.5 mm2) 149 ft (45 m) 599 ft (183 m)
14 AWG (2.5 mm2) 238 ft (72 m) 952 ft (290 m)
12 AWG (4.0 mm2) 377 ft (114 m) 1,511 ft (460 m)
10 AWG (6.0 mm2) 600 ft (182 m) 2,400 ft (731 m)