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
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 |
| | | | | | |
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% for stranded copper wire.) These maximum distances are based on a maximum allowable voltage drop of 10%.
Table D. Recommended Wire Gauge and Maximum Wiring Distances
| 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) |
