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This chart shows the proper current needed for power supplies for Q-View Series
cameras. Use Class 2 Power only. Input voltage must be
24 VAC/VDC.
Use the formula below to select
the correct power supply for
cameras connected in parallel
(positive to positive, negative to
negative):
Total current for a 4 VAC
system:
TOTAL CURRENT = (0mA x total number of cameras) Example: 0mA x total cameras = 1010mA
Note: 0mA is camera plus power supply
Video Cable Maximum Length (feet/meters)
Cable Type
RG-59
RG-6
Wire Gauge
23 AWG* 18 AWG* 16 AWG*
Max. Length
750/229
1500/457 2000/610
* Copper clad steel core, 95% braided shield
NOTE: The above table is based on a "worst-case" power supply. Using a regulated or switching power supply can increase your cable
distance. Videolarm recommends using our PS4 power supply, or a CSA/UL listed Class 2 power supply.
The QRH is setup with (2) individual power inputs.
1. Accessory Power (yellow and green wire)
2. Camera Power (red and orange)
If you wish to provide a single power transformer it is recommended
that:
1. Be certain that you know the total power consumption of the hous-
ing Heaters (25 watts) + Blowers (2 watts) + camera/pan-tilt (not
supplied)
2. Check the supplied wiring chart to be sure that you have the
proper gauge wire for the distance that you intend to run your
power wires.
3. Bring power to the 3 and 4 position of the power connector (yellow
and green wire)
4. Two jumpers are provided in the housing packet. Jumper from the
1
position to the 3
position and from the 2
st
rd
position of the terminal block. Be careful not to short between the
yellow and green wires.
Add 2 jumpers for
single power input
Figure 5
CABLE AND POWER GUIDELINES
CAMERAS
TOTAL LOAD
1
2.5W
2
5W
3
7.9W
4
10.9W
Power Supply Cable Maximum Length (feet/meters)
AWG
RG-11
position to the 4
nd
th
CAMERAS
1
2
3
4
POWER SUPPLY
24 AWG
24 VAC/VDC
1718/523
24 VAC/VC
834/254
24 VAC/VDC
529/161
24 VAC/VDC
359/109
250/76
500/152
1000/305
18
3Ω
6Ω
13Ω
20
5Ω
10Ω
20Ω
22
8Ω
17Ω
33Ω
24
13Ω
26Ω
52Ω
24k VAC Wiring Distances
Maximum Length (feet/meters)
The following are the recommended maximum distances for 24 VAC
with a 10% voltage drop (10% is generally the maximum allowable
voltage drop for AC powered devices).
Total vA
20
consumed
22
400
5.5
250
180
120
10
141
89
20
90
65
30
70
44
40
56
35
50
47
29
60
25
40
70
34
80
31
31
90
19
28
17
100
25
16
110
23
14
120
21
13
130
20
12
140
11
18
150
17
160
11
16
170
10
15
9
180
14
9
190
14
8
200
- -
VOLTAGE
CURRENT
24 VAC/VDC
102mA
24 VAC/VDC
210mA
24 VAC/VDC
331mA
24 VAC/VDC
487mA
22 AWG
18 AWG
16 AWG
2733/833
6909/2106
10985/3348
1327/404
3356/1023
5335/1626
842/256
2129/649
3385/1032
572/174
1447/441
2300/701
1500/457
2000/610
3000/914
19Ω
26Ω
30Ω
40Ω
48Ω
66Ω
78Ω
108Ω
Wire Gauge
18
16
14
12
600
960
-
-
300
480
800
1300
225
358
571
905
1440
130
225
350
525
112
179
285
452
90
143
228
362
75
119
190
301
64
102
163
258
55
85
140
215
50
79
126
201
45
71
114
181
41
65
103
164
37
59
95
150
34
55
87
139
32
51
81
129
30
47
76
120
28
44
71
113
26
42
67
106
25
39
63
100
23
37
60
95
22
35
57
90
POWER
2.5W
5W
7.9W
10.9W
40Ω
59Ω
99Ω
163Ω
10
-
-
830
720
576
480
411
340
320
288
261
240
221
205
192
180
169
160
151
144
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