Cable guidelines – Insignia HD16 User Manual
Page 22

22
Cable Guidelines
Power supply cable maximum length (feet/meters)
Wire gauge
Total
load
Power
supply
24 AWG
22 AWG
18 AWG
16 AWG
Cameras with AC/DC power supplies
3.5 W
15 VDC
180/55
290/88
730/220
1170/352
3.5 W
24 VAC
470/143
760/232
1926/587
3065/934
Note
Calculations are based on an unregulated linear power supply which would
be the worst case. Using a regulated or switching power supply can increase
the cable distance. We recommend using a CSA Certified/UL listed Class 2
power adapter to ensure compliance with electrical safety standards.
Video cable maximum length (feet/meters)
Cable type
RG-59
RG-6
RG-11
Wire gauge
23 AWG*
18 AWG*
14 AWG*
Maximum length (feet/meters)
750/229
1500/457
2000/610
* Copper clad steel core, 95% braided shield
We recommend these NVT video transceivers (sold separately by NVT Inc.):
•
NV-212A (500 ft/152 m—26 Ω)**
•
NV-213A/A-M (1000 ft/305 m—52 Ω)**
•
NV-652R, NV-862R or NV-1662R (3000 ft/914 m—163 Ω)**
** Distances have been calculated using 24 AWG Twisted Pair wire.
Note
We recommend that you measure the wire distance to ensure the capability
of the twisted pair product is not exceeded. Use an ohmmeter to measure wire
resistance by shorting the two conductors together at the far end, then
measure the loop resistance out and back. Compare to the table below.
Maximum length (feet/meters)
AWG
250/76
500/152
1000/305
1500/457
2000/610
18
3 Ω
6 Ω
13 Ω
19 Ω
26 Ω
20
5 Ω
10 Ω
20 Ω
30 Ω
40 Ω
22
8 Ω
17 Ω
33 Ω
48 Ω
66 Ω
24
13 Ω
26 Ω
52 Ω
78 Ω
108 Ω
Note
Use point-to-point Unshielded Twisted Pair wire only.