Four-port Passive Balun For multiple cameras, you will multiple pairs of baluns for each camera. However, you can save space by using a single 4-port video balun on the monitor side, which supports multiple baluns on the camera side (see below).

One balun per Camera but a single "multi-port" balun for Monitor side
A single four-port video balun on the monitor end supplies power to (4) cameras, and receives video from the 4 cameras. One balun per camera is needed on the camera end.

Four-port
Baluns
Connector type Input power Camera-side
compatible balun units
NVA-300-4POWER
RJ45 Bare Wire AC or DC
(either will be
passed through).
One pair per camera
The other way is to use pairs of video baluns, one (left) for the camera, and one balun (right) for the monitor. For more cameras, add additional pairs as needed. These products will all feed 12V DC to the camera itself.

Standalone Balun Pairs
Balun pair Connector type Input power
NVA-P-201 <- camera side
NVA-P-201-ADA <- monitor side
Bare wire
(pictured)
AC and DC, 18-24V
NVA-870-BS78-SP <- camera side
NVA-870-BS78-PW <- monitor side
RJ45 DC only, 18V

All products, w/matching power adaptors
ImageProductPower adapter
NVA-870-BS78-SP
NVA-870-BS78-PW

(1 power adapter
per pair)
DC
PIPS-1823 (DC 18V, 2.3 A)
NVA-P-201
NVA-P-201-ADA

(1 power adapter
per pair)
DC
PIPS-1823 (DC 18V, 2.3 A)


AC
PIAD-2410 (AC 24V, 10 VA)
PIAD-2420 (AC 24V, 20 VA)
PIAD-2440 (AC 24V, 40 VA)


Cable for AC adapter to balun power plug:
VB870-DC-N-36 (3ft)
VB870-DC-N-72 (6ft)

NVA-300-4POWER
The NVA-300 will pass through whatever power (AC or DC) without conversion to the camera-end balun.

If using DC on the remote end (with power regulation 1)
PIPS-1823 (DC 18V, 2.3 A)


If using AC on the other end
PIAD-2410 (AC 24V, 10 VA)
PIAD-2420 (AC 24V, 20 VA)
PIAD-2440 (AC 24V, 40 VA)

Cable for AC adapter to balun power plug:
VB870-DC-N-36 (3 ft)
VB870-DC-N-72 (6 ft)


Notes:
The NVA-300 will pass through whatever power it gets; for short distances (where power level stays constant) the power level should be matched to the camera-side balun, or else the camera's balun must downregulate the power to the camera's power level.