GEM BLN-TL Manual

BLN-TL is a passive type video balun to allow you to send video signals through CAT5 cable and requires no power.
The transmission distance is about 2300 feet, but with multiplexers, quads, and DVRs, please restrict the distance to
650 feet. The twisted pair wires will not require to be stripped before installation with our latest TOOL LESS design
and also make the connection stronger.
~Installation~
[Step 1]
Run your CAT5 cable between camera and the rest of your CCTV equipment. There are 4 pairs of wire in the
CAT5 cable and will able to carry 4 video signals, one per each pair of wire. It is recommended running more CAT5
cable than you actually need to give tremendous flexibility to add extra cameras and audio feeds etc.
[Step 2]
Strip the CAT5 cable cover with proper length (approximate 8mm) and identify the various pairs in the CAT5 cable.
[Step 3]
Connect a pair of wires to the balun according to the diagram as below (fig.1) and connect the balun at the other end
of CAT5 cable with same pair of wires to connect to your CCTV device. It is important to connect the twisted pairs
of wires in CAT5 cable with CORRECT POLARITY to the balun on both ends.
[Step 4]
Connect the baluns to your camera and the other end with the BNC connection to your control equipment or monitor.
~Important Notice for Installation~
1. There are THREE connections on the balun with our latest TOOL LESS design by IDC connection strip and
should be connected as below.
2. Strip the cable with proper length will make the connection stronger and the CAT 5 cable will be protected by the
housing (fig.2).
CAT5 CABLE
Striped color cable (eg. white/brown)
Solid color cable (eg. solid brown)
fig.1
IDC STRIP Note
It is recommend to use pin 7 (white/brown) as TIP(+)
TIP
and pin 8 (solid brown) as RING(-) to all GEM CCTV
RING
balun video pin configuration order.
fig.2