VG-1C12BQ
Video Ground Loop Isolator
Note: Products with model numbers that end with “Q” or that have a round green “Q” sticker are RoHS compliant.
Installation Manual
Reduces ground loop interference
Built-in surge suppressor
Passive operation – No external power required
High immunity from interference – Built-in impedance coupled device and noise
filter helps reduce RF interference, cross talk, picture tearing, and other picture
quality problems
BNC terminals for easy installation
ENFORCER Video Ground Loop Isolator
The ENFORCER Video Ground Loop Isolator is a passive device that helps to
reduce ground loop interference caused by a difference in ground potential.
Ground loop isolators can be deployed in new installations or added to
existing installations.
ENFORCER Video Ground Loop Isolators should be installed on the camera
side of the cable and can be used with standard BNC coax cable or with video
baluns.
Introduction:
Bandwidth
Video DC to 8Mhz
Maximum input
1.0Vp-p
Insertion loss
<0.5dB
Frequency response
0-3dB at 10MHz
Isolation voltage
600VDC (min.)
Insulation resistance
100MΩ
Transient voltage suppressors
12 Vrms
Connector
In
BNC Male
Out
BNC Female
Impedance
75 Ω (BNC-to-BNC)
Dimensions
27/8” x 13/32” x 3/4” (73 x 28 x 19 mm)
Cable length
6” (152mm) each side
Weight
2.3-oz (65g)
Material
ABS Black
Operating temperature
32° ~ 131°F (0° ~ 55° C)
Specifications:
Installation:
1. Detach the video cable BNC connector from the camera BNC connector.
2. Attach the equipment side of the VG-1C12BQ to the camera BNC connector.
3. Attach the video cable BNC connector to the cable side of the VG-1C12BQ.
2 SECO-LARM U.S.A., Inc.
ENFORCER Video Ground Loop Isolator
Sample Installations:
Troubleshooting:
Short run using coax cable
Longer run using CAT5e/6 cable and video baluns
Wavy or ghost image if connected to
image processor (e.g., multiplexer or
DVR), but not if directly to monitor.
Move the cable away from possible sources of interference.
Ensure that the same twisted pair connects to a balun at both
ends of the cable.
Replace the cable with a new cable.
Image background flutters between dark
and light.
Remove a local power source, or adjust the monitor’s brightness
and contrast.
Image is wavy and shakes.
Try reversing the polarity of the 2 wires at one end of the cable.
Image is weak or faded.
Reduce the cable length.
Replace with a higher-grade cable. CAT5 cable meets the
specifications in the manual. CAT6 cable allows longer range.
No image.
Double-check that the cables were connected properly.
Run a continuity test on all wires in the cable.
Coax Cable
Ground Loop Isolator
(VG-1C12BQ)
ENFORCER
Bullet Camera
Remote DVR, Monitor,
Switch, etc.
BNC Connector
ENFORCER
Bullet Camera
Ground Loop Isolator
(VG-1C12BQ)
Cat5e/6 Cable
Remote DVR, Monitor,
Switch, etc.
Balun (EVT-PB1Q)
Color: Up to 1,300ft (400m)
B/W: Up to 2,000ft (610m)
SECO-LARM U.S.A., Inc. 3
BNC Input Connector
(Equipment side)
BNC Output Connector
(Cable side)
BNC Input Connector
(Equipment side)
BNC Output Connector
(Cable side)
ENFORCER Video Ground Loop Isolator
Also Available:
Video Balun with Ground Loop Isolator
EB-P101-24GQ
Ideal for new CCTV installations where passive
video baluns have not yet been installed
16842 Millikan Avenue, Irvine, CA 92606 Website: www.seco-larm.com
Tel: 800-662-0800 / 949-261-2999 Fax: 949-261-7326 E-mail: sales@seco-larm.com
PITSW4
MiVG-1C12BQZZ_1205.doc
NOTICE: The information and specifications printed in this manual are current at the time of publication. However, the
SECO-LARM policy is one of continual development and improvement. For this reason, SECO-LARM reserves the right to
change specifications without notice. SECO-LARM is also not responsible for misprints or typographical errors.
Copyright © 2012 SECO-LARM U.S.A., Inc. All rights reserved. This material may not be reproduced or copied, in whole or in
part, without the written permission of SECO-LARM.
WARRANTY: This SECO-LARM product is warranted against defects in material and workmanship while used in normal
service for a period of one (1) year from the date of sale to the original consumer customer. SECO-LARM’s obligation is limited
to the repair or replacement of any defective part if the unit is returned, transportation prepaid, to SECO-LARM.
This Warranty is void if damage is caused by or attributed to acts of God, physical or electrical misuse or abuse, neglect,
repair, or alteration, improper or abnormal usage, or faulty installation, or if for any other reason SECO-LARM determines that
such equipment is not operating properly as a result of causes other than defects in material and workmanship.
The sole obligation of SECO-LARM, and the purchaser’s exclusive remedy, shall be limited to replacement or repair only, at
SECO-LARM option. In no event shall SECO-LARM be liable for any special, collateral, incidental, or consequential personal
or property damages of any kind to the purchaser or anyone else.
WARNING: Incorrect mounting which leads to exposure to rain or moisture inside the enclosure could cause a dangerous
electric shock, damage the device, and void the warranty. Do not open the case of this device, as there are no field-serviceable
components inside.
IMPORTANT: Users and installers of this product are responsible for ensuring this product complies with all national, state,
and local laws and statutes related to monitoring and recording audio and video signals. SECO-LARM will not be held
responsible for the use of this product in violation of any current laws or statutes.
ENFORCER
Bullet Camera
Balun with Ground
Loop Isolator
(EB-P101-24GQ)
Cat5e/6 Cable
Remote
DVR, Monitor, Switch, etc.
Balun (EVT-PB1Q)
Color: Up to 1,300ft (400m)
B/W: Up to 2,000ft (610m)
BNC Input Connector
4 SECO-LARM U.S.A., Inc.
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