SECO-LARM ENFORCER Video Ground Loop Isolator... User manual

ENFORCER Video Ground Loop Isolator ENFORCER Video Ground Loop Isolator
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MiVG-1C12AQ.pmd
What it is:
The ENFORCER video ground loop isolator is a passive device that helps to
reduce ground loop interference caused by a difference in ground potential
typically caused by multiple building grounds and differences in ground potential.
Ground loop isolators can be installed in new installations or added to existing
installations.
Video ground loop isolators should be installed on the camera side of your cable
and can be used with standard BNC coax cable or with video baluns over UTP.
Page 4
ENFORCER ®
Installation Manual
PITLW2
®
SECO-LARM®U.S.A., Inc., 16842 Millikan Avenue, Irvine, CA 92606
Website:www.seco-larm.com
E-mail:sales
@ seco-larm.com
Tel: [phone] Fax: [phone]
Features:
OBuilt-in surge suppressor.
OGold-plated BNC connector improves reliability and product life.
OPassive operation -- No external power required.
OHigh immunity from interference -- Built-in impedance coupled device and noise
filter. Helps to reduce RF interference, cross talk, picture tearing, and other
picture quality problems.
OBNC terminals for easy installation.
OSmall size, only 23/16" x 17/32" x 1" (55 x 31 x 26 mm).
VG-1C12AQ
Video Ground Loop Isolator
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-LARMwill
not be held responsible for the use of this product in violation of any current laws or statutes.
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-serviceablecomponentsinside.
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
obligationis limitedto therepair orreplacement ofany defectivepart ifthe unitis 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, oralteration, improperor abnormalusage, orfaulty installation,or iffor anyother 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’s option. In no event shall SECO-LARM be liable for any special, collateral,
incidental,or consequentialpersonal orproperty damagesof anykind tothe purchaseror anyoneelse.
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 © 2007 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.
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 100M Ohm
Connector In BNC Male
Connector Out BNC Female
Impedance 75 ohm (BNC to BNC)
Dimensions 23/16" x 17/32" x 1" (55 x 31 x 26 mm)
Material ABS Black
Temperature Operating temp. 32°~131° F (0°~55° C)
Specifications:

ENFORCER Video Ground Loop Isolator ENFORCER Video Ground Loop Isolator
Page 2 Page 3
Trouble Shooting:
Problem
Wavy or ghost image if
connected to image
processor (e.g., multiplexer
or DVR), but not if directly to
monitor?
Image background flutters
between dark and light.
Image is wavy and shakes?
Image is weak or faded?
No image?
Possible Cause
a. Strong electromagnetic interference.
b. Poor signal, or balun separation is too
long.
c. Split pairs.
d. Crimped cable.
Interference from external power source.
Twisted pair wires reversed.
a. Exceeded recommended balun
separation.
b. Using lower-grade cable than
recommended.
a. Cable is incorrectly connected.
b. Cable was accidentally cut.
c. Defective camera or remote video
device.
d. Defective video balun.
Possible Solution
a. Move the cable away from possible sources of interference.
b. Replace with Active Balun.
c. Ensure same twisted pair connects to balun at both ends of
cable.
d. Replace cable with new cable.
Remove power source, or adjust monitor's brightness and
contrast.
Try reversing polarity of the 2 wires at one end of cable.
a. Reduce cable length.
b. Replace with a higher-grade cable. CAT5 cable meets
specifications in the manual. CAT6 cable allows longer range.
a. Double-check that the cable was connected properly.
b. Run a continuity test on all wires in the cable.
c. Replace the unit with a new unit.
d. Replace the unit with a new unit.
Color - max. 1,300’ (400M)
B/W - max. 2,000’ (610M)
{
{
Color - max. 1,300’ (400M)
B/W - max. 2,000’ (610M)
{
{
Typical Installation #1:
VG-1C12AQ
For short-run coax cable.
Figure 1:
Typical Installation #2:
VG-1C12AQ + EVT-PB1Q
For longer runs using CAT5 UTP cable.
Figure 2:
Ideal for new CCTV installations
where no passive video baluns
have been installed yet.
Also Available:
Video Balun with Ground Loop Isolator
EVT-PB1-V1TGQ
Installation:
Installation for ground loop isolators is very simple. The units are mounted in-line with the video signal.
To install, refer to figures 1 and 2:
1. Detach the video cable BNC connector from the camera BNC connector.
2. Attach the input side of the VG-1C12AQ to the camera BNC connector.
3. Attach the video cable BNC connector to the output side of the VG-1C12AQ.
Camera
Power
BNC Ouput Connector
BNC Input Connector
Ground Loop Isolator
(VG-1C12AQ)
Multiplexer or Quad or DVR
BNC Connector
Coax Cable
Power
BNC Output Connector
BNC Input Connector
Ground Loop Isolator
(VG-1C12AQ)
Multiplexer or Quad or DVR
BNC Connector
Balun (EVT-PB1Q)
Balun (EVT-PB1Q)
Camera
Power
BNC connector
Balun with Ground
Loop Isolator
(EVT-PB1-V1TGQ)
Multiplexer or Quad or DVR
BNC Connector
Balun (EVT-PB1Q)
Camera CAT 5
CAT 5