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ENFORCER PASSIVE MODULAR SNAP-IN VIDEO BALUN ENFORCER PASSIVE MODULAR SNAP-IN VIDEO BALUN
MiEVTPBMV.pmd
TROUBLE SHOOTING
WHAT IT IS
The EVT-PBM-Vxx Passive Video Balun is the quick, low-cost way to connect CCTV cameras to a monitor, multiplexer, or video recorder
at up to 2,000 feet away.
The EVT-PBM-Vxx allows a CCTV camera’s video signal to be transmitted over low-cost CAT 5e unshielded twisted pair (UTP) cable
instead of costly coax cable. It is suitable for full-motion color and monochrome cameras.
INSTALLATION
NOTE:
Video baluns are connected in pairs. One connects to the CCTV camera’s BNC connector, and the other connects to the BNC
connector of a remote video device. Exception: Passive 16-port video hubs like SECO-LARM’s EVT-PH16-4T2 do not require a second balum.
1. Make sure the maximum distance between the CCTV camera and the remote video monitor, recorder, multiplexer, or other
device to which it is connected does not exceed 2,000’ (610m). See fig. 1.
2. Run the UTP cable from the remote video device to where it will be connected to the CCTV camera. Follow the CCTV camera’s
wiring instructions for information on how to safely run and hide this wire.
NOTE: The end of the cable near the CCTV camera should terminate in an RJ-45 connector. The end near the remote video
device may have an RJ-45 connector or bare wires, depending on how it is connected to the remote device.
3. On the CCTV camera side (fig. 2):
a. Crimp an RJ-45 connector to the end of the cable (see fig. 3).
b. Plug the cable’s RJ-45 connector into an EVT-PBM-V17 or EVT-PBM-V27 modular balun.
c. Push the balun through the hole in the modular single-gang wall plate. Mount the plate in the wall.
d. Connect the video balun’s BNC connector to the CCTV camera’s video-out BNC connector. If the CCTV camera has a BNC
connector coming out from the camera, use an optional coax cable from the camera to the balun.
4. On the remote video device side – How it is connected depends on the remote video device:
a. For video devices such as a monitor, digital video recorder, multiplexer, or video switch, either:
(1) terminate the cable with an RJ-45 connector and plug into an EVT-PBM-V17 or EVT-PBM-V27 modular balun, and
then through an optional coax cable to the video device; or
(2)
plug the wires into a SECO-LARM EVT-PB1 passive video balun, and then plug the balun into the video device. See. figs. 4
and 5.
b. For devices such as the EVT-PH16-4T2 16-port passive video hub, connect the cable’s bare wires to the modular plug on
the back of the hub. In this case, there is no need for a second passive video balun. See fig. 6.
NOTE: Any bare wires exposed outside of the video baluns must be insulated and taped.
Page 4
FIG. 7:
Dimensions.
Specifications:
ENFORCER
®
Installation Manual
EVT-PBM-V17
Male Gold-Plated BNC
EVT-PBM-V27
C
Modular Snap-In Passive Video
Balun with surge protection.
PITSW4
®
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 © 2005 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.
SECO-LARMSECO-LARM
SECO-LARMSECO-LARM
SECO-LARM
®
U.S.A., Inc., U.S.A., Inc.,
U.S.A., Inc., U.S.A., Inc.,
U.S.A., Inc., 16842 Millikan Avenue, Irvine, CA 92606
Website: www.seco-larm.com
E-mail: sales
@
seco-larm.com
material and workmanship while used in normal service for the life of the product from the date of sale to the original customer. Our
Range: Up to 2,000’ (610m)
*NOTE: Shorter range may result when Baluns are used with DVR.
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?
Poor image quality when
testing using cable on a reel?
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. Power is off.
b. Cable is incorrectly connected/crimped.
c. Cable was accidentally cut.
d. Wires running from pins 7 and 8 reversed.
e. Defective camera or remote video device.
f. Defective video balun.
Induction from the coiled cable.
Possible Solution
a. Move the cable away from possible sources of interference.
b. Install video amplifier between image processor and 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. CAT 5e cable meets specifications
in
the manual. CAT 5e or better cable allows longer range.
a. Check the power supplies of all devices connected to the cable.
b. Double-check that the cable was connected and crimped properly.
c. Run a continuity test on all wires in the cable.
d. Reverse the wires.
e. Replace the unit with a new unit.
f. Replace the unit with a new unit.
Test only with cable laid out in such a way that it is not coiled and does
not double back on itself.
2
1
/
4
” (57mm)
1
9
/
16
” (39mm)
3
/
4
” (19mm)
15
/
16
” (24mm)
Pin 7 & 8
Video Format RS170, NTSC, PAL, SECAM, CCIR
Maximum Input 1vpp
Insertion Loss < 2dB per pair from DC ~ 8 Mhz
Return Loss >-15dB from DC ~ 8 Mhz
Frequency Response DC ~ 8 Mhz
Attenuation 6.6 dB/1000 ft. @ 1MHz
Common Mode Rejection 40 dB @ 8 MHz
Impedance - Coax, Male BNC 75 Ohms @ 1 MHz
Power No power required
Surge Protection Transient immunity:
6000V at 1.2 µs * 50 µs
Temperature Range 32
o
~131
o
F (-0
o
~55
o
C)
Humidity Range 0 ~ 95%
Wire Type UTP (Unshielded Twisted Pair)
Wire Category Category 2 or better. Best if > CAT 5e
UTP Connection RJ-45. Pins 7 & 8 reverse polarity
sensitive
Case ABS Plastic
Male
Female
Female Gold-Plated BNC
Male Gold-Plated BNC
Tel: 800-662-0800 / 949-261-2999 Fax: 949-261-7326
NOTICE:
The information and specifications printed in this manual are current at the time of publication. However, the
LIMITED LIFETIME WARRANTY: This ENFORCER Passive Video Balun is warranted against defects in
obligation is limited to the repair or replacement of any defective part if the unit is returned, transportation pre-paid, to SECO-LARM.
2” (52mm)