WARRANTY
All fiber optic transmission systems, products and accessories
manufactured by Liteway, Inc. and it’s subsidiaries are fully tested
prior to shipment and are warranted against defective materials
and workmanship for a period of five full years from the date of the
original shipment. Should a problem occur, a Return Material
Authorization Number (RMA) must be obtained from Liteway Inc.
at (516) 931-2800 and the item returned to Liteway, Inc. 166
Haverford Road, Hicksville, NY 11801, USA, prepaid. Liteway Inc.
will then, at its option repair or replace the defective item.
Liteway, Inc. maximum liability under this warranty is limited to the
cost of the defective item only. No contingent liabilities of any kind
are either assumed or implied.
Any items returned to Liteway, Inc. that have been misused,
abused, damaged, modified, connected or adjusted in any way
contrary to the instructions furnished by Liteway, Inc. or repaired
by unauthorized personnel will not be covered by this warranty.
Any non-warranty repairs required will be quoted at the current
rate for such services.
Important Notices
CAUTION !
AVOID DIRECT EXPOSURE TO BEAM.
All –5, -7, -8, and -9 Models use laser diodes. These solid-state
laser diodes are located in the optical ports of these units. Laser
diodes produce invisible radiation that may be harmful to human
eyes. Never look directly into the optical port of any fiber optic
unit designed to operate with single-mode optical fiber.
NOT FOR LIFE SUPPORT SYSTEMS
Liteway, Inc. does not authorize or warrant any of its products or
accessories for use in critical life support systems or applications
of any kind.
© Copyright 2017 Liteway, Inc.
107500 Rev F
OPERATING INSTRUCTIONS
Video Loss Detector;
Models;
VLD-3002 Dual Channel
VLD-3001 Single Channel
VLD-1001 Single Channel Sync only
The VLD-3002, VLD-3001, and VLD-1001 provides alarm indication when
there is a loss of video sync, when there is an extended period of black
(obstructed camera lens) or white (intentional blinding camera video
signals). The standard versions have a 3 second response time while the –H
versions have 0.5 seconds response time.
Technical Specifications
Compatibility
NTSC or PAL
Video Bandwidth
DC to 30 MHz
In/Out Signal Level
1 volt peak to peak
In/Out Impedance
75 ohms
Black level alarm adjustment
100mV to 700mV
White level alarm adjustment
100mV to 1V
Differential Gain
0.1% maximum
Differential Phase
0.1º maximum
Signal / Noise Ratio
85 dB min
Response Time Standard
Version
3 seconds typical
Response Time –H Version
Less than 0.5 seconds
Relay Contacts
0.5 A @ 125 VAC; 1.0 A @ 24 VDC
Indicators Power,
Alarm
Channel indicators
Signal, White, Black
Power Requirements
11-24 VAC/DC @150 mA
Temperature Range
-35º to +75ºC
Physical Size (mm)
5.0”(127)L x 1.0” (25.4)W x 3.0”(7)D
All specifications are subject to change without prior notice.
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