PHASE EIGHT”
INSTRUCTIONS FOR
REF. NOTES
Supersedes
X321/686
SHEET NO. REV.
S E C .
1 1 8 9
INSTALLATION
AND OPERATION
MODEL
MANUAL VIDEO SWITCHER
INTRODUCTION
BEZEL INSTALLATION
The following information covers the instal-
lation, operation, and maintenance of the
Looping Manual Switcher.
The
Switcher is a cascadable
position manual switcher. It is available
with an unterminated looped-through circuit
that is terminated at another point in the
video circuit. The
features latching
push-button switches.
Each
switcher is provided with four
different front bezels, with switch positions
numbered l-4, 5-8, 9-12, 13-16. This allows
each camera in an installation with cascaded
switchers to have a unique number.
See Figure 1.
INSTALLATION
GENERAL
This video switcher is designed to provide
access to a video circuit while preserving the
termination of the video source.
As a looping switcher, this unit does not
provide any terminating impedance, but has a
loop-out connector for each video input. Systems
using looping switchers may redistribute the
video signals for viewing at additional monitors
and may be connected to other looping and/or
passive switchers for scene selection at a
remote site.
Figure 1
Front Panel,
Use the following procedure to install a bezel.
Each video signal must terminate with a 75-ohm
impedance to prevent picture degradation. If
the video signal is looped out to other equip-
ment, the
component in the series
must terminate with 75 ohms. Use either a
termination switch built into the equipment
or
a
75-ohm terminator. Do not use
both since “double” termination also causes
picture degradation.
1. Select the appropriate bezel from the
accessory pack, and peel off the protective
paper cover, exposing the adhesive.
2. Press the bezel, carefully, into position on
the front of the
MODULE INSTALLATION
Any video signal that is not looped out of the
must have a
terminator installed on
its loop-out connector. Four
are supplied.
Slide the module into the card cage or desktop
enclosure from front to back. Loosen the re-
taining bracket screw on the upper right corner
of the rear panel on the module. Push the
bracket up and tighten the screw. See Figure 2.
C A M E R A
SELECTION
S W I T C H E S
WARNING: TO PREVENT RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
*Trademark of Vicon
Inc.
Manufactured under US. patent
Product specification8
to change without notice.
Vicon part number
V
INDUSTRIES, INC.
525 BROAD HOLLOW ROAD, MELVILLE, N.Y. 11747 TEL: (516) 293-2200 TELEX: 144581
TOLL FREE:
(OUTSIDE OF NEW YORK)
