Videoswitch VCM - Manual (Page 7)

Duplex Multiplexers
User Manual Page 7
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Videoswitch
VCM614d.doc
2.3.3 Quad Images (8-Camera multiplexers only)
The VCM-28 and VSM-28 multiplexers allow a full screen or a quad to be displayed on monitor
“A”, and a Quad to be displayed on monitor “B”. A different quad may be selected for each
monitor.
To select a quad for Monitor “A” press the “1-4” or “5-8” key in the “Monitor “A” group of keys
on the front panel.
To select a quad for Monitor “B” press the “1-4” or “5-8” key in the “Monitor “B” group of keys on
the front panel.
2.3.4 Quad/Multi-screen Images (12, 16 and 20 Camera multiplexers only)
These multiplexers allow a full screen or a multi-screen image to be displayed on monitor “A”, and
a multi-screen image to be displayed on monitor “B”. It is not possible to display different multi-
screen images on the two monitors.
To select a multi-screen image for Monitor “B”, momentarily press one of the multi-screen select
keys (eg. “1-4”, “5-8” etc).
To select a multi-screen image for Monitor “A”, press one of the multi-screen select keys and keep
pressing it for 1 second.
2.4 Auto-Sequence
The VCM-24(A) and VSM-24(A) have a single “AUTO” key to sequence full screen images.
Other models allow either full screen or quad images may be auto sequenced.
The VCM-28(A) and VSM-28(A) have two “AUTO” keys, one assigned to each monitor.
In the case of the 12, 16 and 20-camera multiplexers, selection is by function rather than monitor:
the two “AUTO” keys are for “FULL SCREEN” and “SPLIT SCREEN” (multi-screen).
To select which cameras or quads are included in the sequence or to change the dwell time, refer to
section 1.8.
2.5 System Testing
It is essential that, during day-to-day use of the equipment, that VCR tapes are played back
regularly to check that the installation is still functioning correctly. This is the only way to
guarantee that no faults have developed in the cabling, cameras, VCR, multiplexer or ancillary
equipment.