PESA Cougar 32X32, Open Me First

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07/96
P/N 81905903820 page 4.4
Section 4 System Connections Open-Me-First
Power Supply Alarm Connectors (J23 and J24)
An alarm circuit has been provided in the PS70V Power Supply's circuitry.
This circuit acts as a switch to trigger an optional external alarm in the
event of a failure in the power supply or of the external 110VAC (220VAC
for the international version) source. The alarm circuit supplies a contact
closure but does not provide a voltage to the external alarm and has a
10mA current limit. The alarm connectors, located on the backplane, allow
connection of external power supply alarms.
Reference (Sync) Connectors (1 and 2)
The sync connectors are used to connect an external sync signal to the
Cougar Video Routing Switcher. The sync signal may be either a color
black or composite video signal. The use of an external sync signal allows
switch changes to be accurately timed in the vertical interval. The sync
connectors are loop-thru connectors and must be terminated with 75
ohms if looping is not used.
Video Input and Output Connectors
There are 32 BNC video input connectors and 32 BNC video output con-
nectors located on the Cougar Video Routing Switcher's rear panel. These
connectors allow the connection of the video sources (input connectors)
and video destinations (output connectors) to the Cougar Video Routing
Switcher. The video input connectors are internally terminated into 75
ohms.
4.3 Cougar Audio Frame Connectors
The following manual subsections discuss the various system connectors
found on the rear backplane (rear panel) of the Cougar Audio Routing
Switcher. Refer to Figure 4-2 for a visual reference of the Cougar Audio
Frame's rear panel.
4.2 Cougar Video Frame Connectors Continued: