PESA Cougar 32X32, Open Me First

Page: 74 / 179

07/96
P/N 81905903820
page 4.7
Section 4 System Connections Open-Me-First
Power Supply Alarm Connectors (J133 and J136)
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 failure 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. 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 Auido 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.
Audio Input and Output Connectors
There are 32 matrix A and B twisted pair audio input connectors and 32
matrix A and B twisted pair audio output connectors located on the Cou-
gar Audio Routing Switcher's rear panel. These connectors allow the
connection of the audio sources (input connectors) and audio destinations
(output connectors) to the Cougar Audio Routing Switcher.
4.4 Jaguar Video Frame Connectors
The following manual subsections discuss the various system connectors
found on the rear of a fully configured Jaguar Video Routing Switcher.
Refer to Figure 4-3 for a visual reference of the Jaguar Video Frame's rear
panel.
4.3 Cougar Audio Frame Connectors Continued: