2.1 Rack Installation
Procedures in Sections 2.2 through 2.4 should be
parts immediately. This avoids delays in the
formed before installing the unit into a rack.
lation process.
Observe the following guidelines when mounting the
3. Provide a minimum of 1.75 inches (4.4 cm) of
or the
into a rack:
empty space between each piece of equipment for
ventilation.
Plan the layout of the equipment in the racks before
4.
Use at least one blower or fan per rack and place it
installing equipment.
in the bottom of the rack. Thus, air is drawn in at
2.
Take an inventory of all rack equipment hardware,
the bottom of the rack and vented at the top.
brackets, blank panels, etc. Reorder any missing
2.2 Setting Addresses
CAUTION:
sure that power to the audio
switcher unit is OFF when setting the address
DIP switches.
NOTE: Operations described in Sections 2.2 through
are
prior to mounting a
or
to
a
rack or
permanent
location.
Both the
and
switcher inputs and
outputs must be assigned specific addresses. Setting
addresses is accomplished by setting DIP switches in-
stalled on each unit’s main PC board. The basic 32 input
unit is equipped with one main board and
eight DIP switches, The
is equipped with two
the main board and the audio relay driver board.
The main board is the larger of the two boards and is
mounted at the bottom of the unit housing. The audio
driver board, the smaller of the two
is mounted
to chassis studs via
standoffs and is located
above the main board.
To access the addressing DIP switches, remove the unit’s
top cover. DIP switches may be labeled in different
ways. Sometimes the words OPEN and/or CLOSED are
used, but the words ON and/or OFF are used more
frequently. These terms are defined: ON = CLOSED,
OFF = OPEN
2.3
and
DIP Switch Settings
The
and
DIP switches on the main
board are designated as follows:
Input Address DIP Switches
CAMERA GROUP 1
CAMERA GROUP 2
CAMERA GROUP 3
CAMERA GROUP 4
SW7
MONITOR GROUP 3
SW8
MONITOR GROUP 4
DIP switches SW1 through SW8 are eight pole switches.
Table 1 lists the DIP switch settings
for a
system with 1 to 256 audio inputs. A
input system
requires cascading eight audio-follow-video switcher
units.
Output Address DIP Switches
MONITOR GROUP 1
SW6
MONITOR GROUP 2
DIP switch settings for a system of 1 to 128 outputs are
listed in Table 2. Audio outputs are addressed by setting
SW5 through SW8. Refer to Figure 3.
2.4 Jumper Configurations
The function of the jumper is to connect two different
circuits on a PCB. The jumper slips over a two-pin
assembly on the PCB, connecting the circuits routed to
each of the pins. Jumpers are installed by lining up the
jumper with the tops of the connecting pins and gently
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