Orban 674A - Mechanical Mounting Guidelines; Optional Connector Installation

WARNING!
IF THE
GROUND
IS
DEFEATED,
CERTAIN
FAULT
CONDITIONS
IN
THE UNIT
OR
THE
SYSTEM
TO
WHICH IT
IS
CONNECTED
CAN
RESULT IN
APPEARANCE
OF
FULL
LINE VOLTAGE
BETWEEN
CHASSIS
AND
EARTH GROUND.
SUCH
VOLTAGE
IS
CAPABLE
OF
CAUSING
SEVERE
INJURY
OR
DEATH!
MECHANICAL
INSTALLATION
Vertical space
of
three
standard
rack
units (5
l/4"/l3.3cm) is
required.
Mounting
the
unit
directly over
large
heat-producing
devices
like a
vacuum-tube
power
amplifier
may
shorten
component
life
and is not
recommended.
Ambient
temperature
should
not
exceed
113
degrees
F
(45
degrees C)
when
equipment
is
powered.
INSTALLATION
OF
OPTIONS
Remove the cover
plate from
the
rear chassis
apron and install each
connector
with
a
pair
of
#4-40-1/4" flat-head screws,
nuts,
and
lockwashers.
On each
channel
in turn, connect jumper
wires
from
the barrier
strip to the
XLR's as
shown in
Fig.
I.
XLR Connector
Installations
To
install the
optional
XLR connectors,
obtain
(2
ea.)
Switchcraft D3M
and
(2
ea.)
Switchcraft
D3F (or
equivalent)
connectors from
a
local supplier.
These
connectors
are also available
directly
from Orban as
retrofit
kit
RET
-28.
Phone Jack Installation:
To install
the
optional phone jacks,
obtain
(4
ea.)
Switchcraft
#I2B
(tip-ring-sleeve)
phone jacks from a
local
supplier.
These jacks
are
also available directly
from Orban as
RET-29.
Remove the
hole plugs
from the
rear
panel and
install the jacks
using the
hardware
supplied
with the
jacks.
Then connect
jumper wires from
the
barrier strip
to the
jacks as
shown in
Fig.
I.
4