OPTIMOD-FM DIGITAL
INSTALLATION
2-3
If you need to change the plug to meet your country’s standard and you
are qualified to do so, see Figure 2-1. Otherwise, purchase a new mains
cord with the correct line plug attached.
3.
Set Ground Lift switch.
The
G
ROUND
L
IFT
switch is located on the rear panel.
The
G
ROUND
L
IFT
switch is shipped from the factory in the
GROUND
position, (to
connect the 8300’s circuit ground to its chassis ground). If you are using the
8300’s composite output to drive an exciter with an unbalanced output, set the
switch to
L
IFT
.
This will break most potential ground loops. If you have an installation that does
not respond to use of the
G
ROUND
L
IFT
switch, you can always break a ground
loop by using Orban’s CIT25 Composite Isolation Transformer. If the CIT25 is in
use, the
G
ROUND
L
IFT
switch will usually be set to
GROUND.
4.
Mount the 8300 in a rack.
The 8300 requires two standard rack units (3 ½ inches / 12.7 cm).
There should be a good ground connection between the rack and the 8300 chas-
sis — check this with an ohmmeter to verify that the resistance is less than 0.5
.
Mounting the unit over large heat-producing devices (such as a vacuum-tube
power amplifier) may shorten component life and is not recommended. Ambient
temperature should not exceed 45
C (113
F) when equipment is powered.
Equipment life will be extended if the unit is mounted away from sources of vi-
bration, such as large blowers and is operated as cool as possible.
5.
Connect inputs and outputs.
See the hookup and grounding information on the following pages.
TOPIC PAGE
Audio Input and Audio Output Connections.............................................2-6
AES3 Digital Input and Output ...................................................................2-7
Composite Output and Subcarrier Inputs ..................................................2-8
Grounding ..................................................................................................2-10
6.
Connect remote control interface. (optional)
For a full listing of 8300’s extensive remote control provisions, refer to
Remote
Control Interface Programming
on page 2-36.
Optically isolated remote control connections are terminated in a type DB-25
male connector located on the rear panel. It is wired according to Figure 2-2. To
select the desired function, apply a 5-12V AC or DC pulse between the appropri-
ate
REMOTE
INTERFACE
terminals. The (
) terminals can be connected together
and then connected to ground at pin 1 to create a Remote Common. A current-
l12VDC source is available on pin 25. If you use 48V, connect a 2k
Summary of Contents for 8300J
Page 1: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
Page 7: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
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Page 94: ...2 46 INSTALLATION ORBAN MODEL 8300 This page intentionally left blank...
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Page 247: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 29...
Page 254: ...6 36 TECHNICAL DATA ORBAN MODEL 8300 CPU Module...
Page 260: ...6 42 TECHNICAL DATA ORBAN MODEL 8300 8300 RS232 BOARD PARTS LOCATOR...
Page 262: ...6 44 TECHNICAL DATA ORBAN MODEL 8300 8300 POWER SUPPLY PARTS LOCATOR...
Page 264: ...6 46 TECHNICAL DATA ORBAN MODEL 8300 8300 I O BOARD PARTS LOCATOR...
Page 270: ...6 52 TECHNICAL DATA ORBAN MODEL 8300 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 278: ...6 60 TECHNICAL DATA ORBAN MODEL 8300 8300 DISPLAY BOARD PARTS LOCATOR...
Page 279: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...