OnAir 500 Digital Mixing Console
12-6 Connectors
Date printed: 10.08.05
12.2.5
External 24 V
DC
Supply
24V DC
2
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3
9
8
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Notes:
For DC operation it is mandatory that a UL approved, external fuse is con-
nected in series with one of the supply lines
(T 3.15 A H 250 V UL/CSA).
The power switch next to the mains power inlet only switches the mains
voltage; for DC operation, an external power switch has to be foreseen by
the installer.
The power alarm output is an open collector pulling to ground if active (max.
24 V
DC
, max. 50 mA) that can be used for illuminating an LED or exciting a
relay.
It is active if the following conditions are met:
• The power alarm enable input is pulled to GND (the easiest way to do
this is a link within the DC supply cable)
• The console is supplied with both AC and DC, and
• Either one of the AC or DC supplies should fail while the other one keeps
up running the console.
If the power alarm output is active, the
POWER ALARM
LED on the console’s
meter bridge is on as well.
External Supply Unit, Cables
An external power supply unit for quasi-redundant operation is available
under order no. 1.918.230.00.
Cables for the DC connection may be ordered in different lengths:
2 m
1.925.231.00
5 m
1.925.232.00
7 m
1.925.233.00
10 m
1.925.234.00
Summary of Contents for OnAir 500 Modulo
Page 1: ...Studer OnAir 500 Digital Mixing Console Operating Instructions ...
Page 17: ...OnAir 500 Digital Mixing Console 0 4 Contents Date printed 30 07 04 ...
Page 29: ...OnAir 500 Digital Mixing Console 3 2 Operating Elements Date printed 30 07 04 1 3 4 5 6 7 2 8 ...
Page 43: ...OnAir 500 Digital Mixing Console 3 16 Operating Elements Date printed 30 07 04 ...
Page 75: ...OnAir 500 Digital Mixing Console 4 32 Menu Pages Date printed 10 08 05 ...
Page 87: ...OnAir 500 Digital Mixing Console 7 4 Effects Date printed 30 07 04 ...
Page 115: ...OnAir 500 Digital Mixing Console 12 12 Connectors Date printed 10 08 05 ...
