OnAir 1000 Digital Mixing Console
14-2 Wiring and Hardware
SW V 4.0
Date printed: 23.10.03
Alarm Output
Power alarm is triggered if the internal or external supply voltage drops
below 23.0 V; then the POWER ALARM LED on the front panel is illu-
minated, and a power alarm signal is output on pin 4 of the DC supply
connector.
The power alarm signal is a relay contact (max. 40 V/200 mA). Its behav-
iour depends on jumper J1 on the PSU sub board (see component layout
diagram on the previous page); either pin 4 is normally floating and pulled
to GND if alarm is active (P1 and P2 connected, default factory setting), or
pin 4 is normally pulled to GND and becomes floating if alarm is active
(P1 and P3 connected).
Should the supply voltage drop below 21.6 V, the console automatically
shuts down after having stored all relevant data.
For correct start of the console a supply voltage of min. 22.0 V is required.
Pin Assignment:
24 V DC connector
(10pin, male)
Matching female connector: Hirose JR21PK-10S, order no. 54.20.2010
Pin
Signal
1
+22...28 V
DC
2
+22...28 V
DC
3
+22...28 V
DC
4
Power alarm output (see “Alarm Output” above)
5
Power supply select 2 (see “Wiring” above)
6
Power supply select 1 (see “Wiring” above)
7
GND
8
GND
9
GND
10
GND
2
1
3
9
8
10
4
7
Summary of Contents for SW V4.0 OnAir 1000
Page 24: ...OnAir 1000 Digital Mixing Console 0 6 Contents Part 1 SW V 4 0 Date printed 23 10 03...
Page 34: ...OnAir 1000 Digital Mixing Console 2 6 General SW V 4 0 Date printed 23 10 03...
Page 82: ...OnAir 1000 Digital Mixing Console 7 2 Signaling SW V 4 0 Date printed 23 10 03...
Page 88: ...OnAir 1000 Digital Mixing Console 8 6 Machine Control SW V 4 0 Date printed 23 10 03...
Page 128: ...OnAir 1000 Digital Mixing Console 13 10 Diagnostics SW V 4 0 Date printed 23 10 03...
Page 164: ...OnAir 1000 Digital Mixing Console 16 6 Index SW V 4 0 Date printed 23 10 03...
Page 166: ...OnAir 1000 Digital Mixing Console 0 2 Contents Part 2 SW V4 0 Date printed 24 10 03...
Page 170: ...OnAir 1000 Digital Mixing Console 1 4 Features SW V4 0 Date printed 24 10 03...
Page 182: ...OnAir 1000 Digital Mixing Console 2 12 Hardware SW V4 0 Date printed 24 10 03...
Page 216: ...OnAir 1000 Digital Mixing Console 5 16 Service Terminal SW V4 0 Date printed 24 10 03...
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