Studer SW V4.0 OnAir 1000 Operating And Service Instructions page 133

Power-Down
Pin Assignment
Female (Supply) Male (Console)
3 2 1
7 4 4
10 9 8
Single Supply for Red. Version:
Ordering Information
Date printed: 23.10.03
output on pin4 of both DC supply connectors of the console, illuminating
the "POWER ALARM" LED on the front panel of the Redundancy PSU.
The power alarm output is a relay contact (max. 40 V/200 mA). Its be-
haviour depends on jumper J1 on the PSU sub board.
Pin4 is normally floating, and pulled to GND if alarm is active (P8 and P9
connected, default factory setting), or pin4 is normally pulled to GND and
becomes floating if alarm is active (P7 and P8 connected).
Note: It is recommended to leave the jumper setting as it is. If it is changed, the
POWER ALARM LED on the front panel of the 19" supply unit will be il-
luminated if everything is alright, and vice versa.
Should the supply voltage drop below 21.6 V, the console automatically
shuts down after having stored all relevant data.
A supply voltage of min. 22.0 V is required for correct start and operation
of the console.
"24 V A" and "24 V B" connectors on the supply unit (10pin, female)
"24 V A" and "24 V B" connectors on the console (10pin, male).
Pin Signal
1 +22...28 V
2 +22...28 V
3 +22...28 V
4 Power alarm output (see "Alarm Output" above)
1 2 3
5 not used
7
6 PSS1, Power supply select 1 (see "Single Supply for Redundant Version" below)
8 9 10
7 GND
8 GND
9 GND
10 GND
Mating cable connectors: 54.20.2010 (female), 1.918.210.01 (male).
If only one 24 V
dant Supply Version, this supply must be connected to the console's "24 V
A" connector. In such a case, a bridge from pin6 (PSS1) to pin7 (GND)
must be inserted in the female 10pin 24 V
to insert this bridge in a second 10pin connector plugged to the console's
"24 V B" connector.
Even if there is only one 24 VDC supply, the secondary switchers are still
doubled for redundancy.
OnAir 1000 Analog-biased version, for red. supply .............. 71.129.441.10
OnAir 1000 Digitally-biased version, for red. supply ............ 71.129.443.10
24 V connection cable, 2 m (1 pce.)...................................... 1.925.230.00
DC
24 V connection cable, 5 m (1 pce.)...................................... 1.925.231.00
DC
24 V connection cable, 7 m (1 pce.)...................................... 1.925.232.00
DC
24 V connection cable, 10 m (1 pce.).................................... 1.925.233.00
DC
Note: Cables must be ordered separately (2 pcs. needed)
Redundancy PSU, 19" rack-mount external supply unit
(included in the OnAir 1000 Red. Supply versions) ................ 1.918.225.00
OnAir 1000 Analog-biased version, standard supply............. 71.129.440.10
OnAir 1000 Digitally-biased version, standard supply .......... 71.129.442.10
SW V 4.0
OnAir 1000 Digital Mixing Console
DC
DC
DC
supply should be connected to an OnAir 1000 Redun-
DC
connector. It is recommended
DC
Wiring and Hardware 14-5