Studer SW V4.0 OnAir 1000, Operating And Service Instructions

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OnAir 1000 Digital Mixing Console
14-16 Wiring and Hardware
SW V 4.0 Date printed: 23.10.03
EXT PFL CTRL (D-type, 9 pin, male):
Pin Signal Pin Signal
1 +5 V SUPPLY 6 External PFL IN +
2 External PFL IN – 7 External TB to CR –
3 External PFL OUT 8 Spare OUT
4 External TB 9 External TB to Studio –
5 GND
Notes: “External PFL IN +” and/or “External TB COMMON” can be connected
either to “+5 V SUPPLY” or to an external power supply (max. +15 V
DC
).
A pushbutton or an active-low control signal from a radio automation sys-
tem is connected between the “–” control inputs and “GND”. The inputs
are opto-coupler inputs with internal 1 k
Ω
current limiting resistors.
The “External PFL OUT” output is an open-collector output; a small load,
such as an LED, an opto-coupler, or a relay can be driven directly.
The
current must not exceed 100 mA.
The “+5 V” supply current for LEDs, opto-couplers, or relays must not
exceed 50 mA in total.
1
2
3
4
5
6
7
8
9
1 k Ω
6 External PFL IN +
1 +5 V SUPPLY
max. 50 mA
+5 V
max. 100 mA
5 GND
2 External PFL IN –
3 External PFL OUT
8
Spare OUT
1 k Ω
4 External TB
7 External TB to CR –
1 k
Ω
9
External TB to studio –