5
6. External interfaces
6-3. Tally connector
The tally connector comes with tally output, output enable, power supply or fan alarm output pins.
The output signals from the tally output pins are for lighting the tally lamps, and these outputs are open collector
outputs.
Pin assignment
Pin No.
Signal name
Input/output
Description of signal
1
IN1
Open collector output
Tally output of input video 1
IN
Open collector output
Tally output of input video
3
IN3
Open collector output
Tally output of input video 3
4
IN4
Open collector output
Tally output of input video 4
5
IN5
Open collector output
Tally output of input video 5
6
IN6
Open collector output
Tally output of input video 6
7
ENABLE
Input
Enable signal of tally output
Open: Output; GND: no output
8
ALARM
Open collector output
Fan alarm or power supply alarm output
9
GROUND
GROUND
Ground
Pins 1 to 6 and pin 8 must satisfy the following conditions:
Dielectric strength: Max. DC 4 V
Current:
Max. 50 mA
Example of tally connections
AV-HS300G
(Max. voltage: 24V)
Tally LED
GROUND
(Max. current: 50mA)
Tally, Alarm output
(IN1 to 6, ALARM)
5
4
3
2
1
6
7
8
9
Summary of Contents for AVHS300G - HD SWITCHER
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