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Specifications For Sensor Input/Trigger Output Terminals; Specifications For Parallel Ports - Panasonic WJ-AV20 Operating Instructions Manual

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Specifications for Sensor Input/Trigger Output Terminals

[Viewed from the rear side of this unit]
SENSOR IN/TRIGGER OUT
14 15 16 17 18 19 20 21 22 23 24 25
1
2
3 4

Specifications for Parallel Ports

[Viewed from the rear side of this unit]
PARALLEL PORT
14 15 16 17 18 19 20 21 22 23 24 25
1
2
3 4
Mid-communication output terminal
When the line is connected and communication is start-
ed with the destination, this connector is closed.
There is no perfect coincidence between video or
audio and output timing. This is an open-collector out-
put.
Strobe output terminal
When data at the parallel output connector is updated,
the strobe pulse output is generated from this connec-
tor.
Clock adjust input terminal
When this input terminal is closed, the clock incorporat-
ed in the AV Codec can be corrected. The electrical
conditions are the same as those for parallel input.
Closure should be maintained for more than 100 ms.
85
5 6
7 8
9 10 11 12
13
5 6
7 8
9 10 11 12
13
Sensor input
The conditions for the sensor that can be used are as
follows:
• The operating voltage shall be 5 V DC max. (Open-
collector output or no-voltage make-contact)
• During operation of the make contacts, the voltage
between the [SENSOR IN] input terminal and the
GND terminal shall be 0 to 0.2 V for 100 ms or
more.
• There shall be no chattering problem.
Trigger output
• Open-collector output
• The pulse width shall be 300 ms. There shall be no
making of more than two pulses.
• Max. operating voltage shall be 25 V DC, 50 mA.
Parallel I/O terminals
The signal inputs entering the parallel inputs 1-8 on the
control site are output to the parallel outputs 1-8 on the
remote site. (Similarly, the signals entering the remote
site are output to the control site.) If any one of the par-
allel inputs is closed, then the corresponding parallel
output is generated.
The switches connected to the control site can be used
for the shut/release of the electronic lock connected to
the parallel port of the remote site via relays, etc., or for
ON/OFF switching of lighting. The +12 V output is use-
ful for relay driving. However, the total current cannot
exceed 50 mA. The maximum transmission delay time
for the parallel port is 2 seconds. It is not suitable for
fast control.
• Conditions of the unit that can be connected to par-
allel input terminals
* The operating voltage shall be 5 V DC max. (Open-
collector output or no-voltage make-contact)
* During operation of the make contacts, the voltage
between parallel input terminal and the GND termi-
nal shall be 0 to 0.2 V.
• Conditions of unit that can be connected to parallel
output terminals
* Open collector output
Forced disconnection input terminal
Communication is forcibly finished if the making condi-
tion continues for more than 100 ms between the
forced disconnection input terminal and the nearest
GND terminal.

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