Toa Venas VM-2000 Series, Cookbook

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SURVEILLANCE FUNCTIONS SURVEILLANCE FUNCTIONS
Surveillance I/O Connector Functions
6
-3
SV-200M's D-sub female connector
13 1
25 14
SURVEILLANCE I/O
Locking nut: 4-40 UNC
SURVEILLANCE I/O connector pin function table
The rear panel Surveillance I/O connector* permits "Speaker Line Reference Impedance Measurement
(Initial Setting)" and "Speaker Line Check" to be enabled and monitored by connected external equipment.
Referring to the pin arrangement and functions, prepare the matching D-sub male connector (screw-lock
type) for connection to the external equipment.
* Requires installation of the optional SV-200M Surveillance Board.
Function/status
Zone 1 speaker line is shorted.
Zone 1 speaker line is disconnected.
Zone 1 speaker line is shorted.
Zone 1 speaker line is disconnected.
Zone 1 speaker line is shorted.
Zone 1 speaker line is disconnected.
Zone 1 speaker line is shorted.
Zone 1 speaker line is disconnected.
Zone 1 speaker line is shorted.
Zone 1 speaker line is disconnected.
Some of speaker lines are grounded.
Power amplifier is faulty.
During measurement of the speaker line reference
impedance (Initial setting) or during check of the speaker
lines.
The speaker line reference impedance couldn't be
measured successfully. (The measured impedance
exceeds the expected range or is unstable.)
Not used.
Check of the speaker line impedance starts.
Measurement of the speaker line reference impedance
(Initial setting) starts.
Signal/logic
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
Active Low
One-shot make
One-shot make
IN/
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
Signal name
Zone 1 short
Zone 1 Disconnection
Zone 2 short
Zone 2 Disconnection
Zone 3 short
Zone 3 Disconnection
Zone 4 short
Zone 4 Disconnection
Zone 5 short
Zone 5 Disconnection
Ground fault
Power amplifier failure
Setting/checking busy
Initial setting error
Speaker line check
activation
Speaker line initial setting
activation
GND
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
I
22
23
24
25