Matrix
136
Vision System Manual
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What’s this?
• A station can deliver a message to a mass of people just by lifting your handset and dialing a code.
• This feature is helpful when it is required to call few people for meeting.
• This feature is of great use in factories, offices, etc. where it is not feasible to provide a station to every
individual. In such cases, if you need to call somebody you can just make an announcement naming him to
come and see you or call you.
• This can also be used for mass communication.
How to make connection for the PAS port?
The Vision supports one audio output port for personal address/public address.
• If personal address is to be made, a speaker of 4Ù/8Ù can be directly connected to the PAS port.
• Please take care to keep the jumper J6 on the card in A-B position.
• If public address is to be made, an external amplifier with matching speaker should be connected to the PAS
port. The jumper J6 should be in B-C position.
• Connect a good quality amplifier and matching speaker to the audio port marked PAS as shown in the figure
given below:
• Keep the distance between the PBX and the amplifier to reduce noise pick up.
• Use shielded cable for connecting the system with the amplifier.
• The specifications of the PAS port are given below:
Specifications Value
Interface Type Audio signal
Frequency 300 Hz to 3400 Hz
Maximum voltage 0.707 Vrms across 600Ω
Source impendance 600Ω
Termination Required 600Ω
DC bias None
Isolation Internal Transformer
How to use it?
1 Lift the handset. Dial tone
2 Dial
3998.
Start Announcement.
Example:
To announce a message, dial 3998 from your station and start announcement.
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