Toa VS-900 - Manual (Page 46)

3-18
CHAPTER 3. CONVENIENT FUNCTIONS
11. EXTERNAL SOURCE DISTRIBUTION
11.1. Function
By activating the input, external sound sources can be distributed to pre-programmed paging zones.
Permits source distribution to up to 19 individual zones (01 – 19) established by combining multiple
substations with external public address system equipment. Two or more individual zones can simultaneously
be selected.
[System pre-programming]
Up to 9 (19) paging zones can be registered for each activation input (up to 4 inputs) in system programming.
(Up to 1,024 substations and up to 16 selective external public address equipment outputs to be included in
each zone are registered in the Zone Paging system programming.)
11.2. External Source Distribution Operation
(1) When the activation input is made, announcements from external equipment are made to the pre-
programmed paging zones. The announcements are terminated when the activation input is broken.
Note: Multiple activation inputs cannot be used simultaneously.
(2) There are 4 activation inputs, and 1 audio input.
[Priority]
When an activation input accepts a make pulse, its rising edge allows the external source distribution
operation to perform. During its operation, any other input will not accept a make.
12. PAGING TIME-OUT
Paging calls that exceed a set time limit are automatically terminated. (This function is used mainly to prevent
the line from being occupied because the user forgot to turn off the function.) The Time-Out function is
disabled when an emergency paging call is placed.
[System pre-programming]
• Program whether to [Enable] or [Disable] the Paging Time-Out function.
• Paging time-out (10 – 990 seconds in 10 second units) common to both Individual Zone and All-Zone Paging
functions can be registered in the system programming.
No. 11 No. 12 No. 13 No. 14
Zone No. 2
No. 19
Zone No. 3
Amplifier
Speaker
Zone No. 1
Amplifier
Speaker
1
2
3
4
Sound source
Make signal
VS-900 exchange
Audio input
Activation
input
Chime, etc.