69
Configuring Informers Using Commander Software (Optional)
Setup, Program, and User Manual
Federal Signal www.fedsig.com
Fields
Description
Voice under-run delay
(seconds)
Underrun occurs when a device runs out of data during
live streaming PA or VOIP causing the audio to cut out,
also known as buffering. To mitigate buffering the under-
run delay setting allows playback to be delayed by a fixed
duration to allow the device to accumulate data before
playback begins. This headroom will help fill in the gaps in
the event network speed is insufficient for live voice. Set
the number of seconds the device will buffer audio before
starting playback. On reliable high-speed networks, 1 or
2 seconds should be sufficient. Slow networks and some
wireless systems may require 5 seconds or more.
Relay
To close a relay output during live PA, select the check box
associated with the relay number. In all cases the relay(s)
will close at the start of live PA and open when the unit
disarms at the termination of the message. This feature and
the number or relays available is dependent on the Unit
Type.
Radio PTT On
This feature is available for Informer-IPSIU type units for
the control of a radio transmitter. To broadcast messages
on the radio transmitter during live PA, select Radio PTT
On.
Channel busy hold off
(0-30 seconds)
The hold off time specifies the maximum time in seconds
the unit will wait for the channel to become available before
transmitting. If the channel does not become available
within this time, the option buttons define the action to take,
either abort the transmission or send despite the channel
being busy. During the hold off period, the incoming
message is buffered so no part of the message is lost.
On time out
(Abort or Send)
The Abort and Send buttons specify the action to take if the
radio channel is busy (carrier present).
4. Select Informer-IPSIU.
5. Select the Radio PTT On check box.
6. Enter the number of seconds for Channel busy hold off. If set to 0, all alerts are
broadcast to the radio system immediately. If set to 1-30 seconds, the I-IPSIU waits for
Carrier Detect (C.D.)/audio detect to clear prior to sending the alert. See table above.
7. Click either Abort or Send. The Abort option cancels the radio if the radio channel
does not clear. The Send option sends the activation regardless of the Carrier Detect
status.
8. Click Save to store the selection into the Commander database or click Quit to close
and discard changes.
The Configure RTU General Parameters dialog box is now active.
9. Click Send to send the program information to the Informer.
