06/29/17 ICA-202D OPERATION AND INSTALLATION MANUAL Page 16 of 32
Call Tone Control
The three sets of Call Tone jumpers accommodate many control schemes
The Call Tone sounds through the Operator Speaker
The Call Switch may be internally latched (Jumper Option) using the internal register
Or the Call signal may be controlled by an External Controller (Jumper Option)
When the external controller is used the state of the Intercom is ignored, and the Call
signal sounds whenever the 'Call Switch' is low (The Jumper selection for Level
Triggered is used)
If the Call Switch request is latched (Jumper Option),
only a momentary closure of the Call switch is required.
When the Intercom becomes Active (Jumper Option), the Call Tone is canceled.
If the Call Switch is pressed while the Intercom is Active it is ignored.
When the PTT Switch is pressed (Jumper Option), the Call Tone is canceled.
If the Call Switch is pressed while the Intercom is Active the Call Tone will sound.
When the Call Switch is ‘edge triggered’ (Jumper Option) the normal setting, the Call
Tone switch must be released and re-pushed while the intercom is inactive (Jumper
Option) to cause a new call tone to sound. This option is helpful if the Remote Station
user is in a panic, and will not release the Call Switch.
When the Call Switch is ‘level triggered’ (Jumper Option), the Call Tone will sound
whenever the Call Tone switch is closed and the intercom becomes inactive (Jumper
Option)
Call Tone Configuration Jumpers:
Edge Triggered Call Tone ON
Level Triggered Call Tone OFF
Momentary control by external PLC, Edge Trigger=OFF Non-Latched
Use the internal Registers to sustain the call Latched
When Internal Register Sustains Call (No affect in Non-Latched)
Call Cancelled by ACTIVE State
Call Cancelled by PTT Switch
Call Tone Level
0dBm (Same level as Communications) HI
-6dB MED
-12dB LO Setup Adjustments
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