Using the Audio In Connector
The rear panel Audio In connector (1/8”, mono audio) sends audio from a connected device to the phone line.
This is useful to monitor transmitter audio when you are beyond the station’s broadcast range.
To turn the Audio In function on, enter 0
07
70
0#
#. The Voice Interface responds, “External audio input On.” Audio
In is active for the period specified in the Audio Input Timeout field, under the Voice Setup tab in Unit
Configuration (see page 47). To stop Audio In prior to the timeout, enter 0
07
70
0**.
Using the Internal Microphone
A small condenser microphone is built into the front panel of the Voice Interface, and can be activated via touch-
tone commands to pick up sound near the Voice Interface. This function can be used to monitor operation of
blowers, verify audible security or fire alarms, or listen for voices.
To activate the internal microphone, enter 0
05
50
0#
#. The microphone is active for the period specified in the
Audio Input Timeout field, under the Voice Setup tab in Unit Configuration (see page 47). To stop Audio In
prior to the timeout, enter 0
05
50
0**.
Note: At high levels of audio input, DTMF commands may become ineffective. If this happens, wait until the timeout
duration has lapsed before entering new commands.
ADDITIONAL VOICE INTERFACE FUNCTIONS
Checking Current Date/Time
Enter 0
06
60
0 for the current date and time (24-hour format), reported by the unit’s real-time clock.
Remote/Local Status
To check whether the current I/O unit is in Remote or Local mode, enter 0
09
90
0. Local mode disables remote
commands.
Check Unit Number and Security Level
To verify the current I/O unit number and security level, enter 0
0**. The Voice Interface will report the unit
number and identify which access privileges are available: observer, or operator.
An alternate code for reporting the security mode is 6
6**. The Voice Interface will report the access level only.
Requery Network
When you initially dial in to the Voice Interface, the unit scans the network to identify all connected I/O units.
To rescan your site, enter 0
04
40
0#
#.
Firmware Version
To report the firmware version currently loaded on the Voice Interface, enter 8
80
00
0.
GSC3000 & VRC2500 INSTALLATION & OPERATION MANUAL
CHAPTER 11: VOICE INTERFACE OPERATION
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