21
v is the Volume (digit between 1 and 4)
d is tenth digit of the time interval (digit between 0 and 9)
s is single digit of the time interval (digit between 0 and 9)
For example, to activate the FM background music for 125 minutes with volume 2, enter GM951225.
5. To deactivate the FM radio background music, enter GM960100 in the VPS software message field.
6. On the VPS software click on Send Page to send the command.
Follow these steps to change the FM radio background music frequency stored on the wireless amplifiers:
1. Program an alphanumeric device in to the VS4500. Verify that the wireless amplifier / speaker capcode was programmed
properly (Device Type should be set to Alphanumeric Pager).
2. Connect to the VS4500 using the VPS software and click on System Devices & Messaging.
3. On the VPS software device list, click on the alphanumeric device programmed on step 1.
4. Enter a message using the FMsvbf* format in the VPS software message field:
s is the squelch or signal threshold level (digit between 0 and 9, 0 is Lowest, 9 is Highest)
v is the Preamplifier Volume (digit between 1 and 9, 1 is Lowest, 9 is Highest)
b is the Bandwidth (always 5)
f is the FM radio frequency in MHz (7 digits, no decimal points)
For example, to set the FM receive frequency to 95.7 MHz with squelch level of 3, enter FM3150957000 followed by *.
5. On the VPS software click on Send Page to send the command.
3.8 Pre-Programmed Messages
The VS4500 support the following optional pre-programmed messages:
1 - PABX Messages
2 - FreeText Messages
3 - Wireless Devices
These messages can only be programmed using a PC software such as the VPS (see page 24 for more details).
3.8.1 PABX Messages
PABX (Alpha by Phone) messages provide support for user initiated alphanumeric messaging by dialing in to the VS4500
and entering the device number and message using a telephone keypad.
Typically, when users dial in to the VS4500, they will be able to send numeric messages only using the telephone keypad.
The PABX messages allow the users to enter a message code, which represents an alphanumeric message. In this case, the
alphanumeric message will be sent instead of the message code.
Following are the fields description:
Message
Determines the message that should be sent for the selected PABX message code. For
example, if the user enters “*05”, the actual message will be the alphanumeric message
programmed as PABX message 5.
Note: The VS4500 supports 99 PABX messages.
3.8.2 FreeText Messages Menu
FreeText messages provide support for detecting keywords in data received by the serial port. If the keyword is found, the
VS4500 can send a message to the assigned device.
Following are the fields description:
Send to Device
Enter the number of the device that should receive the message when the selected keyword is
detected.
Replace Text
Determines if the received text should be replaced with the text in the Newtext field if the
keyword is found in the received serial data.
Keytext
Determines the keyword that should be sought for in the received serial data. If the keyword is
found, the whole serial data string or the text in the Newtext field will be sent to the assigned
device (depending on the setting in the Replace Text field).
Newtext
Determines the text that should be sent to the assigned device if the keyword is found in the
received serial data.
Note: The VS4500 supports 99 FreeText messages.
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