OVERVIEW
Thank you for purchasing a MINDA Intelligent Transmitter, which uses a low-power
microprocessor for ‘house-keeping’ and offers the following programmable options:
• A Unit Identity Code (TX ID number 1,2,3,or 4) which will allow a single receiver to identify up to
four different transmitters.
• A very secure Family Identity Code, enabling secure use of multiple groups of transmitters and
receivers together in the same location - without receiving alarms in ALL receivers.
• Full compatibility with other MINDA equipment
• Alarm signal repeat at programmable intervals
• Automatic transmission of Confidence signals is possible
• Transmitter ‘Low Battery’ alert sent to receiver
• Very low power consumption
Keep this instruction manual in a safe place
- it contains important information and helpful tips
which will assist you to obtain the best possible performance from your new MINDA system.
OPERATING FREQUENCY
All MINDA systems for use in the United States operate on a frequency of 418MHz in the UHF
band. The operating radio frequency cannot be changed to suit a specific customer’s needs.
BATTERY INSTALLATION
The MINDA TX-500 transmitter requires an internal 12 volt 33mA/hour battery type GP 23A
(Duracell type MN-21).
To install a new battery into a key-fob style transmitter, the two-piece case must be pried open by
inserting and carefully twisting a flat-bladed screwdriver into the groove formed by the two case
halves. The old battery can then be removed and replaced by a new one, taking care to ensure
that it is orientated in accordance with the polarity markings on the inside of the case. The case
top should then be carefully aligned with the LED and gently but firmly snapped closed just using
finger pressure.
OPERATION
The TX-500 will only communicate with an appropriate MINDA receiver, such as the RX-400
pocket receiver, or the RX-500 portable/mobile/tabletop receiver.
The TX-500 is operational immediately upon inserting the battery.
The unit
is
equipped with an On/Off switch that is magnetically controlled. To turn the TX-500
OFF, place the unit firmly in its holder. To turn the TX-500 on, remove it from the holder.
The TX-500 has two buttons: RED and BLUE. The RED button sends a RED ALARM to a
MINDA receiver. The BLUE button sends a GREEN alarm to a MINDA receiver. Press and hold
either button for at least 1 second to transmit your alarm.
The TX-500 may be programmed to automatically transmit a GREEN or RED 'confidence alarm'.
This signal may be programmed to transmit every few seconds or every few minutes. The timing
of this transmission begins upon battery insertion. See the section on CONFIDENCE MODE for
more details.
The TX-500 has two LED's: RED and YELLOW. The red LED illuminates during transmissions.
In use, if the red LED on the transmitter fails to light, or is lit dimly, the transmitter battery probably
needs to be replaced. The yellow LED depicts the programmed Unit Identity Number.
