Engineering Specifications

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Important

This information is for use by the provider’s technicians in setting up the system.

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Note

Call LRS for other PLL settings (e.g., European Frequencies)

RS232 Transmitter Operating Instructions

For transmitters with synthesized RF source version 0.03:

• Power: 12VDC
• COM Port settings: 9600, N,8,1 no handshaking at this time
• LED Indicators:
• Power / IDLE - LEFT LED (flashes on/off 1/2Hz)
• RS232RX - MIDDLE LED (data into transmitter)
• RS232TX - RIGHT LED (data out of transmitter)

USA Frequency PLL Settings

RS232 PROTOCOLS: LRS, WaveWare, JTECH (others can be furnished upon request)

Note: Previous hardware revisions of the T7470-C232 would deliver 5 VDC on pin 9 of the DE-9 serial connector. Please be advised that current hardware revisions no longer do this.

USB Transmitter Operating Instructions

For transmitters with synthesized RF source version 6.00:

• Power: 9.6 – 12VAC
• COM Port settings: USB Low Speed
• LED Indicators:
• Power / IDLE - Right LED (flashes on/off 1/2Hz)
• USBTX - Middle LED
• USBRX - Left LED

USA Frequency PLL Settings

• Inputs: 1) TTL 5V max, rising or falling edge detect
• Interface: USB Slow Speed
• RF: 467.750MHz NBFM
• Paging: POCSAG, 1200/2400-bps , non-inverted, Alpha numeric only
• Power: Requires 12VDC, 750mA max when transmitting
• 1 – PC operating with Windows OS
• 1 – USB to Mini-B USB cable
• 1 – 9-12V/AC or DC