User Manual

COMMUNICATION CERTIFICATION LABORATORY TEST REPORT: 73-6560
FCC ID: NQE1005
NQE1005 TIM TRANSMITTER
Specifications
Data Transmission
The NQE1005 TIM Transmitter will transmit 11 bytes of data every
time the event counter capture matches the programmed interval.
Each transmission occurs on one of 25 distinct frequencies
between 905.8 and 924.2MHz.
Sync Flags
65 sync flags (data 7Eh) will be sent out to allow receiver
to synchronize on the transmission frequency.
Sync Byte
1 sync byte (data AAh) will be transmitted to indicate start
of packet
Address
32 bit (4 Byte) address transmitted
Input Status
Status of external input other than pulse count input.
Status of input reflected in the status byte sent at the
time of transmission.
Counter
16 bit (2 Byte) up counter keeping track of switch closures
(normal state of input pin is active high). Counter will
increment on switch closure (negative edge).
CRC Bytes
2 bytes of CRC data transmitted to ensure accuracy of
transmitted data
Programming
The TIM Transmitter is programmed using the PC parallel port to
operate a synchronous serial data transfer using 3 I/O pins from
the Transmitter (switch input, pclock and pdata). Data valid on
rising clock edge. The data transfer format follows:
Command
1 command byte to indicate to TIM to read and send or
receive and write data from/to EEPROM