AXN/ENC/402

The AXN/ENC/402 is used to encode data in an IRIG-106 Chapter 7 (2017) PCM stream.

Parameters from any Axon module in the chassis can be placed in the Ch.7 PCM stream. Parameters from other Axon chassis or Ethernet sources can also be placed in the Ch.7 PCM stream.

Ethernet frames generated in the Axon chassis can be wrapped and placed in the Ch.7 PCM stream. Ethernet frames from other Axon chassis or Ethernet sources can also be wrapped and placed in the Ch.7 PCM stream. The AXN/ENC/402 supports IRIG 106-17 Ch.7, which allows the mixture of wrapped Ethernet frames and placed parameters in the Ch.7 PCM stream.

Multiple AXN/ENC/402 modules can be included in an Axon system and parameters can be sent to some or all encoders. The AXN/ENC/402 has differential-ended RS-422 outputs for data and clock along with buffered TTL outputs for NRZ-L, DATA, DCLK, word, minor-frame and major-frame pulses.

The AXN/ENC/402 also has a programmable premodulation filtered analog output, which is suitable for use with a linear FM transmitter for telemetry. The cutoff frequency and amplitude can be changed to suit the bit rate and transmitters deviation sensitivity. All physical outputs transmit the same payload data using independent line encoding (PCM codes) configurations.