time tagging in receiver

[latchu]

dear sir,

Products in arinc standard highlights a feature" receiver/ transmitter time tagging",and a time tagging register with 40 bits,.5 uS(for example only). can you explain what is time tagging

[David S.]

Hi random number -

I'm not sure how to help you, given the information in your post.

• Which ARINC standard are you working with?
• What is your application?
• Do you have a copy of the standard that we can view to understand the context of your question?
• Are you using any NI hardware or software in your application?
• Do you need information to help you design a system that uses NI hardware or software?
  

My blind guess is that the feature is specifying a timestamping operation on the transmitted data and the received data.  This could possibly be used for comparison in some sort of test or verification process.

[latchu]

dear sir,

thanks for your mail. i am working on arinc708 weather radar interface. when i was searching similar products in net i found that term time tagging. i can sure that it is not time stamping. because i found one product with both time stamping and time tagging. most of arinc products has that feature(not only arinc708). please search as "time tagging + arinc " in google. there you can find out lot of product datasheets. from there only i found it. please try it.

thank you

lakshmi narayanan

[David S.]

Hi Lakshmi -

I searched for "ARINC 708" and found a few products referring to "IRIG time tags".  So I looked into those, and it appears that a time tag is simply a section of the data message that contains a time stamp from an IRIG-A or IRIG-B receiver.  The IRIG signals are transmitted by GPS satellites, and are very finely tuned for absolute timestamping.

I'm not familiar with this subject matter myself, so I won't be able to help you out much further than this.  I encourage you to contact an ARINC equipment manufacturer for any additional questions you have about the standard or their equipment features.

[latchu]

dear sir,

Will arinc708 support half duplex or full duplex transmission

thank you