COM20051 Datasheet, PDF (17/82 Pages) List of Unclassifed Manufacturers – Integrated Microcontroller and ARCNET (ANSI 878.1) Interface

#5 ITT to #1
#1 FBE to #5
#5 ACK to #1
#1 PAC to #5
#5 ACK to #1
#3 ITT to #4
#4 NAK to #3
#3 FBE to #4
#2 ITT to #3
#1 ITT to #2
#4 ITT to #5
SEQUENCE OF LINE EVENTS
1) NODE 1 RECEIVES TOKEN FROM NODE 5
2) NODE 1 TRANSMITS TO NODE 5
A) ISSUES FBE TO NODE 5
B) NODE 5 IS READY TO RECEIVE SO IT ISSUES AN ACK
C) NODE 1 NOW TRANSMITS THE DATA
D) NODE 5 RECEIVES THE DATA ERROR FREE AND ISSUES AN ACK
3) NODE 1 PASSES TOKEN TO NODE 2
4) NODE 2 DOES NOT NEED TO TRANSMIT AND PASSES THE TOKEN TO NODE 3
5) NODE 3 NEEDS TO TRANSMIT TO NODE 4
A) ISSUES AN FBE TO NODE 4
B) NODE 4 IS NOT READY TO RECEIVE AND IT ISSUES A NAK
6) NODE 3 PASSES THE TOKEN TO NODE 4
7) NODE 4 PASSES THE TOKEN TO NODE 5
8) GO TO STEP 1
FIGURE 5 – AVERAGE SEQUENCE OF LINE EVENTS FOR A FIVE-NODE NETWORK
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