129 of 135
5.2 Communications Time
The following charts show communication time on each mode. It is influenced on practical matters, for example,
radio noise, distance between tags, materials tags are on and other environmental matters.
These charts are generated by plotting and linking average of actual communication time on every 10 tags.
Communication time is measured in shielded room with one reader, so that no reflection and no interference
are considered.
You can refer these charts on determining time out value of the reader command. But you must keep in mind
actual communication time on your environment may not correspond to these charts because of the reasons
already described.
Communication Time
[Protocol: Gen2, Sequence: Multi Read, Communication Mode: Normal]
Actual Communication Time (ms)
150
120
90
60
30
0
Number of Tags
10 20 30 40 50 60 70 80 90 100
* EPC ID: 96bits
Communication Time
[Protocol: Gen2, Sequence: Multi Read, Communication Mode: DRM(Dense Reader Mode)]
Actual Communication Time (ms)
1000
800
600
400
200
0
Number of Tags
10 20 30 40 50 60 70 80 90 100
* EPC ID: 96bits