BHT-805B
PING Echo Request Transmission Timing (SEND TYPE)
Two types of echo request send timings are available: TYPE 1 and TYPE 2.
ν
TYPE1
After sending an echo request, PING waits for the period specified at INTERVAL and then sends an echo
request again. For TYPE 1, the relationship between the INTERVAL and TIMEOUT should be
“INTERVAL
≥
TIMEOUT.”
Sends an echo request
Interval
Timeout period
Receives an echo reply
Sends an echo request
ν
TYPE2
After sending an echo request, PING waits for an echo reply to be received or for a timeout to occur.
Following that, PING waits for the period specified at INTERVAL and then sends the next PING echo
request. For TYPE 2, no relationship between the INTERVAL and TIMEOUT is required.
If PING receives an echo reply:
Sends an echo request
Interval
Receives an echo reply
Sends an echo request
If a timeout occurs:
Sends an echo request
Interval
Timeout occurs
Timeout period
Sends an echo request
108
Summary of Contents for BHT-805B
Page 1: ...Barcode Handy Terminal BHT 805B User s Manual...
Page 23: ...BHT 805B 10...
Page 157: ...BHT 805B 144...
