Ethernet Adaptor 01-103
Sparr Electronics Ltd., Bangalore
28
PROBLEM
CHECK
Reset Problem
When You Power on the EAD without
Connecting LAN Cable, POWER ON LED will
blink for 12.5 seconds and then will remain on.
If you connect LAN Cable, the YELLOW
LINK LED should glow
Link is not detecting
Check the LAN cable
Not able to connect to LAN
Check the LAN cable, when you connect the
LAN cable to EAD YELLOW LED should
glow.
Check the IP Address and Port Number
programmed.
Getting junk character in serial
side
Check the serial settings
1)
Baud rate
2)
Flow control and
3)
Data parameter
Check the Serial connection from devise to
EAD
Not able to send data from
serial device to EAD
Check the Serial connection
Checks the Tx/Rx are connected to
corresponding pins.
For serial pinout details refer the
Connection
and pinout diagrams
section in the manual
.
16 Glossary of Terms
In the section, we give brief definitions of several important networking terms and
acronyms.
______________________________________________________________________
A
ARP (Address resolution Protocol)
Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol
address (IP address) to a physical machine address that is recognized in the local network.
A table, usually called the ARP cache, is used to maintain a correlation between each
MAC address and its corresponding IP address. ARP provides the protocol rules for
making this correlation and providing address conversion in both directions.