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6 F 3 B 0 3 6 2

= Data fields in

the packets traveling on the transmission path

IP data field (up to 1480 bytes)

Preamble (7 bytes)

Signal used to synchronize reception

SFD (Start Frame Delimiter) (1 byte)

Remote port address (6 bytes)

Local port address (6 bytes)

Ethernet type (2 bytes) 0800H:IP, 0806H:ARP

IP header (20 bytes)

UDP header	TCP header
(8 bytes)	(20 bytes)

UDP data field

(up to 1472 bytes)

TCP data field

(up to 1460 bytes)

FCS (Frame Check Sequence) (4 bytes)

32-bit CRC code for the sections of the packet other than the preamble, the SFD, and the FCS.

(Packet error detection)

Toshiba T2N instruction manual ⎯ 139 ⎯