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Hardware
Physical Interface
Version 1.03
3-5
3.4 Physical Interface
NetPorty II has the transceiver chip 82C251 (according
to ISO 11898) as physical interface. It is not galvanic
disconnect. The standard physical interface is linked to
the SJA1000, the Output Control Register must be set
to 0xFA.
To connect the second CAN channel or the ISO 9141
channel an optional physical line driver have to be
ordered.
3.5 Optical interface
State of LED during download firmware:
At serial download: no fixed state.
At parallel download LED 1 green
LED 2 green (flashing)
State of LED during work:
Color LED 1 LED 2 LED 3
Red - - Bus off
green Life cycle flash Flashing during
RS232/Parallel
data transfer
Bus on
2. Data transfer 3. BUS on/off1.Life cycle flash