Table 2
:
LED indication of I-7565-H1/H2
LED Name
I-7565-H1/H2 Status
LED Status
Hardware Init Fail
All LED always turned on
permanently after reset
Hardware WDT Fail
All LED flash per 2 second
ALL LED
Contact to ICP DAS
All LED flash take turns
Firmware Updating Mode
Flash per second
Firmware Operation Mode
Always turned on
PWR LED
Power Off
Off
Transmission
Flash
RUN LED
Bus Idle
Off
Transmission Fail
Flash per 100 ms
Buffer Overflow
Flash per second
Bus-Off
Always turned on
ERR LED
No Error
Off
2.7 Cable Selection
The CAN bus is a balanced (differential) 2-wire interface running over
either a Shielded Twisted Pair (STP), Un-shielded Twisted Pair (UTP), or
Ribbon cable. The CAN-L and CAN-H Wire start on one end of the total
CAN network that a terminator of 120 Ohm is connected between CAN-L
and CAN-H. The cable is connected from CAN node to CAN node,
normally without or with short T connections. On the other end of the cable
again a 120
Ω
(Ohm) terminator resistor is connected between the CAN
lines. How to decide a cable type, cable length, and terminator depends
on the baud rate in the CAN bus network, please refer to the following
table 3.
Figure 2-14
:
Un-shielded Twisted Pair (UTP)
I-7565-H1/H2 High Performance USB/CAN Converter User’s Manual (Ver 1.7, Aug/2011) ------------- 16
