SH ARC-66
Version 03.00
The internal jumper for the termination offers the possibility of
terminating with 93 ohm (left picture above) or with 120 ohm (right
picture above).
Type of cable
Wellenwiderstand
coax
93 ohm
twisted pair
e.g. 120 ohm
3.6 Red LED
The red LED will be active if the SH ARC-66 is accessed by the ISA bus.
These accesses become visible by prolonging the impulse lenght.
Status of the LED Description
Active
Access to SH ARC-66
Dark
There is no access (chip select) to the SH ARC-66
3.7 Green LED
The green LED indicates activities on the ARCNET bus.
Status of the LED Description
Active
Network OK (Token revolves)
Flashing (short
“blinding out” 1sec)
Network tries to re-configure itself (reconfiguration).
However, no other node is found.
Dark
Card does not have any supply voltage or
Node ID = 0 and card is not initialized
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