3019 is ECC disk controller SMD data.
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What does it do?
Switches and indicators
- ERR - red LED, indicating an exclusive OR of errors
- CYL - yellow LED, indicating ON CYLINDER
- START - yellow LED, indicating CONTROLLER ACTIVE
The A and B connectors are used for I/O, the C connector is used for the ND-100 Bus.
I/O Devices on the card
- Norsk Data Document ND–30.008.3 EN ND-100 Hardware Maintenance