Difference between revisions of "3020"

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m (Reference: add reference to ND-30.008.3 EN)
(add ECO section, add known ECO's)
 
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==I/O Devices on the card==
 
==I/O Devices on the card==
 
none?
 
none?
 +
 +
== ECO ==
 +
Here is a list of known ECO's (Engineering Change Order) for this card.
 +
* ECO 100-771 - Wrong data is written to tape due to short pulse BUDAT-1<ref name="ECO">sintran.com, Norsk Data library, ECO [http://sintran.com/sintran/library/libeco/libeco.html]</ref>
 +
 
==Reference==
 
==Reference==
 
*{{ND-doc|06.015.02}}
 
*{{ND-doc|06.015.02}}

Latest revision as of 15:04, 10 January 2020

3020 is the STC magtape controller.

Introduction

What does it do?

Switches and indicators

Indicators, from top of the card

  • Error - red LED - indicating an error
  • RFT - green LED - ready for transfer
  • RDYS - green LED - ready status from formatter - selected drive is ready
  • HDENS - yellow LED - high density 6250 BPI (CGR)
  • DMAIN - yellow LED - DMA input - read from magtape
  • DMAOUT - yellow LED - DMA output - write to magtape

Device number thumbwheel switch

  • 2 - Magtape system 1, device no. 520, Ident 3
  • 3 - Magtape system 2, device no. 530, Ident 7

Other positions are unused.

Connectors

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

none?

ECO

Here is a list of known ECO's (Engineering Change Order) for this card.

  • ECO 100-771 - Wrong data is written to tape due to short pulse BUDAT-1[1]

Reference

  • sintran.com, Norsk Data library, ECO [1]