3042

3042, 2 MBytes memory card, component side

3042, 2 MBytes memory card, solder side

3042, 2 MBytes memory card, card edge

3042 is a 1 or 2 Mbyte memory card.

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Introduction

1 or 2 Mbyte memory for a ND-100 machine.

Switches and indicators

Lower limit thumbwheel switches TH1, TH2 and TH3. These set the lower limit of the memory address range for this card. Enable / disable switch - enables or disables error correction.

Upper limit display - displays the upper limit of the memory address range for this card.

TH2 TH1 TH3  upper limit display  memory address 
(octal)           (octal)          range (kW)
 0   0   0          100              0 - 1024
 0   2   0          120            256 - 1280
 0   4   0          140            512 - 1536
 0   6   0          160            768 - 1792
 1   0   0          200           1024 - 2048
 1   2   0          220           1280 - 2304
 1   4   0          240           1536 - 2560
 1   6   0          260           1792 - 2816
 2   0   0          300           2048 - 3072
 3   0   0          400           3072 - 4096
 4   0   0          500           4096 - 5120
 5   0   0          600           5120 - 6144
 6   0   0          700           6144 - 7168

ENABLE / DISABLE switch

• 0 (DISAB) - disables error correction. Clears the ERROR-DETECED indicator.
• 1 (ENAB) - enables error correction.

Indicators

memory access indicators (access into different memory blocks on this card) - yellow

T6 - 1.5M - 2.0M
T5 - 1.0M - 1.5M
T4 - 0.5M - 1.0M
T3 - 0    - 0.5M

T2 - Error - red - lights when a memory error is detected
T1 - Disable - red - lights when error correction is disabled (by switch or program)

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?

ND sales number

• ND-370 - 1 Mbyte
• ND-380 - 2 Mbyte

Gallery

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Reference

Norsk Data Document ND–06.026.1 ND-110 Functional Description , page 123 - 124

• Norsk Data Document ND–30.008.3 EN ND-100 Hardware Maintenance , page 228