3042
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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
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