185 (NORD-1 card)

185 is a card that is used in several places in the NORD-1 CPU and I/O crates. It is a differential line driver / receiver.

File:NORD-1 card 185-c.jpg

Component side.

File:NORD-1 card 185-s.jpg

Solder side.

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Introduction

This card is used as a line driver or receiver for differential signals to external devices, like SMD data or control.

It is documented in drawing 2A85.

Switches and indicators

There are no switches or indicators on this board.

BOM

• 2 x 7437N Quad 2-input NAND buffers
• 9 x 75107 (75108) Dual line receivers
• 9 x 75109 (75110) Dual line drivers

Reference

• HARDWARE MANUAL NORD 1