1.4.1.3 - Norsk Data hardware - NORD-10

Description

• Selector module.
• Nordcom-74 card.
• The PCB I was originally made for NPN transistors only, with ECB pin layout like TIS46. It is one position where a PNP transitor BC213L (or 2N3702) is used instead, which then needs its EC pins crossed.
• This is fixed in version II of the PCB (A), where the PCB layout is changed for that specific position.
• Unfortunately when producing more cards using the PCB version II (B), new transistors are used. The selected transistors 2N3904 and 2N3906 both have EBC pin layout, and now all the transistors must crossed their BC pins. Shit.
• Print: I   ECO: _
• Print: II   ECO: 2
• PCB size 156 x 149 mm, 2 layers
• Release date xx. xxx. xxxx

Chipset

• None

LEDs

• None

Straps

• None

Switches

• None

Connectors

• Standard NORD-10 bus