NT5K18AB Exchange Analogue Line Card

[Coulombic_Irrigation]

Here's an old line card I have lying around. I'm not much of a photographer, but thought I'd share some pics.
As you can see, warranty has expired.

20 (count 'em) hybrid modules.

CMOS programmable I/O chips.


L3100B1 overvoltage and overcurrent protection.
PROTECTION



Under the sticker we have...

An 8bit micro. With a socketed eeprom alongside. Under the other sticker is an SC87C51CCA44 (another 8 bit micro.) Looks like an 11MHz crystal in the middle.