27
Mar
13

Inside a Serial Multiplexer

Today I decided to take a look inside one of the serial multiplexers I rescued some year ago. I found that it has some nifty hardware in it including a 16Mhz Z8 microprocessor, 32K of static RAM, some serial controllers and a EPROM. I might have to hack these chips some day to make my own micro computer, I wonder if anyone has built a micro based on the Z8 before? Fortunately I can remove these chips easily as they are pretty much all socketed, so I won’t destroy the multiplexer, and after I did a bit of looking around I can buy the other components if I have to.

Anyway here’s a few photos of the multiplexer.

Tel Plex Multiplexer

Tel Plex Multiplexer

Board Overview

Board Overview

Main Processor

Main Processor

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