TR-2100 User Manual  12 
 
 
Figure 3 Internal view of TR2000 
 
The top tray houses the processor and acquisition board and the power supply, while the 
bottom tray(s) holds the input conditioning board(s).  
 
Top Tray 
On the top (or processor) tray, the middle board is the Pentium processor board and the top 
board is the acquisition board. These boards are plugged into a six slot backplane and 
secured by a bracket at the left side of each board. A card guide supports the right side of 
each board. The spare slots in the backplane are assigned for options such as a data modem 
or network board.  
 
The power supply is fitted at the rear of the tray with the power, printer, communications 
and auxiliary connectors mounted on the back flange of the tray. The main power switch is 
fitted to the front flange of the tray.