Base - Lower Pca Board (Lpca); Comm Communication Interface Cable; Active Status Light (Asl) - Precor TRM700-16 Base Service Manual

8 Theory of Operation
Operating System Summary Information

Base - Lower PCA board (LPCA)

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The base Lower PCA (LPCA ) receives machine control commands from the console and dir-
ectly executes the commands to control the braking, lift operation, and power ON/OFF. The
LPCA also monitors error conditions and sends the detected error event code information to
the console.
The LPCA makes use of two main processors: the Master (also referred to interchangeably as
"Major") and Slave (also as "Minor").

COMM Communication Interface Cable

Active Status Light (ASL)

Active Status Light: similar to Treadmill ASL, except that operation has been changed for self-
powered machines. A separate microprocessor and software on the LPCA control the color
and flashing of the LED. A button near the light is used to wake up the entire system tem-
porarily to check its color, and to clear the status color if pressed long enough. Active Status
Light processor receives simple commands from the Console, see " Active Status Light (ASL)"
on page 147.
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Lower PCA board
Experience Series 700 Line Treadmills 160