Speaker Connector
The Speaker connector (SPKR) is a 4-pin keyed BERG strip. It is used
to connect an external 2-inch, 8-ohm speaker to the system board to
provide sound capability. The pin assignments are defined below:
Pin
Description
1
Speaker Data Out
2
Key (No Connection)
3
Ground
4
+5 VDC
Reset Connector
The system RESET connector (RESET) is a 2-pin BERG strip. It is used
to connect the push button reset switch located on the front panel to the
system board. System reset can be done by shorting pin 1 to pin 2 with
the same effect as turning the power off and then on again.
Pin
Description
1
Reset Input
2
Ground
486MIS System Board User's Manual Page 15
