user manual

Connectors

http://www.motorola.com/computer/literature 5-13

must not draw more than 200mA. The pin assignments are listed in the

following table.

Speaker Output Connector (J13)

The 2-pin header (J13) provides connection to an external speaker from the

CPX750 PCB Counter 2 output. The speaker driver, located on the

CPX750 PCB, consists of a 500 mA (max) current sink transistor in series

with a 33 ohm resistor. The pin assignments are listed in the following

table.

Table 5-11. +5Vdc Power Connector (J14)

Pin Signal

1 +5Vdc

2 GND

3 GND

4 No Connect

Table 5-12. Speaker Output Connector (J13)

Pin Signal

1 GND

2 SPKROC_L