User`s manual

INSTALLATIONS

MB770 User’s Manual

Speaker: Pins 1 - 4

This connector provides an interface to a speaker for audio

tone generation. An 8-ohm speaker is recommended.

Pin # Signal Name

1 Speaker out

2 No connect

3 Ground

4 +5V

Power LED: Pins 11 - 15

Pin # Signal Name

11 Power LED

12 No connect

13 Ground

14 No connect

15 Ground

ATX Power ON Switch: Pins 7 and 17

This 2-pin connector is an “ATX Power Supply On/Off

Switch” on the system that connects to the power switch on

the case. When pressed, the power switch will force the

system to power on. When pressed again, it will force the

system to power off.

Reset Switch: Pins 9 and 19

The reset switch allows the user to reset the system without

turning the main power switch off and then on again.

Orientation is not required when making a connection to

this header.