Specifications

MSM800XEV/XEL / Connectors & Jumpers
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5.1.8 X31 Keyboard PS/2/-Mouse Utility Connector
The speaker must be connected to VCC, to have a low, inactive current in the speaker.
Pin Signal Pin Signal
1 Speaker Out 2 Ground (for Speaker)
3 Reset In (active low) 4 VCC
5 Keyboard Data 6 Keyboard Clock
7 Ground 8 External Battery
9 PS/2 Mouse Clock 10 PS/2 Mouse Data
 Reset-In signal has an internal Pullup of 1k to 5Volt VCC.
The Utility connector must be wired to a standard AT-female connector:
Front side AT-Keyboard (female) Solder side AT-Keyboard (female)
Front side PS/2 (female)
Connector and Adapter
Signal Mini-DIN PS/2 (6 PC) DIN 41524 (5 PC) Remarks
Shield Shield Shield KEYBOARD
DATA 1 2
GND 3 4
VCC (+5V) 4 5
CLK 5 1
Signal Mini-DIN PS/2 (6 PC)
VCC (+5V) 4 MOUSE
DATA 1
GND 3
CLK 5