User`s guide
43 
Imager and Cable Terminations 
Standard Imager Pinouts
‡
Figure 31. Back/Connector View of the MS7580 
RS232
Keyboard Wedge
Pin  Function  Pin  Function 
1 
Signal/Power Ground 
1 
Signal/Power Ground 
2 
CTS/DTR Input 
2 
Tied to Pin 3 in Cable 
3 
RS232 Receive Input 
3 
Tied to Pin 2 in Cable 
4 
No Connect 
4 
PC Data 
5 
No Connect 
5 
PC Clock 
6 
RTS Output 
6 
KB Clock 
7 
No Connect 
7 
+5VDC PC Keyboard Power 
8  RS232 Transmit Output   8  KB Data 
9  Adapter Power  9  Adapter Power 
10 
Shield Ground 
10 
Shield Ground 
SHELL 
Signal/Power Ground 
SHELL 
Signal/Power Ground 
RS485
USB
Pin 
Function 
Pin 
Function 
1 
Signal/Power Ground 
1 
Signal/Power Ground 
2 
CTS 
2 
Tied to Pin 4 in Cable 
3 
RXD 
3 
No Connect 
4 
PC Data 
4 
Tied to Pin 2 in Cable 
5 
PC Clock 
5 
No Connect 
6  KB Clock  6  USB D+ 
7  Keyboard/USB Power  7  +5VDC USB Power 
8  TXD  8  USB D- 
9  Adapter Power  9  Adapter Power 
10 
Shield Ground 
10 
Shield Ground 
SHELL  Signal/Power Ground 
SHELL  Signal/Power Ground 
RS485, RS232, and Keyboard Wedge interfaces require 12V power for operation. 
USB requires 12V power for pass-through functionality. 
  Signals on Pin 6 and 8 are TTL level RS232 output signals. 
‡  See page 41 for pinout information specific to the MS7580-124-EAS Genesis model.










