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10
SCANNER AND CABLE TERMINATIONS 
 
Scanner Pinout Connections 
 
MS95x0-41 
RS232 and Light Pen Emulation 
Pin  Function 
1 Ground 
2  RS232 Transmit Output 
3  RS232 Receive Input 
4 RTS Output 
5 CTS Input 
6  DTR Input/LTPN Source 
7 Reserved 
8 LTPN Data 
9 +5VDC 
The MS9520 and MS9540 
scanner interfaces terminate to 
a 10-pin modular jack.  
The serial number label 
indicates the interface enabled 
when the scanner is shipped 
from the factory.   
10 Shield Ground 
 
MS95x0-47  
Keyboard Wedge and Stand-Alone Keyboard
Pin  Function 
1 Ground 
2  TTL RS232 Transmit Output 
3  TTL RS232 Receive Input 
4 PC Data 
5 PC Clock 
6 KB Clock 
7 PC +5V 
8 KB Data 
9 +5VDC 
10 Shield Ground 
 
MS95x0-11 RS485 
Pin  Function 
1 Ground 
2  RS232 Transmit Output 
3  RS232 Receive Input 
4 RTS Output  
5 CTS Input  
6 DTR Input 
7 IBM B-Transmit 
8  IBM A+ Receive 
9 +5VDC 
10 Shield Ground