
 29
APPLICATIONS AND PROTOCOLS The model number on each scanner includes the scanner number and factory 
default communications protocol. 
SCANNER VERSION 
IDENTIFIER COMMUNICATION PROTOCOL(S) 
MS1690 11 RS485S, RS232-TXD, RXD, RTS, CTS 
MS1690 
or 
MS1691 
14  RS232  (TX, RX, RTS, CTS, DTR) 
MS1690  38  Low Speed USB 
MS1690 40 Full-speed USB 
MS1690 
or 
MS1691 
47  Keyboard Wedge, Stand-Alone Keyboard and  
RS232 Transmit/Receive 
MS1690 
or 
MS1691 
106  RS485S, Full Speed USB, and RS232 
Transmit/Receive 
S Applicable for IBM® Host applications. 
The MS1690-47 and MS1691-47 with a built-in PC Keyboard Wedge Interface is 
designed for Keyboard emulation use only.  Many RS232 configurable functions 
available in other Metrologic scanners are also available as keyboard wedge 
functions. 
The following are the most important selectable options specific to the keyboard 
wedge. 
Keyboard Type 
•  **AT (includes IBM® PS2 models 50, 55, 60, 80) 
•  IBM PS2 (includes models 30, 70, 8556) 
Keyboard Country Type 
• **USA  • Italian  • Swiss 
• Belgium  • Japanese  • Swedish/Finnish 
• French 
• German 
• Hungarian 
• Russian Cyrillic 
• Slovenian 
• Spanish 
• Turkish 
• United Kingdom 
**  For additional information on the MS1690 series default settings refer to  
pages 30-33.  For information on how to change the default settings, refer to 
help files in MetroSet2 or the MetroSelect Single-Line Configuration Guide 
(MLPN 00-02544).