
SCANNER AND CABLE TERMINATIONS 
SCALE READY MS2221 MODELS – ADDITIONAL PINOUT CONNECTIONS 
There are four additional 10-pin modular jacks located on the bottom of the of the MS2221 StratosS models that may be used 
for an integrated scale application and the use of a remote display.    
Please keep in mind that every application is unique.  The use of these connections depends on the  
specifications of the scale’s manufacturer.  The following pinouts are for reference only.  If the scanner has 
been integrated with a scale, refer to the Scale Addendum for detailed instructions on the appropriate cable 
connections, communication specifications and calibration procedures required by the scale manufacturer and 
local Weights and Measures authorities. 
When connecting any combination of scale/external scale display to the M2221 do not exceed the 
following current restrictions:  12V @ 0.7A max. / 5V @ 0.2A max. 
Figure 40. Scale Ready Connector Layout 
Scale Display Data In Scale 
Data to Display from the Load 
Cell Interface 
Pin  Function ** 
1 SIG1 
2 SIG2 
3 SIG3 
4 SIG4 
5 SIG5 
6  SIG6 
7 SIG7 
†† 
8 SIG8 
†† 
9 SIG9 
†† 
10 SIG10 
†† 
Scale Data In 
RS232 from the Load Cell 
Interface 
Pin  Function** 
1 12V 
2 Ground 
3 5V 
4 Ground 
5 RS232 TX In 
6  RS232 RX  Out 
7  RS232 CTS In 
8  RS232 RTS Out 
9  Scale Status, TTL  
10 Scale Zero, T TL 
Scale RS232 to Host
Scale Data, Dual Cable 
Applications 
Pin  Function** 
1 Ground 
2 Scale RS232 TX Out 
3 Scale RS232 RX In 
4 Scale RS232 RTS Out 
5 Scale RS232 CTS In 
6  No Connect 
7  No Connect
8  No Connect
9  No Connect
10 Shield 
Scale to
Display
Pin  Function** 
1 SIG1 
2 SIG2 
3 SIG3 
4 SIG4 
5 SIG5 
6 SIG6 
7 SIG7 
†† 
8 SIG8 
†† 
9 SIG9 
†† 
10 SIG10 
†† 
** All signals are referenced from the StratosS scanner. 
†† The use of these pins depends upon the specifications of the scale’s manufacturer. 
Specifications are subject to change without notice. 
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