
APPENDIX B 
Pin Assignments for the Mil spec Connector 
Each TECH 10®scanner has a 19-pin male Mil spec connector that is on the side of the unit. To connect the 
scanner to the host device, use a communication cable with a female Mil spec connector.  The communication 
cable may include a power transformer or it may be designed to draw power directly from the host device.  This 
item can be ordered when the scanner is purchased.  
The following is a list of the pin assignments.  The pin numbers are impressed on the male Mil spec connector The 
Tech 10® scanners are manufactured by Metrologic at its Blackwood, New Jersey, U.S.A. facility. For easier 
reference, refer to Figure 5 for pin locations. 
 PIN FUNCTION 
 A  R Data 
 B  RTS Output 
 C  Signal Ground 
 D  CTS Input 
  E  R Data Return 
 F  RS-232 Output 
 G  Clock in 
  H  Clock In Return 
 J  Clock Out 
 K  Shield Ground 
 L  DTR Input 
  M  Clock Out Return 
  N  Power to Scanner & 24 VDC 
 P  Earth Ground 
 R  Power Ground 
 S  RS-232 Input 
Figure 5 
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