Metrologic Instruments MLPN 2159 - Manual (Page 20)

17
Figure 9
Appendix B
Pin Assignments
Version “1” Pin Assignments for RS-232, OCIA, and Bidirectional
RS-232
Each TECH 7 scanner has a 19-pin male Mil spec connector that is located 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 supply or it may be designed to draw power
directly from the host device. This item can be ordered when the scanner is
purchased.
The Version “1” scanner is designed to be used for RS-232, OCIA, and
RS-232 with limited receiving capabilities.
The following is a list of pin assignments. The pin numbers are impressed on
the male Mil spec connector. For easier reference, refer to Figure 9 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