3M SC400 Serial Resistive, Справочное руководство

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Integrating the SC400 Controller 11
3M Touch Systems Proprietary Information
Table 1 COM Cable for SC400Controller
PC Side (9-Pin D) Controller Side (8-Pin Molex)
Pin RS-232 Assigned Jumpered to: Pin Description
1 Data Carrier Detect (DCD) 4 and 6 DTR and DSR 8 DCD, DTR, DSR
2 Receive Data (RXD) 2 Transmit Data (TXD)
3 Transmit Data (TXD) 3 Receive Data (RXD)
4 Data Terminal Ready (DTR) 1 and 6 DCD and
DSR
8 DCD, DTR, DSR
5 Signal Ground 5 Power supply ground
6 Data Set Ready (DSR) 1 and 4 DCD and
DSR 8 DCD, DTR, DSR
7 Request to Send (RTS) 1 Request to Send (RTS)
8 Clear to Send (CTS) 4 Clear to Send (CTS)
9 Not Used Do not ground
Sleeve 6 DC power jack (+5 VDC)
Pin 7 Cable shield connected to
ground. DC power jack ground
Shell 7 Chassis (earth) ground
Mounting the Controller
The controller is designed for internal mounting only. Choose a convenient spot away
from high-voltage, high power cables and electronics. Use 4-40 metal screws to mount
the controller using the two diagonal mounting holes in the board. The controller should
be mounted in line with the touch screen cable exit point to minimize cable flexing. The
controller should be mounted internally behind or on the side of the display on stand offs
to allow room for the touch screen cable connector.
Ensure that the tail and controller are aligned such that the tail remains straight (90
°
), not
pulled or twisted in an odd angle from the touch screen. Good engineering design avoids
awkward electrical connections.
Not recommended:
Do not twist the tail
Recommended:
Wrap tail smoothly