Lightware MX9x9DVI-Plus User Manual page 11

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3. Product Overview
Serial Port
Lightware standalone DVI-Plus matrix routers can be controlled remotely through industry standard 9-pole
D-SUB female connector located on the rear panel of the unit.
Pin nr.
1 not connected
2 TX data transmit
3 RX data receive
4 DTR (Internally connected to Pin 6)
5 GND signal ground (shield)
6 DSR (Internally connected to Pin 4)
7 RTS (Internally connected to Pin 8)
8 CTS (Internally connected to Pin 7)
9 not connected
Equipotential Connector
The purpose of additional potential equalization is to equalize potentials between
different metal parts that can be touched simultaneously or to reduce the potential
differences which can appear during operation between the bodies of medical
electrical devices and conductive parts of other objects. Ø6 mm plug made of nickel-
plated brass can be found on the left side of the unit's back for potential equalization.
RS-232 pinout
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