User guide

Hardware Interface
The Matrix3 hardware supports multiple simultaneous control via all ports. The CommSync module (LX-COS) has
two RS-422 ports, an RS-232 port, and MIDI In and Out. The EtherTracks module (LX-ELC) has a 10/100 base T
Ethernet port. Each LX-300 can have one LX-COS and one LX-ELC.
RS-422 Ports A and B
The connector on the LX-COS module is a Female DB9.
38.4K baud, 8 data bits, No parity, 1 Stop bit.
Table 1. RS-422 Cable Pinouts
PurposePin
Shield1
-2
Shield3
TxD+4
TxD-5
Shield6
-7
RxD+8
RxD-9
RS-232 Port C
The RS-232 port is designed to use a standard Null-Modem cable. The connector on the LX-COS module is a Male
DB9.
38.4 K baud, 8 data bits, No parity, 1 stop bit.
Table 2. RS-232 Cable Pinouts
PurposePin
-1
RxD2
TxD3
-4
Ground5
-6
RTS7
CTS8
-9
An optional jumper (JP1) is available to connect pins 4 and 6.
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Hardware Interface