Lantronix Hub manual MSS4 Connectors, RS-232 DB9 Connector, RS-485 DB9 Connectors

MSS User Guide 7: Pinouts

Figure 7-2: DB25 Serial Connector

The dual DB25 port can be used for either an RS-232 connection or an RS-485 connection. Do not attempt to connect both interfaces at the same time. The MSS-VIA drives TX on both interfaces simultaneously, but only enables RX on the selected interface.

For more information, see

RS-485Configuration.

RS-232 DB9 Connector

The MSS DB9 connector provides an RS-232 DTE serial port. The default serial port settings are 9600 baud, 8 bits, no parity, and 1 stop bit. Starting with firmware version 3.6/8, you can change these settings.

Figure 7-3: DB9 Serial Connector

MSS4 Connectors

Serial Connectors

The MSS4 has four serial ports. The MSS4 models have DB9 connectors.

The following sections show the pin connections of the MSS4 DB9 connectors, which provide dual RS-232/RS-485 serial ports.

RS-485 DB9 Connectors

The MSS4 DB9 connector provides an RS-485 serial port.

7-2