PANEL5000‐A121 User Manual21Figure 2‐11: Tighten the panel mounting clamp screws.2.4 Bottom panel connectorsThe bottom panel connectors extend the capabilities of the panel monitor but are notessential for operation (except power)Figure 2‐12: Bottom connectors2.4.1 Serial port connectionThe serial device connectors are for connecting serial devices to the PANEL5000‐A121.Follow the steps below to connect a serial device to the PANEL5000‐A121 panel monitor.Step 1: Locate the DB‐9 connector. The location of the DB‐9 connector is shown in chapter2.Step 2: Insert the T‐series connector. Insert the DB‐9 connector of a serial device into theDB‐9 connector on bottom panel. Please see Figure 2‐14.