# Catalyst 1600 Device Display

You are viewing the back panel of a Catalyst 1600. The back panel displays the following components:

Supervisor card (slot 1)

The supervisor card contains two DB25 ports (serial and monitor); neither of these ports is manageable. You can click on the LCD panel to view device status.

The LED shows device health. Device health is described by one of the following states:

Green Normal

Yellow Warning or degraded

Red Critical

Token Ring cards (slots 2 and 3)

Each card can have up to four ports; each port has two connectors (only one is active). There are two LEDs per port.

The upper LED indicates port status by color. The following maps color to the port status:

Black Port is disabled.

Yellow Port is open but not forwarding frames.

Green Port is open and forwarding frames.

Red Port has failed to open or has unexpectedly closed.

When the upper LED is yellow or green, the lower LED provides the mode and ring speed of the port. The following maps the color and number to the port mode and ring speed:

Green 4 or 16 Port is configured for node mode at 4 Mbps or 16 Mbps.

Yellow 4 or 16 Port is configured for concentrator mode at 4 Mbps or 16 Mbps.

LCD panel

Reset button

This button is not active. To reset the device, choose Reset from the device pop-up menu (right-clicking over the device brings up this menu). You can also reset the Device Management window by changing the Admin Status field.