Back Panel - NETGEAR CM500 User Manual

You can use the LEDs to verify status and connections. The following table lists and
describes each LED on the front panel of the cable modem.
Table 1. LED descriptions
LED Icon
Power
Downstream
Upstream
Internet
Ethernet

Back Panel

The back panel provides the connections and button shown the following figure.
Figure 3. Cable modem back panel
CM500 High Speed Cable Modem
Description
• Green. Power is supplied to the cable modem.
• Off. No power is supplied to the cable modem.
• Red. The cable modem is too warm and might overheat. For more information
about this condition, see
• Solid amber. One downstream channel is locked.
• Blinking amber. The cable modem is scanning for a downstream channel.
• Solid green. More than one downstream channel is locked.
• Off. No downstream channel is locked.
• Solid amber. One upstream channel is locked.
• Blinking amber. The cable modem is scanning for an upstream channel.
• Solid green. More than one upstream channel is locked.
• Off. No upstream channel is locked.
• Solid green. The cable modem is online.
• Blinking green. The cable modem is synchronizing with Comcast Xfinity's cable
modem termination system (CMTS).
• Off. The cable modem is offline.
• Green. A powered-on device is connected to the Ethernet port at 1000 Mbps.
• Amber. A powered-on device is connected to the Ethernet port at 10/100 Mbps.
• Blinking green or amber. The Ethernet port is processing traffic.
• Off. No device is connected to the Ethernet port.
Power adapter input
LAN Gigabit Ethernet port
Reset button
Coaxial cable connector
Hardware and Internet Setup
Use LEDs to Troubleshoot
6
on page 22.