NETGEAR CM400 User Manual

Hardware and Internet Setup
6
CM400 High Speed Cable Modem
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 Description
Power
• Green. Power is supplied to the cable modem.
• Off. No power is supplied to the cable modem.
Downstream
• Solid green. One or more downstream channels are locked.
• Blinking green. The cable modem is scanning for a downstream channel.
• Off. No downstream channel is locked.
Upstream
• Solid green. One or more upstream channels are locked.
• Blinking green. The cable modem is scanning for an upstream channel.
• Off. No upstream channel is locked.
Internet
• Solid green. The cable modem is online.
• Blinking green. The cable modem is synchronizing with the cable provider’
s cable
modem termination system (CMTS).
• Off. The
cable modem
is offline.
Ethernet
• Green. A device is connected to the Ethernet port and powered on.
• Off. No device is connected to the Ethernet port.
Back Panel
The back panel provides the connections and button shown the following figure.
Power adapter input
LAN Gigabit Ethernet port
Coaxial cable connector
Reset button
Figure 3. Cable modem back panel
Note: The Internet LED is also referred to as the Online LED.

NETGEAR CM400 Specifications

General

Modem speed	340000 Kbit/s
Flash memory	8 MB
Product color	Black
Internal memory	64 MB
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
DC-in jack	Yes
Ethernet LAN (RJ-45) ports	1
Browser supported	Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, Google Chrome 11.0
Compatible operating systems	Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS
Cables included	LAN (RJ-45)
Internal	No
Certification	CableLabs
Compatibility	DOCSIS 3.0 / DOCSIS 2.0
Power supply type	DC
Networking features	Gigabit Ethernet

Weight and Dimensions

Weight	190 g
Dimensions (WxDxH)	96 x 30 x 147 mm