NETGEAR CM400 User Manual

Hardware and Internet Setup
8
CM400 High Speed Cable Modem
Cable Your Cable Modem
The cable modem provides a connection between your cable Internet provider’s network and
your computer, router, or WiFi router.
Computer,
router, or
WiFi router
Cable modem
Coaxial cable to cable outlet
Ethernet
cable
Figure 6. Cabling the cable modem
 To cable your cable modem:
1. Connect a coaxial cable.
Use the coaxial cable that your cable company provides to connect the cable port on the
cable modem to
a cable wall outlet or a line splitter.
Note: If Charter is your cable Internet provider, Charter recommends
connecting your cable modem directly to a cable wall outlet. If you must
use a splitter, use a splitter that is rated at 3.5 dBmv.
Note: If Comcast Xfinity is your cable Internet provider, Comcast Xfinity
recommends connecting your cable modem directly to a cable wall
outlet.
2. Connect the power adapter provided in the package to the cable modem and plug the power
adapter into an electrical outlet.
The Power LED
lights green.
3. Turn off the computer, router, or WiFi router to which you intend to connect the cable
modem.
4. Use the Ethernet cable provided in the package to connect the Gigabit Ethernet port on the
cable modem to an Ethernet port on a computer, router
, or WiFi router
.

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