NETGEAR Nighthawk CM2050V Bedienungsanleitung
User Manual
Nighthawk® 2.5 Gbps Ultra-High Speed
Cable Telephony Modem for Xfinity® Internet
& Voice
Model CM2050V
NETGEAR, Inc.
350 E. Plumeria DriveMay 2020
San Jose, CA 95134, USA202-12066-01
Support
Thank you for purchasing this NETGEAR product.
You can visit https://www.netgear.com/support to register your product, get help, access
the latest downloads and user manuals, and join our community. We recommend that
you use only official NETGEAR support resources.
Contact your Internet service provider for technical support.
Trademarks
©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc.
Any non-NETGEAR trademarks are used for reference purposes only.
Compliance
For regulatory compliance information, visit https://www.netgear.com/about/regulatory.
See the regulatory compliance document before connecting the power supply.
Note to CATV system Installer- This reminder is provided to call the CATV systems
installer's attention to Section 820-93 of the National Electrical Code which provide
guidelines for proper grounding and in particular, specify that Coaxial cable shield shall
connected to the grounding system of the building, as close to the point of cable entry
as practical
2
Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem
Contents
Chapter 1 Hardware Setup
Front Panel and LEDs...........................................................................6
Rear Panel..............................................................................................9
Label.....................................................................................................10
System Requirements........................................................................10
Install and Activate Your Cable Modem..........................................11
Set Up the Hardware.....................................................................11
Activate Your Internet Service With Xfinity.................................13
Perform a Speed Test....................................................................13
Connect Your Cable Modem to a Router After Installation and
Activation........................................................................................14
Chapter 2 Monitor Voice Telephone Lines
View Voice Status................................................................................16
View the MTA Call List........................................................................16
View the EMTA Event Log.................................................................17
Chapter 3 Manage Your Network
Log in to the cable modem...............................................................19
Change the admin password............................................................19
View cable modem initialization.......................................................20
View cable modem status..................................................................21
View and clear event logs..................................................................21
Specify the cable connection starting frequency...........................22
Reboot the cable modem..................................................................22
Reset the cable modem to factory default settings........................23
Use the reset button on the back panel..........................................24
Use the factory reset software button..............................................24
Chapter 4 Troubleshooting
Use the LEDs to Troubleshoot..........................................................26
Cannot log in to the cable modem..................................................27
Troubleshoot the Cable Internet Connection.................................28
Troubleshoot Voice Connectivity.....................................................28
3
1
Hardware Setup
This chapter covers the following topics:
• Front Panel and LEDs
• Rear Panel
• Label
• System Requirements
• Install and Activate Your Cable Modem
For more information about the topics covered in this manual, visit the support website
at support.netgear.com.
Note: An uninterruptible power supply (UPS) can be purchased separately for continued
service during power outages. For a list of supported UPS models, visit
netgear.com/support/product/CM2050V.
5
Front Panel and LEDs
The cable modem provides status LEDs on the front.
Figure 1. Front panel
You can use the LEDs to verify status and connections. The following table lists and
describes each LED on the cable modem.
User Manual6Hardware Setup
Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem
Table 1. LED descriptions
DescriptionIconLED
•Solid white. Power is supplied to the cable modem.
•Off. No power is supplied to the cable modem.
•Solid red. The cable modem is too warm and might
overheat. For more information about this condition, see
Use the LEDs to Troubleshoot on page 26.
Power
•Solid amber. One downstream channel is locked.
•Solid white. Two or more downstream channels are
locked.
•Blinking white. The cable modem is scanning for a
downstream channel or the cable modem is in partial
service mode.
•Off. No downstream channel is locked.
Downstream
•Solid amber. One upstream channel is locked.
•Solid white. Two or more upstream channels are locked.
•Blinking white. The cable modem is scanning for an
upstream channel.
•Off. No upstream channel is locked.
Upstream
•Solid white. The cable modem is online.
•Blinking white. The cable modem is synchronizing with
the cable provider’s cable modem termination system
(CMTS).
•Off. The cable modem is offline.
Online
•Solid white. A 2.5 Gbps connection is established.
•Blinking blue. The port is sending or receiving traffic at
2.5 Gbps.
•Solid white. A 1 Gbps connection is established.
•Blinking white. The port is sending or receiving traffic at
1 Gbps.
•Solid amber. A 100 Mbps connection is established.
•Blinking amber. The port is sending or receiving traffic
at 100 Mbps.
Multi Gig
Port
Tel 1 and 2
User Manual7Hardware Setup
Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem
Table 1. LED descriptions (Continued)
•Solid white. The Tel 1 or 2 port is online.
•Blinking white. The Tel 1 or 2 port is processing a call or
the phone is off-hook.
•Off. The Tel 1 or 2 port is not in use.
User Manual8Hardware Setup
Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem
Rear Panel
The connections and button on the rear panel are shown in the following figure.
Figure 2. Rear panel
User Manual9Hardware Setup
Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem
Viewed from top to bottom, the back panel contains the following components:
•Reset button. Pressing the Reset button resets your cable modem. If the Reset
button is pressed for at least seven seconds, the Power LED blinks white and your
cable modem returns to its factory settings.
•Ethernet port. For installation and activation, connect a computer to the Ethernet
port. After you install your cable modem and activate your Internet service, you can
disconnect your computer and connect a router to the Ethernet port.
•Tel 1 and 2 ports. Connect your phone line to the Tel 1 port.
Note: The Tel 2 port works only for a two-phone-line subscription.
•Coaxial cable port. Connect the cable port to a cable wall outlet.
•DC power connector. Connect the power adapter that came in the product package
to the DC power connector.
Label
The cable modem label shows the login information, MAC address, and serial number.
Figure 3. Cable modem label
System Requirements
You need the following to install your cable modem:
•Compatible operating system:
- Windows 10
- Windows 8
- Windows 7
User Manual10Hardware Setup
Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem
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