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

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

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

Chapter 5 Supplemental Information

Factory Settings..................................................................................31

Technical Specifications.....................................................................31

Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem

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.

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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