FAQ MODEM VDSL2 (eg: ZTE)

FAQ MODEM VDSL2   (eg: ZTE)

 

Checking All Connection Cables

Check all connection cables according to the following steps:

1 Check the VDSL2 cable connection

If the Link LED is ON normally, it indicates that the VDSL2 line is correctly

connected (Generally it takes one to two minutes to perform the VDSL2

connection) 

2 Check the computer connection

If both the computer Link LEDs are ON and the ZXDSL 931DII LAN LED

is green, it indicates that the computer and the ZXDSL 931DII equipment

are correctly connected.

3 Check the telephone cable connection

If the received telephone signals are normal and free of noise, it indicates the

telephone cable is correctly connected. Power ON/OFF status of the ZXDSL

931DII will not affect the telephone.

Hardware Description 

Front Panel LEDs 

Function       Color            Status            Definition 

Power                                  Off                  off   

DSL            Green Fast    Flash             The MODEM is trying to be in the activation status

  

WAN           On                                   The WAN port is in the communication status 

                   Off                                    No Data is detected 

Internet    Green    Flash                      Data is received or sent on the WAN 

port                        Off                       The Ethernet port is in the non-communication 

                               On                       The Ethernet port is in the communication status 

LAN1-LAN4        Green   Flash          Data is received or sent  

( LAN1-LAN4 :It is used to connect the modem to computer or 

other network devices) 

Ethernet interface     Off                 Power off or not register on the    soft-switch 

                                 On                    Registered on the soft-switch but no data going through 

VoIP1-VoIP2 Green                         Flash User data going through VoIP port 

Interface  Function 

RJ-11port：Using the telephone line to connect the modem

with the VDSL2 cable or splitter

Vo I P 1 - Vo I P 2

RJ-11port：Using the telephone line to connect the modem

with the Phone

LAN1-LAN4

RJ-45 port： It is used to connect the modem to computer or

other network devices

Reset 

During power ONperiod, hold on this button for more than 3

seconds to reset the current settings to the factory default

setting, and then the system restarts automatically 

Power Power supply port: It is connected to the power adapter

On/Off Power switch

1 All indicators are OFF when the ZXDSL 931DII equipment is powered ON.

First make sure that you have inserted the power adapter of the ZXDSL 931DII

into a working power socket and that the ZXDSL 931DII has been powered ON

(the switch button is pressed down). If the indicators are still OFF after

confirmation of the above items, may be the hardware is damaged. You may

contact local operators for maintenance. Never dismantle the equipment by

yourself. 

2. Will VDSL2 affect the telephone conversation quality? Will making phone 

calls cause a slow online rate? 

VDSL2 separates voices from data through the frequency division multiplexing

technology. Therefore, voices and data run in different paths without mutual

interference. Neither the access rate nor conversation quality will fall even if you

are in a call and online simultaneously. 

3. How to properly install telephone extensions or other devices on the VDSL2 

line?

It is recommended to connect the VDSL2 splitter to the telephone cable first and

then connect the phone sets to the splitter interfaces. Installing a telephone

directly before the splitter will lead to connection failure between the ZXDSL

931DII and the device at central office side, or an Internet access failure, or a

slow connection speed.

Connecting other electronic devices between the user end 

and splitter may affect the VDSL2 communications (since VDSL2 has a higher

requirement for the line quality) and furthermore affect the normal operation of

VDSL2. If the phone sets are required to be connected before the splitter, you

should serially connect the MicroFilter before the phone sets

(Generally, to minimize interference, only one MicroFilter can be connected before the 

splitter). 

4.  Sometimes, the VDSL2 users cannot access to the Internet normally  

                         Problem and Troubleshooting 

First check whether the ZXDSL 931DII is in the normal state (Check the 

indicators according to this user manual). If yes, the computer or application

network may be faulty.

This is unrelated with VDSL2. If the VDSL2 MODEM is 

abnormal, check the status of indicators one by one to remove the fault. 

It is suggested to check the following items before seeking help from operators:

1. The VDSL2 telephone cable connectors are proper. 

2. The VDSL2 is away from the power cable and large-power electronic

     devices. 

3. No telephone extensions and fax machines are connected between the

    VDSL2 incoming line and splitter. 

4. The splitter has been installed correctly.

5. The VDSL2 MODEM has good heat dissipation ratio.