ZTE Switch configuration

ZTE Switch configuration 2928

This post is about how to configure ZTE switch 2928. Zte switch is used in telecom network and may be used in other network. I have used this switch to en-route all 3g sites traffic to one place and from there to layer 1 switch.
I am explaining the details of ZTE Switch configuration. This zte switch is used in command line interface.

Requirement to access ZTE Switch 2928

1. Console cable (9 pin at one end and RJ45 at other end)
2. Hyperterminal program on laptop

Open hyperterminal.
Use default setting bitrate 9600.
Press enter
It will ask for username.

ZTE switch login

Default username is admin
Default password is zhongxing.
Now you can view configuration of the switch. If you have to edit configuration then you need to enter in global configuration mode.
For this type enable then press enter.
It will again ask for password, type zhongxing as password.

Important commands of ZTE Switch 2928

1. How to set vlan
Soppose you have to add vlan 1500 to port 21. First enable vlan 1500 then tag vlan 1500 to port 21.
Syntax:  set vlan 1500 enable
set vlan 1500 add port 21 tag
2. How to show port configuration
Show port 21
This output the port 21 configuration.
3. How to know port of a particular vlan
show vlan 1500
It output both tagged and untagged ports.
4. Configuring Layer 3 Mode

In the global configuration mode execute the command config router to enter the layer 3 configuration mode. 

If you want to know any explanation or any other command ask your queries to comment section.

Share your experience of ZTE switch configuration. 

iUAT version 1.13 installation and user manual

IPSTAR modem configuration

This post is for telecom or network engineers. In this post I am providing detail for iUAT version 1.13 installation and user manual. This ipstar make vsat is used for both Bank and GSM sites. I have used this to operate GSM site. I am listing the steps of the  configuration. 

RUNNING IUAT PROGRAM FOR UT INSTALLATION

Step 1. Authentication

At first you will be asked to enter the 6 digit pin code of your location.

Selecting location a dialoge box containing " Are you using the 10m reference cable" will be displayed select No to proceed installation with actual cable. 

Step 2. specify the ODU information

Specify the antenna and ODU Information as required. 

Then click next to continue. 

Terminal connecting

Specify the user terminal IP Address and logon power then click "Next" to continue.

The iUAT process will be started within 70 seconds, It will connect to the user terminal.

Step 4. Antenna alignment 

This dialog shows the current toll signal strength (Rx level ) maximum signal strength attained, Toll Es/no, Beam ID and frequency ID. 

At this point you should try to adjust the antenna alignment (Azimuth, Elevation, Polarization) to reach the maximum Toll Es no. After this click next.

Step 5. Searching for available frequency

The iUAT will search for the best available Toll frequency. 

Step 6. Transmitted power calibration

The iUAT program will continue to step 6 to calibrate the transmitted power. 

Step 7. Polarization alignment 

At this point you need to adjust the antenna polarization to match with the transmission from satellite. After finished click Next to continue to step 8.

Step 8. UAT Quality control

At this point you will be asked to submit the test results to the UAT QC process click yes to submit the result to the QC.
Thanks for visiting. 

Ericsson WCDMA 3G winfiol command

Many users have requested to post Ericsson Node b /3G commands. Here is the list of some basic 3G /node b commands. You may find them helpful if you know them.

WCDMA / 3G/ Node B Basic commands


First of all you must know the command of how to restart Node B.

1. start acc 0 manualrestart
after executing the command system will ask
are you sure
you have to press y
then you have to key Alt+f5 to go in TTY Mode i.e. in the output window.
There are different method to restart Node B. A list will pop up in the output window to select which type of restart you want to give.
Select 0 or whatever type of restart you want.
I generally give input
0,0 and 1
It takes less time in restart.

2. st sync
This command is useful to know the status of the media. This command will output the status of the sync signal whether they are enabled or disabled. If they are enabled there is no fault of media otherwise there may be possibility of media error.

3. st ima
This command is used to know the status of the pcm if you are having pcm as a media. If your Node B has three pcm it will show the status of all the three pcm signal. If one of them is disabled then that pcm is down.

4. cvcu
This is used to know the cv on which Node B is working. If this doesnt show the latest cv then you can reload the Node B on that cv by cvset command.

5. cvset cv_name
By this command you can reload your Node B on the cv that you want to be used.

6. cvls
cvls command is used to display all the cv that have been created in the Node B. By this list of cv you can know what other users have created on the Node b.

I have tried to explain some basic ericsoon 3G/ Node B commands. If you know more commands put them in the comment section. 

If you have any query regarding ericsson Node b commands you can comment me.

ZTE NEC Minilink alarms and status

NEC IPASOLINK alarms and status

In this post I am detailing the various alarms in ZTE NEC Minilink used in telecom systems. I have this by searching a lot so I think this would help you a lot in diagnosing the minilink problem.

Minilink NEC alarms and their description

1. ODU alarm - ODU hardware failure

2. TX power - TX power is lower than 3 dB

3. RX level - the reception level is lower than -72 dBm

4. ODU/CPU cable open- this alarm occurs due to the fault in the IF Cable or in the IF connector. 

5. Module alarm - this alarm occurs when the IDU becomes faulty.

6. High BER - this alarm is generated due to the degradation of the radio signals. This alarm generally occurs in the bad weather conditions due to rain, clouds. This alarm can also be there due to the misalignment of the hop antenna.

7. LOF - Loss of frame at radio side

8. IF Cable short - IF Cable between IDU and ODU becomes short due to the water droplets.

9. RDI - RDI indication reception alarm on modem port. 

10. UAE - this alarm indicates the occurence of an unavailable state. 

11. TDM/AMR range mismatch - this alarm is generated when there is mismatch between the no of E1 used on both sides. 

12. Frame ID - this alarm occurs when Frame ID is different on the receiver side modem. 

13. ODU power supply - this alarm is generated when the power supply unit of the ODU becomes faulty. 

I have listed the main occurs which occurs during the maintenance of the minilink. If you have ever occurred a different alarm just let me know. I will explain that also. 

Share your experience too !

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