| Many T1 lines are installed without proper | | | | plugged into the telephone line and their |
| testing and configuration. It is important | | | | lights are blinking. If they are, switch them |
| for the provider and the customer to balance | | | | on and off alternately three or four times. |
| risks arising out of this situation, not only | | | | This will solve most kinds of T1 line |
| to avoid expenses on testing equipment, but | | | | problems. Once you identify the problem, the |
| also to make the T1 line error free. T1 line | | | | best way and the most popular one to test |
| testing is a slightly complicated process for | | | | signal problems on T1 cables is the Bit Error |
| a technical amateur. You need to know the | | | | Rate (BER) test. After configuring each T1 |
| technical aspects of Internet thoroughly to | | | | line for the test, you should let it run from |
| connect the T1 lines and get it working | | | | one minute to 240 hours. This will give an |
| properly. But there are a few simple | | | | error statistics base in the T1 line. |
| procedures that could be followed to test the | | | | |
| working condition of aT1 line, or to find out | | | | You can also use Cisco or other loopback |
| what has gone wrong during a breakdown. | | | | testing devices to isolate the problem of the |
| | | | T1 serial link. These can be software |
| During a break down, the first step is to | | | | loopbacks or hardware plug-in loopbacks. |
| determine whether the problem is with your PC | | | | Another way of running a BER test is to |
| or the T1 line. If you get a message saying | | | | configure a remote testing tool which will |
| the computer is using a saved version of your | | | | transfer data simultaneously with the test |
| default home page when you open your Internet | | | | pattern. Once the problem is identified using |
| explorer, there is definitely something wrong | | | | loopbacks in two different directions, they |
| with the T1 line. The next step is to check | | | | can be rectified by resetting multiplexers at |
| if the CSU/DSU, the router and hub are | | | | either ends of the T1 line. |