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