User's Manual

5.8GHz PDH User’s Manual
13
where, n = number of times of bit error;
EN = rate of the equipment, E1’s rate is 2.048M；S = working time ( in seconds).
For example:
Present bit error times is 3, working time is 2 minutes and system interface is E1
 BER = (3 / (2.048 * 10
6
* 2 * 60)) = 1.22 E-8
Present bit error times is 1000000, working time is 4 minutes and system interface is E1
 BER = (566 / (2.048 * 10
6
* 4 * 60 * 60)) = 3.39 E-5
Under warning/alarming condition, the LCD displays as below:
Now press the OK button of the panel. It will display the alarm message. Press the
Right/Left button of the panel. The LCD displays the present alarm/warning message.