This variable is a bitmap of the DS3 Line ALarms.
It is represented as sum where value 2^(N-1) is added to the
sum if alarm corresponding to bit N is exceeded.
A value of zero for this object indicates no alarms.
Itemized below are the individual bits:
BitPosition Alarm
----------- -----
1 Receiving RAI
2 Transmitting RAI
3 Receiving OOF
4 Near End Local Loopback in effect
5 Near End Remote Loopback in effect