This object indicates which tests are running currently on 
the selected port (initiated by user and/or by the system).
If a specific test is currently running on the port, its 
respective bit will be SET: 

  TEST                  BIT
 -----------            ---
 localLoop               1
 remoteLoop              2
 bert                    3
 plb                     4
 llb                     5
 txInband                6
 rxInband                7
 prbs                    8
 loop2-v54  (RLB)        9
 loop3-v54  (LLB)       10
 DDS DSU loop           11
 DDS CSU loop           12
 Tone injection         13
 Tx-plb                 14
 Tx-llb                 15
 DTE loop (HSSI)        16
 Local  DTE  loop (HSSI)17
 Local  Line loop (HSSI)18
 Remote Line loop (HSSI)19
 HDSL-Tx-Inband         20
 HDSL-Rx-Inband         21
         Monitor                22  (test port)
         User Line Loopback         23
         Network Line Loopback  24

 e.g : If the return value is 3 -> 0000000000000011  ->
       Bits 1 & 2 are set -> the running tests are :
                                    local-loop
                                    remote-loop  
 llb (Bit 5) - can be initiated by system only!