- - - For MP & FCD - - -

    This object represents 4 parameters, by 2 Octets :
    Tx D Bit Code-MSB nibble,
    Tx C Bit Code-    nibble,
    Tx B Bit Code-    nibble,
    Tx A Bit Code-LSB nibble.

    Each nibble:
 0 hex = 0000 = Not Applicable
    1 hex = 0001 = M lead
 2 hex = 0010 = M lead inverse
 3 hex = 0011 = Reverse Polarity
 4 hex = 0100 = Metering Pulse
 5 hex = 0101 = Forced 1
 6 hex = 0110 = Forced 0
 7-F hex - not used (invalid values)
    This object will be RO if prtExVc2SigProfile is NOT manual.
   
    
   - - - For WR II - - -

This object represents the following 4 parameters by 2 Octets:
1. On/Off hook signaling transmission mode from the FXS towards the T1/E1 (MSB nibble 1).
2. Default signaling bits that are not in use (nibble 2).
3. Ring Detection signaling transmission mode from the FXO towards the T1/E1(nibble 3).
4. M (Mouth) Signaling transmission mode from the E&M towards the T1/E1(LSB nibble 4). 

   Each nibble:
     ---------------------------------------------------------------------------------------
     Value          On/Off Hook       Default sig.      Ring Detect.        M (Mouth)
     ---------------------------------------------------------------------------------------
 0 hex = 0000   Not Applicable    Not Applicable.  Not Applicable       Not Applicable
 1 hex = 0001   Tx A bit                      Values 1-3 are   Tx A bit                         Tx A bit
 2 hex = 0010   Tx A bit inverse      for On/Off Hook  Tx A bit inv.            Tx A bit inv.
 3 hex = 0011   Tx B bit                      A,B,A Inv,B Inv. Tx B bit                         Tx B bit
 4 hex = 0100   Tx B bit inverse      Values 4-7 are   Tx B bit inv.            Tx B bit inv.
 5 hex = 0101   not Used-invalid      for On/Off Hook  not Used-invalid         not Used-invalid
 6 hex = 0110   not Used-invalid      A, A Inverse.    not Used-invalid         not Used-invalid
 7 hex = 0111   not Used-invalid                                       not Used-invalid         not Used-invalid      
 8 hex = 1000   not Used-invalid      Values 8-11 are  not Used-invalid         not Used-invalid
 9 hex = 1001   not Used-invalid      for On/Off Hook  not Used-invalid         not Used-invalid
     A hex = 1010   not used-invalid  B, B Inverse.    not Used-invalid         not Used-invalid
     B hex = 1011   not used-invalid  The Bits order:  not Used-invalid         not Used-invalid
 C-F hex        not used-invalid      ABCD                     not Used-invalid         not Used-invalid


 Default value: 11 11