Nortel Networks R2MFC Manuale Utente
96
Configuring DIP switch settings and definitions
NN40010-300
R2 line signaling
2 R2 signal definitions.
Note: CD bits are not used. They are set to 01 in transmit direction, and are ignored in receive direction.
MFC register signaling
MFC signal definitions depends on the stage and the direction of the call; there are four tables of
15 signals each: the first stage uses I signals forward and A signals backward, and the second stage
uses II signals forward and B signals backward. The meaning of the signals can also be different
when being transmitted or received. Meanings of the MFC signals are configurable. MFC signal
tables are part of the country-specific parameters.
15 signals each: the first stage uses I signals forward and A signals backward, and the second stage
uses II signals forward and B signals backward. The meaning of the signals can also be different
when being transmitted or received. Meanings of the MFC signals are configurable. MFC signal
tables are part of the country-specific parameters.
shows the MFC signal configuration in the R2MFC MBM accessed through the CLI for
Mexico Config 2.
R2MFC MBM accessed through the CLI for Mexico Config 2. These values are preconfigured by
the faceplate DIP switches as shown in
the faceplate DIP switches as shown in
Table 31 Mexico Config 2 R2 A/B signals
Forward
Backward
Signal
A
B
Signal
A
B
Idle
1
0
Idle
1
0
Seize
0
0
Seize acknowledge
1
1
Clear forward
1
0
Answer
0
1
Clear back
1
1
Block
1
1
Table 32 Interpretation of received MFC signals (Sheet 1 of 2)
Meaning
Signal
Meaning
Signal
Meaning
Signal
Meaning
Signal
FW_Digit_1
I_1
FW_Categ_1
II_1
BW_NextDig
A_1
BW_FreeCharge
B_1
FW_Digit_2
I_2
FW_Categ_2
II_2
BW_PrevDigit
A_2
BW_Busy
B_2
FW_Digit_3
I_3
FW_Categ_3
II_3
BW_BCateg
A_3
BW_B_Congest
B_3
FW_Digit_4
I_4
FW_Categ_4
II_4
BW_A_Congest
A_4
BW_B_Congest
B_4
FW_Digit_5
I_5
FW_Categ_5
II_5
BW_Category
A_5
BW_Unlocated
B_5
FW_Digit_6
I_6
FW_Categ_6
II_6
BW_SpeechChrg
A_6
BW_B_Congest
B_6
FW_Digit_7
I_7
FW_Categ_7
II_7
BW_Prev2Digit
A_7
BW_B_Congest
B_7