Configuring DIP switch settings and definitions 101

R2 line signaling

Brazil Config 2 R2 signals are according to CCITT standard. See Table 37 for the Brazil Config 2 R2 signal definitions.

Table 37 Brazil 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

 

 

 

 

 

 

 

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.

Table 38 shows the MFC signal configuration in the R2MFC MBM accessed through the CLI for Brazil Config 2. Table 39 on page 102 shows the MFC transmitted signal configuration in the R2MFC MBM accessed through the CLI for Brazil Config 2. These values are preconfigured by the faceplate DIP switches as shown in Figure 30 on page 92. See Chapter 7, “Command Line Interface (CLI),” on page 73 for information on the CLI.

Table 38 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_ReSend

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_CategOrAni

A_5

BW_FreeNoChrg

B_5

 

 

 

 

 

 

 

 

FW_Digit_6

I_6

FW_Categ_6

II_6

BW_Illegal

A_6

BW_B_Congest

B_6

 

 

 

 

 

 

 

 

FW_Digit_7

I_7

FW_Categ_7

II_7

BW_Prev2Digit

A_7

BW_Unlocated

B_7

 

 

 

 

 

 

 

 

R2MFC Media Bay Module Installation and Configuration Guide

Page 101
Image 101
Nortel Networks R2MFC manual Brazil Config 2 R2 A/B signals, Interpretation of received MFC signals Sheet 1