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 |
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Signal | A | B |
| Signal | A | B |
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Idle | 1 | 0 |
| Idle | 1 | 0 |
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Seize | 0 | 0 |
| Seize acknowledge | 1 | 1 |
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Clear forward | 1 | 0 |
| Answer | 0 | 1 |
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| Clear back | 1 | 1 |
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| Block | 1 | 1 |
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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
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 |
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FW_Digit_1 | I_1 | FW_Categ_1 | II_1 | BW_NextDig | A_1 | BW_FreeCharge | B_1 |
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FW_Digit_2 | I_2 | FW_Categ_2 | II_2 | BW_ReSend | A_2 | BW_Busy | B_2 |
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FW_Digit_3 | I_3 | FW_Categ_3 | II_3 | BW_BCateg | A_3 | BW_B_Congest | B_3 |
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FW_Digit_4 | I_4 | FW_Categ_4 | II_4 | BW_A_Congest | A_4 | BW_B_Congest | B_4 |
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FW_Digit_5 | I_5 | FW_Categ_5 | II_5 | BW_CategOrAni | A_5 | BW_FreeNoChrg | B_5 |
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FW_Digit_6 | I_6 | FW_Categ_6 | II_6 | BW_Illegal | A_6 | BW_B_Congest | B_6 |
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FW_Digit_7 | I_7 | FW_Categ_7 | II_7 | BW_Prev2Digit | A_7 | BW_Unlocated | B_7 |
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