Parameters that define and apply to interfaces.
Label | Description |
interf#_begin | Marks the beginning of the parameters specific to the #th T1/E1 interface. All |
| parameters following this label apply only to this interface until interf#_end is reached. |
clock_mode | Specifies the clock source. Can be either master or slave. |
line_code | Type of coding used in the line. T1: b8zs or ami, E1: hdb3 or ami. |
frame_mode | How data is framed. T1: esf, d4 or jesf, E1: crc4, ncrc4. |
line_build_out | Attenuation on the line. Applies to T1 lines only and the possible values are 0db, |
| |
signaling_mode | Specifies the signaling mode: pri, cas or none. |
profile | ras, full, fractional or channelized. This parameter |
| Details are given later in this chapter. |
rx_sensitivity | Degree of sensitivity for reception. Values are shaul (short haul) and lhaul (long haul). |
signaling_type | Specifies the kind of signaling used when the CAS signaling mode is chosen. The |
| possibilities are r2analog, r2digital (for E1) and winks and loops (for T1). |
companding_mode | E1: alaw or none, T1: ulaw or none. |
signaling_tone | Applies only when the CAS signaling mode is chosen. The possible values are dtmf and |
| mfr1 (for T1) and dtmf, mfr2c, mfr2nc and mfr2sc (for E1). |
country | Specificies the location of the PC400 if CAS signaling mode is being used. The options |
| are usa, brazil, mexico, romania, india, and itu. |
block_collect | Valid only for CAS in Brazil. Indicates whether or not collect calls should be blocked. |
| The valid values are enabled and disabled. |
| FIG. 4.4 INTERFACE PARAMETERS |
Chapter 4 Board and System Configuration | 17 |
