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19Chapter 4 Board and System Configuration
Parameters that define and apply to channels (time slots). These go inside interface markers.
channel_group_begin Marks the beginning of a group of channels. All parameters following this label apply
only to this channel group until channel_group_end is reached.
channels
The number of channels in this channel group is defined. The value can be first-
last or channel_number|channel_number|channel_number etc.
channel_group_end Marks the end of a group of channels. See comments for channel_group_begin above
FIG. 4.5 CHANNEL PARAMETERS
Parameters that define and apply to logical links. These go inside interface markers.
interfn_1_begin Marks the beginning of the parameters for logical link 1. PRI allows 23 (T1) or 30 (E1)
channels whereas CAS allows 24 (T1) or 30 (E1) channels.
connection_type Indicates whether channel will be used for dial-in, dial-out or both.
phone_num Phone number assigned to the channel. The maximum number of characters is 30.
dsp_profile_id Specifies the DSP profile to be used for analog calls. 5 profiles are possible.
interfn_1_end Marks the end of the parameters for logical link 1.
FIG 4.6 LOGICAL LINK PARAMETERS
The default values and sample configurations are described later in this chapter in the examples section.
The firmware should be loaded with the command:
pc400load
which will load the file in /usr/local/lib/pc400.bin.
This configuration file should be loaded into the board’s memory with the command:
pc400util -p
The options of this command are given in appendix A.
STEP THREE
Edit one of the rc files (e.g. /etc/rc.d/rc.local) to include a call to the PC400´s firmware loader and con-
figuration utility (so that the firmware and current configuration are loaded on boot):