Initialization • 4-5 •
The H.110 Basic Rate ISDN Board
number that will be used as the default called directory
number for calls originating on the port. For ports
defined as a TE, it will be necessary to define both a
SPID and a directory number. The directory number
will be the calling number used for calls originating
from the port. If only a single SPID is required for the
interface, this should be defined for the B1 channel.
If two SPID’s are required, the voice SPID should be
defined for the B1 channel and the data SPID for the
B2 channel. Directory numbers are seven digits in
length and SPIDs are 10-14 digits.
4.3 Configuration Memory
Much of the configuration information used to initialize the board is fixed
in nature, such as the port types, SPID’s and Directory Numbers. To
simplify initialization of the board, the configuration can be stored in an
onboard EEPROM. This information can be recalled upon a restart of the
board eliminating the need to send this information to the board each time
an application runs. To control the EEPROM, three commands are
provided. These are:
SMS This command saves the current configuration including port
types, the protocol level, SPID’s and Directory Numbers.
SML This command will cause the configuration saved in the
EEPROM to be loaded into the processor memory. It is not
necessary to use this command on a restart as the information
saved in the EEPROM will automatically be loaded into the
processor memory.
SMC This command will clear the EEPROM. If this command is
used, the board will not read the EEPROM on a power up or
restart and all required configuration information will have to
be sent from the application.
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