User guide
Software/Driver Installation (Linux)
MultiModemISI Hybrid Server Cards, ISIHP & ISIHI Series 77
For the 4-BRI hybrid cards (16 ports; ISIHP-4S/4U/4SD):
- /dev/ttyM1a to /dev/ttyM1h for ISDN ports. (These eight
ports correspond to the total of eight B-channels available on the four
BRI lines that can be connected to these cards.)
- /dev/ttyM1i to /dev/ttyM1p for modem ports. (For
the ISIHP-4S/4U, these eight ports accommodate the total of eight56K
modems that can operate on the eight B-channels available on the
four BRI lines that can be connected to these cards. Note, however,
that this device mapping for
ttyM1i
through
ttyM1p
does not
apply to the ISIHP-4SD. This is because the ISIHP-4SD works with
ISDN ports, or terminal adapter ports, only. The ISIHP-4SD contains
no modems in its circuitry.)
LINUX-RPM -- Dial-in configuration:
To configure a particular port for dial-in, utilities like 'mgetty' need to
be installed on the system. If, for example, the port /dev/ttyM2c needs
to be configured for a remote-access dial-in connection, an entry of the
form 'M2c:12345:respawn:/sbin/mgetty ttyM2c /dev/
ttyM2c' needs to be added in the /etc/inittab file. After you have
made the change, execute 'init q' so that the 'init' process re-reads the
inittab file and spawns the mgetty process to wait for an incoming
connection. Users can then dial in, use their user names and passwords
to log in, and access their accounts on the machine.
To disable dial-in access on a particular port, change the entry in the /
etc/inittab file to 'M2c:12345:off:/sbin/mgetty ttyM2c'or
just comment-out that entry by prefixing a '#' to the entry on the line.
LINUX-RPM -- PPP setup:
The 'PPP-HOWTO' (a document that is available as a part of the
'HOWTO' documentation on most of the distributions under /usr/doc/
HOWTO) explains in detail the procedure for configuring a Linux
machine as a PPP server. This information is also available at
http://www.interweft.com.au/other/ppp-howto/ppp-howto.html.
The documentation in the PPP-HOWTO is directly applicable to ISI
ports.