Specifications
38
ISI4608 Quick Start Guide
Devices mapped for ISI4608 cards):
For the ISI4608 card (8 ports):
- /dev/ttyM1a to /dev/ttyM1h
should be mapped for modem ports.
LINUX -- 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' 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 -- 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.
Note: A base I/O address of 0, e.g., ISIBaseX=oxo, or omission of these
parameters for any card X, disables that particular card.
Miscellaneous:
Device files corresponding to ports on the ISI4608 cards are created in the
/dev folder. Use ttyMxy for normal ports and cumxy for corresponding
callout ports. The letter x is the card number (14), and y is the port
number, (ah) for 8-port cards.