Cyclades AlterPath Manager 2500, Installation, Configuration And User Manual, Page: 316 / 368

Serial Card Configuration
284 APM Installation, Configuration, and User’s Guide
Checking Your Modems
All modems that are powered ON are included automatically in the modem
pool. To view which modems are in use or which ones are available, use SSH
to connect to the AlterPath Manager, login as “root”, and use the following
commands:
check_modem ( -d | -s ) [tty]
Where: -d disconnect
-s status
[tty] If no tty is specified, then the command applies to all modems.
To check what modems are available, type in:
check_modem -s
Example :
[root@APM root]# check_modem -s
ttyPS0 Available
ttyPS1 Available
ttyPS2 Available
ttyPS3 Available
Viewing the Latest Status of Each Modem
The modems in the modem pool are allocated in a round robin sequence to
ensure all modems are exercised to the same degree. If a modem fails to dial
out, the system will allocate the next modem in the modem pool. The “
/ var/
log/modem_status” file contains the result of the last attempted usage of a
modem. Containing the modem, date, time, and status, it is created the first
time a connection is attempted.
Example :
[root@APM root]# cat /var/log/modem_status
ttyPS0 2004/04/12 09:40:12 Dial out to acs48failed
ttyPS1 2004/04/12 09:42:35 Connected to acs32
ttyPS2 2004/04/12 09:32:23 Connected to acs32
ttyPS3 2004/04/12 09:35:00 Dial out to acs48 failed:
NO DIAL TONE