Upgrading the MAX 3000
Converting ISDN BRI S-interface models between NT and TE equipment
MAX 3000 Installation and Basic Configuration Guide
B-9
Converting ISDN BRI S-interface models between NT
and TE equipment
You can convert your MAX 3000 BRI S-interface models from Network Terminating (NT) to
Terminal Equipment (TE), and vice versa. All BRI interfaces must be configured in the same
way, however. You cannot mix TE and NT interfaces.
To convert the interfaces, remove the system tray from the MAX cover and confirm that you
have a BRI S-interface module, then perform the conversion and put the system tray back into
the cover.
Removing the system tray from the MAX cover
To remove the system tray from the MAX cover, perform the steps outlined in “Remove the
system tray from the MAX cover” on page B-2.
Warning:
Failure to turn off the MAX power and unplug the power cord could result in
bodily injury.
Confirming you have a BRI S-interface model
Before starting the conversion procedures, verify that your MAX 3000 BRI model is
configured as a BRI S-interface model:
1
Verify that interface selection connectors P22 through P27 have jumpers connecting pins 2
and 3. Figure B-1 shows jumper connections. Figure B-2 shows the location of connectors
P22 through P27.
Figure B-1. Connector pin and jumper locations
