1-4 Preliminary November 4, 1998 MAX 4000 Series Hardware Installation Guide
Getting Acquainted with the MAX
The items in your MAX package
ISDN BRI network-interface and terminal-interface cards
The ISDN BRI network-interface card and ISDN terminal-interface card each have eight ISDN
BRI ports. (Figure 1-5.) You can install a maximum of four ISDN BRI network-interface cards
in the MAX.
Figure 1-5. ISDN BRI network-interface or terminal-interface card
Note: Not all Ascend units support all Ascend slot cards. You must install a slot card in a unit
that supports that specific card. Ascend’s slot cards are only supported in Ascend devices.
Multiband inverse-multiplexing card
The Multiband inverse-multiplexing card (Figure 1-6) has two or six user-selectable RS-449,
V.35, or X.21 serial host ports with inverse-multiplexing and RS-366 capability, V.25bis, or
control-lead signaling.
Figure 1-6. Multiband inverse-multiplexing two-port card
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