Hardware Technical Reference Manual
Quad Basic Rate Interface (BRI) Framer
Description
The Quad Basic Rate Interface (BRI) Framer MMC is a digital trunk interface that supports the
direct connection of BRI trunks to the controller. The Quad BRI Framer is not supported in North
America.
Figure 16: Quad Basic Rate Interface (BRI) Framer
The Quad BRI Framer MMC has four ports, each supporting a digital link. LEDs on the faceplate
indicate the status of each link. For a description of LED status and alarm indications, refer to
the 3300 ICP Technician’s Handbook.
Each port may be configured as either a:
• T (trunk) interface for links from a BRI Central Office
• S (subscriber) interface for connecting up to eight BRI devices to the controller
The Quad BRI Framer requires a 300 MHz or faster processor.
The Quad BRI Framer MMC is a Field Replaceable Unit (FRU) that can be installed in any of
the MMC sites in the front panel of the 3300 controller.
Note: S interfaces support only basic call features such as calling number display for
BRI devices. BRI call handling such as Hold or Transfer is not supported. BRI devices
are not line-powered from the Quad BRI Framer.