Specifications

MCD System Functionality
47
T1 interfaces (1.544 Mbits/sec) support
• ISDN PRI and QSIG links composed of 23 B-channels (bearer channels) for voice or data
plus one D-channel (data channel) for signaling
• T1/D4 links composed of 24 B-channels
•IDA-P
E1 interfaces (2.048Mbits/sec) support ISDN PRI and QSIG links composed of 30 B-channels
plus one D-channel.
T1/E1 Combo Module
The T1/E1 Combo Module combines trunk support, DSP functionality, and resiliency support
in a single module. T1/E1 trunk resiliency is designed for businesses where resilience is critical,
but where only a single digital link to the PSTN is required. If a site's primary controller fails,
this feature automatically transfers the support for the T1/E1 trunk from the T1/E1 Combo
Module in the primary controller to a T1/E1 Module in the secondary controller.
The digital trunk port can be configured as a T1 interface (1.544 Mbps) that provides 24
B-channels for T1/D4 or an E1 interface (2.0 Mbps) that provides 30 B-channels for E1. The
DSP provides resources for voice echo cancellation. Embedded PRI is available for the 3300
ICP via the T1/E1 module.
Quad Basic Rate Interface (BRI) Module
The Quad Basic Rate Interface (BRI) Module is a digital trunk interface that supports the direct
connection of BRI trunks to the controller.
The BRI module has four ports that support four digital links. Each port may be configured as
either of the following
• 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 module is supported in Europe, Middle East, Africa, and Australia.
Bay Support
The MXe III Controller can support up to seven Bay cabinets. The Bay cabinet holds up to 12
card slots: eight slots support line (ONS, OPS or DNI) cards, and four slots support the control
cards and the FIM or CIM carrier cards. The bays are connected to the MXe III using FIM or
CIM cables.
Note: SX-200 Bays are supported in North America only.