Digital Cross Connect System (DXX)

Bandwidth Manager
DXX node can be described as a digital MUX equipped with several Trunks and Access interfaces
Often referred to as a flexible multiplexer or "Flex Mux", reflecting the flexible implementation of different interface connections
Enables the provision of lower/sub rate traffic as compared to other media e.g., from Digital Exchanges we can provide only Analog voice, BRI (2B+D) i.e 128Kbps and PRI (30B+D)
Can provide a variety of data and speech bands sub and Super-rate multiplexing up to 2Mb/s
Supports all modern technologies e.g., ATM, FR & ISDN

Integrated Services

Voice
Video
Image
Data
Mixed media at a number of standard data rates

Service Features

The DXX provides a complete networking solution to the network operators with the following benefits:

Efficient utilization of existing transmission bandwidth
Powerful NMS to manage large networks
The best flexibility for networking
Manageability
Expandability
Higher service quality and hence higher customer satisfaction
DXX (Digital)
Super rate : Multiplexing of = > 64 K bits / Sec
Sub-rate : Multiplexing of < 64 K bits / Sec

Most typical DXX applications are

Data applications
Voice applications

DXX Voice Applications

Voice Applications Include:-
Telephone Line/Number Extension
Hot line
PBX extension
Voice compression
Between mobile switching centers
PSTN

Data Applications Include:-
Leased line data circuits
LAN interconnection
Point to Point data
Point to multipoint data
Paging Systems

DXX Applications in Mobile:-
Analog / Digital mobile traffic between mobile exchanges
Voice compression
Data traffic
LAN interconnection
Bandwidth optimization