Line Server Unit (LSU)

The Line Server Unit v.3 (LSUv3) belongs to the last generation of high performance test equipment and it is intended to support development teams, system test, acceptance tests and production tests in all telecommunication areas.
This equipment is also suitable as a powerful development platform in the field of telecommunications.

The LSUv3 allows to simulate, via PCM, STM-1 and Gigabit Ethernet interfaces, most of the functions of GSM, GPRS, EDGE, UMTS Network elements in order to test real pieces of equipment.

The LSUv3 is the latest and most powerful test equipment among the LSU series of systems. This new system version supports either channelised or unchannelised data flows, based on HDLC, ATM, IP and other special communication protocols used between the Network Elements (e.g. TRAU Frames, PCU Frames, V.110, IuUP etc.).

 

Line Server Unit v3 is available in 3 models:

LSUv3 STANDARD LSUv3 COMPACT MICRO LSU

 

The LSUv3 can monitor signalling or traffic channels, simulate protocol stacks, generate traffic with packet data or speech, modify data exchanged between two real Network Element, cause single shot or periodical events representing either failures or abnormal conditions, both for physical interfaces and protocols.

The modular architecture of the system offers great scalability in terms of connectivity, processing power and channel number. A set of switching devices allow to distribute flexibly the data flow to the available resources and processors.

The multi-tasking and multi-user operation based on a Posix compliant operating system allows to use multiple applications concurrently, to handle different interfaces with proper co-ordination, and/or to share the system among multiple test beds, and/or to integrate it in the corporate network.

In this way the LSUv3 fulfils for the best the needs of most test environments, from Entity Test and Integration Test to System Test and Load & Stress.

The LSUv3 already supports a growing number of protocol stacks (LAPD,SS7, SCCOP, RLC/MAC,LLC,SNDCP,FRAME RELAY,NETWORK SERVICES,BSSGP,IP,GTP, MAP), and it can be used to test all the interfaces between GSM and GPRS Network Elements (Abis, A, Gb, Lb, Gi, etc.).

The LSUv3 was designed to operate in different modes, with the addition of software modules, in order to satisfy the test requirements for different project development stages (white box, integration, load & stress), final and acceptance test activities, and for other application fields.

The implementation of the various protocol strictly adhere to the related recommendation but also provide special primitives for generating abnormal sequence of messages in order to verify the correct behaviour of equipment under test in all circumstances.

The LSU development team is available to design special testing suites for new specific requirements of the customers, or to integrate additional features (e.g. proprietary O&M procedures) in the already existing software packages.