|PRISMA Engineering S.r.l. is in Milan, Italy. We develop software, firmware and we supply professional consulting for embedded systems, Personal Computers (PC) and Workstations in GSM, GPRS, Avionics and Automation fields. We work with QNX, DSP, DOS, Windows, Unix operating system and we also develop device drivers for serial communication protocols. We develop simulator of the GSM and GPRS networks elements like: BSC, BTS, SGSN, GGSN, MSC, HLR, VLR, SMLC. The interfaces beween them are: Abis, A, Gb, Gi, Gn, Lb, Iub, Iu, Iur Our simulators support the following protocols: LAPD, SS7, MTP, SCCP, frame relay, ns, BSSGP, TCP/IP, ATM, AAL2, AAL5 According to the GSM and ITU specifications We support also UMTS protocols: SSCOP, SSCF-UNI, ALCAP SCTP, ITUN, AAL2, AAL5 List of keywords for search engines: GSM, QNX, DSP, GPRS, programmi, programmazione, RLC, firmware, embedded, MAC, systems, sistemi, device drivers, Gb, Milano, Milan, Italia, Abis, A, Italy, development, sviluppo, gprs, professional consulting, SS7, consulenza, Gi, Umts, Abis, Personal Computers, PC, computer, A, Workstations, Workstation, DOS, Windows, Unix, Avionics, Avionica, Atm, AAL2, Automation, Automazione|
The integrated solution for the equipment test in GSM and other telecommunications fields
The Line Server Unit Plus (LSU+) belongs to the last generation of test equipment and is intended to support both development teams and system test in GSM or other telecommunications areas. It is the product of our eight years long experience in this field.
The LSU+ allows to simulate, through a PCM interface, several Network
Element functions of GSM, GPRS, UMTS, ATM and PSTN networks to test real
The LSU+ connects to Telecom equipments by means of PCM E1/T1 interfaces
(up to 16).
The LSU+ can monitor signalling channels, simulate protocol stacks,
generate network traffic and add asynchronous events representing either
failures or abnormal conditions, both for physical interfaces and protocols.
The LSU+ supports the UDG
(User Data Generator), thanks to a proprietary protocol it can perform
functional and qualitative test of "in-band" data connections in the GPRS
The Line Server Unit Plus is a very versatile equipment that can solve several different test problems, new modules are in constant development and custom modules can be written in a short time.