ISDN - Network And Transmission Systems.
This ISDN NETWORK TECHNOLOGY LABORATORY is
designed to study and test Integrated Service Digital Networks
(ISDN). These are digital communication networks enabling the
integrated transmission of voice, images, texts and data.
This laboratory consists of a main unit and of professional
testing instruments for planning, realizing, analyzing and using
applications on an ISDN network.
International standards, transmission techniques, use and
characteristics of the equipment, measurement techniques,
network and connection systems are examined with the use of
professional testing equipment.
TRAINING PROGRAM:
• Structure of an ISDN network
• Characteristics of the primary access (2 Mb/s)
• Characteristics of the basic access 2B+D
• Data channel of B1 and B2 at 64 Kb/s
• Service channel D at 16 Kb/s
• Electrical signals and line codes: AMI; 4B3T; 2B1Q
• ISDN switching stations
• PSTN switching stations
• Digital Trunk line
• Connection between two switching stations (via 2 units mod.
ISDN-N/EV)
• Network interfaces: U/T/S/R
• Network interfaces: a/b
• Network terminations NT1 and NT2
• Terminal equipment TE1 for S interface: ISDN telephone,
viewphone, fax, multifunction terminal
• Terminal adapters (TA)
• Terminal equipment TE2 for R interface: Personal
• Computer, modem
• Network structures on S0 bus
• Point-to-ponit and point-to-multipoint confi gurations and
links
• Link of single-number and multi-number equipment
• Programming and use of: analog, ISDN, system and DECT
• wireless terminals, Terminal Adapter and videoconference
systems
• Protocols of ISDN network
• Examination of signals at level 1
• Use of tester and of protocol analyzer
• Analysis of level-2 and level-3 protocols
ISDN TELEPHONE
TECHNICAL SPECIFICATION:
• Characteristics
- Audio Coding: ITU-T G.711 standard, A law
- Line interface: ISDN Basic access (S0)
- Protocol: EURO-ISDN
- It is powered by the ISDN line
• Main functions
- Alphanumeric display
- Privileged call
- Last number repetition
- Automatic answering service
- Telephone book
SYSTEM TERMINAL

TECHNICAL SPECIFICATION:
• Characteristics:
- Line interface: Upn
• Main functions:
- 30 Characters graphic display
- 8 fi xed function keys and 5 programmable function
keys
- Hands-free function
DECT TERMINAL

TECHNICAL SPECIFICATION:
• System Components:
- Radio Base station for the connection with ISDN
- Portable unit
• Characteristics:
- Line interface and power supply: Upn
• Main functions:
- Alfanumeric Display
- Battery charge
TERMINAL ADAPTER

TECHNICAL SPECIFICATION:
• Network interface
- line interface: ISDN Base access (S0) 2B+D
- signalling protocols: EURO-ISDN
- physical interface: RJ-45 S/T
• PC Data interface
- Programmable serial port RS232, 25 pins-V.24/V.28/V.35
- Baud rate: programmable up to 64Kb/s synchronous or
115.2Kb/s asynchronous with a B-channel
• Main functions
- Speed standard: V110, V120
- PPP protocol for Internet/Intranet
- data compression: V42bis
- AT and V25bis synchronous/asynchronous commands
- telephone book compatible with AT and V25bis commands
- Caller ID function
- automatic self-diagnosis test
- local and digital loop
- signalling LED
Power supply: 230 Vac 50 Hz single-phase - 10 VA
(Other voltage and frequency under request)
Dimensions: 190 x 44 x 266 mm
Weight: 2 kg
• System components:
- Analysis Software
- Interface Tester
• Characteristics:
- ISDN analyzer DSS1/Q.921/Q.931/1TR6
- Channel D frame information display
- Decoder of Layer 1, Layer 2 and Layer 3
- Real time analysis with display and data saving
- Saving data on hard disk and printing
- Programmable fi lters for improving presentation
- Quick-fi lter function for fast selection of the main fi lters
- S0 interface testing and monitoring in TE and NT modes
- Self-detection of protocol, access and supplied services:
point-to-point, point-to-multipoint, DSS1, 1TR6…
- State display LED for Layer 1, 2 and 3, channels B and power
supply
- Layer-1 measurements of voltage and signal
- U-interface monitoring in TE mode
- Analog interface monitoring in TE mode
- BERT (Bit Error Rate Test) measurement
- Wiring function with measurement of termination
resistances
- Telephone function with 10-number memory
- Keyboard, display
- Self-test key for enabling an automatic test sequence
- Power supply from S bus, U-interface, batteries, power
supply unit
- 1 Personal Computer including analysis software
Analysis software mod. ISDN-P/EV
Interface Tester mod. ISDN-P/EV
VIDEOCONFERENCING EQUIPMENT
TECHNICAL SPECIFICATION:
• System components:
- ISDN Gateway module with four ISDN basic access (S0)
Interfaces
- fi xed colour webcam
- headset and microphone
- software for sharing resources in Windows working
enviroment
• Characteristics:
- H.320 video communication standard
- baud rate: 64 to 512 kbps
- video resolution: VGA, QVGA, CIF, SIF, 4CIF, 4SIF, 720p
• Minimum characteristics of PC (supplied on demand):
- Pentium 4 processor 2.4 GHz (4CIF resolution or higher
resolutions need Core 2 Duo or Dual Core processors of
3 GHz or higher values, or AMD processors being equal
or more powerful than Athlon 64x2 Dual-core processor).
ISDN PROTOCOL ANALYZER

TECHNICAL SPECIFICATION:
• System components:
- Analysis Software
- Interface Tester
• Characteristics:
- ISDN analyzer DSS1/Q.921/Q.931/1TR6
- Channel D frame information display
- Decoder of Layer 1, Layer 2 and Layer 3
- Real time analysis with display and data saving
- Saving data on hard disk and printing
- Programmable fi lters for improving presentation
- Quick-fi lter function for fast selection of the main fi lters
- S0 interface testing and monitoring in TE and NT modes
- Self-detection of protocol, access and supplied services:
point-to-point, point-to-multipoint, DSS1, 1TR6…
- State display LED for Layer 1, 2 and 3, channels B and power
supply
- Layer-1 measurements of voltage and signal
- U-interface monitoring in TE mode
- Analog interface monitoring in TE mode
- BERT (Bit Error Rate Test) measurement
- Wiring function with measurement of termination
resistances
- Telephone function with 10-number memory
- Keyboard, display
- Self-test key for enabling an automatic test sequence
- Power supply from S bus, U-interface, batteries, power
supply unit
- 1 Personal Computer including analysis software