Telephone Networks Lab

• Acoustic & Electrical transmission & reception transducers
• Dial & Electronic keypad
• SLIC (B, O, R, S, H & T)
• PCM encoding & decoding (A-Tybe & µ-Type)
• Time slot assignment & frame insertion
• FDM & Demultiplexing
• Signal Regenerators
• International Standards
• Digital Switched matrix
• CEPT interface
• Artificial Line & noise
• Synchronization , Signalling &bit insertion
• HDB3
• E1/T1 line standard
• Line driver & Impedance matching
• Attenuation, Distortion & Noise effects
• Reception equalizer
• PRBS
• Unipolar- Bipolar Line Signal Conversion
• Timing & Exchange tones
• Fault-finding & troubleshooting
• ISDN Network Infrastructure
• PRI & BRI
• Data & Signaling channels (B1,B2 & D)
• AMI, 4B3T, 2B1Q
• ISDN & PSTN exchanges
• Digital Trunk Lines
• Connection between two exchanges
• U, T, S & R interfaces
• NT1 & NT2 termination s
• ISDN telephone
• Videophones
• Multi-function terminals
• Terminal Adapters
• TE2 equipment connection
• Point to point & point to multipoint connections
• DECT wireless terminal
• Video Conferencing
• Network protocols
• Level 1 signal analysis
• Level 2 & 3 protocol analysis