SDI Synchronization: Bit Clock, Frame Markers and Genlock
Separate SDI bit clock recovery, line and frame positioning, and multi-camera sync, explaining 3G mapping compatibility, genlock and frame synchronizers.
Audio Fiber Quality: Sampling, Bit Depth, Noise and Distortion
Explain digital audio optical transmission using sample rate, bit depth and bitrate, distinguishing theoretical quantization from device noise and distortion.
Planning Modular TDM over IP: Cards, Channels and Capacity
Plan modular TDM over IP from service cards, channel mapping and shared IP transport, checking slots, card versions, power, clock and total capacity.
LoRa Industrial Gateways: Chirps, Airtime and Data Handover
Learn how LoRa industrial gateways detect contacts, form messages, modulate wirelessly and hand data to systems, plus how to check airtime and node concurrency.
How Fiber Carries Data: Guiding Light, Loss and Detection
Learn how fiber optic communication works, from light sources and core-cladding to photodetection, distinguishing light guiding, power loss and pulse spreading.
EPON vs GPON: Rates, Shared Bandwidth and Compatibility
Compare EPON and GPON line rates, shared scheduling and service interworking, separating ONU electrical ports from dedicated throughput and verifying by split loss.
E1 Impedance Converters: 75/120 Ohms and Correct Wiring
Explains how E1 impedance converters match 75 ohm unbalanced and 120 ohm balanced interfaces and handle bidirectional transmit and receive wiring.
USB to Serial: Enumeration, Virtual COM and UART Data
Explains virtual COM and buffering from USB data to UART characters, distinguishing RS232, RS485 and TTL, and verifying the chain.
Testing Switch Monitoring: Mirroring, Alarms and Recovery
Prove monitoring by comparing device events, observation copies and real service delivery. Compare capture sequence numbers with the actual receiver.
E1 Impedance Mismatch: Reflections, Pulses and Error Tests
Diagnose E1 mismatch by checking electrical interfaces and comparing controlled line tests. Compare the specified cable, termination and interface types.
