Arris D5 Edge Qam Manual Hot May 2026

Symptom: show interface qam 2/1 shows Operational State: Down. Manual Fix:

debug qam 2/1 phy

Look for MER < 30 dB or Pre-FEC BER > 1e-6. If found, adjust RF output: arris d5 edge qam manual hot

interface qam 2/1
rf-power 42 ; # increase slightly if cable plant has loss
rf-attenuation 0

| Symptom | Likely Cause | Fix | |---------|--------------|-----| | No RF output | QAM module not enabled | qam-module 1/1 admin-state up | | High BER (>1E-6) | RF level too high/low | Adjust rf-power to 37-39 dBmV | | Packet loss on input | Oversubscribed GigE | Enable Jumbo frames (9000 MTU) on switch port | | PCR jitter alarms | Uneven TS packet timing | Set pcr-source = video or enable dejitter buffer | | Module temperature | Fan failure or clogged filter | Check show environment; replace fan tray | Symptom: show interface qam 2/1 shows Operational State:

There are two ways to manually interact with the D5: the Command Line Interface (CLI) and the Web GUI (often deprecated in newer firmware). For true “hot” troubleshooting, use the CLI via SSH or Serial. Look for MER < 30 dB or Pre-FEC BER > 1e-6