lee@ricewind.comTel+86 17621197907Serving 50+ countries
RICEWIND

Huawei / SFP optical transceivers

Huawei 100G QSFP28 10km Equipment information & support

The Huawei 100G QSFP28 1310nm 10km is an enterprise-grade hot-pluggable optical transceiver engineered for high-density 100G Ethernet links over single-mode fiber (SMF) up to 10 kilometers with duplex LC connectors.

Equipment information

Brand
Huawei
Equipment model
Huawei 100G QSFP28 10km
Equipment type
SFP optical transceivers
Controller / software version
Confirm against the installed equipment
View full product specifications
Huawei 100G QSFP28 10km Official Product View 4

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

Physical Form Factor
QSFP28
Data Rate
100 Gbps
Central Wavelength
1310 (LAN-WDM 4 channels: 1295.56, 1300.05, 1304.58, 1309.14) nm
Maximum Distance
10 km
Fiber Type
Single-Mode Fiber (SMF) (SMF)
Optical Connector
Duplex LC Connector (Duplex LC)

Alarms & troubleshooting

RX_LOS (Optical RX Loss of Signal)
Port LINK/ACT LED Off, Faceplate ALM LED solid Red
Fiber link disconnected, remote transmitter failure, dirty or damaged LC connector, or optical RX power lower than sensitivity threshold (-10.6 dBm/lane)
1. Execute 'display optical-module brief' to check 4-channel RX optical power. 2. Use an optical power meter to verify incoming power is within -4.3 dBm to -10.6 dBm. 3. Clean the LC fiber end-faces and optical port with a specialized cleaner, then reseat the fiber.
TX_FAULT_BIAS_HIGH (Laser Bias Current High)
Port LINK/ACT LED slow blinking Amber (0.5Hz) or solid Amber
Aging of the QSFP28 LAN-WDM/CWDM DFB laser, internal driver IC failure, or laser end-of-life condition
1. Run 'display optical-module [interface] verbose' to read the actual Tx Bias Current values. 2. Verify if the bias current exceeds the high alarm threshold (typically >100mA). 3. If current remains above threshold and TX power degrades, hot-swap the QSFP28 transceiver during maintenance window.
MODULE_TEMP_HIGH (Optical Module Over-Temperature)
Main controller ALM LED solid Amber, Port LED remains Green
Chassis air filter clogged, equipment room HVAC failure, or switch fan failure causing insufficient heat dissipation (case temperature >75°C)
1. Run 'display optical-module verbose' to check current real-time DDM temperature. 2. Check switch fan status ('display fan') and verify data center ambient temperature is below 35°C. 3. Clean the chassis dust filters and optimize rack airflow containment to prevent irreversible laser damage.
CRC_ERR_ALM (Port CRC Error Threshold Exceeded)
Port LINK/ACT LED flashing Green rapidly with packet loss
Macro/micro-bending losses in patch cord, contaminated LC end-faces, chromatic dispersion causing eye closure, or internal CDR lock loss
1. Run 'display interface [interface]' to inspect InErrors and CRC error increment rate. 2. Inspect fiber patch cord routing; verify single-mode bend radius is strictly >30mm. 3. Test the optical link using OTDR/power meter to isolate high-loss fusion splices or replace patch cords.
OPT_TX_PWR_LOW (Optical TX Power Low)
Port LINK/ACT LED solid Green, NMS reports Yellow Warning
Internal transmitter optical path attenuation, damaged fiber launch facet, or driver voltage drop (Tx Power below -4.3 dBm/lane low threshold)
1. Run 'display optical-module verbose' to inspect the Tx Power on each of the 4 lanes. 2. Connect a calibrated optical power meter directly to the QSFP28 TX port to verify DDM calibration accuracy. 3. If measured transmit power is genuinely below -4.3 dBm/lane, replace the transceiver before service outage occurs.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

Share on-site information

  1. 01

    Identify the exact model

    Record the nameplate, system model and controller or module model.

  2. 02

    Keep the alarm details

    Record the full alarm text, indicator colour, timing and whether it persists.

  3. 03

    Describe recent changes

    Note recent replacements, software updates or configuration changes.

Record information visible in the existing interface. Electrical measurements, disassembly and replacement should follow the applicable manufacturer's manual and be performed by qualified personnel.

Your model and these details will be added to the enquiry form for you to review before sending.

Related technical articles

Browse the technical guides or send a question about this model.

View all articles

Need a replacement module or supporting equipment?

Confirm the full model, system configuration and compatibility requirements before enquiring about suitable products.

Ask about suitable products

Have a model and an on-site issue?

Share the exact model, alarm text and observed symptoms to help identify relevant information and compatibility requirements.

Request technical support