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ZTE / Optical communications and networking

ZTE 10G SFP+ 1.4km Industrial Equipment information & support

The ZTE 10G SFP+ 1310nm 1.4km Industrial (SM-1.4KM-1310-10G-I) is an industrial-hardened optical transceiver operating across an extreme -40°C to +85°C temperature range up to 1.4km over single-mode fiber with duplex LC connectors.

Equipment information

Brand
ZTE
Equipment model
ZTE 10G SFP+ 1.4km Industrial
Equipment type
Optical communications and networking
Controller / software version
Confirm against the installed equipment
View full product specifications
ZTE 10G SFP+ 1.4km Industrial Official Product View 2

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

Physical Form Factor
SFP+
Data Rate
9.8 ~ 10.3125 Gbps
Central Wavelength
1310 nm
Maximum Distance
1.4 km
Fiber Type
Single-Mode Fiber (SMF) (SMF)
Optical Connector
Duplex LC Connector

Alarms & troubleshooting

OPT_LOS (Optical RX Loss of Signal)
Port LINK/ACT LED off, System ALM LED solid red
Fiber break, dirty/damaged LC connector, excessive fiber bending loss, or remote peer transmitter powered off/disabled.
1. Query DDM via CLI/NMS to verify if RX power is below the sensitivity threshold (-14.4 dBm); 2. Inspect and clean optical LC connectors and bulkheads using a dry fiber cleaner; 3. Measure optical attenuation with an OPM/OTDR to detect fiber breaks or excessive losses; 4. Confirm remote transceiver TX is enabled and transmitting normally.
TX_BIAS_HIGH (Laser Bias Current High)
Port LINK/ACT LED slow blinking amber, System ALM LED solid amber
Semiconductor Laser Diode (LD) aging, driver compensation circuit saturation, or degradation caused by long-term high-temperature stress.
1. Execute CLI commands to read DDM Tx Bias Current and confirm if it exceeds upper threshold (typically >70 mA); 2. Check Tx output power to determine if optical emission degradation has occurred; 3. Schedule a maintenance window to hot-swap with an identical industrial-grade (-40 to 85°C) 10G SFP+ spare; 4. Verify DDM parameters and error-free link operation after module replacement.
DDM_TEMP_HIGH (SFP+ Over-Temperature Alarm)
System ALM LED solid amber, chassis fan trays running at full speed
Deteriorated cabinet/shelter ventilation, clogged dust filters, fan tray failure, or localized thermal trapping exceeding industrial rating (>85°C).
1. Collect DDM temperature telemetry to check if it exceeds the +85°C industrial limit; 2. Inspect host chassis fan status and verify air intake/exhaust paths are clear of obstructions; 3. Clean air filters and inspect cabinet climate unit (HVAC/heat exchanger) operation; 4. Redistribute high-power optics across slots or replace the module if the internal sensor is defective.
PORT_CRC_ERR (Port CRC Alignment Error Over-Threshold)
Port LINK/ACT LED alternating yellow/green flash, packet loss present
RX optical power operating near sensitivity margin, contaminated fiber end-face inducing jitter, dispersion degradation, or oxidized SFP+ edge-connector pins.
1. Inspect interface statistics (`show interface`) to verify if CRC/FCS error counters are incrementing; 2. Check DDM Rx optical power to ensure it sits comfortably within the optimal range (-1 dBm to -11 dBm); 3. Clean the LC patch cable end-faces and reseat the SFP+ module in the cage; 4. Replace the patch cord; if bit errors persist, swap the SFP+ transceiver to eliminate internal CDR faults.
I2C_COMM_FAIL (Transceiver I2C Read Failure / Unrecognized)
Port LINK/ACT LED off, Slot FAULT LED blinking
Improper transceiver seating, MOD_ABS pin failure, corrupted internal EEPROM/MCU firmware, or host I2C bus lockup.
1. Remove transceiver and inspect PCB edge fingers and cage connector for bent pins or debris; 2. Re-insert firmly and latch the bail clasp to ensure physical engagement of the MOD_ABS pin; 3. Execute CLI commands to test if vendor and serial info can be read across the I2C bus; 4. Cross-test module in an adjacent port; if still unreadable, replace the defective SFP+ module.

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

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