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

ZTE / ZTE

ZTE ZXSDR R882A S8500 Equipment information & support

Rugged 850MHz dual-carrier Remote Radio Unit delivering 2x60W output, engineered for broad coverage and rural wireless networks.

Equipment information

Brand
ZTE
Equipment model
ZTE ZXSDR R882A S8500
Equipment type
ZTE
Controller / software version
Confirm against the installed equipment
View full product specifications
ZTE ZXSDR R882A S8500 authentic hardware perspective 4

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

Operating Frequency Band
850MHz (3GPP Band 5)
RF Transmit Power
2 × 60W with digital pre-distortion
Fiber Cascade Interfaces
Dual CPRI optical daisy-chain interfaces
Ingress Protection
IP65 all-weather die-cast metallic housing
DC Operating Voltage
-48V DC nominal telecom voltage
Mounting Method
Pole, tower, and wall quick-locking mount

Alarms & troubleshooting

OPT_LOS (Optical RX Loss of Signal Alarm)
OPT LED solid red, ALM LED solid red, RUN LED normal
Broken fiber, excessive fiber bending, contaminated LC connector end-face, peer BBU/RRU laser disabled, or RX optical power below receiver sensitivity threshold
1. Inspect CPRI fiber patch cord for sharp bends, pinching, or physical damage. 2. Clean LC optical connectors and SFP transceiver optical bores with a specialized fiber cleaner. 3. Measure optical RX power using an optical power meter to confirm it is within -15 dBm to -3 dBm. 4. If received power is normal but alarm persists, reseat or replace the ZTE SFP optical transceiver.
OPT_BIAS_HIGH (Laser Bias Current High Alarm)
ALM LED blinking red (1Hz), OPT LED solid amber, RUN LED normal
Semiconductor laser aging/degradation inside the SFP, or driver IC voltage fluctuation causing Automatic Power Control (APC) bias current to exceed safety limit
1. Query the SFP DDM telemetry through LMT/EMS to read the real-time laser bias current value. 2. Check transmitter optical output power (TX Power) to evaluate degradation trends. 3. Verify device ambient operating temperature and supply voltage stability. 4. If bias current continuously exceeds high-alarm threshold (typically >80 mA), replace the SFP module proactively.
OPT_TEMP_HIGH (Optical Module Over-Temperature Alarm)
ALM LED solid amber, OPT LED blinking amber (0.5Hz), RUN LED normal
Missing solar shield, heavy dust buildup on RRU heatsink fins, degraded thermal interface pad in SFP cage, or high ambient temperature driving case temp above +85°C
1. Inspect RRU passive cooling heatsink fins and clear out accumulated dust or obstructions. 2. Verify the outdoor solar shield is properly installed to prevent direct sun exposure. 3. Check SFP DDM temperature via LMT/EMS to ensure an industrial-grade (-40°C to +85°C) SFP is deployed. 4. If ambient conditions and ventilation are normal, replace the degraded optical module.
CPRI_SYNC_FAIL (CPRI Frame Synchronization Loss & Bit Error Alarm)
OPT LED fast blinking red (2Hz), ALM LED solid red, RUN LED normal
Excessive optical dispersion/attenuation, scratched connector end-face, degraded SFP jitter performance, CPRI line-rate mismatch, or clock instability preventing hyperframe lock
1. Check CPRI link status and BER/CRC error counters on EMS; verify line rate matches (e.g., 2.4576G, 4.9152G, 9.8304G). 2. Inspect fiber end-faces with a fiber scope; replace patch cord if scratches or pits are found. 3. Measure optical attenuation with an optical loss test set/OTDR to rule out degraded splice points. 4. Replace SFP transceivers at both ends to re-establish stable CPRI framing and clock synchronization.
OPT_MOD_MISMATCH (Optical Module Type or Wavelength Mismatch Alarm)
ALM LED solid amber, OPT LED solid amber, RUN LED normal
Wavelength mismatch between ends (e.g., 1310nm vs. 1550nm/CWDM), single-mode/multi-mode transceiver mismatch, or insertion of non-certified/unsupported third-party SFP
1. Read the SFP electronic label via EMS/MML commands to verify part number, wavelength, and nominal rate. 2. Confirm the fiber patch cord type (yellow single-mode OS2 vs. orange/aqua multi-mode OM2/OM3) matches the transceiver optics. 3. Verify the peer BBU optical transceiver wavelength and link budget specifications to ensure a matched pair. 4. Replace the module with a ZTE-certified compatible optical transceiver if unsupported EEPROM is detected.

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