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Huawei / DC Power Systems (-48V)

Huawei RRU3182E 5G Remote Radio Unit Equipment information & support

The Huawei RRU3182E is an industrial-grade outdoor 5G Remote Radio Unit (RRU) engineered for macro cellular base stations. Utilizing advanced Digital Pre-Distortion (DPD) and Doherty power amplifiers, it converts baseband data received via dual eCPRI/CPRI optical links into amplified 4T4R RF signals across 1800MHz and 2100MHz multi-carrier frequencies, housed in an IP65-rated die-cast aluminum passive-cooling chassis for tower and pole deployment.

Equipment information

Brand
Huawei
Equipment model
Huawei RRU3182E 5G Remote Radio Unit
Equipment type
DC Power Systems (-48V)
Controller / software version
Confirm against the installed equipment
View full product specifications
Huawei RRU3182E 5G Outdoor Macro Remote Radio Unit (48V DC 4T4R 1800M/2100M Dual-Band IP65 Die-Cast)

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

Power Unit Type
5G Cellular Macro Base Station Outdoor Remote Radio Unit (RRU)
Operating Frequency & Bandwidth
1800MHz / 2100MHz Wideband Multi-Carrier Aggregation
Tx/Rx Channel Architecture
Multi-Channel RF Power Output
High-Speed Optical Baseband Interface
Dual CPRI / eCPRI 10G/25G High-Speed Optical Interfaces
Protection Rating
IP65 Sealed Die-Cast Aluminum Heavy-Duty Outdoor Housing
DC Power Supply Voltage
48V DC (-36V DC ~ -57V DC) Wide Telecom Voltage Range

Alarms & troubleshooting

VSWR_ALARM / RF_REFLECT_HIGH
RF Alarm Red LED solid, downlink transmit power automatically derated
Antenna feeder VSWR exceeds threshold (>1.5), connector moisture ingress, or jumper damaged
1. Measure return loss and VSWR on the feeder line with an antenna analyzer;\n2. Inspect tower-top RF connectors for water ingress or loose threads;\n3. Re-torque RF connectors to specification (25-30 N·m) and re-seal with 1+3 tape;\n4. Replace damaged coaxial jumpers or surge arrestors and re-verify VSWR.
CPRI_OPTICAL_FAIL / LINK_DOWN
OPT Port Amber LED solid, baseband digital link disconnected
SFP+ transceiver failed, fiber jumper pinched/broken, or optical Rx power below threshold (<-15dBm)
1. Measure optical Rx power at the fiber connector with an optical power meter;\n2. Clean SFP+ ferrule and fiber end-faces with a specialized optical cleaner;\n3. Verify fiber routing bend radius exceeds minimum threshold;\n4. Replace SFP+ transceiver with a genuine industrial wide-temp 10G module.
OVERTEMP_PROTECT / PA_SHUTDOWN
ALM Red LED solid, power amplifier protected and shut down
Chassis heatsink fins obstructed, or excessive solar radiation with ambient >+55°C
1. Clear debris, bird nests, and accumulated dirt from chassis heatsink fins;\n2. Verify the solar radiation shield is intact and properly secured;\n3. Adjust carrier output power or enable intelligent sleep energy-saving modes;\n4. Power amplifier automatically resumes once internal temperature normalizes.

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.

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