Question 1

What are the core optical/electrical specifications and link budget for the Huawei 100G QSFP28 10km (HW-OPT-100G-QSFP28-10KM)?

Accepted Answer

Compliant with IEEE 802.3ba 100GBASE-LR4, this module integrates a 4-channel LAN-WDM DFB laser array (operating at 1295.56, 1300.05, 1304.58, and 1309.14 nm) and high-sensitivity PIN photo-detectors. It features per-lane launch power from -4.3 to +4.5 dBm, receiver sensitivity better than -8.6 dBm (OMA), and an input saturation power of +4.5 dBm, delivering an optical link budget of approximately 6.3 dB for up to 10 km transmission over standard G.652 SMF. Electrically compatible with SFF-8636 and the CAUI-4 interface, it operates from a nominal +3.3V DC power rail with full-rate power consumption ≤3.5W, supporting real-time digital diagnostic monitoring (DDM/DOM) via the I2C interface.

Question 2

What is the chassis compatibility profile of this module across Huawei platforms, and what are the mixed-port deployment rules?

Accepted Answer

The HW-OPT-100G-QSFP28-10KM is natively compatible across Huawei's networking infrastructure, including CloudEngine (CE6800/CE8800/CE12800), NetEngine routers (NE40E/NE8000/NetEngine 5000E), and campus core switches (S12700E/S6730). Flashed with genuine Huawei vendor firmware and checksums, it eliminates trans-impedance or port-alarm overrides. For mixed configurations, it can coexist with 100G-SR4 or 100G-CWDM4 optics in adjacent ports on the same high-density line card. Standard 100GBASE-LR4 links do not mandate RS-FEC under IEEE 802.3ba, but when interconnecting with third-party devices, FEC settings (disabled or Clause 91 RS-FEC) must match identically at both ends to prevent framing alignment loss.

Question 3

How are the power distribution architecture, busbar wiring, and communication interfaces defined for the TP483000D system and R48100 series rectifier modules?

Accepted Answer

According to the official user manual specifications: 1. Power Distribution & Busbar Layout: The DC cabinet employs a -48V busbar and RTN+ busbar structure, supporting optional -48V top busbars, RTN+ extension busbars, and bottom cabling extension busbars. It integrates cabinet ground bars, a DC signal detection board, and dedicated distribution areas for battery and load branches; the lithium battery cabinet provides 10 x 125 A/1P DC distribution and a cabinet ground bar. 2. Monitoring & Communication Interfaces: The lithium battery cabinet integrates an SMU02C monitoring unit, parallel communication ports, and a UIM03F1 user interface module. The R48100 series rectifiers (R48100G1/R48100G5) communicate via a CAN bus interface with the SMU02C controller, supporting real-time module status monitoring, all-digital control, remote voltage/current adjustment, active load sharing, smart meter access, and hot-swappable operation.

Key specifications	Value
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)
Typical Power Consumption	< 3.5 W
Operating Temperature	0°C ~ +70°C (commercial grade)
Transmitter Power	-4.3 ~ +4.5 dBm
Receiver Sensitivity	< -8.6 dBm
Digital Diagnostic Monitoring	Supports Digital Optical Monitoring (DOM)

Huawei 100G QSFP28 1310nm 10km Single-Mode Optical Transceiver Module (4x25G LR4 Duplex LC)

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Inter-datacenter high-speed spine-leaf connections

Carrier metropolitan core networks

High-throughput enterprise cloud clusters

Frequently asked questions

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