Product Overview
The QSFP28-100G-LR4 (Huawei part number 02313URT) implements 103.125 Gbit/s 100GBASE-LR4 transmission as four 25G LAN-WDM lanes at 1295, 1300, 1304 and 1309 nm multiplexed onto a duplex LC singlemode pair, with a documented 10 km target distance. Huawei specifies maximum average Tx power of +4.5 dBm and confirms the digital diagnostics (DDM) function is supported for this part.
The 10 km LR4 reach covers campus rings, metro-access spans and dark-fiber DCI between sites, using the same duplex LC cabling plant as 10G LR, which makes it the default choice wherever links exceed the 2 km CWDM4 budget. Operation is specified over a 0°C to +70°C case temperature range.
Typical applications include 100G uplinks between buildings and campuses, metro 100G rings on leased dark fiber, and inter-data-center links up to 10 km between Huawei CloudEngine-class switches.
- 100GBASE-LR4 over 4 LAN-WDM wavelengths (1295/1300/1304/1309 nm)
- 10 km reach on singlemode fiber per Huawei documentation (02313URT)
- Max Tx power +4.5 dBm; digital diagnostics (DDM) supported
- Duplex LC interface over standard duplex SMF plant
- 0°C to +70°C commercial case temperature range
| Rate | 103.125 Gbit/s (100GBASE-LR4, 4×25G LAN-WDM) |
| Interface | QSFP28, LC duplex |
| Wavelength | 1295/1300/1304/1309 nm (LAN-WDM) |
| Reach | 10 km on SMF |
| Fiber | SMF |
| DDM/DOM | Yes – digital diagnostics supported (per Huawei 02313URT doc) |
| Operating Temperature | 0°C to +70°C (case) |
| Compatibility | Huawei QSFP28 slots, 100GBASE-LR4 (IEEE 802.3ba) |
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