Question 1

What are the core electro-optical specifications, channel wavelength grid, and optical link budget for the ZTE 100G LWDM QSFP28 (SM-10KM-LWDM-100GE-C)?

Accepted Answer

Compliant with IEEE 802.3ba 100GBASE-LR4 and LWDM architecture, this transceiver utilizes a 4-channel cooled EML laser transmitter and a PIN photodetector array. Operating on the 800GHz LAN-WDM grid (1295.56nm, 1300.05nm, 1304.58nm, and 1309.14nm), it minimizes chromatic dispersion penalties. It features a per-lane optical launch power between -4.3 dBm and +4.5 dBm, receiver sensitivity (OMA) down to -8.6 dBm, and provides a minimum link budget of 6.3 dB over 10 km standard G.652 single-mode fiber (SMF). Powered by a nominal 3.3V supply, maximum power consumption is strictly kept below 3.5W (Class 4), and it features SFF-8636 compliant I2C digital optical monitoring (DOM/DDM).

Question 2

How does this module adapt to ZTE ZXR10 core routers, and is it interoperable/mixable with third-party standard 100G LR4 optics?

Accepted Answer

The ZTE SM-10KM-LWDM-100GE-C features tailored microcode compatible with ZTE ZXR10 9900/9900E series core routers, M6000-S multiservice gateways, and 5960 high-density datacenter switches. It supports hot-swapping and can be mixed on the same line card (e.g., 36x100GE) alongside SR4, CWDM4, or PSM4 transceivers without port-level interference, supported by robust chassis-level current-sharing protection. Optically, because its LAN-WDM channel spacing strictly matches IEEE 100GBASE-LR4, it seamlessly interconnects with third-party LR4/LWDM optics on Cisco, Huawei, or Juniper switches across G.652 fiber.

Question 3

What thermal management, reliability, and ESD/EMI protections are engineered into the SM-10KM-LWDM-100GE-C for high-density deployment?

Accepted Answer

Engineered for telecom and DC environments, the module operates across a 0°C to +70°C case temperature range. It integrates internal Thermoelectric Cooler (TEC) controls coupled with a high-thermal-conductivity metal housing to maintain strict EML laser junction temperatures and prevent wavelength drift, even inside fully loaded 1RU 36-port chassis under restrictive airflow. Its electrical interface conforms to IEEE 802.3ba Annex 83E (CAUI-4) with hardened ESD protection (4kV contact, 8kV air discharge) and an EMI-shielded zinc die-cast design meeting FCC Class B. The calculated MTBF exceeds 2,000,000 hours for non-stop carrier-grade routing.

Key specifications	Value
Physical Form Factor	QSFP28
Data Rate	100 Gbps
Central Wavelength	1310 (LAN-WDM 4 bands) nm
Maximum Distance	10 km
Fiber Type	Single-Mode Fiber (SMF) (SMF)
Optical Connector	Duplex LC Connector
Typical Power Consumption	< 3.5 W
Operating Temperature	0°C ~ +70°C

ZTE 100GE LWDM 10km QSFP28 Single-Mode Optical Transceiver Module

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

5G metropolitan transport networks

Carrier central office core routing

Hyperscale datacenter core aggregation

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