100G ZR High Power Coherent QSFP28 DCO Transceiver: 100G-Q28-DCO-ZRHP
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Same use case, different specifications

100G ZR High Power Coherent QSFP28 DCO Transceiver Overview
The 100G-Q28-DCO-ZRHP is a QSFP28 digital coherent optics module built to the IEEE 802.3-2022 100GBASE-ZR standard, with a wider launch power and link budget than the standard ZR class for longer single-mode reach. A tunable ITLA transmitter and ICR receiver cover the full C-band on ITU-T DWDM channels 13 through 61 at 50 GHz or 100 GHz spacing, and the module runs either 100G Ethernet or OTU4 on the same hardware. Built-in FEC, CDR and DDM/DOM support are standard.
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 300 km
- Tx Wavelength: DWDM 49Ch (C-band 100Ghz)
- Supported Data Rate: 103.125 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Built-in FEC
- Temperature Range: Standard 0°-70°C
100G ZR High Power Coherent DCO Pricing
100G ZR High Power Coherent QSFP28 DCO Transceiver Specification
Form Factor | QSFP28 |
Modulation | DP-QPSK (Dual Polarization Quadrature Phase Shift Keying) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 300 km |
TX Wavelength | Tunable C-Band DWDM (Ch.13-61) |
RX Wavelength | Tunable C-Band DWDM (Ch.13-61) |
Supported Data Rate | 103.125 Gbps |
Supported Ethernet Applications | 100G Ethernet (103.125 Gbps) |
Optical Transport Network (OTN) Applications | OTU4 (112 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Built-in FEC |
Transmitter Type | ITLA |
Tx Wave Bandwidth | 100GHz (0.1nm) or 50GHz (0.1nm) |
Average Launch Power (Min) Each Lane | 0 dBm |
Average Launch Power (Max) Each Lane | 4 dBm |
Receiver Type | ICR |
RX Wave Bandwidth | 100GHz (0.1nm) or 50GHz (0.1nm) |
Average Receiver Sensitivity (Min) Each Lane | -30 dBm |
Average Receiver Sensitivity (Max) Each Lane | 3 dBm |
Receiver Overload | 3 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 5.5 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, IEEE 802.3-2022 100GBASE-ZR, ITU-T G.709.2 |
100G ZR High Power Coherent QSFP28 DCO Transceiver Datasheet
v3Complete technical specifications and product details
100G ZR High Power Coherent QSFP28 DCO Transceiver Description
The 100G-Q28-DCO-ZRHP is a QSFP28 digital coherent optics module built to IEEE 802.3-2022 Clause 154 for 100GBASE-ZR, designed for extended-reach single-mode links beyond the standard ZR class. A tunable ITLA transmitter and ICR coherent receiver with DP-QPSK modulation are integrated inside the pluggable, so the host switch or router needs only a QSFP28 port with CMIS support rather than a dedicated coherent line card. The interface uses a duplex LC/UPC connector for single-mode fiber.
This high power variant widens the launch power envelope to 0 to +4 dBm per lane and extends the link budget by roughly 8 dB over the standard 100GBASE-ZR class, an engineering estimate rather than an IEEE-specified figure. In practice this supports approximately 100 km on an unamplified link and up to 300 km with inline amplification, with actual reach depending on fiber type, connector and splice loss, chromatic dispersion, and the amplifier configuration in the path. Extended-temperature, industrial-rated versions of this high power design are available as separate part numbers, as is a standard-power (non-high-power) 100GBASE-ZR module for links that do not need the extended budget; confirm which variant matches the required temperature range and reach before ordering.
The module runs a native 103.125 Gbps line rate and supports both application modes on the same hardware: 100G Ethernet at 103.125 Gbps and OTU4 at 112 Gbps per ITU-T G.709.2. Built-in forward error correction and DDM/DOM optical monitoring apply to both modes, so the same SKU serves Ethernet-only deployments and OTN-framed transport links without a separate part number.
Wavelength is tunable across the full C-band on ITU-T DWDM channels 13 through 61, 49 channels total, selectable at 50 GHz or 100 GHz spacing. One 100G-Q28-DCO-ZRHP module covers the entire grid, so channel assignment is set in software instead of requiring a fixed-wavelength part number per lambda. Average receive sensitivity spans −30 to +3 dBm per lane, with a receiver overload point of +3 dBm.
Maximum power consumption is 5.5 W from a single +3.3 V supply, within the QSFP28 form factor's thermal envelope. Check available per-port power allocation and airflow headroom on the target host before deployment at this power class. The module operates across a standard 0 to 70 C case temperature range, with storage rated −40 to 85 C and 5 to 85% relative humidity.
The module carries CE and RoHS marking and is designed to IEEE 802.3-2022 100GBASE-ZR and ITU-T G.709.2 for broad interoperability with compliant QSFP28 coherent host platforms.
The 100G-Q28-DCO-ZRHP is made to order. For project-quantity pricing, channel-tuning requirements, or extended-temperature options, contact our sales team.
Frequently Asked Questions
What is the difference between 100GBASE-ZR and 100GBASE-ZR4?
100GBASE-ZR and 100GBASE-ZR4 are separate IEEE 802.3-2022 classes and are not interchangeable. 100GBASE-ZR (Clause 154) is a coherent DP-QPSK DWDM interface over a single wavelength, rated for 80 km and beyond on single-mode fiber; the 100G-Q28-DCO-ZRHP belongs to this class. 100GBASE-ZR4 uses four parallel 25G IM-DD lanes over 80 km and does not use coherent detection. EDGE sells modules in both classes, so confirm which class the far-end optic and the link design require before ordering.
Does the host switch need its own coherent DSP to run this module?
No. The 100G-Q28-DCO-ZRHP is a Digital Coherent Optics (DCO) module, meaning the coherent DSP, tunable ITLA transmitter and ICR receiver are all integrated inside the pluggable itself. This is different from an ACO (Analog Coherent Optics) module, which relies on a coherent DSP built into the host line card. The host only needs a QSFP28 port with CMIS support and enough power and thermal headroom for the module's 5.5 W draw; no dedicated coherent line card is required.
What reach can I expect without amplification versus with it?
The 300 km maximum distance figure applies to an amplified link. On an unamplified link, EDGE's engineering estimate for this module is approximately 100 km, based on the 0 to +4 dBm launch power class and roughly an 8 dB wider link budget than the standard 100GBASE-ZR class. Actual reach on any given link depends on fiber type and age, connector and splice loss, chromatic dispersion, and whether inline amplification is present, so treat these figures as a planning estimate and verify against the specific link's optical budget calculation.
Do I need a separate module for every DWDM channel?
No. The 100G-Q28-DCO-ZRHP tunes across the full C-band on ITU-T DWDM channels 13 through 61 (49 channels), selectable at 50 GHz or 100 GHz spacing, and the channel is set in software rather than fixed at manufacture. One SKU covers the entire grid, so there is no need to stock a separate fixed-wavelength part number per channel.
Can this module run OTN (OTU4) instead of 100G Ethernet?
Yes. The module supports both application modes on the same hardware: 100G Ethernet at 103.125 Gbps and OTU4 at 112 Gbps per ITU-T G.709.2. This dual-rate support is a property of the coherent DSP inside the module and is a key difference from fixed-rate IM-DD 100G optics, which are typically Ethernet-only.
Will this module fit my chassis power and thermal budget?
The 100G-Q28-DCO-ZRHP draws up to 5.5 W from a single +3.3 V supply, higher than typical IM-DD QSFP28 optics. Before deploying at scale, check the per-port power allocation and airflow specification of the target chassis, since older QSFP28 cages and densely populated line cards were not always designed around coherent optics at this power class.