Arista Networks QSFP-ER-100G Compatible 100G QSFP28 ER Transceiver Module
The QSFP-ER-100G compatible module serves equipment requiring a 100G QSFP28 interface with 1310nm[Lane Center Wavelengths RangeTX 1308.09-1310.19 RX 1304.5-1317.5] optics and a 40km rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support project teams keep OEM references, delivery records and port schedules aligned.
OEM Part Number: QSFP-ER-100GHT Part Number: QSFP-ER-100G
Product Highlights
- Compatible alternative to Arista Networks QSFP-ER-100G
- 100G connectivity at 100 Gbps
- Optical wavelength: 1310nm[Lane Center Wavelengths RangeTX 1308.09-1310.19 RX 1304.5-1317.5]
- Specified reach: 40km
- Duplex LC / SMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HT Part Number | QSFP-ER-100G |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 |
| Max Data Rate | 100 Gbps |
| Wavelength | 1310nm[Lane Center Wavelengths RangeTX 1308.09-1310.19 RX 1304.5-1317.5] |
| Max Cable Distance | 40km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | PIN |
| TX Power | 1.7~7.1 dBm |
| Minimum Receiver Power | -16 dBm |
| Power Budget | 17.7dB |
| Receiver Overload | -3.4 dBm |
| Power Consumption | ＜5.5W |
| Extinction Ratio | ＞5 dB |
| DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 1x 100G-PAM4 |
| Protocols | SFF-8636 Rev 2.10a, SFF-8679 V1.8, 100G lambda MSA 100G-ER1-40, QSFP28 MSA |
Project Documentation and Traceability
Large deployments are easier to audit when the order code, optical standard and endpoint record agree. Keep the OEM reference in the compatibility document and the HT part number on the packing list. Labels and carton groups can be arranged by rack or port plan so installers need not identify modules by appearance. For this model, the principal parameters are data rate 100 Gbps, wavelength 1310nm[Lane Center Wavelengths RangeTX 1308.09-1310.19 RX 1304.5-1317.5], rated reach 40km.
Arista Networks Compatibility and Factory Testing
The module is checked for host recognition as QSFP-ER-100G, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Applications and Optical Link Design
This BiDi interface is useful where only one fiber strand is available between two sites or racks. It must be paired with the complementary wavelength direction: one end transmits on the wavelength that the other end receives. Verify the paired part number, connector polish and fiber plant before installation, and measure link loss against the specified optical budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 100G interface configuration must match the remote equipment; sharing a QSFP28 housing alone does not make two transceiver types interoperable.
This single-fiber interface must be paired with the complementary wavelength direction. One end transmits on the wavelength the other receives. Verify connector polish and measure loss over the 40km design range before service.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is 1.7~7.1 dBm; the stated optical power budget is 17.7dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Frequently Asked Questions
Is this an original Arista Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-ER-100G, not an original Arista Networks-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF. The specified maximum reach is 40km, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
Ordering Information
When ordering, specify QSFP-ER-100G, QSFP-ER-100G, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
Quality Assurance and Packaging
Each QSFP-ER-100G compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.
