Generic Compatible QSFP56 200G ER4 Transceiver Module | 200GBASE-ER4 1310nm LWDM4 40KM PAM4 Duplex LC/UPC SMF Bulk Wholesale | HYTOPTODEVICE

Generic Compatible 200G QSFP56 ER4 Transceiver | 200GBASE-ER4 LWDM4 1310nm 40km Duplex LC/UPC SMF Optical Module HYTOPTODEVICE

Product Overview

HYTOPTODEVICE generic 200G QSFP56 ER4 transceiver follows 200GBASE-ER4 and QSFP56 MSA SFF-8636 standards. It delivers stable 200Gbps (4×53.125G PAM4) transmission up to 40km over OS2 single-mode fiber with LWDM4 1310-grid wavelengths and duplex LC/UPC connector.
This generic optic supports customized EEPROM coding for major switch vendors. HYTOPTODEVICE supplies factory bulk stock, sample testing and OEM solutions for wholesalers, distributors and system integrators building multi-vendor metro, campus and long-distance DCI networks.

Key Technical Specifications


For detailed technical specifications, please refer to the Datasheet

For detailed operation instructions, please refer to the User Guide.

Full Compatibility List & Supported Network Hardware

1. Supported Hardware & Firmware

Connectivity Solutions(Applications)

1. 200G to 200G for Switch-Switch Interconnection

3.200G Structured Cabling

The Core Feature 

FAQ

Q1: Can this generic LWDM4 200G QSFP56 ER4 transceiver run normally on QSFP28 ports after custom EEPROM programming?
A: No, this generic 200GBASE-ER4 transceiver runs at fixed 200G PAM4 rate and cannot down-operate on QSFP28 ports. Link failure will happen if inserted into QSFP28 slots, native QSFP56 ports are mandatory.

Q2: Can a generic LWDM4 ER4 transceiver pair interoperate directly with LR4 optics on the same fiber link?
A: No. ER4 and LR4 adopt different optical power budgets and link budgets. Both ends must use matching 200GBASE-ER4 LWDM4 transceivers to establish a valid stable link.

Q3: Can I order these generic ER4 modules pre-coded for different switch brands within one single bulk shipment?
A: Yes. HYTOPTODEVICE supports mixed vendor EEPROM coding in one batch. Just specify brand breakdown and quantities when ordering, perfectly suited for integrators handling multi-brand long-distance projects.

Q4: Can multimode fiber be used for this 40km 200G ER4 long-haul transmission?
A: No. This extended-reach module is built exclusively for OS2 single-mode fiber. Multimode fiber suffers heavy dispersion and signal loss, unable to support stable 40km 200G transmission and causes frequent packet loss.

Q5: What benefits does LWDM4 narrow wavelength spacing bring to 200G ER4 long-distance links?
A: LWDM4 narrow channel spacing delivers better wavelength tolerance under PAM4 modulation. It offsets wavelength drift caused by temperature variation and guarantees consistent transmission performance for long 40km fiber routes.

Q6: Is optical attenuation required when deploying this 40km ER4 module for short links below 5km?
A: Yes. This ER4 module has high launch optical power. Direct connection on short fiber spans will overload the APD receiver. Install a matched LC duplex optical attenuator on the RX port for power protection.

Q7: How will chromatic dispersion impact signal integrity on 40km LWDM4 200GBASE-ER4 links?
A: Chromatic dispersion widens optical pulses and elevates bit error rates. Our generic ER4 modules are calibrated for LWDM4 dispersion budget, maintaining low BER and reliable connectivity at full 40km OS2 fiber reach.

Q8: What damage risk will excessive received optical power bring to this generic 200G QSFP56 ER4 transceiver?
A: The internal APD receiver is sensitive to over-power input. Unattenuated short-distance testing is the main cause of receiver burnout. Reasonable power attenuation protects hardware and extends service life.

Q9: What working temperature range fits this commercial-grade generic 200G ER4 optical module?
A: This standard commercial version runs stably from 0℃ to 70℃ for indoor data center cabinets. Industrial-grade (-40℃ ~ +85℃) versions can be customized for outdoor and harsh deployment sites.

Q10: Does this generic 200GBASE-ER4 QSFP56 module comply with official IEEE and MSA industry standards?
A: Yes. It fully meets IEEE 802.3bs and QSFP56 MSA SFF-8636 specifications. CMIS DDM monitoring and mechanical dimensions follow open standards to guarantee broad host compatibility.

Q11: Can HYTOPTODEVICE supply test reports and compliance documents for bulk order customs clearance and project bidding audits?
A: Yes. All generic 200G ER4 modules pass RoHS certification. We provide complete test records and supporting paperwork to help distributors and integrators finish customs filing and tender verification.

Q12: What after-sales service can bulk buyers obtain for these programmable generic ER4 transceivers?
A: Bulk orders enjoy long-term warranty and fast replacement service. We maintain spot inventory for fast global delivery and dedicated technical support for large long-haul network projects.

Q13: What maintenance plan should we adopt for deployed 40km LWDM4 200G ER4 production links?
A: Clean LC fiber end faces before installation. For permanent production links, inspect connector loss and clean optical ports every 6–12 months to prevent signal attenuation from dust contamination.

Q14: Can this generic 200G QSFP56 ER4 LWDM4 module support links around 25–30km on OS2 fiber?
A: Yes. Rated for 40km maximum reach, this module has sufficient optical margin for 25–30km routes. It tolerates normal splice and connector loss and delivers steady 200G long-distance connectivity.

Q15: Is this generic LWDM4 ER4 transceiver suitable for telecom operator leased dark fiber long-haul circuits?
A: Yes. It conforms to MSA open specs for dark fiber deployment. Our engineering team can assist you with link budget calculation to match the loss characteristics of operator leased fiber lines.

Packaging & Custom OEM Solutions