Hisense LTA8531-PC1 Compatible 25GBASE-SR SFP28 OEM Module for 25G Aggregation Ports

EdgeOptic's LTA8531-PC1 compatible is a Hisense-coded 25GBASE-SR SFP28 transceiver built as a direct replacement for the Hisense Broadband LTA8531-PC1. It ships with Hisense-recognized EEPROM so hosts that validate against Hisense vendor identification read the module as a native optic, and the optical behavior follows the 25GBASE-SR specification at the physical layer regardless of the host's module-coding policy.

Optical behavior is 25GBASE-SR per IEEE 802.3by Clause 112 over duplex multi-mode fiber: 100m on OM4 or OM5, 70m on OM3. Line signaling rate is 25.78125 Gbd, with dual-rate support from 8.5 to 25.78 Gbps for 10GBASE-SR downshift. Transmit power is -8.4 to +2.4 dBm, receive sensitivity -10.3 dBm, link budget 5.3 dB with host RS-FEC per IEEE 802.3by Clause 108. Duplex LC/UPC, DOM per SFF-8472, 0.3W typical power. Operating case temperature is 0 to 70 degrees Celsius.

LTA8531-PC1 is a Hisense Broadband SFP28 OEM part number in the LTA product line, distinct from the Hisense LTF product line catalogued under part numbers such as LTF8505-BC+. Hisense Broadband supplies OEM-coded modules to several tier-one switch and router vendors; an LTA8531-PC1 field replacement is typically sourced when the host platform originally shipped with a Hisense-coded 25G SFP28 and the procurement team is keeping spares aligned with the original EEPROM vendor. The EdgeOptic compatible matches that original EEPROM vendor identification so the replacement drops into the same asset-management and telemetry flows.

LTA8531-PC1 sits in the SFP28 25GBASE-SR form factor and should not be confused with two adjacent Hisense part numbers. LTA8531-PC+ (plus-suffix) is a QSFP28 100G transceiver, a different form factor at 4 times the line rate; ordering confusion between LTA8531-PC1 and LTA8531-PC+ is common because of the close SKU spelling. LTA8531-PE1 is a separate SFP28 variant in the PE product line. Confirm the SKU suffix and form factor on the host or label before ordering.

Because Hisense Broadband does not publish a public host compatibility table for LTA8531-PC1 under the Hisense brand directly, platform qualification depends on the host switch or router vendor that originally installed the Hisense-coded module. For hosts that follow standard SFP28 EEPROM vendor-string validation, the EdgeOptic-coded module is recognized on default policy. For hosts operating under hardened allowlist policies, confirm the expected vendor and part-number EEPROM strings with your vendor support, and EdgeOptic can supply the exact strings for pre-deployment verification.

DOM registers (transmit power, receive power, supply voltage, laser bias, module temperature) are accessible through standard SFF-8472 reads on any EEPROM-aware host. Every unit is factory-tested to the 25GBASE-SR optical specification per IEEE 802.3by Clause 112 before dispatch.

For volume pricing, a pre-deployment sample with EEPROM strings disclosed for allowlist entry, or for clarification on LTA8531-PC1 versus LTA8531-PC+ and LTA8531-PE1 siblings, contact our sales team and we will respond within one business day.