Specification Review
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1.25G SFP SX optical transceiver designed for short-range Gigabit Ethernet over multimode fiber (MMF). Supports transmission up to 550m at 850nm wavelength with LC duplex interface, fully compatible with GLC-SX-MMD for enterprise, data center, and campus networks.
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| Item | Specification |
|---|---|
| Product Name | 1.25G SFP SX Optical Transceiver |
| Model | DT-GLC-SX-MMD |
| Compatible Model | GLC-SX-MMD |
| Brand | Detwiler Tech / OEM / ODM |
| Product Type | Optical Transceiver Module |
| Form Factor | SFP |
| Ethernet Standard | 1000BASE-SX |
| Data Rate | 1.25Gbps |
| Fiber Type | Multimode Fiber (MMF) |
| Fiber Configuration | Duplex Fiber |
| Connector | Duplex LC |
| Maximum Transmission Distance | 550m |
| Wavelength | 850nm |
| Receiver Sensitivity | ≤ -11.1dBm |
| Operating Temperature | -20°C ~ +60°C |
| Hot Pluggable | Yes |
| DDM / DOM | Optional |
| Compliance | IEEE 802.3z, SFP MSA, RoHS |
| Packaging | Individual Box / OEM Package |
| OEM/ODM | Supported |

| Option | Available Choices |
|---|---|
| Transmission Distance | 300m, 550m, 2km, 10km, 15km |
| Fiber Type | MMF (850nm), SMF (1310/1550nm) |
| Compatibility | Cisco, Huawei, HPE, Juniper, Arista, Dell, Intel, MikroTik, Ruijie, TP-Link, Ubiquiti, OEM |
| Packaging | Individual Box, OEM Custom Packaging |
| Label Printing | Detwiler Tech / OEM / ODM |
The Detwiler Tech DT-GLC-SX-MMD is a high-performance 1.25G SFP SX optical transceiver designed for short-distance Gigabit Ethernet transmission over multimode fiber (MMF). Operating at 850nm, it supports transmission distances up to 550 meters via a duplex LC interface, making it ideal for enterprise networks, campus environments, data centers, and fiber-to-the-building (FTTB) deployments.
Fully compliant with IEEE 802.3z and SFP MSA standards, this hot-pluggable module ensures stable performance, low power consumption, and wide compatibility with major networking equipment.
Detwiler Tech provides full OEM/ODM optical transceiver solutions including customized branding, EEPROM compatibility programming for Cisco, Huawei, HPE, Juniper, Arista, Dell, Intel, MikroTik, Ruijie, TP-Link, and more. We also support private packaging, firmware customization, and bulk production for global distributors and system integrators.
Inspect the housing, contacts, termination interface and assembly details before sample approval.
A practical sourcing workflow for structured cabling products, from requirement review to repeat orders.
Align category, shielding, cable fit, contact plating and application requirements.
Confirm the agreed construction, appearance and packing before volume production.
Define inspection points and acceptance requirements for the ordered configuration.
Coordinate private labels, packaging, barcodes and approved product variants.
Share the target specification, quantity, cable construction and OEM/ODM requirements. Our team will review the critical interfaces before quotation.
DetwilerTech is a professional manufacturer and supplier of network connectivity solutions. With over 15 years of industry experience, we provide high-quality structured cabling products including RJ45 connectors, keystone jacks, patch panels, fiber optic cables, and custom OEM/ODM solutions to distributors, system integrators, and contractors worldwide.
ISO-certified production facilities with automated assembly lines ensuring consistent quality at scale
Dedicated R&D and engineering team providing technical support and custom design services
Efficient worldwide shipping with full export documentation, customs clearance support, and reliable delivery
Dedicated account managers providing personalized service from inquiry through after-sales support
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