D-Link DIS-S301SX Industrial 1000BASE-SX SFP Transceiver (550 m)
PRODUCT DESCRIPTION
D-Link DIS-S301SX 1-Port Mini-GBIC SFP to 1000BASE-SX Multi-Mode 550 m Industrial Fibre Transceiver (DIS-S301SX) - 5 Years Local Warranty
Gigabit Multi-Mode Fibre for Industrial Switches
The D-Link DIS-S301SX is a hardened 1000BASE-SX SFP transceiver for multi-mode fibre at 850 nm, reaching up to 550 m over OM1, OM2, OM3 or OM4 cable through a duplex LC connector.
Rated from -40 to 85 °C
Designed specifically for D-Link Industrial Ethernet switches, it operates and stores from -40 to 85 °C — suited to outdoor cabinets, plants and transport sites where commercial SFPs are not rated.
Hot-Pluggable and Standards-Based
IEEE 802.3z and MSA (Multi-Source Agreement) compliant, hot-pluggable for disruption-free changes.
Need help choosing? Email sales@sourceit.com.sg with your fibre type and link distance and we will match the right module.
D-Link DIS-S301SX Datasheet — Technical Specifications
General
| Product Name | D-Link DIS-S301SX 1000BASE-SX Multi-Mode 550 m Industrial SFP Transceiver |
| Part Number | DIS-S301SX |
| Series | DIS-S300 Industrial SFP Optical Transceivers |
| Local Warranty (Singapore) | 5 years, supplied by SourceIT with a GST invoice |
Optical
| Standard | IEEE 802.3z (1000BASE-SX) |
| Fibre Type | Multi-mode |
| Wavelength | 850 nm |
| Distance | 62.5/125 µm: 550 m (OM1); 50/125 µm: 550 m (OM2, OM3, OM4) |
| Connector | Duplex LC |
Electrical, Physical & Environmental
| Power Supply | 3.3 V; max input current 300 mA |
| Dimensions | 13.7 x 55.4 x 8.5 mm |
| Operating Temperature | -40 to 85 °C |
| Storage Temperature | -40 to 85 °C |
| Certifications | FCC Class B, ICES-003 Class B, CE Class B, VCCI Class B, LVD |
Compatibility & Software Support
Compatible Switches
D-Link designs the DIS-S300 series for its Industrial Ethernet switches; the DIS-300G and DIS-700G datasheets list the DIS-S301SX as an optional module, e.g. DIS-300G-12SW, DIS-300G-8PSW, DIS-300G-14PSW and DIS-700G-28XS.
Link Planning
Use a matching 1000BASE-SX module at each end of the multi-mode fibre link.
Package Contents & DIS-S300 Ordering Information
DIS-S300 Industrial SFP Models
| Model | Type | Wavelength / Reach |
| DIS-S301SX (this listing) | 1000BASE-SX MMF | 850 nm / 550 m |
| DIS-S302SX | 1000BASE-SX MMF | 1310 nm / 2 km |
| DIS-S310LX | 1000BASE-LX SMF | 1310 nm / 10 km |
| DIS-S330EX | 1000BASE-EX SMF | 1310 nm / 30 km |
| DIS-S350LHX | 1000BASE-LHX SMF | 1550 nm / 50 km |
| DIS-S380ZX | 1000BASE-ZX SMF | 1550 nm / 80 km |
Sold as a single SFP module. Fibre patch cords are not included.
Datasheet & Downloads
| D-Link datasheet | DIS-S300 Series Datasheet (PDF) |
| D-Link product page | DIS-S300 Series on dlink.com |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting DIS-S301SX.
Frequently Asked Questions — D-Link DIS-S301SX
How far can it reach?
Up to 550 m over OM1, OM2, OM3 or OM4 multi-mode fibre.
Single-mode or multi-mode?
Multi-mode, 850 nm. For single-mode choose the DIS-S310LX (10 km) or longer-reach models.
Is it hot-pluggable?
Yes, and it is IEEE 802.3z and MSA compliant.
Why an industrial SFP?
It is rated -40 to 85 °C to match D-Link's industrial switches in outdoor and plant environments.
What warranty do I get?
5 years local warranty in Singapore, supplied by SourceIT with a GST invoice.


