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Small rectangular Cisco SFP transceiver module with LC connector and silver metal finish

Cisco Systems, Inc.

Cisco Systems, Inc. MGBSX1 SFP transceiver 1000Base-SX 850 nm 550 m

SKU CH-HE5B-Z3N1M MPN MGBSX1

Gigabit SFP transceiver for 850 nm multi-mode fibre up to 550 m with LC connector

  • Compatible BrandSR2024 - 24-Port 10/100/1000 Gigabit Switch SR224G - 24-Port
  • Device TypeTransceiver
  • Form FactorSFP
  • Network MediaMedia Type Supported: Optical Fiber Fiber Mode Supported: Mu
  • WavelengthTransmitter Spec: Power: -9.5 to -4 dBm Reciever Spec: Sensi
  • Fiber CableMulti-mode Optical Fiber

Type 1000Base-SX

  • Gigabit Ethernet speed over multi-mode fibre
  • 550 metre reach on 850 nm wavelength
  • LC duplex connector for simple patching
  • Hot-swappable SFP form factor fits Cisco switches
  • FCC, EN55022 and FDA laser safety compliant

Gigabit SFP for Multi-mode Fibre

This Cisco MGBSX1 transceiver provides a single 1000Base-SX port in the SFP form factor. It operates at an 850 nm wavelength over multi-mode optical fibre with LC connectors. The module delivers a 1 Gbps data rate for short-range network links.

Suited for Short-range Uplinks

Network administrators extending Gigabit links within a building or campus over multi-mode fibre will find this module appropriate. It is not intended for single-mode fibre runs or for distances beyond the specified 550 m reach. Buyers needing longer spans or different wavelengths should consider other transceiver types.

550 m Reach on Multi-mode Fibre

The transceiver supports a maximum distance of 550 m on 50/125 µm or 62.5/125 µm multi-mode cable. Transmitter output ranges from -9.5 to -4 dBm and receiver sensitivity is -20 to -17 dBm. This distance figure determines whether the module fits the planned link length.

Highlights

  • Gigabit Ethernet speed over multi-mode fibre
  • 550 metre reach on 850 nm wavelength
  • LC duplex connector for simple patching
  • Hot-swappable SFP form factor fits Cisco switches
  • FCC, EN55022 and FDA laser safety compliant

Specifications

BrandCisco Systems, Inc
Part NumberMGBSX1
Compatible BrandSR2024 - 24-Port 10/100/1000 Gigabit Switch
SR224G - 24-Port 10/100 + 1-Port Gigabit Switch + 1 MiniGBIC
SRW2016 - 16-Port 10/100/1000 Gigabit Switch with WebView
SRW2024 - 24-Port 10/100/1000 Gigabit Switch with WebView
SRW224 - 24-port 10/100 + 2-Port Gigabit Switch with WebView
Device TypeTransceiver
Form FactorSFP
Network MediaMedia Type Supported:
Optical Fiber
Fiber Mode Supported:
Multi-mode
Maximum Distance Supported:
0.55 km
WavelengthTransmitter Spec: Power: -9.5 to -4 dBm
Reciever Spec: Sensitivity: -20 to -17dBm
Input Power: -20 to -17 dBm
Stress Sensitivity: 50/125 um: -13.5dBm, 62.5/125 um: -12.5dBm
Wavelength: 850 nm (850nm TYP., 830-860nm) MMF
Modular Bandwidth for MMF:
62.5/125um MMF at 160 MHz/km, up to 220m
62.5/125um MMF at 200 MHz/km, up to 275m
50/125um MMF at 400 MHz/km, up to 500m
50/125um MMF at 500 MHz/km, up to 550m
Fiber CableMulti-mode Optical Fiber
ProtocolsTCP/IP
PortsTotal Number of Ports:
1
Connector Type:
LC
Interfaces/Ports Details:
1 x LC 1000Base-SX
Max Distance500m
Transfer Rate1 Gbps
FeatureAverage output power: -9.5 dBm to -4 dBm
Receiver sensitivity: -20 dBm (typ)
Receiver overload: -0 dBm
Compliance:
FCC Part 15 Class B
EN55022 Class B (CISPR 22B)
VCCI Class B
Safety:
FDA 21 CFR 1040.10 and 1040.11
EN60950, EN (IEC) 60825-1, 2
Compatibility:
SR2024 - 24-Port 10/100/1000 Gigabit Switch
SR224G - 24-Port 10/100 + 1-Port Gigabit Switch + 1 MiniGBIC
SRW2016 - 16-Port 10/100/1000 Gigabit Switch with WebView
SRW2024 - 24-Port 10/100/1000 Gigabit Switch with WebView
SRW224 - 24-port 10/100 + 2-Port Gigabit Switch with WebView
Package ContentsCisco SFP transceiver
Quick installation guide
Shipping weight0.05 kg
Package size127 × 102 × 51 mm

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Questions about this item

Should I pick the 550 m or 500 m distance rating for my link?

Both figures refer to the same 850 nm multi-mode reach; 550 m is the headline spec and 500 m appears in the detailed table, so plan for the shorter 500 m to be safe.

What does the 1 Gbps transfer rate deliver in a live switch?

It provides a full-duplex gigabit Ethernet link over multi-mode fibre with an LC connector, limited by the 500 m reach and the -9.5 to -4 dBm launch power window.

How does the SFP 1000Base-SX interface limit my cabling choices?

The LC duplex port only works with 850 nm multi-mode fibre (50/125 µm or 62.5/125 µm) and caps the link at 500 m; single-mode cable will not operate.

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