Details

Extron FOX3 SR 321 SM (part number 60-1777-22) — a singlemode fiber receiver built for mathematically lossless 4K/60 DisplayPort delivery over long campus runs.

Paired with a FOX3 T 321 transmitter, this receiver recovers video, USB, audio, and control data carried over singlemode glass and outputs scaled DisplayPort at up to 4096x2160 at 60 Hz with 4:4:4 color. Riding on 1310 nm singlemode fiber, reach extends to 20 km, well beyond what copper KVM extenders or multimode links can cover, while the lossless single-fiber mode keeps every pixel of a CAD, GIS, or medical workstation feed intact.

Key Capabilities

Lossless 4096x2160 at 60 Hz, 4:4:4 DisplayPort output over one singlemode fiber
Singlemode fiber reach to 20 km (12.4 miles) over LC connectors
USB 2.0 extension to 480 Mbps plus dedicated USB HID ports for KVM peripherals
RS-232 and IR insertion for remote source and display control
Analog stereo audio de-embed with a local audio return channel
Front-panel USB configuration port and rear RJ-45 for Ethernet monitoring

Where It Is Used

Fits campus-scale DisplayPort workstation extension — university labs, government and military sites, and command centers where a source and display sit buildings apart and the fiber's immunity to interference matters as much as reach.

Specifications at a Glance

Video: DisplayPort 1.2a, up to 4096x2160 at 60 Hz, 4:4:4, 21.6 Gbps
Fiber: singlemode, 20 km max reach, 2 or 4 LC connectors, 1310 nm
USB: 1 USB 2.0 port (500 mA) plus 2-port USB HID
Enclosure: half-rack metal, 1.7"H x 8.75"W x 8.5"D, 2.4 lbs
Power: internal 100-240 VAC supply, 29.1 W consumption

Also referenced as Extron FOX3SR321SM, FOX3-SR-321-SM, part number 60177722.

Specifications

Part Number: 60-1777-22

Manufacturer: Extron

Model: FOX3 SR 321 SM

Condition: New

Video Output Signal: 1 single-link DisplayPort, female DisplayPort Type A

Max. Video Data Rate: 21.6 Gbps (5.4 Gbps per lane)

Max. Pixel Clock: 594 MHz

Max. Resolution: 4096x2160 at 60 Hz, 4:4:4 chroma, up to 10-bit color (lossless over 1 fiber)

Scaled Output Resolutions: 480p through 4096x2160, plus 1 custom mode and bypass

Standards: DisplayPort 1.2a

Audio Output: 1 digital (2-CH PCM de-embedded from DisplayPort) or 1 analog stereo, balanced/unbalanced

Audio Output Connectors: 1 DisplayPort (shared with video), 1 3.5 mm captive screw, 5-pole

Frequency Response: 20 Hz to 20 kHz, ±0.5 dB

S/N Ratio: >90 dB at maximum output, unweighted

THD + Noise: <0.1% at 20 Hz to 20 kHz, nominal level

Audio Output Impedance: 50 ohms unbalanced, 100 ohms balanced

Audio Return Input: 1 analog stereo, balanced/unbalanced, 3.5 mm captive screw, 5-pole

Audio Return Input Impedance: ≥10k ohms unbalanced, ≥20k ohms balanced

Audio Return Nominal Level: +4 dBu (1.23 Vrms), -10 dBV (316 mVrms)

Audio Return Maximum Level: +21 dBu balanced, +15 dBu unbalanced

Fiber Connectors: 2 or 4 LC (1 or 2 SFP modules)

Operating Distance (Singlemode): 20 km (12.4 miles)

Nominal Peak Wavelength: 1310 nm (singlemode)

Fiber Data Rate: 10.0 Gbps (1 fiber) or 20.0 Gbps (2 fibers)

Transmission Power (Singlemode): -5.2 dBm, typical

Receiver Sensitivity (Singlemode): -12.6 dBm, typical

Optical Loss Budget (Singlemode): +7.4 dB, maximum

USB Configuration Port: 1 front-panel mini USB B, Ethernet over USB, USB 2.0 low speed

USB Host Ports: 3 USB Type A, female (2 USB HID + 1 USB 2.0), 0 built-in hubs

Available USB Power: USB 2.0 port 500 mA; USB HID ports 100 mA

USB Extension Standards: USB 2.0, USB 1.1, USB 1.0 compatible, up to 480 Mbps

Serial Host Control: 1 RS-232, 3.5 mm captive screw, 5-pole, 9600 baud, 8 data bits, 1 stop bit, no parity

Serial Pass-Through: 1 RS-232, 3.5 mm captive screw, 5-pole, 9600 to 115,200 baud

IR Control Port: 3.5 mm captive screw, 5-pole (shared with RS-232 pass-through), 30-56 kHz modulated

Ethernet Control: 1 RJ-45, 10/100/1000Base-T, default IP 192.168.254.254

Program Control: Extron Product Configuration Software, Extron SIS

Power Supply: Internal, 100-240 VAC, 50-60 Hz

Power Consumption: 29.1 watts

Thermal Dissipation: 75.7 BTU/hr

Ambient Temperature/Humidity: Storage -40 to +158°F (-40 to +70°C), 10-90% noncondensing; Operating +32 to +122°F (0 to +50°C), 10-90% noncondensing

Cooling: Convection

Enclosure: Metal, 1.7" H x 8.75" W x 8.5" D, half rack wide (depth excludes connectors)

Mounting: Rack mount with optional shelf; furniture mount with optional under-desk kit

Product Weight: 2.4 lbs (1.1 kg)

Regulatory Compliance: CE, c-UL, C-tick, FCC Class A, ICES, UL, VCCI; complies with RoHS and WEEE

Product Warranty: 3 years parts and labor

Everlast Power Supply Warranty: 7 years parts and labor

Diagram

Resources

Brochure | FOX3 SR 321 SM 60-1777-22 | FOX3 DisplayPort Extenders

Brochure | FOX3 SR 321 SM 60-1777-22 | Extender DisplayPort FOX3

Brochure | FOX3 SR 321 SM 60-1777-22 | Extendeurs DisplayPort FOX3

Brochure | FOX3 SR 321 SM 60-1777-22 | Extensores FOX3 DisplayPort

Brochure | FOX3 SR 321 SM 60-1777-22 | FOX3 321 和 331 DisplayPort 光纤延长器

Brochure | FOX3 SR 321 SM 60-1777-22 | FOX3-DisplayPort-Extender

Manual | FOX3 SR 321 SM 60-1777-22 | FOX3 Matrix Series Network Ports, Protocols, and Licenses Guide

Manual | FOX3 SR 321 SM 60-1777-22 | FOX3 SR 321/331/211 Setup Guide

Manual | FOX3 SR 321 SM 60-1777-22 | FOX3 SR 321/331/211 User Guide

Specifications | FOX3 SR 321 SM 60-1777-22 | FOX3 SR 321/331

Panel Drawing | FOX3 SR 321 SM 60-1777-22 | FOX3 SR 321

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Extron FOX3 SR 321 SM Fiber Optic Scaling Receiver 60-1777-22

Name: Extron FOX3 SR 321 SM Fiber Optic Scaling Receiver 60-1777-22
Brand: Extron
SKU: EXTRON-FOX3SR321SM-60177722
Availability: InStock

Manufacturer: Extron

Type: Fiber Optics

Extron FOX3 SR 321 SM Fiber Optic Scaling Receiver

• Lossless 4K/60 DisplayPort output at 4:4:4 chroma over one fiber
• Singlemode fiber reach to 20 km (12.4 miles) over LC connectors
• USB 2.0 extension to 480 Mbps plus 2-port USB HID for KVM
• RS-232 and IR insertion keep sources and displays controllable at distance
• Analog stereo audio de-embed with a local return channel
• Half-rack 1U enclosure draws 29.1 W, weighs 2.4 lbs
• Ethernet monitoring via RJ-45 for remote system management

Need service or repair? No matter the age, brand, or manufacturer Ampronix can repair it! Free, no charge for initial evaluations!

SKU: EXTRON-FOX3SR321SM-60177722

Details

Extron FOX3 SR 321 SM (part number 60-1777-22) — a singlemode fiber receiver built for mathematically lossless 4K/60 DisplayPort delivery over long campus runs.

Key Capabilities

Lossless 4096x2160 at 60 Hz, 4:4:4 DisplayPort output over one singlemode fiber
Singlemode fiber reach to 20 km (12.4 miles) over LC connectors
USB 2.0 extension to 480 Mbps plus dedicated USB HID ports for KVM peripherals
RS-232 and IR insertion for remote source and display control
Analog stereo audio de-embed with a local audio return channel
Front-panel USB configuration port and rear RJ-45 for Ethernet monitoring

Where It Is Used

Specifications at a Glance

Video: DisplayPort 1.2a, up to 4096x2160 at 60 Hz, 4:4:4, 21.6 Gbps
Fiber: singlemode, 20 km max reach, 2 or 4 LC connectors, 1310 nm
USB: 1 USB 2.0 port (500 mA) plus 2-port USB HID
Enclosure: half-rack metal, 1.7"H x 8.75"W x 8.5"D, 2.4 lbs
Power: internal 100-240 VAC supply, 29.1 W consumption