FOX II T HD 4K

Fiber Optic Transmitter for HDMI, Multi-Channel Audio, RS-232, and IR

Key Features

Transmits HDMI video, multi‑channel audio, RS‑232 control, and IR control signals over fiber optic cabling
Supports lossless 4K video up to 4096x2160 at 30 Hz with a 4:4:4 color space over one fiber
HDCP compliant
Key Minder^® continuously verifies HDCP compliance for quick, reliable switching
EDID Minder^® automatically manages EDID communication between connected devices
Buffered HDMI input loop‑through

Model	Version Description	Part #
FOX II T HD 4K MM	HDMI Transmitter - Multimode	60-1351-11
FOX II T HD 4K SM	HDMI Transmitter - Singlemode	60-1351-12

The Extron FOX II T HD 4K Fiber Optic Transmitter provides long haul extension of HDMI video, multi‑channel audio, RS‑232 control, and IR control signals over fiber optic cabling. This HDCP-compliant transmitter brings new features to the FOX II Series. Engineered with uncompromising quality and proven performance, it uses Extron all‑digital technology to deliver lossless HDMI video signals at resolutions up to 4096x2160. The transmitter also includes many integrator-friendly features such as Key Minder^®, EDID Minder^®, input loop-through for a local monitor, audio embedding, audio gain and attenuation, an internal test pattern, as well as real‑time system monitoring. The FOX II T HD 4K represents the highest level of performance for the extensive FOX Series of fiber optic products from Extron.

The FOX II T HD 4K supports resolutions up to 4K to ensure that content is delivered with the highest quality possible over a fiber optic cable. A single transmitter is capable of sending 4K video images up to 4096x2160 at 30 Hz with a 4:4:4 color space over one fiber.

The input loop-through also supports 4K HDMI displays. The FOX II T HD 4K transmitter can be used with the FOX II R DP 4K receiver in point‑to‑point applications or in combination with a FOX Series matrix switcher for an enterprise‑wide HDCP‑compliant distribution system of 4K HDMI video, multi‑channel audio, RS‑232 control, and IR control signals.

To simplify integration with digital sources and displays, the HDMI transmitter features two Extron technologies: EDID Minder and Key Minder. EDID Minder automatically manages EDID by maintaining continuous EDID communication between connected devices, ensuring that the source powers up properly and maintains video output for display. For digital video signals with protected content, Key Minder authenticates and maintains continuous HDCP encryption to support quick and reliable switching in professional AV environments, while enabling simultaneous distribution of a single source signal to one or more displays.

In addition to HDMI video signals, the FOX II T HD 4K supports multi‑channel audio and an analog audio return channel. Multi‑channel audio allows a variety of audio playback options including distribution to surround sound systems. For added flexibility, the analog audio return channel enables a remote audio source at or near the display to transmit stereo audio back to the transmitter for additional processing or distribution, eliminating the need for an additional transmitter and receiver pair.

The FOX II T HD 4K features bidirectional RS‑232 and IR ports for control of AV devices. Sources and displays can be controlled from either the transmitter or receiver end using either RS‑232 or IR signals.

The fiber optic transmitter is available in multimode and singlemode models. The FOX II T HD 4K MM supports multimode fiber at 850 nm, which is typically used within buildings or facilities with moderate‑range transmission distances up to 2 km (1.25 miles). The FOX II T HD 4K SM supports singlemode at 1310 nm, offering long‑range transmission capability over extreme distances of up to 30 km (18.75 miles). It can be used in very large facilities such as airports and stadiums, and for connecting over very long distances between facilities such as university campuses. Because transmission of content is inherently secure and immune to outside interference, fiber applications are particularly favored in government, military, and medical environments. For enhanced security, the extender can be set up to trigger an external control system for immediate notification if a fiber link is lost. It features industry standard LC‑type connectivity. The 1U, half rack width metal enclosure is designed for installation in professional AV environments.

Features

Transmits HDMI video, multi‑channel audio, RS‑232 control, and IR control signals over fiber optic cabling

Inputs: Female HDMI connector with buffered input loop‑through, unbalanced stereo audio on 3.5 mm stereo mini jack and balanced/unbalanced stereo audio on captive screw connector

Outputs: Balanced/unbalanced stereo audio on captive screw connector

Supports lossless 4K video up to 4096x2160 at 30 Hz with a 4:4:4 color space over one fiber — A single transmitter and receiver set supports a 4K/30 video with 4:4:4 color space over one fiber.

HDCP compliant

User-selectable HDCP authorization — Allows the FOX II T HD 4K to appear HDCP compliant or non‑HDCP compliant to the connected source, which is beneficial if the source automatically encrypts all content when connected to an HDCP-compliant device. Protected material is not passed in non‑HDCP mode.

Key Minder^® continuously verifies HDCP compliance for quick, reliable switching — Key Minder authenticates and maintains continuous HDCP encryption between input and output devices to ensure quick and reliable switching in professional AV environments, while enabling simultaneous distribution of a single source to multiple displays.

EDID Minder^® automatically manages EDID communication between connected devices — EDID Minder ensures that the source powers up properly and reliably outputs content for display.

Buffered HDMI input loop‑through — A buffered HDMI input loop‑through provides an output signal to drive a local monitor.

Audio embedding — Analog stereo audio signals are converted to digital HDMI audio.

Audio gain and attenuation adjustment capability

Analog audio return channel — The FOX II T HD 4K provides balanced return analog stereo audio output to support a remote audio source at the receiver.

Bidirectional RS‑232 and IR signal transmission over fiber optic cabling for AV device control — Bidirectional RS‑232 and IR control pass-through enables a remote display to be controlled without the need for additional cabling. Two fibers are required for bidirectional communications.

Available as an 850 nm multimode model for moderate‑range transmissions up to 2 km (1.25 miles) and a 1310 nm singlemode model for extreme distances up to 30 km (18.75 miles)

Industry standard LC connectors provide reliable physical connectivity and precise fiber core alignment

Alarm notification for fiber link loss — The transmitter can be set up to trigger an external control system for immediate notification if a fiber link is lost.

RS‑232 control — Features an RS‑232 serial port for control and configuration.

Real‑time status LED indicators for troubleshooting and monitoring — Front and rear panel LEDs verify signal presence, HDCP authentication, fiber link status, and power.

Easy setup and commissioning with Extron’s PCS – Product Configuration Software — Conveniently configure multiple products using a single software application.

Internal color bars test pattern for calibration and setup

Compatible with Extron FOX Series matrix switchers to create HDCP‑compliant signal distribution systems up to 1000x1000 and larger

Compatible with the Extron FOX II R DP 4K receiver

Compatible with Extron FOX II Series audio and control products

Front panel USB configuration port

JITC Certified — Successfully completed interoperability and information assurance testing for use in government applications and other mission-critical environments.

1U high, half rack width metal enclosure

Internal Extron Everlast™ power supply — Provides worldwide power compatibility, with high‑demonstrated reliability and low power consumption for reduced operating cost

Extron Everlast Power Supply is covered by a 7‑year parts and labor warranty

COMPATIBLE RECEIVERS
	FOX II R DP 4K	Fiber Optic Receiver for DisplayPort, Multi-Channel Audio, RS-232, and IR

COMPATIBLE RECEIVERS

FOX II R DP 4K

Fiber Optic Receiver for DisplayPort, Multi-Channel Audio, RS-232, and IR

OPTIONAL ACCESSORIES
	MBU 123	Low-Profile Mount Kit for 1/8, 1/4, and 1/2 Rack Width Products
	UTS 100 Series	Under Table Shelf System
	Half Rack Shelf System	Half-Rack Width Rack Shelf and Accessories
	RSU 129	Universal Rack Shelf Kit for 9.5" Deep Products
	RSB 129	Basic Rack Shelf for 9.5" Deep Products

OPTIONAL ACCESSORIES

MBU 123

Low-Profile Mount Kit for 1/8, 1/4, and 1/2 Rack Width Products

UTS 100 Series

Under Table Shelf System

Half Rack Shelf System

Half-Rack Width Rack Shelf and Accessories

RSU 129

Universal Rack Shelf Kit for 9.5" Deep Products

RSB 129

Basic Rack Shelf for 9.5" Deep Products

SIMILAR PRODUCTS
	FOXBOX Tx HDMI	Fiber Optic Transmitter for HDMI, Audio, and RS-232

SIMILAR PRODUCTS

FOXBOX Tx HDMI

Fiber Optic Transmitter for HDMI, Audio, and RS-232

Specifications

FOX II T HD 4K

specification

Frame rate¹

24, 25, 30, 50, 60, or 120 fps

Chroma sampling¹

4:4:4

Color bit depth¹

8 or 10 bits per color

Signal Type

DVI 1.0, HDMI 1.4a, HDCP 1.4

Max. video data rate

8.91 Gbps per connection

NOTE	¹Subject to the maximum data rate limit. Use our calculator at www.extron.com/8Kdatarate* to determine video parameters supported by this data rate.*

NOTE	This product requires two parallel connections to achieve 4K at 50 or 60 fps at 8 bits per color.

NOTE	This product requires four parallel connections to achieve 4K at 50 or 60 fps at 10 bits per color.

NOTE	This product requires four parallel connections to achieve 4K at 120 fps at 8 bits per color.

NOTE	The analog audio signal(s) is (are) digitized in the transmitter, sent through the fiber cable, and converted back to analog audio in the compatible receiver.

NOTE	These transmitters are class 1 laser products. They meet the safety regulations of IEC-60825.

Optical fiber interconnection between transmitter and receiver

Number/type

2 fiber optic

Connectors

2 LC connectors

Operating distance

Singlemode

30 km (18.75 miles) with singlemode (SM) cables

Multimode

300 m (984') with 62.5 µm OM1 multimode (MM) cables
1 km km (3280') with 50 µm OM2 multimode (MM) cables
2 km (6561') with 50 µm OM3/OM4 2000/4700 MHz bandwidth laser optimized multimode cables

NOTE	Operating distance is approximate. These are typical maximum distances that may vary depending on factors such as fiber type, fiber bandwidth, connector splicing, losses, modal or chromatic dispersion, environmental factors, and kinks.

Nominal peak wavelength

850 nm for multimode, 1310 nm for singlemode

Data rate

4.25 Gbps

Transmission power

Singlemode

-5 dBm, typical

Multimode

-5 dBm, typical

Maximum receiver sensitivity

Singlemode

-18 dBm, typical

Multimode

-12 dBm, typical

Optical loss budget

Singlemode

13 dB, maximum

Multimode

7 dB, maximum

Video

NOTE	Appropriate HDMI to DVI cables or adapters are required for DVI signal output.

Maximum data rate

Up to 8.91 Gbps

Maximum pixel clock

300 MHz

Resolution range

640x480 up to 4096x2160 @ 24/30 Hz or UHD (3840x2160 @ 24/30 Hz, including 2K, and 1920x1200, including 480p, 576p, 720p, 1080i @ 25/30 Hz, 1080p @50/60/120Hz

Frame rate

24 fps, 25 fps, 30 fps, 50 fps, or 60 fps

Color space

4:4:4

Color bit depth

10 bits for resolutions up to 1080p, 8 bits for resolutions above 1080p

Signal Type

DVI 1.0, HDMI 1.4a, HDCP 1.4, CEA-861E

Maximum effective data rate

Up to 10.2 Gbps (3.0 Gbps per color)

Horizontal frequency

24 kHz to 135 kHz

Vertical frequency

40 Hz to 120 Hz

Format

RGB, YCbCr, and xvYCC digital video

EDID

Supports emulation of custom or factory preset Extended Display Identification Data (EDID) tables.

Video input and loop through — transmitters

Number/signal type

1 HDMI input
1 HDMI loop-through

Connectors

1 female HDMI input
1 female HDMI loop-through

Video output — See specifications for the connected receiver

Audio

Gain

Range

Adjustable, -18 dB to +13 dB

Default

Captive screw connector

Balanced output: 0 dB (default); unbalanced output: -6 dB

Mini stereo jack

Unbalanced output: 0 dB

Frequency response

20 Hz to 20 kHz, ±0.5 dB

THD + Noise

0.10% @ 1 kHz at nominal level

S/N

>90 dB at maximum output (unweighted)

CMRR

65 dB @ 20 Hz to 20 kHz

Audio bits per sample

16, 20, 24 bit

Sampling rate

32 kHz, 44.1 kHz, 48 kHz

Audio input

Number/signal type

1 digital audio, de-embedded from HDMI or
2 inputs:
1 balanced stereo
1 unbalanced stereo or 2 unbalanced mono

Connectors

1 female HDMI (shared with video input)
(1) 3.5 mm stereo jack
(1) 3.5 mm captive screw connector, 5 pole

Impedance

≥ 20k ohms balanced

Nominal level

+4 dBu (1.23 Vrms), -10 dBV (316 mVrms)

Maximum level

+21.0 dBu, balanced at 1% THD+N (5-pole); +15.0 dBV, unbalanced (3.5 mm stereo)

Source formats

2 CH LPCM

NOTE	0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

Audio output — See specifications for the connected receiver

Audio return input — See specifications for the connected receiver

Audio return output

Number/signal type

1 stereo/mono, balanced

Connectors

(1) 3.5 mm captive screw connector, 5 pole

Impedance

100 ohms balanced (analog only)

Nominal level

+4 dBu (1.23 Vrms)

Maximum level (Hi-Z)

+12.0 dBu , balanced at 1% THD+N

Communications

Serial control port

Control

1 female mini USB port B (front panel)
1 RS-232, 3.5 mm captive screw connector, 5-pole (3 pins are used), rear panel

Pass-through

1 RS-232, 3.5 mm captive screw connector, 5-pole (3 pins are used), rear panel

Baud rate and protocol

Control

9600 baud, 8 data bits, 1 stop bit, no parity

Pass-through

9600 to 115,200 baud

Serial control pin configuration

Captive screw: 1 = Tx, 2 = Rx, 3 = Gnd

Program control

Extron control/configuration program for Windows^®
Extron Simple Instruction Set (SIS^™)

IR control port

(1) 3.5 mm captive screw connector, 5 pole (connector is shared with RS-232 pass thru) TTL level (0 to 5V) modulated infrared control from 30kHz to 40 kHz

IR control pin configuration

3 = Gnd, 4 = IR Tx, 5 = IR Rx

General

Power supply

Internal
Input: 100-240 VAC, 50-60 Hz

Power consumption

18.5 watts, 12 VDC

Ambient temperature/humidity

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

Cooling

Fan, front to back

Thermal dissipation

62.1 BTU/hr

Mounting

Rack mount

Yes, with optional rack shelf

Furniture mount

Yes, with optional under desk mounting kit

Enclosure type

Metal

Enclosure dimensions

1.75" H x 8.7" W x 8.5" D (half rack wide)
(4.4 cm H x 22.1 cm W x 21.6 cm D)
(Depth excludes connectors.)

Product weight

2.2 lbs (1.0 kg)

Regulatory compliance

CE, c-UL, UL, C-tick, FCC Class A, ICES, VCCI
Complies with the appropriate requirements of RoHS, WEEE.

Product warranty

3 years parts and labor

Everlast power supply warranty

7 years parts and labor

NOTE	All nominal levels are at ±10%.

NOTE	Specifications are subject to change without notice.

(4970-D7)

Shipping Dimensions and Weights
Part #	Height	Width	Depth	Weight
60-1351-11	5.0" (12.7 cm)	14.0" (35.6 cm)	13.0" (33.0 cm)	4.6 lbs (2.09 kg)
60-1351-12	5.0" (12.7 cm)	14.0" (35.6 cm)	13.0" (33.0 cm)	4.6 lbs (2.09 kg)

Diagram

Features

Specifications

Diagram

Panel Drawing