FOXBOX SR HDMI

Fiber Optic Scaling Receiver for HDMI, Audio, and RS-232

Key Features

Accepts fiber optic signals from FOX Series transmitters and provides scaled HDMI video, stereo audio, and RS‑232 control signals
High performance scaler provides selectable output resolutions up to 1920x1200, including HDTV 1080p/60 and 2K
HDCP compliant
Key Minder^® continuously verifies HDCP compliance for quick, reliable switching
HDMI, DVI, RGB, and HD component video upscaling and downscaling
HDMI audio de-embedding with analog stereo outputs

Model	Version Description	Part #
FOXBOX SR HDMI MM	Scaling Receiver - Multimode	60-1187-21
FOXBOX SR HDMI SM	Scaling Receiver - Singlemode	60-1187-22

The Extron FOXBOX SR HDMI Fiber Optic Extender is a scaling receiver for long haul transmission of HDCP-compliant HDMI, audio, and RS-232 control signals over fiber optic cabling. Engineered for exceptional high resolution image performance, it uses Extron all-digital technology to deliver perfect pixel-for-pixel HDMI computer-video images up to WUXGA 1920x1200, including HDTV 1080p/60. Designed specifically for AV systems, the FOXBOX SR HDMI includes many integrator-friendly features such as Key Minder^®, audio de-embedding, Auto Input Memory, and internal test patterns. A compact, low profile enclosure allows for discreet installation behind a flat-panel display.

As part of the extensive FOX Series of fiber optic products from Extron, the FOXBOX SR HDMI is compatible with FOX Series HDMI, DVI Plus, DVI, VGA, and VGA/YUV transmitters. In addition, it can be used in combination with FOX Series switchers and matrix switchers to create an enterprise-wide HDCP-compliant distribution system. When paired with a FOX Series HDMI transmitter, the FOXBOX SR HDMI supports long distance transmission and scaling of HDCP content.

The FOXBOX SR HDMI is ideal for a wide range of long distance applications requiring scaling of high resolution content with the highest quality. The built-in scaler simplifies integration of sources and displays of different resolutions. The scaling receiver provides support for audio and RS-232 control signals, while allowing HDMI, DVI, RGB, and HD component video signals to be scaled to the optimal resolution for the display device. Because transmission of content is inherently secure and immune to outside interference, fiber applications are favored in government, military, and medical environments.

The FOXBOX SR HDMI features Key Minder to enhance and simplify integration with HDMI-equipped devices. For HDMI signals with protected content, Key Minder continuously authenticates HDCP compliance to support quick and reliable transmission across a fiber optic infrastructure. If HDCP-encrypted content is sent to a non-compliant display, the FOXBOX SR HDMI outputs a full-screen green signal, providing immediate visual notification that protected content cannot be viewed on the display.

The scaling receiver provides industry standard LC-type connectivity and is available in two formats: multimode and singlemode. The FOXBOX SR HDMI MM model supports multimode fiber at 850 nm, which is typically used within buildings or facilities with moderate-range transmission distances. The FOXBOX SR HDMI SM model supports singlemode fiber at 1310 nm, offering long-range transmission capability over extreme distances of up to 30 km (18.75 miles). It is used in large facilities such as airports and stadiums, as well as connecting over long distances between facilities such as at a university campus or medical complex.

Analog RGB/HD Component-to-HDMI Conversion

The FOXBOX SR HDMI is ideal for hybrid AV systems that include a variety of displays and sources at different resolutions. Pairing the FOXBOX SR HDMI with a FOX Series VGA or VGA/YUV transmitter provides easy conversion of analog RGB/HD component to HDMI for non-HDCP content. The built-in scaler ensures an optimal resolution for the display.

Features

Accepts fiber optic signals from FOX Series transmitters and provides scaled HDMI video, stereo audio, and RS‑232 control signals — Accepts signals from Extron FOX Series HDMI, DVI Plus, DVI, VGA, and VGA/YUV transmitters for integration flexibility.

Outputs: HDMI connector, unbalanced or balanced stereo audio on captive screw connector

High performance scaler provides selectable output resolutions up to 1920x1200, including HDTV 1080p/60 and 2K — Scales HDMI, DVI, RGB, or HD component video to the optimal image resolution for the display. The output rate can be selected manually using the on-screen menu system or via RS-232 serial control.

HDCP compliant

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.

HDCP Visual Confirmation — When HDCP‑encrypted content is transmitted to a non‑HDCP compliant display, a full‑screen green signal is sent to the display for immediate visual confirmation that protected content cannot be viewed on that display.

HDMI, DVI, RGB, and HD component video upscaling and downscaling — The FOXBOX SR HDMI features an advanced scaling engine for optimized upscaling and downscaling of high resolution computer-video signals.

HDMI audio de-embedding with analog stereo outputs — Digital HDMI audio is made available as a balanced or unbalanced analog stereo signal on captive screw connectors.

On-screen display — The FOXBOX SR HDMI features an on-screen display that provides status data pertaining to the currently selected input, facilitating easy adjustment of picture settings.

Aspect ratio control — The aspect ratio of the video output can be controlled by selecting a FILL mode, which provides a full screen output, or a FOLLOW mode, which preserves the original aspect ratio of the input signal.

Internal test patterns for calibration and setup — Test patterns include grayscale, crosshatch, crop pattern, color bars, and alternating pixels.

Selectable HDMI audio pass-through — A rear panel toggle switch enables or disables audio signal pass-through on the HDMI output.

Compatible with Extron FOX Series matrix switchers for signal distribution systems up to 1000x1000 and larger

Compatible with Extron FOX Series switchers

Compatible with Extron FOX Series HDMI, DVI Plus, DVI, VGA, and VGA/YUV transmitters

Auto Input Memory — When activated, the receiver automatically stores position and detail settings based on the incoming signal. When that signal is detected again, the proper image settings are automatically recalled from memory.

30 user memory presets — In addition to Auto Memory, 30 user memory presets are available for saving and recall of position and detail information for multiple incoming sources. The ability to save and recall presets is useful in switcher-based environments.

RS-232 control — Features rear panel RS-232 serial port for configuration and control.

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

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 unit can be set up to trigger an external control system for immediate notification when a fiber link is lost.

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

Includes LockIt^® cable lacing brackets — Securely fasten HDMI or USB-C^® to a device, eliminating risk of disconnection.

1" (2.5 cm) high, half rack width metal enclosure

External Extron Everlast™ power supply included, replacement part #70-1174-01 — Provides worldwide power compatibility with high‑demonstrated reliability and low power consumption

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

COMPATIBLE TRANSMITTERS
	FOXBOX T HD-SDI	Fiber Optic Transmitter for 3G-SDI, Stereo Audio, and RS-232
	FOXBOX Tx HDMI	Fiber Optic Transmitter for HDMI, Audio, and RS-232
	FOX T USW 203	Three Input Switcher with Buffered HDMI Output and Integrated Fiber Optic Transmitter for HDMI, VGA, Audio, & RS-232
	PowerCage FOX Tx DVI Plus	Fiber Optic Transmitter for DVI-D, Audio, and RS-232

COMPATIBLE TRANSMITTERS

FOXBOX T HD-SDI

Fiber Optic Transmitter for 3G-SDI, Stereo Audio, and RS-232

FOXBOX Tx HDMI

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

FOX T USW 203

Three Input Switcher with Buffered HDMI Output and Integrated Fiber Optic Transmitter for HDMI, VGA, Audio, & RS-232

PowerCage FOX Tx DVI Plus

Fiber Optic Transmitter for DVI-D, Audio, and RS-232

OPTIONAL ACCESSORIES
	MBD 129	Through-Desk Mount Kit for 1/4 or 1/2 Rack Width, Two-Piece Enclosures
	MBU 125	Low-Profile Mount Kit for 1/4 and 1/2 Rack Width, Two-Piece Enclosures
	RSB 126	Basic Rack Shelf for 6" Deep Products
	RSU 126	Universal Rack Shelf Kit for 6" Deep Products
	RFF Series	Basic Rack False Faceplate Kits
	2LC OM4 MM P	LC to LC Laser-Optimized Multimode Fiber Optic Cable Assemblies - Plenum
	2LC SM P	LC to LC Bend-Insensitive Singlemode Fiber Optic Cable Assemblies - Plenum

OPTIONAL ACCESSORIES

MBD 129

Through-Desk Mount Kit for 1/4 or 1/2 Rack Width, Two-Piece Enclosures

MBU 125

Low-Profile Mount Kit for 1/4 and 1/2 Rack Width, Two-Piece Enclosures

RSB 126

Basic Rack Shelf for 6" Deep Products

RSU 126

Universal Rack Shelf Kit for 6" Deep Products

RFF Series

Basic Rack False Faceplate Kits

2LC OM4 MM P

LC to LC Laser-Optimized Multimode Fiber Optic Cable Assemblies - Plenum

2LC SM P

LC to LC Bend-Insensitive Singlemode Fiber Optic Cable Assemblies - Plenum

SIMILAR PRODUCTS
	FOXBOX Rx HDMI	Fiber Optic Receiver for HDMI, Audio, and RS-232
	PowerCage FOX Rx HDMI	Fiber Optic Receiver for HDMI, Audio, and RS-232

SIMILAR PRODUCTS

FOXBOX Rx HDMI

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

PowerCage FOX Rx HDMI

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

Specifications

FOXBOX SR HDMI

NOTE	The FOXBOX SR HDMI is a receiver that accepts signals from an Extron FOX Series HDMI, DVI, VGA, or VGA/YUV transmitter and is compatible with the FOX Matrix Series. Fiber optic cables link the two units. It is available in singlemode or multimode versions.

NOTE	The FOXBOX SR HDMI is not compatible with the FOX 3G HD-SDI, FOX 3G DVC, or FOX AV models.

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 receiver.

NOTE	This receiver is a class 1 laser product. It meets 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 with an SM transmitter

Multimode

300 m (985') with 62.5 µm OM1 multimode (MM) cables with an MM transmitter
1 km (3280') with 50 µm OM2 multimode (MM) cables with an MM transmitter
2 km (6561') with 50 µm OM3/OM4 2000 MHz bandwidth laser optimized multimode cable with an MM transmitter

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 MM unit, 1310 nm for SM unit

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-D cables or adapters are required for DVI signal input/output.

Resolution range

640x480 up to 1920x1200 @ 60Hz, including 480p, 576p, 720p, 1080i, 1080p @ 60Hz, sampled pixel for pixel; higher resolution 2K (2048x1080) @ 60 Hz, undersampled

Formats

RGB and YCbCr digital video

HDCP

Compliant with High-bandwidth Digital Content Protection (HDCP) using DVI and HDMI standards

Standards

DVI 1.0, HDMI, HDCP 1.1, CEA-861E

Video input — see the video output specifications of the FOX Series HDMI, DVI, VGA, or VGA/YUV transmitter

Video processing

Digital sampling

24 bit, 8 bits per color, 165 MHz standard

Colors

16.78 million

Video output

Number/signal type

1 single link HDMI (HDCP compliant)

Connectors

1 female HDMI type A

Nominal level

0.8 Vp-p

Video delay

1-2 frames

Scaled resolutions

640x480^6,8,9, 800x600^6,8,9, 852x480^6,8,9, 1024x768^6,8,9, 1024x852^6,8,9, 1024x1024^6,8,9, 1280x768^6,8,9, 1280x800^6,8,9, 1280x1024^6,8,9, 1360x765^6,8,9, 1360x768^6,8,9, 1365x768^6,8,9, 1365x1024^6,8,9, 1366x768^6,8,9, 1400x1050^6,8, 1440x900^6,8,9, 1600x1200^6,8, 1680x1050^6,8, 1920x1200^6,8
HDTV: 480p^7,8, 576p⁶, 720p^3,4,5,6,7,8, 1080i^6,7,8, 1080p^{1,2,3,4,5,6,7,8}, 2048x1080^{1,2,3,4,5,6,7,8}
¹ = 23.98 Hz, ² = 24 Hz, ³ = 25 Hz, ⁴ = 29.97 Hz, ⁵ = 30 Hz, ⁶ = 50 Hz, ⁷ = 59.94 Hz, ⁸ = 60 Hz, ⁹ = 75 Hz.

Audio

Gain

Range

Adjustable, -18 dB to +10 dB

Default

Unbalanced output: -6 dB

Frequency response

20 Hz to 20 kHz, ±0.5 dB

THD + Noise

0.10% @ 1 kHz at nominal level

S/N

>80 dB at maximum output (unweighted)

CMRR

65 dB @ 20 Hz to 20 kHz

Audio bits per sample

18 bits per channel, 2 channels (L, R)

Sampling rate

48 kHz

Audio input — see the audio output specifications of the FOX Series HDMI, DVI, VGA, or VGA/YUV transmitter

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

Audio output

Number/signal type

1 balanced/unbalanced stereo or 2 balanced/unbalanced mono

Connectors

(1) 3.5 mm captive screw connector, 5 pole

Impedance

50 ohms unbalanced, 100 ohms balanced

Nominal level

-10 dBV (316 mVrms)

Maximum level (Hi-Z)

+11.0 dBu, balanced at 1% THD+N

Maximum level (600 ohm)

>+10.0 dBu, balanced at 1% THD+N

Audio delay

1.5 frames

Communications — receiver

Serial control ports

Control

1 RS-232, 2.5 mm mini stereo jack (front panel)
1 RS-232, 3.5 mm captive screw connector, 3-pole (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

NOTE	Protocol is mirrored between the transmitter and the receiver.

Serial control pin configuration

Mini stereo jack: tip = Tx, ring = Rx, sleeve = GND
Captive screw: 1 = Tx, 2 = Rx, 3 = GND

Program control

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

General

Power supply

External
Input: 100-240 VAC, 50-60 Hz
Output: 12 VDC, 1.5 A, 18 watts

Power consumption

Device

8.4 watts, 12 VDC

Device and power supply

10.5 watts, 100-240 VAC, 50-60 Hz

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

Convection, vents on top and side panels

Thermal dissipation

Device

28.4 BTU/hr

Device and power supply

35.5 BTU/hr

Mounting

Rack mount

Yes, with optional rack shelf

Furniture mount

Yes, with optional under desk mounting kit

Enclosure type

Metal

Enclosure dimensions

1.0" H x 8.75" W x 6.0" D (half rack wide)
(2.5 cm H x 22.2 cm W x 15.2 cm D)
(Depth excludes connectors and switch.)

Product weight

1.1 lbs (0.5 kg)

Regulatory compliance

CE, c-UL UL, CE**, 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.

(4374-090718-D9)

Shipping Dimensions and Weights
Part #	Height	Width	Depth	Weight
60-1187-21	4.63" (11.7 cm)	9.75" (24.8 cm)	10.75" (27.3 cm)	2.6 lbs (1.18 kg)
60-1187-22	4.63" (11.7 cm)	9.75" (24.8 cm)	10.75" (27.3 cm)	2.6 lbs (1.18 kg)

FOXBOX SR HDMI

Analog RGB/HD Component-to-HDMI Conversion

Features

Specifications

Diagram

Panel Drawing