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Managed Fiber Optic Switch

Name: Managed Fiber Optic Switch
Brand: Thorbroadcast
Price: 3595 USD
Availability: InStock

Model: F-OS-2x1

Qty: 0

Price: $3,595.00

Availability:	In stock	Condition:	new
Shipping:	starting at $0.00	Warranty:	2Yrs

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Description Features Drawings Specification Q&A Support

Description

F-OS Optical Switch

The F-OS optical switch is used for system redundancy and backup. With the use of an optical switch, a redundant signal can be routed to an active path in the event of a fault. The F-OS optical switch features low insertion loss which is typically 0.6dB. The unit offers three types of switching 1x2, 2x1, or 2x2. The remote switching ability is very useful for managed systems. A front panel LCD provides system status and provides a means of programing the switch. The F-OS can also be dynamically configured for CADM and OXC systems.

Features

• High frequency monitoring resolution.
• Standard RS232 communication interface
• Integrated SNMP network management function.
• The switch mode is automatic or manual.
• Switch reference level can be set through front panel or Internet.

Drawings

Specification

*All Specifiactions Subject to Change Without Notice
Working Wavelengths	1260~1360nm, 1510~1610nm, 1310nm
Input Power Range	-30 ~ -20dBm, -10 ~ +10dBm, +10 ~ +30dBm
Total Insertion Loss	2.0dB
Switch Loss	<1.0dB(type,≤0.8dB)
Splitter Loss	<0.5dB
Connector Loss	<0.5dB
Echo Loss	55 dB
Polarization Dependent Loss	0.1dB
Repeatability	± 0.02dB
Switch Time	10ms
Voltage	135~250 VAC
Optical Connector	FC/APC & SC/APC
Transmission Power	500mW
Size	19×1.75×14.2"

Question and Answers

Question:

I would be interested in the fiber optical switch for an automated failover scenario. I am not sure if this works, but trying to look for a solution where multiple digital video signals (HDMI and maybe SDI in addition) converted to optical fiber and be then wavelength multiplexed to send multiple video signals over one single fiber cable - and then having a unit to split that fiber signal to two identical signals run over two different cables and at the receiving end having an automatic failover switch to have two fiber inputs and one output which then is connected to a wavelength demultiplexer and afterwards converting to HDMI again. Is this feasible at all and might that even work? Would the switch time affect the video signals when a fail happens, or would this be possible without any interruptions? I was looking at the F-OS-2x1 for the failover switch

Answer:

We do have 1 SDI or multiple (up to 16) over 1 fiber optical transport equipment available, so they can be used as SDI fiber converters.

https://thorbroadcast.com/product/8-ch-sd-hd-3g-sdi-over-single-fiber-cwdm-uncompressed-rack-mountable.html

You could use the optical switch for failover, but there will be a 10ms switching time. So, depending on the frame rate, it will have a slight effect on 1 frame.

At 60/59.94Hz, a 10ms interruption affects ~0.6 of a frame.
At 30/29.94 Hz, a 10ms interruption affects ~0.3 of a frame.
The lower the frame rate, the smaller the fraction of a frame disrupted by the same interruption duration.

At 59.94Hz:

Frame Duration: Frame Duration=159.94≈16.68 ms per frame
Frame Duration=59.941?≈16.68ms per frame
Interruption: A 10ms interruption is less than one frame duration (16.68ms), so it would affect: 1016.68≈0.6 of a frame
Conclusion: Less than 1 frame is affected, similar to 60Hz.

2. At 30Hz:

Frame Duration: Frame Duration=130=33.33 ms per frame
Frame Duration=301?=33.33ms per frame
Interruption: A 10ms interruption is much shorter than one frame duration (33.33ms), so it would affect: 1033.33≈0.3 of a frame
Conclusion: Less than 1 frame is affected, but a smaller portion compared to 59.94Hz or 60Hz.