Daisy Chained Fiber Explained

Author: Brian Rhodes, Published on Jul 26, 2013

Fiber is a mainstay for networking cameras run far apart. The number of cameras seldom matches the fiber available, and having two strands to run multiple cameras can be a showstopper. In this case, 'daisy chaining', or running multiple cameras in series is a common solution, but it can be a major headache when equipment breaks. In this note we look at fiber 'daisy chaining', discussed why it is used, and what options for improving reliability are available.

Definition

** ***** '****-**-****' **********, '***** ********' *** * ****** ****** ** ********* ******** * ******* of ******* ** ******. ***** ********** ********* ********** *** **** *** **** ******, ***** **** ****** ***** * '****' in *** *****, *** *** ****** **** *** ****** ******* down ***** ***** ******** ** *** ***********. 

*** ***** ********* *** ***** ******** ********:

**** *****, * ***** ** *** ** *** ***** ***** results ** ******** ******* ***** ***. ****** ****** ******** ******** using '****' ** '***** *********' ********, ***** ***** ***** ********** ** ****** ** * single ****. ******* * ****** **** ** ***** *** ************* handle **** ***** *** ********* ** ****** *****, **** ***** is ******** ******, *** *** ********** ****** ** '*** ****** fiber' ********* ** ******* ******** *******.

The ***** ******** *********

***** * ****** ***** **** *** ** **** ** ****** the *** ********* ** **** *******, **** ****** ***** *** own ********** **** *** *******. ******* ******* **** ***** ** costly ** ************* **********, ************ ****** ********* *** ********** ****** to *** ******** ******* ** * ****** **** ** *****. Additionally, *** ****** ****** **** *** ************ ******** *** ***** can ******* **** **** **** ** *********, **** *** * small ************ ******.

Ideal ** *********

******* ***** ***** *** **** ******** ** ****** ** ***** in ***** ** ***********. ****** * ************ '****' ****** ********  several ******** ** *****, **** *** **** ** **** ******, is *** **** ********** ********. ** *** ******* *****, *** others *** **********.  *******, **** ******** ** ************* **** ****** and ******** **** **** ***** **** * ******* ***. 

*************, ***** ****** ****** ******** ***** ******** ** ******* **** * ****** ****. However, ***** **** ******* *********, ** ******** ******** ****** *** fine ****** *********** **** **** ****** ****** *** ***** ** typical ******* **********. ****** *** '**** & ****' ****** ** ethernet *******, ***** ******* **** ** ****** ******** ** ***** interference **** **** ***** ** * *****, ** *********** ***** quality ******** ******. 

*** ***** ***** *********** **** $**,*** ** *****, *********, *** terminations *** * ~** ****** ****** *** ***** * ***** 'Star' ***** ******* ********:

*** ** **** ********* (** ****** *********) *** ******* ****** of ***** ** *** *** ********** ****** *******. **********, ************ that ***** **** ******* ****** (**: *****, ***********, ******* ****, Municipal *******) **** **** * ****** **** ** ****** ** work ****.

*** ***** ***** (********) ******* *** ***** ********* *** **** common ********:

*************, "***** ********" ******** **** * ****** **** ** *****. Using * ****** ******* *********** *** ***** ** ** ******** ********** *** **** ******** ****** ********. ********, ** ***** ****** ********, *** ***** connection ** ****** *** ******* **** * '***** *********', **** allows ** ** ****** ********* ********** (******) ******* ** *** a ******* (*****) *******.

********* ************** *** ***** **********, *** *** '********' *******, *** *** other *** '**********' ************. **** '***** ********', **** ********** **** depends ** *** ***** ****** ** *** ********; ** *** example *****, ** ******* * ** ******, **** *** ****** is ********. *******, ** ******* * **** ****, **** *******, and *** ***** ******* ** *** ***** *** ********.

'**** ********' ****** ***** ******* *** ******* ****** ******* **** daisy ******* *****, ******* *** '****** *******' ** **** ******* by *** ***** ********* **** *** *** **** ** ***** connecting **** - ********* ****** ** **** *******.

Improving ***********

*** ********* ** ***** ******** *** ** ********* **** * few ****** *********. ** ** ********** ***** **** *** ** run ** *** '****' **** ** *** *****, '******** ****', ** '***** ******** ****' *** ***** ** *********** *******. The ***** ***** ***** **** **********:

*** ********** ***** **** ***** * '****' ** *******. ********** '**** ***.** (***)'******* ** *** ****** ******* ** * ****** ** '****************' failover, ****** * **** ****.  **** ** '******* *' ***** in *** ***** ******, *** ****** ****** ***** *** * good ******** ********** ** *** *** ******.

Comments (4)

** *** ***** *** **** **** ******** ** *** ******** project *** ********* *******

** *** **** ******** **** **** ********* ** *****-******** *******. If ******** *** ************ ********, **'* **** ******** ** *** the ****** ***** (******* * ** *** ***** *******) **** to *** ****** ** * ******** *******. **** *** ** a ******* **** *** (******* * *** **** ********* *********** trench) ***** ** ** **** ** *************.

*** ******* ******* ** ***** **** ** **** ** * 6-strand. *** **** ********** ******* * *-****** ***** *** * 6-strand ** ****** ******* ** **** ** *** ******* **** (trenching, *******, *****). **** * *-******, ** *** ***'* **** a ******** ****** *******, *** *** ***** ****** *** *** ring *** **** * **** ** ***** **** ****.

** ********** **** **** **** ** ********, *** ******* *** question **** ** *****: **** *** **** ****** **** *** module ***** "*" **** **** ***** ********* ***** "*"? ** be ** *** **** ****, ** ******* *** **** ******** for ****, ** ***** ***** ** **** *** *** **** media ********** ********* ** * ****** **** ** *** **** switch (******* ** ** *** ******).

* ********* ***** **** *** ******* ** **** *** **** claims ** **. ***** * ************** ******* *** **** ********** (ROADM) ** ***** ** *** ****. *** ***** *** ** multimode ******. *** ***** ** *** ******* ** *** ****** and ********* *** ****** ****. *** -- ****** *** ****** to **** ***** ** *** *******, *** ***** **** *** colored ***** **** *** **** ** *** **** * **** mux ** *** *** ****. *** **** ** ***** *** a **** ****.

******** **** ****** ** ****** **** ************* ****** -- ******* in **** *******. * ****** **** *** ******* ** ******* cameras **** ****** *** *** * ****** ***** ********. ********* that ***** ** *** **** ****-********* *** ************ ********. ** you **** ** *** ***** ** *** ** *** ******* cameras, *** ****** *** ** ******** **** ** * ******* switch. *** *** *** *** **** ******* ****** ** *** would *** *****-******* -- **** *** ******** ***** ******** ** the *****. *** ********** ** *** ******* **** * ***** with ** **** ***** ** *****. *** ***** ** ** the *******.

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports on Networking

IP Networking Course May 2017 on Apr 21, 2017
NOTE: Registration ends this Thursday. This is the only networking course designed specifically for video surveillance professionals plus it...
DDNS vs P2P vs VPN Usage Statistics on Mar 30, 2017
Cyber security concerns are escalating, even in the video surveillance industry which has historically lagged in its attention here. A key...
Top Trade Shows For Security Integrators on Mar 16, 2017
100+ North American security integrators told us what trade shows they attend and why. The most well known shows are ISC West and ASIS but there...
5 Most Common PoE Questions on Feb 02, 2017
In our IPVM IP Networking course, Power Over Ethernet (PoE) is a core component that students show significant interest in. The top ones...
Cisco Favorability Ratings - Positive In Networking, Negative In Surveillance on Jan 06, 2017
Cisco is the big name in networking, but they have not been able to leverage their brand and sizable sales channel in the security industry to the...
Ubiquiti $99 Mesh Node Challenges Wireless Competitors on Jan 05, 2017
Ubiqiuti has become a significant force in wireless video surveillance applications but they have never done mesh. Historically, mesh has been...
IP Networking 2017 Book Released on Jan 02, 2017
The new IP Networking Book 2017 is a 197 page in-depth guide that teaches you how IT and telecom technologies impact modern security systems. The...
Move Aside Cisco, Axis Has A Network Switch For Integrators on Oct 18, 2016
Cisco is a common choice for network switches, including in our Favorite Network Switches survey, but now Axis is releasing a 16 port PoE+ switch...
VLANs for Video Surveillance Tutorial on Sep 26, 2016
Many people confidently say to 'use VLANs' as an answer to IP video networking problems and as a way to signal expertise. But how should VLANs be...
Integrators, Replace Electricians With PoE Lighting on Aug 19, 2016
Electricians often steal security business, causing problems for themselves, users and security integrators. Now, an emerging technology...

Most Recent Industry Reports

IP Networking Course May 2017 on Apr 21, 2017
NOTE: Registration ends this Thursday. This is the only networking course designed specifically for video surveillance professionals plus it...
PureTech Video Analytics Examined on Apr 21, 2017
PureTech's analytics were chosen for a US border protection system (see related post), which the company claims no other analytics vendor was able...
US Border RVSS / Video Analytics System Examined on Apr 21, 2017
US Customs and Border Protection has been rolling out a video analytics-based detection system along the US/Mexico border, with detection ranges...
Beware The "Hit List" Ranking on Apr 21, 2017
The hit list. Kirschenbaum's recent newsletter complained about a 'hit list', bemoaning how a company took aim at ADT. Alas, that's the Google...
Ring Floodlight Cam Tested on Apr 20, 2017
Ring has released their latest entry, the Floodlight Cam, calling it the "Evolution of Outdoor Security", touting motion activated floodlights,...
Lenel President Is Out on Apr 20, 2017
Lenel's challenges continue. Now, Lenel's President is out, suddenly. This follows increasing challenges for the company who has broadly upset...
Dell EMC Surveillance Division Profile on Apr 20, 2017
With revenue growth from traditional IT customers slowing, Dell has set a focus on the security industry as a market where the company can offer...
PatriotOne Deep Neural / Radar Weapon Detection Examined on Apr 19, 2017
The bodyscanner/weapons detection sector has seen several new products, some using advanced approaches like metamaterials (Evolv) or terahertz...
Failing at Marketing, "ALL HIKVISION PRODUCTS" On Sale on Apr 18, 2017
The ballerinas are out. The price cuts are back. Hikvision is struggling to build a premium brand (i.e., 'The Art of Video Surveillance') so...
Axis Network Horn Tested on Apr 18, 2017
We bought and tested the Axis network horn C3003-E, examining setup and calibration, event audio, VMS integration, and sound pressure levels...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact