Remote (Field) Troubleshooting
Other Risk Reduction Opportunities
Remotely Certify
PON Circuits
Troubleshooting
PON
Certify PON Lines
under construction
with Remote Fiber Test
Construction
PON teams include network joiners, testers, and auditors, sharing tools on many trips. Optimize end to end construction via remote, auto test certification with a mobile app. Centralized test allows joiners to test and build an automatic audit of network inventory using their mobile app to execute OTDR line test for continuity, optical loss and budget. Problems are identified immediately, fixed and passed in one trip by one person, reducing trips and social contact by 40-60%.
Ensure PON networks are built as planned
Test is set up expertly and executed remotely with mobile phone instead of shared tools.
MDU
NOC
Headend/
Central Office
Splitter
Home
Small business
Hub/Local Office
MDU
Small business
Home
Splitter
HUB/
Local Office
NOC
HEADEND/
CENTRAL OFFICE
Remotely Certify PON Circuits
for Service Activation Leads
Remotely confirm FTTP circuit readiness. A remote test verifies the optical parameters. If drop lines are needed, the test can be performed at the premise ONT termination using a reflector with-out an instrument on site. A tech records the successful service test results or troubleshoots loss with the mobile app.
Gain End to End Test Visibility
from the NOC with ONMSi RFTS
Service Activation
MDU
Small business
Home
Splitter
Hub/
Local Office
NOC
Headend/
Central Office
Troubleshoot PON Remotely using
ONMSi PON Manager (RFTS)
PON is vulnerable to human handling
and damage. You want to dispatch one
person to fix, vs. several techs to find problems.
A central remote fiber test system allows trouble-
shooting on demand to pinpoint faults before dispatch.
Remotely locate PON network
problems precisely before dispatch.
An OLT alarm or a customer complaint arrives.
The new OTDR trace is compared automatically
against the baseline calculating new loss faults.
Fault data and MTTR notes are added to management reporting.
A Service rep/tech remotely tests to the circuit.
The tech is dispatched to remediate at a precise fault location and recertifies the line using the app and OTU-8000.
Service is restored while staff are protected from unnecessary, risky visits.
Remote Troubleshooting/Maintenance
DAA
NODE
Hub/
Local Office
NOC
Headend/
Central Office
Increase DWDM network
availability with remote
fiber test and demarcation
DAA architecture combines DWDM channels over
trunk lines and demuxes wavelengths by service
node. Monitor the trunk with 1650 nm. Post DEMUX, locate fiber faults by tuning to the node wavelength using an RFTS to accelerates workflow and reporting.
Demarcate between fiber vs.
network elements in a DAA network.
In Service Monitoring
MUX
DWDM
DeMUX
Business
5G
Remote OLT
HUB
DAA
NODE
(point F)
Business
5G
Remote OLT
MUX
DWDM
DeMUX
NOC
HEADEND/
CENTRAL OFFICE
Ensure Data Center Interconnect
Up-time and Rapid Restoration when a Fiber-caused Outage occurs
DCIs carry terabits of data between datacenters
to ensure load and resource sharing. DCI availability, bandwidth and latency are critical to business
operations. Remote monitoring is fundamental
arsenal in the fight against service problems.
Automatically pinpoint DCI threats using Smart OTU remote monitoring
A fiber optic test head baseline is taken at
both ends of the DCI.
An alarm is automatically sent with the location/ severity of the new fault. The tech is dispatched to the pinpoint location to remediate and remotely recertifies repairs using the Optical Test Head (OTU-5000).
A rapid scan cycle switches across fibers, monitoring degradation against a quality baseline.
A human or degradation damages the line.
Data is auto recorded and MTTR notes are reported, unnecessary visits are avoided.
In-service Monitoring
Remotely
Control ONX-220
Safely
Ensure Drop
Remote
Fiber Test
Remote
Instrument Access
Triage 3rd Party Application Issues
MDU
Small business
Home
Splitter
HUB
NOC
HEADEND/
CENTRAL OFFICE
MDU
Splitter
DAA
NODE
Business
5G
Remote OLT
MUX
DWDM
DeMUX
NOC
Headend/
Central Office
MDU
MDU
Small business
Home
Splitter
Splitter
Hub/Local Office
NOC
Test Process Automation
Ensure high quality test process from design, to execution and reporting to reduce errors, eliminate repeat work and ensure high quality network services.
Managers push expert test plans with workorders to tech’s instruments daily in a contactless process.
Techs execute the test script and auto capture reporting results with the mobile app to the cloud. No face to face meetings, paper workorders, or USB sticks need be shared.
Construction, Activation and Maintenance
Data Center
Data Center
Small business
Troubleshooting
PON
Ensure
Interconnect Up-time
XPERTrak Remote
Fault Localization
XPERTrak
Single-person
Troubleshooting
XPERTrak Remote
Fault Localization
XPERTrak
Single-person Troubleshooting
Solution for
DWDM Link Test
Ensure
Interconnect Up-time
PON link builder tests point remotely
with the ONMSi App.
If Fail, the OTDR trace locates the fault, repairs are made and test passes.
Premise passed data is auto recorded in ONMSi database.
Technician receives pass/fail in 10 seconds. If Pass, the OTDR trace is saved as baseline for future fiber health analysis.
The Feeder, distribution and drop sections are methodically tested passed in order to qualify a clean build.
The customer receives accurate installation timing, no one goes on site unless network is ready and repeat appointments are avoided.
Customer service requests a test to the last network test point constructed to reverify pass before setting service appointment.
If fail, mobile app OTDR trace view locates faults,
circuit is repaired.
The new premise connected includes a birth certificate with optical measurements.
If needed, the drop is added with end to end certification in ONMSi App. If pass, service is installed.
Data is auto recorded
as a baseline for future monitoring.
A fiber test head scans trunk line fibers to locate issues or the EMS element alarm alerts the team.
If fault is detected, dispatch to fix at a precise location and notify customers. Post repair the line is tested remotely and returned
to service.
Data is auto recorded and MTTR notes are reported, unnecessary
visits are
avoided.
Tune the DWDM fiber test head (OTU-8000) to the node specific wavelength to trouble-shoot fiber. The OTDR pulse passes through the DEMUX to the desired node.
If no fiber fault exists, return to
the 1650 trunk monitoring wavelength
and troubleshoot elements.
Increase DWDM
Network Availability
End-to-End
Certification
Protect In-flight
Data
Increase DWDM
Network Availability
End-to-End
Certification
Protect In-flight
Data
DAA
NODE
(point F)
5G
Remote OLT
DWDM
DeMUX
NOC
Headend/
Central Office
MUX
Business
Hub/
Local Office
Protect In-flight
Data from Hackers
Cyber espionage is a threat to all organizations maintaining regulated, personal information and strategic data. Stealing in-flight data with optical couplers is cheap, easy and does not disrupt the traffic while a copy of your data is stolen. Detect these malicious taps using a highly sensitive
OTDR monitoring RFTS system to detect a breach.
Automatically locate data theft tapping threats.
A fiber optic test head
is placed at both ends of the line or looped back to take a baseline and identify existing taps for removal.
A technician removes the tap and recertifies the clean line with automatic progress reporting.
A rapid scan cycle
across the fibers
detects intrusion
and degradation.
An alarm is automatically sent with the location & severity of a new tap/fault.
Millions of dollars'
worth of data are vigilantly protected automatically where theft would otherwise go unnoticed.
Maintenance and Monitoring
Data Center
Data Center
The DCI SLA is managed with objective data, faults are located instantly, limiting downtime and MTTR.
Data Center
Data Center
The key to reducing contact points, field time
on premise and efficient workflow is to automate
the test loop of define, assign, test and analyze
reporting. The VIAVI TPA tool Suite includes
a mobile app, a job manager, and the StrataSync
cloud services with an API, reporting dashboards
and test data management to enable your team to:
1. Avoid handling of physical work orders/
reporting and face to face job assignment
2. Accelerate workflow
Job, supervisory
and network reporting are
stored in the cloud.
Login, drill down to
see job progress
and network data.
Test errors are avoided, reports are collected with limited effort and social distancing protects workers.
DSLAM
More info
Remote OLT
(for PON/RFoG)
Service Installation
& Activation
Remote
Triage
Remote
Fiber Test
Remote
Instrument Access
Triage 3rd Party Application Issues
Solution for
DWDM Link Test
Remotely Certify
PON Circuits
Remotely
Control ONX-220
Safely
Ensure Drop
More info
Business
5G
Remote OLT
DWDM
DeMUX
MUX
NOC
Headend/
Central Office
MDU
MDU
Small business
Small business
Home
Splitter
DSLAM
Splitter
DAA
NODE
Hub/Local Office
NOC
Data Center
Data Center
Remote Instrument
Access and Operation
Supporting techs in the field securely, in real time
and faster to get it “right the first time.” Minimizes
tech exposure and avoids costly site revisits due
to incomplete certification/testing. Applies equally
to new techs who are learning and gaining
experience as well as experienced techs who come
up against those tougher, more complex tasks.
Enable secure remote control of instruments UI to minimize time spent
on site or inside customer premises.
Connect instrument to Internet or local network via WiFi, Ethernet or USB tethering to iOS/Android smartphone.
Use laptop, tablet, smart-phone or connect machine-
to-machine to remotely control instrument UI (locally or from distance).
Remote ProblemAssessment/
Troubleshooting/Maintenance
Setup or verify field instrument configs
and run tests.
Centrally isolated/ located experts can remotely coach less experienced personnel
in the field.
Remote on-demand test, live results analysis, result file retrieval.
More info
Business
5G
Remote OLT
(for PON/RFoG)
DWDM
DeMUX
MUX
NOC
HEADEND/
CENTRAL OFFICE
MDU
MDU
Small business
Small business
Home
Splitter
DSLAM
Splitter
DAA
NODE
(point F)
HUB
NOC
DATA CENTER
DATA CENTER
Complete End-to-End PON
certification – One person,
automated bi-directional PON test
Automated bi-directional approach to testing the completed PON network to significantly improve the quality/fidelity of the test result and prove higher quality end to end PON build, saving on overall time for the test and certifying process.
End-to-End SmartLink Mapper (E2E-SLM)
Adopt a bi-directional test approach to certify quality end to end PON builds
Unmanned and auto-mated OTDR at the Hub or Local Office (LO) to test feeder fiber once.
Tech uses second OTDR
in the field to perform shorter/faster test of all drop/distribution fibers and splitter(s).
Construction
Hub/LO unit passes results to field unit to combine with field results for on-board report generation.
Remotely access Hub/LO and field instruments with Smart Access Anywhere (SAA)
to verify configs, check results,
coach techs.
Techs can work
in isolation in the field.
DAA
NODE
5G
Remote OLT
DWDM
DeMUX
NOC
Headend/
Central Office
MUX
Business
Remote OLT
(for PON/RFoG)
Hub/Local Office
Remote solution for on-demand DWDM link test – validate end to end link through MUX and DeMUX
The VIAVI DWDM OTDR solution performs complete end-to-end link characterization and troubleshooting through MUX/DEMUX of newly deployed or live DWDM and hybrid CWDM/ DWDM networks. Perfect for cable, mobile, and telecommunications operators dealing with Distributed Access Architecture (DAA), C-RAN
and mobile front/backhaul access networks or business services.
Use a DWDM OTDR mounted on the
T-BERD/MTS platform to perform
on-demand DWDM link verification where chance of service interruption
or damage has increased.
Remote Problem Assessment/
Troubleshooting/Maintenance
Connect OTDR to unused MUX port at Hub/Local Office (LO).
Remotely access Hub/LO instrument with Smart Access Anywhere (SAA).
Basic check that DWDM network/link feeding network elements (e.g.
DAA nodes) isn’t
at fault.
Use WaveScan to identify/check port wavelength and leave
in place.
Run OTDR test to
verify MUX/ DeMUX components and core/common/main DWDM fiber continuity and connectivity.
More info
Business
5G
Remote OLT
DWDM
DeMUX
MUX
NOC
Headend/
Central Office
MDU
MDU
Small business
Small business
Home
Splitter
DSLAM
Splitter
DAA
NODE
(point F)
Hub/Local Office
NOC
Data Center
DATA CENTER
Triage 3rd Party Application
Issues vs Network issues
Use of 3rd party applications like VPN’s have rapidly accelerated with the increase in people working from home or eLearning. Quickly determining with high confidence whether customer complaints about VPN issues are caused by the applications themselves (outside of their control) or network issues has been
a challenge, but virtual agents like Virtual
TrueSpeed make this task simple and efficient.
Customer experiences issues with VPN performance while working from home, calls Service Provider.
Call agent checks for obvious network issues, none noted.
Virtual TrueSpeed is executed, exceptions noted as packets
traverse network.
Troubleshooting
Care agent views results, finds excessive packet loss at VPN provider.
No network issues noted, almost certainly VPN application issue.
Call Agent sends link for customer to download Virtual TrueSpeed on their PC.
More info
Business
5G
DAA Node
MUX
NOC
HEADEND/
CENTRAL OFFICE
MDU
MDU
Small business
Small business
Home
Splitter
DSLAM
Splitter
DAA
NODE
(point F)
HUB
NOC
DATA CENTER
DATA CENTER
Remotely Discerning
Home vs Plant Problems
We all want to avoid ever entering a customer
home or business to minimize everyone’s risk, but
when we do send a Tech in we need to be 100%
sure that entry is necessary. XPERTrak algorithms
combine multiple data sources including the CPE inside of the customer premises to simply and accurately verify that a service problem is present, and if so, is truly unique to a single customer before a Tech is dispatched.
Customer calls with report of degraded broadband, video, and/or voice service.
Customer MAC entered into XPERTrak.
If QoE is impacted neighbors are checked for similar impact.
Troubleshooting
Customer QoE is measured based on physical and service later metrics.
High confidence decision can now be made between single-customer issue, plant issue, or possible wifi/ no trouble found issue.
Root cause can often be remotely localized by PNM, Leakage overlay, or other methods – especially for multi-customer issues.
Home
More info
Business
5G
ONX
Home
MUX
NOC
HEADEND/
CENTRAL OFFICE
MDU
MDU
Small business
Small business
Home
Splitter
DSLAM
Splitter
DAA
NODE
(point F)
HUB
NOC
DAA Node
DATA CENTER
DATA CENTER
Remotely Control
ONX-220 from Outside
We want to minimize exposure between
customers and technicians, but there are times
when test gear must be connected inside of a home. In these cases your technicians can minimize exposure by remotely controlling their meters from outside using a mobile device while they work on external wiring issues. This gives them full access and control of their meter while only entering the home to connect and retrieve the instrument.
Service call requires an instrument
to be connected inside of the home for diagnostic purposes.
Technician enters home to quickly connect instrument.
Technician works to
address drop or
external wiring
issues while viewing/ controlling ONX-220
from their mobile device.
Service Installation/Activation
Technician establishes connection between ONX-220 and mobile device running Mobile Tech App via Bluetooth or Wifi.
When repair is complete technician remotely runs full OneExpert test on ONX-220 to close out the install.
Technician briefly reenters home to retrieve instrument, connect CPE.
More info
Business
Remote OLT
DWDM
DeMUX
MUX
NOC
MDU
Small business
Splitter
DSLAM
Splitter
DAA
NODE
HUB
Safely Ensure Drop/Home
Wiring Integrity from Outdoors
Upstream ingress has impacted subscriber services and OPEX budgets more than any other issue over the history of the HFC, and frequently the sources lie within the drop and home wiring. Pressure testing has been proven an effective tool for detecting and pinpointing these sources, and its use model has evolved as entry into homes has been restricted.
Pressurize drop and customer home or business from outside to ensure wiring integrity.
Disconnect drop at the tap and attach
HL Transmitter.
Walk the drop with the HL Receiver or ONX/DSP meter with HL option and antenna checking
for leaks.
Service Installation/Activation
Walk the perimeter of the home or business with receiver if possible. Even relatively small leaks will be detected outdoors.
If significant leaks detected note proximity to minimize time spent indoors if entry is possible to address.
Small business
Home
Home
Fix any leaks in the
drop system and verify integrity post-fix.
Connect transmitter to ground block or demark point for the home or business.
More info
Business
DWDM
DeMUX
MUX
NOC
Home
Small business
DAA
NODE
Hub/
Local Office
XPERTrak Remote Fault Localization
Maintenance tech’s frequently encounter people in the course of their work, especially in crowded urban environments. Remotely pinpointing the source of network issues enables dispatching to fix instead of multiple dispatches to find, minimizing opportunities for potentially risky interactions.
Trouble ticket is issued to maintenance
for outside plant issue.
XPERTrak Node Health Analyzer used to identify impacted subscribers relative to network elements.
PathTrak-based ingress data is checked if high upstream codeword errors detected to rule simple ingress in/out
as fault.
Repair/Troubleshooting
Upstream and downstream PNM
data is overlaid with Leakage, fiber, and plant map info to identify source
of issues.
PNM distance to fault, leak locations, and other inputs direct location for dispatch.
Once in the field technicians view
real-time analyzers for final find/fix
and verification
of effectiveness.
Headend/
Central Office
More info
Business
DWDM
DeMUX
NOC
Home
Small business
MUX
ONX
DAA
NODE
Hub/Local Office
Headend/
Central Office
XPERTrak Single-Person
Ingress Troubleshooting
Fixing ingress sources is difficult enough in normal times, but with work-from-home mandates leaving previously staffed facilities empty the challenge is magnified. Remote test and visibility capabilities like PathTrak Field View are critical to enabling technicians to work autonomously even when normal support staff are unavailable.
Technician is performing ingress remediation on nodes fed from a hub which is not staffed due to facility access restrictions.
Technician views combined spectrum on mobile phone in truck to confrim ingress is still present before exiting truck with ONX meter.
Technician tightens connector and sees ingress disappear on meter's local spectrum display.
Repair/Troubleshooting
Technician enters manhole to access amplifier to check spectrum with meter, cell service not available in manhole.
Technician views combined spectrum from hub on meter using Field View. Confirms fix addressed majority of ingress on the overall node.
Remote Test
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