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TL1 & ASCII Alarm Monitoring Case Study for Telecom: Startec Global Communications

How an international long-distance carrier consolidated mixed-protocol network alarms into a single NOC view.

T/mon Diagram
Startec's T/Mon manages alarms sent via ASCII text and TL1 protocol (also ASCII-text-based). It also collects DCP alarms from Startec's NetGuardian RTUs. NetGuardians can alternatively report via SNMP to any SNMP manager.

FieldDetail
IndustryInternational Telecommunications
Company TypeLong-distance carrier and ISP
Geography / CoverageMultiple sites across the US and Canada
Primary ChallengeMonitoring mixed ASCII/TL1 alarms across diverse gear
Solution DeployedT/Mon master station + NetGuardian RTUs
Key ResultUnified alarm visibility across all network equipment
Products UsedT/Mon, NetGuardian 216T, NetGuardian 832A

About Startec Global Communications

Founded in 1989, Startec Global Communications provides telephone, internet, and communications services to ethnic businesses and consumers across the United States. The company also works with international long-distance carriers and ISPs serving the world's emerging economies, operating sites across the US and into Canada.

Monitoring a Mixed-Protocol Network

Startec's network includes a Sonus softswitch, GSP switch, DACS units, and fiber muxes, all generating alarms via ASCII text and TL1 protocol. Relying on operators to watch those text streams was unreliable and wasteful - any significant traffic volume makes it easy to miss critical alarms. They also needed environmental monitoring at several sites, which their existing gear didn't support.

  • ASCII text and TL1 alarms from multiple gear types
  • High risk of missed alarms with manual operator monitoring
  • No built-in environmental monitoring at remote sites
"We have a softswitch, a GSP switch, DACSes and Fiber muxes. We're running both TDM & VoIP for the domestic and international calls that we're terminating." - Walid Karim, NOC Manager, Startec Global Communications

What DPS Telecom Provided

After evaluating their options, Startec selected a T/Mon master station to collect alarms from their Sonus softswitch, GSP switch, DACS, and TDAX gear. T/Mon handles both ASCII text and TL1 protocol natively, replacing manual alarm watching with automated, centralized collection. For environmental monitoring, they added NetGuardian RTUs that report back to the T/Mon master.

Products & Services Deployed

The T/Mon master manages alarms from all of Startec's switching gear via ASCII text and TL1 protocol. NetGuardians report environmental data back to T/Mon via DCP, but can alternatively report via SNMP to any standard SNMP manager.

Centralized Alarm Visibility

With T/Mon in place, Startec's NOC has a single point of visibility for alarms across every part of the network - GSP switch, softswitch, DACS, and fiber muxes alike. Technicians no longer need to watch ASCII text streams manually. Any circuit outage or equipment alarm surfaces immediately, regardless of which gear type generated it.

OutcomeDetail
Alarm Sources ConsolidatedSoftswitch, GSP, DACS, and fiber muxes in one system
Environmental MonitoringTemperature and humidity tracked at multiple sites
Protocol CoverageASCII text and TL1 alarms collected natively
"Any time circuits go down, we'll see those alarms. Whether they are GSP alarms, Soft switch alarms DACS or Fiber mux alarms." - Walid Karim, NOC Manager, Startec Global Communications

What This Deployment Demonstrates

TakeawayDetail
Multi-Protocol SupportT/Mon collects ASCII and TL1 alarms from mixed gear without custom integration work.
Environmental MonitoringNetGuardian RTUs fill monitoring gaps that existing network equipment can't address.
Unified NOC VisibilityAll alarm types - switching, softswitch, and environmental - are managed from one platform.

Products Used in This Deployment

ProductDescription
T/Mon Master StationMultiprotocol alarm master with native ASCII, TL1, and SNMP support.
NetGuardian 216 G3Remote telemetry unit for environmental and alarm monitoring at remote sites.
NetGuardian 832AHigh-capacity RTU for collecting and reporting alarms from remote network equipment.

Questions About Telecom Network Monitoring

Can T/Mon collect alarms from TL1-based DACS equipment?

Yes. T/Mon natively supports TL1, which is an ASCII text-based protocol used by DACS, digital switches, and other telecom gear. It collects these alarms alongside SNMP and other protocol outputs, so your NOC gets a unified view without requiring operators to manually monitor separate text streams. This is exactly the setup Startec deployed across their US and Canada sites.

How do NetGuardian RTUs handle environmental monitoring?

NetGuardian RTUs monitor conditions like temperature and humidity at remote sites, then report back to a central T/Mon master station via DCP. They can also report via SNMP to any third-party SNMP manager, which gives you flexibility if your organization already has an existing management platform in place.

What types of telecom equipment can T/Mon monitor?

T/Mon supports 30+ protocols, so it can collect alarms from a wide range of telecom gear - including softswitches, GSP switches, DACS, fiber muxes, and legacy TDM equipment. If your gear outputs alarms via SNMP, ASCII text, TL1, DNP3, Modbus, or other common protocols, T/Mon can handle it. DPS also develops support for new protocols when a customer's requirements call for it.

Facing a Similar Monitoring Challenge?

Whether you're running a mixed TDM/VoIP network or trying to unify alarms from different gear types, DPS Telecom can help you find the right approach.

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