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eXmux® 3501M - IP Access Multiplexer

eXmux® 3501< - IP Access Multiplexer

eXmux® 3501M - IP Access Multiplexer

Engineered for mission critical infrastructures.

  • Provides module hot-swap capabilities for uninterrupted service while adding or repairing circuits
  • Communicates over Ethernet/IP or MPLS networks for current and future requirements
  • Protects critical data with zero-data-loss “Hitless Switching” for critical relay channel reliability
  • Incorporates an Advanced user interface and cyber security features meeting NERC CIP requirements

Learn more about the eXmux® 3501 IP Access Multiplexer




Protection System

The GARD Pro® Power Line Carrier system is built on our proven GARD 8000® hardware platform, but boasts a completely new, web-based user interface & Touch Screen Display (TSD) that make the unit easy to configure, commission, and monitor your system quickly and efficiently.

Learn more about the GARD Pro® PLC

RFL Introduces the New eXmux® 3501 Teleprotection System


The eXmux® 3501 Teleprotection System provides an integrated end-to-end teleprotection function in the eXmux® 3501 IP Access Multiplexer. The teleprotection system comprises of an eXmux® TPS Interface Unit and a 1 RU TPS I/O Box, providing a teleprotection channel over Ethernet/IP or MPLS network using TDM over IP. It is mid-span compatible with the IMUX 2000 T1/E1 multiplexer MTS Teleprotection system.

The eXmux® 3501 Teleprotection system provides 4 bidirectional transfer trip commands point-to-point between two peer units or between one unit and an IMUX 2000 MTS unit. The system allows the transport of two independent 4 function inputs/outputs; in addition to 2 controlling inputs logic and 2 outputs for alarming & status for each TPS I/O unit.

Download the eXmux® 3501 Teleprotection System Product Sheet

The GARD 8000® Teleprotection System is now available with SNMP V3 alarm reporting.

GARD 8000® Teleprotection Channel is now available with SNMP V2 Alarm reporting option for digital and analog systems.

The GARD 8000® Teleprotection channel can generate SNMP V2C traps in the event of an alarm condition. The alarm traps are programmable. The GARD 8000® has HMI Output bits which can be defined by the user to refer anything in the system logic. This includes alarms and trip inputs/outputs. By using the built in web interface, each HMI output can be assigned a text label by the user. If an alarm event occurs a trap will be generated and will include the version number (V2C Notification), the RFL OID and the "timestamp".

To learn more about this new option, contact RFL today.

Download the new GARD 8000® brochure

RFL Connect

Past CONNECT Course Archives

Download Videos

Online Training Courses In
Networking, Communications,
Protection & Cyber Security

Learn more

Utility industry and electric utility white papers by RFL providing communications and protection solutions to today's challenges, such as migrating data from leased lines.

Helping Utilities Move Forward in IP Migration

Multipoint-to-Multipoint Protective Relaying Signaling Using Digital Communications and Built-In Logic

Read our Electric Utility White Papers

Find RFL and Hubbell at an upcoming trade show in your area!

See Upcoming Trade Shows

RFL offers a 24-hour emergency service program that provides specialized service anytime, anywhere in the world. All of RFL's products are engineered and manufactured to the highest-quality standards and are supported by a team of highly trained customer service engineers.

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