Plus-X I/O Devices


The Plus-X line of distributed I/O devices allows ARC Plus users to purchase just what they need for their site without deploying excess capacity. The wide variety of channel configurations and special functions available make it possible to tailor the ARC Plus system to meet the unique requirements of each site, from single transmitter installations to large multi-station facilities.

Parallel I/O

Traditional parallel I/O enables monitoring of logic signals, status contacts and analog voltage levels found on a variety of transmitter site equipment and provides relay outputs for device control. Plus-X devices may be installed close to individual pieces of controlled equipment, eliminating long runs of parallel wiring.

Transmitter Interfaces

The PlusConnect™ line of transmitter interfaces make connecting to today’s most popular transmitters easy and budget-friendly. PlusConnect interfaces allow a direct, digital connection to many popular models of transmitters without requiring parallel wiring.

Environmental Monitoring

The Plus-X EM series monitors temperature, humidity, flood/leak, and many other conditions that can cause serious problems. Email, SMS and SNMP notifications ensure that responsible personnel can respond quickly and effectively.

Legacy System Upgrades

Plus-X Adapters allow you to modernize your legacy remote control systems without rewiring.

Special Functions

Specialized functions such as VSWR fault detection and response and remote AC power switching provide enhanced site operational and control.   

Plus-X IIUPlus-X ICRUPlus-X 300Plus-X 600Plus-X Dual IP-8 Adapter
Number of metering inputs160up to 8**88 or 16***
Number of status inputsup to 32*0up to 8**168 or 16***
Number of Form-C relays08 pairs86 pairs8 or 16 pairs***

* 16 dedicated status inputs, and 16 metering or status inputs

** 8 inputs, selectable as metering or status

*** The Plus-X Dual IP-8 Adapter uses the metering, status and relay channels from up to two existing ARC-16 IP-8s.


Plus-X Devices

Plus-X IIU

Expandable Metering and Status for the ARC Plus

Each Plus-X Integrated Input Unit (Plus-X IIU) connects 16 meter and up to 32* status channels to the ARC Plus. Metering channels can be configured for different voltage ranges, and may optionally be used as status inputs. Connect up to 16 Plus-X Integrated Input Units to one ARC Plus for 256 input channels.

Economically Expand Remote Control

Add Plus-X Integrated Input Units anywhere IP access is available. Use existing ARC Plus units to monitor and control additional remote sites.

*Includes 16 dedicated status inputs. Meter channels may be used as status inputs for a total of 32 status channels.

Plus-X ICRU

Command Channels for the ARC Plus Grow with your Needs

Each Plus-X Integrated Command Relay Unit (Plus-X ICRU) facilitates the connection of 16 relays to the ARC Plus. Relays can be used individually, or in raise/lower pairs, and can be configured as momentary or latching. Connect up to 32 units to one ARC Plus for 256 channels.

Economically Expand Remote Control

Add Plus-X Integrated Command Relay Units anywhere IP access is available. Use existing ARC Plus units to monitor and control additional remote sites.

Plus-X 300

Now it’s easier than ever to monitor and control equipment in all areas of the facility using simple, Ethernet-based connectivity. The Plus-X 300 eight-channel I/O interface adds eight metering or status inputs and eight relay outputs to any new or existing ARC Plus remote control system, providing a versatile, cost-effective expansion path.

Thanks to IP connectivity between the Plus-X 300 and the ARC Plus, installation is straightforward. Sample voltages connect directly to the Plus-X 300 using the included Phoenix-type connectors. There is no need for external breakout panels.

Plus-X 600

Versatile I/O

The Plus-X 600 is designed to be a versatile I/O solution, suitable for a wide range of applications. Its 1RU form factor allows maximum functionality in minimal space, with a cost effective combination of channels.

Easy Installation

Thanks to IP connectivity between the Plus-X 600 and the ARC Plus, installation is straightforward. Sample voltages connect directly to the Plus-X 600 using the included Phoenix-type connectors. There is no need for external breakout panels.

Affordable Expansion Options

The Plus-X 600 is part of the Plus-X family of ARC Plus Ethernet I/O devices. Expanding an ARC Plus system is easy and affordable. IP connectivity allows installation of additional units virtually anywhere, and the 256 channel capacity of the ARC Plus leaves plenty of room for future expansion.

PlusConnect TM

More Control. Less Wiring.

By combining the power of the ARC Plus with the convenience of a direct link to the transmitter, the PlusConnect allows broadcasters to manage the entire transmission plant, studio, and IT infrastructure on a single platform.

The PlusConnect provides a seamless link between the ARC Plus remote monitoring and control system and the transmitter, bringing hundreds of transmitter parameters* aboard the ARC Plus. A single serial or Ethernet connection to the transmitter reduces installation time and saves the expense of adding remote control capacity.

IP Architecture

IP connectivity between the ARC Plus and the PlusConnect eliminates the need to run new wires or cable from the transmitter to the remote control. Just add the PlusConnect to your network. ARC Plus communications are secure thanks to an encrypted digital signature sent with each packet.

Optimized Software Display

With an AutoPilot® Plus operator interface customized for each supported transmitter, managing the transmitter via software is easier than ever. Essential parameters are integrated in a streamlined custom view – no layout or design work needed. Adding more channels is easy with the drag-and-drop custom view editor.

*Actual number of parameters depends on the transmitter model.

Plus-X EM

Environmental Monitoring for the ARC Plus Remote Control

The Plus-X EM series brings extensive environmental monitoring and control capabilities to the ARC Plus remote control system.  Plus-X EM units can be located where needed in transmitter sites and rack rooms with convenient Ethernet / IP connectivity to the ARC Plus control unit.

Protect your Equipment and Data

Environmental problems at remote sites can cause costly downtime, damage expensive equipment, and even lead to loss of mission-critical data. HVAC equipment failure, power outages, and simple human error can cause catastrophic problems—especially when running unattended. Broadcast equipment requires comprehensive monitoring of environmental conditions to detect a problem as early as possible.

The Plus-X EM series monitors temperature, humidity, flood/leak, and many other conditions that can cause serious problems. Email, SMS and SNMP notifications ensure that responsible personnel can respond quickly and effectively.

Watch for Early Warning Signs

Not all problems happen suddenly. A change in how equipment behaves over time may be an early warning sign of a serious problem. A gradual rise in temperature or a change in sound level may be evidence of impending equipment failure. Onboard charting allows you to watch for changes in environmental conditions over time, preventing a problem from becoming a crisis.

A Monitoring Solution that Grows with your Needs

The Plus-X EM series’ unique modular design allows you to add capacity and features as you need them. Easily add new sensors as you add equipment, and take advantage of new functionality when you need it.

Plus-X EM 64 can support up to a total of 64 sensors, including 3 built-in sensors, 8 switch inputs connected to the real panel connector, 8 powered switch inputs and up to 45 digital sensors connected in daisy-chain configuration to the front panel sensor ports. One or two optional modules can be installed in the front of the Plus-X 64 unit to simplify daisy-chain wiring and/or to increase the number of switch inputs or powered switch inputs, up to an overall total of 64 sensors.

Plus-X 32 is a convenient package providing up to a total of 32 sensors including 3 built-in sensors, 8 powered switch inputs and up to 21 digital sensors connected in daisy-chain configuration to the front panel sensor ports.

See Plus-X EM in action: Check out our live Climate Guard demo. (Username: demo, Password: demo)

Plus-X AC-8

Remote Outlet Control Means Fewer Site Visits

The Plus-X AC-8 remote outlet controller makes it easy to manage power to 120V equipment at remote locations. Connect the Plus-X AC-8 to PCs, servers and other IT or broadcast equipment, and save wasted drive time when remote gear needs a power cycle.

Connect the Plus-X AC-8 to the Burk ARC Plus, interface it with an existing transmitter remote control, or operate it in web-only mode. No matter what you choose, the Plus-X AC-8 offers unmatched versatility.

Plus-X Dual IP-8 Adapter

Upgrade your ARC-16 without Rewiring

Upgrading legacy ARC-16 systems is faster and more affordable than ever. The Plus-X Dual IP-8 Adapter connects to up to two ARC-16 IP-8s using the same DB37 cables as the ARC-16. Not a single channel needs to be rewired to upgrade to the ARC Plus Touch, saving hours of work.

Cost Effective Upgrade

The Plus-X Dual IP-8 Adapter includes all the I/O needed for up to 16 channels, eliminating the need for additional input and output units.

With its 256 channel capacity and Ethernet I/O architecture, a single ARC Plus can replace multiple ARC-16 systems. Simply install a Plus-X Dual IP-8 Adapter at each site.

Plus-X GSC Adapter

Upgrade your GSC or VRC without Rewiring

Upgrading legacy GSC and VRC systems is faster and more affordable than ever. The Plus-X GSC Adapter connects to up to two GSC/VRC wiring interfaces and command relays using the same DB37 cables as the legacy remote control. Not a single channel needs to be rewired to upgrade to the ARC Plus Touch, saving hours of work.


Cost Effective Upgrade

The Plus-X GSC Adapter includes all the I/O needed for up to 16 channels, eliminating the need for additional input and output units.

With its 256 channel capacity and Ethernet I/O architecture, a single ARC Plus can replace multiple GSC300 or VRC2500 systems. Simply install a Plus-X GSC Adapter at each site.

Plus-X VSWR

Protect your RF Plant Investment

Plus-X VSWR protects your investment in RF combiners, transmission lines and antenna systems by fast activation of transmitter interlocks. The system monitors forward and reflected power on up to four transmission lines, continuously updating VSWR calculations, and takes immediate action when user-defined thresholds are exceeded.

Integrate with ARC Plus or Arcturus

Plus-X VSWR combines with other Plus-X devices in your system for comprehensive monitoring and control of your entire operation.

Fault Tolerant Design

Redundant relay outputs assure reliable interlock operation. Three strike logic provides quick recovery from transient events, maximizing uptime while keeping the system safe.

Fully Autonomous Operation

Even if the connection to the remote control is lost, Plus-X VSWR continues to operate.