Customer Solution: EMR system and medical device integration

By the end of this year, the Obama administration has set aggressive goals for hospitals to implement electronic medical records (EMR) that meet the “meaningful use” objectives requirements.

This creates the need for a software bridge between the patient bedside data to the network where the medical information will be stored in the patient’s EMR.  This storage of medical information in the EMR allows medical practitioners to observe trends in the monitoring data over periods of time.

One medical management company has integrated Comtrol’s DeviceMaster® RTS into their software program process creating a seamless data transfer.  This software program gives hospitals a cost-effective way to collect, store, and synchronize data from a large list of medical devices.

The serial information collected from medical devices such as infant warmers and incubators, pulse oximetry devices, cerebral/somatic oximeters, light and sound meters, oxygen analyzers, etc. is gathered by Comtrol’s DeviceMaster RTS in each hospital room.  The DeviceMaster transmits this information seamlessly over the Ethernet network to the EMR software program where it is saved in the patient’s file.

To learn more about Comtrol’s DeviceMaster products, visit

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Tech Tips: RocketLinx VLAN web interface configuration

You can use the following steps to configure a VLAN with RocketLinx managed switches:

            • Create a VLAN
            • Add a port as a member of a VLAN
            • Configuring VLAN ports
            • Removing a VLAN

Note: Although the images in this document illustrate an ES7510-XT, this procedure is the same on all RocketLinx managed switches.

Creating a VLAN

Use the following steps to create a VLAN.

  1. Open your web browser, login, and access the VLAN Configuration page.
  2. Under the Static VLANsection:
    • Enter the desired VLAN ID (1-4094).
    • Enter the VLAN Name, which is a string that cannot include spaces. If you do not enter a VLAN name a VLAN name is assigned, for example, VLAN2.
    • Click Add.

    The new VLAN appears in the Static VLAN section after clicking the Add button as highlighted in the next image.

  3. Click the Apply button in the Static VLAN Configuration section to apply changes.  Make sure you Save the changes before exiting the web page if you want a permanent change.
  4. To add ports to the new VLANs, go to the next procedure.

Adding a Port as a Member to a VLAN

The Static VLAN Configuration table lists each VLAN with a drop-down box for each port on the switch.

Each drop-down box has the options of U for untagged, T for tagged, and a dashed line that denotes the port is not a member of that VLAN.

    • Untagged ports do not attach VLAN tags to packets.  Packets tagged for a particular VLAN are forwarded to all ports that are untagged members of that VLAN. Therefore any ports that are connected to devices that are not VLAN aware (almost all devices with the exception of networking devices such as switches and access points.)
    • Tagged ports attach VLAN tags to packets.  Tagged packets are forwarded to other VLAN aware devices (for example, switches). Switches that receive tagged packets for a VLAN forward those packets to any of its ports that are untagged members of that VLAN.

Use this procedure to add a port to a VLAN.

  1. If you have not done so, navigate to the VLAN Configuration page.
  2. To add an untagged port to a VLAN, set the drop-down box for that port and VLAN to U.  The following image shows Port 1 being added as an untagged port to the VLAN named Quad_2.
  3. Click the Apply button or optionally configure additional ports before clicking the Apply button.
  4. To add a tagged port to a VLAN, set the drop-down box for that port VLAN to T. The following image shows Port 2 being added as a tagged port to a VLAN named Quad_2.
  5. Click the Apply button or optionally configure additional ports before clicking the Apply button.
  6. Go to the next procedure to complete the process of setting up a VLAN.

Configure a Port for the VLAN

Use the following steps to configure a port for a VLAN.

  1. If necessary, open your web browser, login, and access the VLAN Port Configuration page.
  2. Double-click the existing PVID value for the port that you want to make a member, highlight the existing value and change the port PVID value to the VLAN.  This image shows adding Port 2 to the VLAN named Quad_2.
  3. Click the Apply button.
  4. Make sure that you Save the changes if you want the changes to be permanent.

Removing a VLAN

Use these steps to remove a VLAN.

  1. Open your web browser, login, and access the VLAN Configuration page.
  2. Highlight the VLAN in the Static VLAN Configuration table that you want to remove.

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Comtrol NOW | Issue 25


Comtrol NOW | Issue 25

DeviceMaster LT16


COMTROL launches DeviceMaster LT16 – secure device server for serial to Ethernet device communication

MINNEAPOLIS, Minnesota — March 20, 2014 — Comtrol Corporation, a leading manufacturer of industrial device connectivity products, today released the DeviceMaster LT16, a highly secure, compact device server for easy integration of serial communication devices into LAN, Internet, or cloud-based systems. 


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Worldwide Release: DeviceMaster LT16

Comtrol Launches DeviceMaster LT16 – secure device server for serial to Ethernet device communication

MINNEAPOLIS, Minnesota — March 20, 2014— Comtrol Corporation, a leading manufacturer of industrial device connectivity products, today released the DeviceMaster LT16, a highly secure, compact device server for easy integration of serial communication devices into LAN, Internet, or cloud-based systems.

The DeviceMaster LT16 easily links serial communication devices into existing Ethernet networks for remote diagnostics, management, and data collection. With a low-profile design, 16 serial ports, and Windows and Linux driver software, it is ideal for network-enabling barcode scanners, weigh scales, card readers, and POS equipment.

For those with existing systems, the DeviceMaster LT16 utilizes serial port wiring compatible with widely deployed device server models from Digi International Inc. This compatibility makes the LT16 a cost-effective replacement for legacy systems while maintaining investment in existing cabling and infrastructure.

For compliance with new and evolving data security practices, the DeviceMaster LT16 includes the strongest security and encryption features to support deployment in government, financial, and point-of-sale applications where strict privacy and data standards are crucial.

“With security breaches recently topping the news, now more than ever, companies are looking to modernize their networks and serial communication systems,” said Comtrol Director of Product Management David Boldt, “The DeviceMaster LT16 delivers the latest networking and data security features needed to immediately bring systems up to speed.”

The DeviceMaster LT16 is available in two models for installations requiring AC power or direct DC power systems. It includes Microsoft® certified driver software supporting the latest Windows operating systems and TTY drivers for popular Linux distributions. Comprehensive PortVision® DX network management software is included with each product for configuration, monitoring, and remote management within any network size.

About Comtrol Corporation

For more than 30 years, Comtrol Corporation has been a manufacturer and provider of quality networking and industrial data communication products, specializing in industrial Ethernet and device connectivity. With representation across North America, EMEA, Asia and Latin America, Comtrol sells RocketLinx® industrial grade Ethernet and Power over Ethernet switches, DeviceMaster® Ethernet device servers and gateways and RocketPort® multiport serial cards through distributors, resellers and integrators worldwide. Providing exceptional product and technical support, Comtrol establishes solutions for a wide range of security, energy, industrial automation and traffic and transportation applications. For more information, contact Comtrol Corporation at 800‐926‐6876 or visit

View PDF version of release


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Product Spotlight: RocketLinx Voltage Boost

RocketLinx | Industrial Ethernet Switches with Voltage Boost Technology

RocketLinx ES7106-VB 6-port Industrial unmanaged PoE Voltage Boost switch

  • Four (4) 10/100 PoE (IEEE 802.3af compliant) ports capable of providing up to 15.4Watts per port
  • Two (2) 10/100/1000 Gigabit Ethernet uplink ports
  • Port/power alarming via DIP switch configurations
  • LED status indicators for Ethernet link, power connection/alarm
  • Simple “plug-and-play” switch setup
  • QoS priority filtering
  • -25° to +60°C operating temperature range
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Save a Trip to Your Traffic Cabinet with Ping Reset Feature

RocketLinx Features – Ping Reset to Reboot ANY IP Device!

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Customer Solution: Studio upgrades for major US broadcast network

Whether a television network requires remote live camera feeds during a newscast or a radio station needs to incorporate satellite signal communication, reliable connectivity is essential for creation, control, and distribution of content.  The entire broadcast creation process from data-capture and compilation to editing and circulation requires reliable connectivity devices during multiple stages of production.

One major US broadcast television network used Comtrol’s RocketPort SMPTE products during recent large-scale studio upgrades to connect to various production system components.  The RocketPort cards provided the needed expansion of serial ports in the news studio to connect the following devices to the control system:

  • Video Server – computer that stores and queues programs for playback
  • Master Control Video Switcher – system that allows interchange between all video sources
  • Back-up Automation Control Switcher – standby system that is always up and ready to take over in the case of a failure
  • Graphic Insert Card – device that allows on-screen graphics to be shown
  • Parental Rating Injector – device that inserts the rating of a TV program
  • Commercial Ad Switcher – system that allows ads to be played
  • Automation Control Switcher – system that automates the broadcast and commercial process

Comtrol’s RocketPort SMPTE 8-Port uPCI controller card and the RocketPort 8-Port interface (or rack mount interface) were deployed in 28 studio locations across the US over the span of a year.  The RocketPort SMPTE products are designed specifically for the broadcast industry, are available in 2-port and 8-port densities, and support RS-422 serial communications at speeds up to 921 Kbps.


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Comtrol Security Solutions: Laser Technology

Laser scanners are very well suited for providing additional levels of  security in areas that are deemed critical such as, chemical facilities, food processing facilities, water treatment facilities, nuclear power plants, and power substations.

Scanners can be deployed in areas where complete protection against unauthorized access or entry is required. 

Laser scanners are also commonly used in other security, transportation and industrial applications such as:

      • Intrusion detection
      • Perimeter/Façade Security
      • Theft deterrence/retail
      • Access control
      • Camera tracking/profiling
      • Vehicle classification
      • Open-road tolling
      • Container port automation
      • Robotics
      • Vehicle separation in toll booths

Laser scanners function according to the principle of the pulse time-of-flight measurement. An invisible laser beam pulse is emitted in a fan shape with a high angular velocity as a measurement probe. If this hits an object, it is reflected and this is registered in the laser scanner’s receiver. The time take for the pulse to be sent and received again (light time-of-flight) is directly proportional to the distance between scanner and object. The exact position of the object is calculated from the sequence of pulses received. Violations of the monitoring areas are reported immediately through an output signal switching device.


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Access Control UL294/294B Regulations: Why Do They Matter?

UL294 is the standard of safety for Access Control System units that all access control systems must meet. UL294B is a newer standard, specifically for the use of Power over Ethernet (PoE) components used within access control systems where PoE is the primary power source.

Government and state regulations are moving toward required UL294 compliance. Comtrol’s RocketLinx ACS7106 is the first UL294B certified switch enabling confidence in deployment and integration within access control systems. 

The ACS7106 switch features four 10/100BASE-TX PoE Plus ports for providing power and data to remote PDs (Powered Devices) such as access card readers and IP surveillance cameras, and two 10/100/1000BASE-TX uplink ports that assure maximum throughput for high bandwidth applications.

The official site for the UL Standards states that:


1.1 These requirements apply to the construction, performance, and operation of systems intended to regulate or control:

a)    Entry into a protected area or a restricted area or

b)    Access to or the use of a device(s) by electrical, electronic or mechanical means.

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Product Spotlight: DeviceMaster RTS

Comtrol’s DeviceMaster RTS family of serial device servers enables browser-based remote port/device monitoring and configuration and provides an application software platform for local processing. It is designed for device networking versatility and offers software-selectable ports (RS-232/422/485) as well as the ability to host local embedded programs that are commonly used for intermediate serial data processing, protocol conversion, and other data-based applications. 

Ranging from 1-port models that provide single-device networking to 32-port models that offer high-density connections for specialized applications, the DeviceMaster RTS product is a network-attached solid-state embedded device server network serial port that delivers exceptional price, performance and reliability.

For more information or to compare different DeviceMaster RTS models, please contact a member of our sales team at or 763.957.6000, or visit our RTS Product Comparison Chart.


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