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Commercial Gear Defines Army Communications Training
U.S. Army communicators training on new networking equipment literally are rewriting the schoolbooks as they prepare to replace legacy systems with new gear based largely on commercial technologies. Soldiers with the 51st Expeditionary Signal Battalion (ESB) at Fort Lewis, Washington, are blending knowledge of old technologies with familiar commercial systems as they complete an extensive training regiment before being deployed to Iraq.
The focal point is the set of new technologies that the communicators will use to link diverse units in Iraq. These include the Joint Network Node (JNN), Single Shelter Switch (SSS), command post nodes (CPNs) and new satellite terminal trailers (STTs). Instruction for each component varies with the newness of the technology and the advanced capabilities they bring to the force.
The JNN is a reliable system that largely runs itself, says Pfc. Marcus Egan, USA, 51st ESB JNN operator. He notes that an operator has little to do when the system is up and running. Nor does JNN require special modifications to plug in telephony or data systems.
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| A member of the 51st Expeditionary Signal Battalion works on new equipment in a van that is part of the battalion’s new networking technology. One component replaced an entire troposcatter van’s worth of gear, and soldiers are training to learn how that equipment changes the way they perform their mission. | Many soldiers say that the JNN equipment has expanded the network measurably compared to the legacy Mobile Subscriber Equipment, or MSE. Spc. Thomas Gillespie, USA, JNN team chief, relates that he worked on MSE equipment that required considerable amounts of extra gear for simple add-ons. JNN provides many of those features inherently in addition to new capabilities.
Recent JNN training lasted three months for these soldiers. Every day, 22 trainees would start up a new network to learn ways of setting up the gear and incorporating new equipment. Spc. Gillespie notes that familiarity with old equipment was an advantage in this case, especially with regard to troubleshooting. People who were knowledgeable about the new commercial equipment were able to catch on quickly.
Spc. Gillespie relates that some of the JNN instructors had been deployed to Iraq, and they were familiar with both MSE and JNN. Often they would receive calls from deployed soldiers asking for help troubleshooting equipment. After assisting the troops in Iraq, the instructors would ask them how the JNN was working in-country and how to improve the use of the gear.
About a dozen different versions of the JNN have been introduced into the Army, with each version benefiting from upgrades based on lessons learned and technology advances. In some iterations, elements that have not been used frequently have been replaced by components that offered more important capabilities.
Pfc. Egan previously deployed to Iraq with the 101st Airborne Division, and he recalls that his unit replaced MSE shelters with JNN equipment. That was the division’s first JNN deployment—it was one of the early recipients of the gear (SIGNAL Magazine, September 2005)—and he and other signal personnel had to determine which elements of JNN were equivalent to MSE capabilities.
One problem with the JNN is its long startup time. Pfc. Egan relates that it can take longer for the system to spool up and for users to have it up and running. Once you’re in, he says, you’re in, and use is pretty easy. With MSE, even after setup there were too many chances for problems to arise. This ease of operation translates into a smaller manpower footprint, notes Spc. Johanna Rodriguez, USA, JNN operator.
As new commercial capabilities become available, they will be incorporated into the JNN, Spc. Gillespie offers. The coming capabilities may feature more nonsecure/secret Internet protocol router network (NIPRNET/SIPRNET) drops, he suggests. Increased bandwidth may be next.
The SSS is the battalion’s large switch. It can act as a hub to hook up JNN, fiber, satellite and even troposcatter communications. It largely provides communications to echelons above corps, which requires support to many customers employing a host of different media—data, voice and video, for example. Sgt. Rickey Thomas, USA, 51st ESB SSS team chief, notes that it provides commercial-standard voice over Internet protocol (VoIP) links while also communicating with older MSE gear.
The improvement over the older MSE gear is substantial, recounts Spc. Robert V. Gomez, USA, SSS operator. “The sheer ability of SSS to process all communications is incredible,” he says. It provides the ability to connect with different infrastructures, including access to local telephony. This permits communications with a wider spectrum of personnel ranging from NATO allies to individuals operating on a local host. It also can permit videoconferencing.
Mobility is one key capability that the SSS will provide to the force in the field. Spc. Gomez says that soldiers are looking into wireless communications within the SSS. A wireless domain extends the logistical range of its links.
Spc. Jason Jacobs, USA, SSS operator, says that the SSS can communicate with “anything that is being thrown at it.” This includes additional new equipment as well as legacy gear. It also is more software-oriented, which helps give it greater versatility for interoperability and upgrading.
Soldiers in the field are not limited to line of sight in their communications connectivity. They will be able to range as far away as necessary while remaining connected to the same switch. They need not change switches if they change areas of responsibility, because they can maintain connectivity via satellite. This should speed up the flow of battle and mobility.
The SSS also allows for greater usage of computer networks, Sgt. Thomas indicates. Individual warfighters can use chat functions to communicate with others—potentially an entire platoon on computers being able to send information up to headquarters.
Training on the SSS takes about 10 weeks, Spc. Jacobs adds. All told, the full course on the SSS that the communicators took ran about six months. This comprised hands-on training complemented by classroom instruction.
Spc. Michael Melton, USA, SSS operator, relates that he had prior experience on SSS equipment. He tasked instructors with questions about potential situations that might arise, and in turn they added extra material in the course for all attendees. These add-ons included training with the JNN, he notes, and they probably will become permanent changes to the curriculum.
The class did run into some unexpected hurdles, according to Spc. Gomez. For example, when one piece of equipment did not work correctly, soldiers determined that it originally had been configured incorrectly by both the civilians and the trainees. After a full day of troubleshooting, the piece of equipment was pulled out and completely re-set, after which it worked perfectly. The gear had been named in its initial configuration, which gummed the process.
Sgt. Thomas relates that the next-generation switch is in the works, and the SSS should be able to be upgraded to that configuration to operate faster and to support more bandwidth. This upgrade can be achieved simply by replacing one piece of equipment in the shelter and adding new software.
The CPN replaces the traditional node center. It effectively serves as a network endpoint, observes Spc. Clinton Peterson, USA, CPN operator. Each company carries several CPNs based on their individual missions. And, CPNs do not require “pristine conditions” to function well.
It suffers less from interference, is simpler and is much easier to set up, notes Spc. Nicole Reese, USA, CPN operator. It provides better individual subscriber options with more control, and setup runs less risk of error. She notes that MSE tended to be hit-and-miss when it came to following proper setup procedure, while CPN setup is quicker and less complicated. Operators have more flexibility over permitting or limiting subscriber options. And, the CPN is much more interoperable with systems used by U.S. allies.
This new CPN also allows the subscriber to have more command and control over the actual network, explains Sgt. Curtiss Kluczinske, USA, 51st ESB CPN team chief. The CPN is more commercialized, which makes it more robust. The small unit also requires fewer personnel for setup and operation. Where MSE relied largely on line-of-sight links, the CPN allows more autonomous communications with subscribers, he adds. Fewer assets need to be allocated per subscriber, which permits accommodating more missions concurrently.
The soldiers effectively are getting a mobile office, explains Benjamin F. Hutchinson Jr., a contractor fielding site manager for Program Manager Warfighter Information Network–Tactical (WIN-T). It has a much greater reach-back capability than MSE. The new gear is compatible with legacy MSE equipment, which can be run off of this system.
“It will take a smarter, more skilled soldier now to operate this equipment, but we gain a lot more over the old technology,” he says.
In terms of training, most of the people who have worked on this equipment were exposed to it in the private sector, Sgt. Kluczinske points out. The training for CPN reflects this, as CPN operators largely do not need a top-to-bottom instruction session.
The system’s STTs are highly mobile and are towable by a high mobility multipurpose wheeled vehicle (HMMWV). They feature time division multiple access (TDMA) modems and offer higher bandwidth capabilities. All of the equipment is commercial, and it is equipped with a global positioning system (GPS), which enables a relatively easy 30-minute setup. Operators merely level the terminal, power it up in an arranged sequence and then program its parameters.
Operators can interface directly through a conventional laptop computer. Spc. Cedric S. Nicholson, USA, satellite communications operator/maintainer, explains that the operator need only input parameters, and the STT will deploy and search for a satellite on its own.
Its graphical user interface allows virtually anyone to operate it, observes Spc. Keith C. Spring, USA, satellite communications operator/maintainer. Many STT components share commonality with other newer systems, including the Phoenix. That ease of operation carries over into training.
Spc. Nicholson relates that training lasted roughly one week, but it took little more than a day to instruct someone on basic setup and installation. Troubleshooting takes longer to learn depending on the soldier’s experience on other gear. The first units were delivered to the battalion last autumn.
“If you know how to work a laptop and know how to go into a program and [search for] satellites at a specific location, the system will go straight there by itself,” explains Sgt. Artist T. Young, USA, senior satellite communications team chief. “All you have to do is flip the switches, turn it on, plug in where you want it to go look and hit enter.”
One surprise came about when programming the TDMA modem, allows Spc. Patrick Ramos, USA, satellite communications operator/maintainer. He offers that he has been accustomed to programming a modem from a front panel. But for this configuration, an operator uses Hyperterminal, which is a Unix-based interface. In some cases, a boot disk will load all the necessary parameters and frequencies.
The STT does not lend itself to appliqué upgrades. Sgt. Young points out that adding a new capability would require replacing an old one. Engineers could increase capabilities by carrying out a two-for-one replacement. Troubleshooting also would be easier if the STTs’ back panels were more accessible, he adds.
The terminal is one of the commercial systems with a warranty. Accordingly, the soldiers cannot perform detailed repairs. They must return a broken terminal to the contractor. This inhibits a soldier’s role as satellite operator/maintainer, Sgt. Young allows. |