text: Signal Support by Army Echelon, Core Competencies, Training, and the Army Network
  2-61. The expeditionary signal battalion supports Army units up to theater army, joint force land component
  commanders, or joint task force headquarters. It also manages tactical communications assets in the battalion
  through its suite of DODIN operations tools. The battalion headquarters provides these capabilities—
  * Staff planning and supervision of the battalion and any attached units.
  * Field maintenance support for the battalion headquarters.
  * COMSEC account management for the battalion.
  * Field maintenance of organic COMSEC equipment.
  Note. COMSEC repair authorities cannot be delegated. Typically, field maintenance of COMSEC
  is limited to preventive maintenance checks and services, inspection, detection, and correction of
  minor faults.
  Expeditionary Signal Company
  2-62. The expeditionary signal company headquarters provides staff planning and supervision of its signal
  platoons and any augmenting elements, personnel, or material assets. The expeditionary signal company
  provides communications support in theater primarily for echelons above corps Army units. The
  expeditionary signal company may also support other units without organic signal capabilities or augment a
  unit’s organic capabilities. The expeditionary signal company also provides—
  * Wideband and protected satellite communications transport.
  * Beyond line of sight troposcatter network transport.
  * High-throughput line of sight transmission.
  * Telephone switching services.
  * DODIN operations tools to support network management within the company.
  * Cable, wire, and fiber optic installation and maintenance.
  * Access to DISN voice, data, and video services.
  * Field maintenance support for organic communications-electronics, COMSEC, automotive,
  power generation, and environmental control equipment.
  Joint/Area Signal Company
  2-63. The joint/area signal company installs, operates, maintains, and secures large or medium command
  nodes to extend DISN services supporting Army and joint missions in a theater of operations. The company
  can also provide limited DISN services to support smaller command posts. This support includes line of sight
  and beyond line of sight network transport, network management, and cable and wire installation to provide
  garrison-quality data services to deployed users. The joint/area signal company primarily supports large
  headquarters command posts, such as a geographic combatant command, theater army, joint task force, or
  joint force land component command. The company can also support a limited number of battalion-sized
  command posts. This joint/area signal company provides—
  * Large command post support—DISN services.
  * High-throughput line of sight transmission.
  * Small command post support—limited DISN services.
  * DODIN operations tools to support network management within the company.
  * Troposcatter network transport to link large command posts, major headquarters, and signal nodes.
  * Wideband satellite communications transport.
  * Protected satellite communications connectivity between selected large and small node centers
  and remote command posts.
  * Cable and multiplexer assets to interconnect signal equipment.
  * Field maintenance and limited sustainment maintenance of organic communications-electronics
  and COMSEC equipment.