ICG NxtLink ICS-400 - Aviation


The ICG NxtLink Series ICS-400 Iridium Communications System incorporates four Iridium transceivers with an internal CTU, providing a standalone comprehensive communications system with connectivity to other aircraft systems. The ICS-400 permits connections of conventional telephony devices or legacy CTU systems through either standard 2-Wire “Tip and Ring” circuits, 4-Wire audio connections or via CEPT-E1 digital circuits.

CTU features include intercom calling, call transfer, conferencing, follow-on dialing and voice prompts. Designed into a 4 MCU Line Replaceable Unit (LRU), the device can be installed on any size of aircraft as the sole communications facility or as an additional/restorative communications system.

The ICS-400 also provides ARINC 429 connections and a dedicated Short Burst Data (SBD) modem for ACARS services.

The device is simple to operate offering standard dialing conventions and PABX operations with familiar call progress tones. It is the ideal solution for aircraft requiring up to 10 telephony connections and seamless global communications services without the inconveniences of hand-offs or no-service areas.

Technical Specifications & Features

    • Four Channels of Global Voice and Data
    • Dedicated ACARS/AFIS Services
    • 2400 BPS Data or 10 KBPS with Compression
    • Call Management Functions
    • Secure Voice Via STE Devices
    • Credit Card Calling Services
    • Internal Fax Support for Fax Over Iridium
    • Call Alert Signals and Custom Indicators
    • Digital Echo Cancellation and Configurable Audio Enhancements


  • Chassis: (L x W x H)
  • Standard 4MCU Rack
  • 15.68 in. x 5.04 in. x 7.6 in.
  • (39.83 cm x 12.8 cm x 19.3 cm)
  • Weight: (4MCU Rack) 10.5 lb (4.78 Kg)
  • Weight: (4MCU Tray) 2.00 lb (.909 Kg)
  • Prime Power: 28-volt DC
  • Power Consumption: 3 Amps @ 28-volt DC
  • LRU Connector: Arinc 600 Size 2
  • Temperature: -55°C to +70°C Storage, -40°C to +55°C Operating
  • Altitude: 55,000 ft.
  • Vibration: S2



  • PN # 400100-2 Base System
  • PN # 400101-2 w/ CEPT-E1
  • PN # 400102-2 w/ ACARS
  • PN # 400103-2 w/ ACARS & CEPT-E1



  • DO-160E Compliance
  • DO-178 Level D Compliant