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Secure Telephone Unit

NSA certified Type-1 security to any standard analog telephone, personal computer, or secure fax machine. The toll quality secure voice as well as secure data communications using an integral V.90 capable modem. FNBDT (Future Narrow Band Digital Terminals) signaling ensures interoperability with STE terminals and other FNBDT devices that have received NSA Type-1 certification. Users can connect a STU-III in conjunction with an OMNI™ to support FNBDT voice and data calls as well as STU-III voice and data calls. This enables legacy interoperability with a STU-III, while at the same time affording the user improved voice quality and faster data rates when the OMNI™ interoperates with other FNBDT devices.

STU APPLICATIONS
  • Secure Voice over PSTN
  • Secure Voice Conferencing Client
  • Secure Modem Data over PSTN
  • Secure Remote Access Dial-up over PSTN
  • Secure Point-to-Point Data File Transfer
  • Secure Fax over PSTN (when used with a secure fax)

    FEATURES
  • NSA Type 1 Certified
  • FNBDT Interoperable
  • Secure Voice, Data and Fax over PSTN
  • High Quality Voice
  • V.90, V.34, V.32 Modem
  • Data Compression
  • Software Upgradable
  • US National, CCEB Countries, NATO Member Nations, and Coalition User Community Operation
  • Crypto Modern Upgradable

    PHYSICAL CHARACTERISTICS
  • Size : 5.1”W x 6.2” D x 1.9”H (12.9cm x 15.7cm x 4.8cm)
  • Weight : 1.5 lbs (0.7kg)

    PERFORMANCE CHARACTERISTICS

    Security Features:
  • Type I Embedded Cryptography:
    • SBU to Top Secret SCI
  • Secure Access Control System (SACS):
    • Access Control List (ACL)[100 Entries]
    • Maximum and Minimum Security Levels
  • Alphanumeric Display for Identification and Authentication
  • TEMPEST Compliant: NSTISSAM TEMPEST 1/92
  • Telephone Security: TSG-5
  • Key Management:
    • SDNS ReKey using FNBDT Signaling
    • 4 Level Key Set Support
    • National • CCEB • NATO • Coalition
  • Selectable Modes
    • Traditional
    • Autosecure on Receive
    • Unattended


    Interfaces:
  • Local EIA-232E/EIA-530/EIA-530A Selectable
    • Data (Async/Sync)
    • Fill
    • SW Download
    • Remote Control
    • “AT” Command Set


    Network RJ
  • 11 POTS
  • Data or Voice

    Local RJ
  • 11 POTS
  • Voice
  • External Power Adapter
  • Digital Network I/F: EIA-232E/EIA-530/EIA-530A Selectable

    Design Compliance:
  • TELECOM: US:FCC part 68, EU TBR-21
  • EMI/EMC: US:FCC part 15 Sub B, EU:EN55022/EN50082-1
  • Safety: UL, CUL, IEC60950, CB Scheme

    Power Requirements:
  • External Power Supply included
  • 91-252 VAC, 47-63 Hz (Autoranging)
  • Less than 5 Watts (Typical)

    Environmental:
  • Operating:
    • Temperature: 0°C to 40 °C
    • Rel Humidity: 10% to 90% Non-condensing
  • Storage:
    • Temperature: -20 °C to 60 °C


    SECURE DATA APPLICATION

    FNBDT Data Rates
  • Synchronous Secure Data Up to 28.8 Kbps
  • Asynchronous Secure Data Up to 33.6 Kbps
  • Asynchronous Secure Data Up to 56 Kbps when other end is attached to a secure digital link

    FNBDT Data Rates
  • Synchronous Secure Data Up to 15 Mbps
  • Asynchronous Secure Data Up to 128 Kbps
    Windows™ 95, 98, 2000, NT compatible

    SPECIAL FEATURES

    User Communities:
  • U.S. National
  • CCEB Countries
  • Canadian National
  • NATO Member Nations
  • UK National
  • Coalition User Communities
  • Australian National
  • New Zealand National

    Voice Encoders:
  • MELP @ 2.4Kbps
  • G.729D@ 6.4Kbps

    Unique Features:
  • Upgrade via Software Download
  • Remote Control via AT Command Set
  • Auto Answer/Unattended Operation
  • Auto Log Off
  • Multi User PINs



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