BASE LEVEL COMMUNICATIONS FUNDAMENTALS (US 305) Flashcards
DSN?
Defense Switch Network
telecommunications system that provides end to end command use and dedicated telephone service, voice band data, and dial up VTC for C2 and non C2 DoD authorized users in accordance with national security directives.
Two types of Phone Circuits?
DS0 - a voice grade channel of 64Kbps.
DS1 - a voice grade channel of 1.544Mbps. It takes 24 DS0 to make one DS1
Trunk?
A Trunk is a communication line between two switching systems.
Two types of Trunks?
Trunk E-1 - the European equivalent of the North American T-1 it carries information at the rate of 2.048Mbps. It has a total of 32 channels, 30 for voice and data, one channel for signaling, and one channel for framing and maintenance.
Trunk T-1 - the standard transmission in North America that carries information at the rate of 1.544Mbps. There are two types of T-1s. One is your standard that uses 24 channels for 24 separate phone lines. The other is called T-1 PRI and it uses 23 channels for voice and one for signaling (Caller ID).
Which phone switch does Capo use?
MFS (Multifunctional Switch) Nortel SL-100
What phone switch does Gricignano use?
SA (Stand-alone switch) Nortel SL-100
What phone switch does Gaeta use?
Tandem switch Nortel CS1000
What phone switch does Bagnoli (JFC) use?
AVAYA Definity switch
Two types of emergency power used by the BCO?
Generators – emergency power system provides the
necessary A/C to the rectifiers for extended power outages.
Batteries- which will last for 6 to 8 hours if fully charged
POT?
Plain old telephone
voice-grade analog telephone service that remains the basic form of residential and small business service connection to the telephone network in most parts of the world. POTS provides limited features, low bandwidth it provides greater reliability than other telephony system.
STU-III?
The Secure Telephone Unit -
Third Generation (STU-III) is a low-cost, user-friendly, secure telephone device. The terminals are designed to operate reliably, with high voice quality, as both ordinary telephones and secure instruments over the dial-up public switch telephone network. STU-III operates in full-duplex over a single telephone circuit using echo canceling modem technology. STU-IIIs come equipped with 2.4 and 4.8 kbps code-excited linear prediction (CELP) secure voice. Secure data can be transmitted at speeds of 2.4, 4.8, and 9.6 kbps. Replaced by STE.
STE Telephone?
Secure Terminal Equipment (STE)/Office
-the successor to the STU-III. The STE program will improve shore secure voice communications as well as shipboard communications by changing out the analog STU-III products with digital-based STE products. The STE cryptographic engine is on a removable Fortezza Plus KRYPTON Personal Computer Memory Card International Association (PCMCIA) Card. Voice-
recognition quality secure voice communication.
Explain the function of Defense Red Switch Network (DRSN).
The DoD global senior level secure voice telephone and conferencing system. It provides secure command and control switches which offer high quality secure voice and conferencing capabilities to the senior decision maker and staff of the National Command Authorities (NCA), the Commanders in Chief (CINCs), Major Commands (MAJCOMs), other Government departments and agencies, and Allies.
Describe the components of the DRSN system.
IST-40 40 (Integrated Services Telephones) - a 40 line key telephone with a built in isolator that can operate with both a RED and BLACK switch.
KY-68 - a secure field phone used for encrypting/decrypting voice traffic and provide secure digitized data.
RSU-1 Switch (Remote Switch Unit) - a digital switching system which is deployed at a remote point from a host digital switch.
Explain the function of Voice Over Secure Internet Protocol (VOSIP).
VoSIP is VoIP technology over the SIPRNet. To allow secure connections through packet switching.
