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No specification found for this NSN.
The secure digital voice terminal (sdvt) is a four-wire non-secure/secure telephone set that transmits and receives digital voice and loop signaling information at 16 or 32 kb/s rates. the sdvt is a secure telephone that has embedded exportable encryption module capability that supports non-secure and secure (non-encrypted/encrytped) operations. the sdvt interfaces from up to 4 km away from the circuit switch to telegraph, facsimile, or digital voice by a 4-wire interface. the sdvt supports one active interface mode of operation at a time. the sdvt interfaces analog voice by the handset interface and to data devices by the rs-232 data port interface. the sdvt keyboard/keypad is used to enter address, precedance and other control information necessary for the sdvt user to establish a call.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity.
Represents items with no adp components
The item is specifically designed to be or selected as being nuclear hard (i.e., it will continue to perform its designed function in an environment created by a nuclear explosion). the item does not have other critical features.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.