NSN CM-77A/USM

A device utilized in a digital system for transferring data from several storage devices operating at relatively low transfer rates to one storage device operating at a high transfer rate in such a manner that the high speed device is not obliged to wait for the low speed units. Excludes:micircircuit (1), (as modified).

rectangular or square basic shape style, 70-12-01 entry date, 115.0 minimum single voltage external ac operating voltage in volts, not rated average life measurement, electron tube circuit construction type.

NSN 5985-00-080-7204 Datasheet

(NSN) National Stock Number

5985-00-080-7204

(FSG) Federal Supply Group

59 - Electrical and Electronic Equipment Components

(FSC) Federal Supply Classification

5985 - Related Equipment, Waveguides and Antennas

(NIIN) National Item Identification Number

00-080-7204

Requires Demilitarization

Yes

(INC) Item Name Code

00329

Date

Tue, Jan 1, 1963

Average Life Measurement

not rated

Basic Shape Style

rectangular or square

Circuit Construction Type

electron tube

Entry Date

70-12-01

External Ac Operating Voltage In Volts

115.0 minimum single voltage

External Ac Operating Voltage In Volts

230.0 maximum single voltage

Frequency Per Channel

10.0 megahertz minimum operating channel

Frequency Per Channel

12.4 gigahertz maximum operating channel

Functional Classification

aa-6.3

Functional Description

extends frequency measurement range of an/usm-26 & an/usm-207a into microwave range; along w/ an/usm-26 or -207a can measure frequencies up to 12.4 ghz,or w/ an external mixer 1-18 ghz; can be used w/out a frequency counter to measure frequencies below 4 ghz w/in about porm 0.5 pct; frequency is determined by zero-beating the unknown signal w/ a harmonic of an extremely stable signal generated w/in & to measure cm-77a fundamental frequency on a counter; multiplying counter readout by harmonic causing the zero-beat gives input frequency; harmonic no. is determined from previous knowledge of input frequency or by computation; zer/-beat is displayed on internal oscilloscope

Inclosure Type

encased

Installation Design

top of cabinet/counter

Phase

single

Operating Ac Frequency In Hertz

1000.0 maximum single voltage

Operating Ac Frequency In Hertz

50.0 minimum single voltage

Overall Height

12.500 inches nominal

Overall Length

20.750 inches nominal

Overall Width

15.250 inches nominal

Reference Data And Literature

dept of army publications: tb9-6625-336-50,19 nov 64; tm11-6625-493-15 w/ changes 1 & 2,29 sep 64; tm 11-6625-493-20p; tm11-6625-493-45p,19 oct 64

Relationship To Similar Equipment

interchangeable w/ 6625009739267 & 6625007355167; similar to cm-77/usm

Type/Model Designation

cm-77a/usm

Identification

Demilitarization Code

C - "usml or ccl military items - demil required. Remove and demilitarize installed key point(s) items as demil code "d". (note 4)."

Precious Metals Indicator

A - Item does not contain precious metal.

Hazardous Metals Indicator

P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

Pseudo Item Name Code

0000329

Cross Reference

CAGE Codes

80058

Joint Electronics Type Designation System

Military standards and standards organizations (ex:stanags,milspecs,defstans)

80050

Boustead Electric and Mfg Co

U.s./canadian manufacturers

Freight Information

Air Commodity

HZ -

Air Dimension

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Less than Carload Rating

G - 125.0

National Motor Freight Class Rating

W - Rating variable

Special Handling

9 - Other or no special handling required (sh)

Type of Cargo

3 - Electrostatic sensitive device (esd)

Uniform Freight Classification Item Number

34580

Water Commodity

738 - Computing equipment, computer components, and circuit cards

National Motor Freight Classification Item Number

061700

Questions & Answers

1. What is the FSCG of the NSN 5985-00-080-7204?

   The FSCG of the NSN 5985-00-080-7204 is 5985

2. Does NSN 5985-00-080-7204 require demilitarization?

   "usml or ccl military items - demil required. Remove and demilitarize installed key point(s) items as demil code "d". (note 4)."

3. Does NSN 5985-00-080-7204 contain precious materials?

   Item does not contain precious metal.

4. Does NSN 5985-00-080-7204 contain hazardous materials?

   Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

5. When the NSN 5985-00-080-7204 was assigned to the Federal Catalog?

   It was assigned 63 years ago, on Tue, Jan 1, 1963