DTIC ADA042467: AN-TSQ-84 Upgraded Components.Report as inadecuate




DTIC ADA042467: AN-TSQ-84 Upgraded Components. - Download this document for free, or read online. Document in PDF available to download.

Download or read this book online for free in PDF: DTIC ADA042467: AN-TSQ-84 Upgraded Components.
This final technical report on the AN-TSQ-84A upgraded components provides a physical and functional description of the equipment as well as a description of the software program supplied for the ROLM 1602 computer. Also included is a description of the environmental tests that the equipment was subjected to and recommendations for future changes-a

Author: Defense Technical Information Center

Source: https://archive.org/


Teaser



Upon receiving a valid command word from the computer, the logic circuits in the Test Select Panel generate a -connect- signal to the Signal Matrix or LCE Matrix, provided that none of the equipment select switches on the Test Select Panel are in a -break- condition. If a break condition exists (a test panel switch is positioned to break and terminate the send or receive line) , the logic will prevent actuation of the matrix and a lamp will light to inform the operator that the panel is in the break mode.
The operator must then reposition the panel switches and the logic will automatically reset itself, allowing the matrix to access the selected line for test.
Initially, connection to the line under test is made on a bridging basis for monitoring; the VF line remains uninterrupted between Switchboard and Mux.
Subsequently, the operator may break and terminate the send or receive line and insert test equipment.
The Test Select Panel switching circuits automatically insert an appropriate termination when a line is broken. Certain abnormal conditions that may occur in the matrix are sensed by monitoring circuits in the Test Select Panel logic.
If these abnormalities occur, the matrix is automatically prevented from making the connection and a lamp on the Test Select Panel lights to inform the operator of a fault (short-circuit condition) or a no-connect condition (insufficient current to operate the relay matrix).
An audible alarm, which can be shut off by the operator, accompanies the lighting of panel lamps for the occurrence of a fault, no-connect, or break condition. - 19 HB-01-16 Connections between the Oscilloscope or Telephone Test Set and the circuit under test are made via jumper cables to connectors on the Test Select Panel.
The Speaker Amplifier monitoring circuit is part of the Test Select Panel; the associated loudspeaker is mounted remotely (in the front panel of the Power Supply Assembly).
This audible monitoring capability is contro...





Related documents