1-20. SYSTEM FUNCTIONAL DESCRIPTION (cont)
(c) The programmable digitizer transmits a system clock signal to the video
signal generator (VSG) in the electronics drawer assembly 2A2A7.
(2) VHF Cable Entry Panel 2A2A2.
The VHF cable entry panel 2A2A2 contains 15 BNC
Only three are used.
One (J1) is connected by coaxial cable to the
radiometer assembly 2A1A2A3, and two (J2, J3) are connected to the video signal gener-
ator in the electronics drawer assembly 2A2A7.
These connectors are used during test
to connect TPS or test instrument cables.
(3) Optical Signal Generator 2A2A3.
The optical signal generator provides the
optical stimuli needed to test and evaluate performance characteristics of the
electro-optical multiplexer and TV sensor UUTs.
Three photo-quartzline lamps provide
the stimulus which is modified by filters and targets and routed to two optical outlet
(4) Test Adapter Panel Assembly 2A2A4.
The test adapter panel assembly 2A2A4
contains four connectors, a relay assembly, and a terminal block.
(a) Augmentation programmable interface connection (APIC) connector J1
connects 120 output lines from the matrix switch assembly 2A2A1O to the major test
(b) Dedicated interface unit (DIU) connector J6 connects lines from the
matrix switch assembly 2A2A1O, electronics drawer assembly 2A2A7, and relay assembly
2A2A4A1 to external equipment.
(c) Connector J2 connects +28 vdc (supplied to connector J6 from an external
source) to the external CID camera and external light. The voltage is routed from
connector J6, through relay assembly 2A2A4A1 contacts to connector J2. Relay assembly
2A2A4A1 is program controlled.
(d) Connector J3 supplies 115 vac to external devices. The 115 vac is
supplied by facility power and controlled by the AC control panel assembly 1A5.
(e) Relay assembly 2A2A4A1 is program controlled and contains 12 relays.
Four of these relays are not wired.
(6) Multiprogrammer Assembly 2A2A6 and Multiprogrammer Extender Assembly 2A2A11.
(a) The multiprogrammer assembly is the master control unit for the multi-
The multiprogrammer extender assembly increases the system input/