GENERAL - TM-11-6625-3081-23-1

Electronic Station - TM-11-6625-3081-23-1_70

TM-11-6625-3081-23-1 Electronic Equipment Test Facility TADS/PNVS Augmentation Equipment Manual
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TM 11-6625-3081-23 1-10. DESCRIPTION OF ELECTRONIC STATION (cont) 1-10 a. GENERAL In general, the electronic station consists of a two-bay cabinet and the following rack mounted electrical/electronic assemblies: the b. Temperature control unit 1A1 (alternate: Control unit assembly 1A1) 488 controller power supply 1A2 Programmable power supply 1A3 DC power supply 1A4 AC control panel 1A5 Blower 1A6 Photomultiplier tube (PMT) controller 1A7 Extender 1A9 Disk/tape drive 1A1O Digital computer 1A11 Blower 1A12 Cable entry panel 1A13 Cable entry panel 1A14 Description of these items follow in reference designation order beginning with two-bay cabinet. TWO-BAY CABINET (1) The two-bay (steel) cabinet is centered on, and secured to, an electrical equipment steel base with four mounting bolts. Located at the bottom of each single equipment rack bay is a blower assembly that forces air up and around the electrical/ electronic chassis assemblies and out through louvered openings at the top of the cabinet. (2) Assemblies 1A1, 1A2, 1A3, 1A4, 1A9, 1A1O, and 1A11 are individual slide mounted rack assemblies. Assemblies 1A5, 1A6, 1A7, and 1A12 are mounted to equipment mounting channels. Cable assemblies, cable carriers, cable mounting hardware, circuit card assemblies (CCAs), equipment rear Panel controls and indicators, and ground leads are accessible from the rear of the cabinet through left or right cabinet doors. All of the slide mounted electronic assemblies are secured to rack mounting channels. Electrical cables that mate with each slide mounted electronic assembly are secured to retracting cable carriers. As the assembly is pulled out, the cable and carrier arm extend with the assembly. A chain, attached between the cable carrier and the back panel of each chassis assembly, prevents tension on electrical cable connections. When the slide mounted electronic assembly is removed, the cable carrier and cable assemblies retract to the rear of the cabinet. (3) Cable entry panels 1A13 and 1A14 located on the rear of the electronic station provide power and signal distribution. Input power is 115v, 60 Hz single-phase. Eight ground terminal bonding positions 1A1E1 thru 1A1E8 provide chassis and cabinet grounding against shock hazard. Change 9 1-11

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