TM  11-6625-3081-23 TM  11-6625-3081-23 1-13. DESCRIPTION OF TEST CONSOLE TEST BENCH 2A2 (cont) 1-13 a. GENERAL The  test  console  test  bench  consists  of  an  electrical  equipment  cabinet  and  the following  assemblies: Programmable digitizer 2A2A1 Matrix  switch  2A2A1O VHF cable entry panel 2A2A2 Multiprogrammer extender 2A2A11 Optical signal generator 2A2A3 Switch  controller  2A2A12 Test adapter panel 2A2A4 Analog to digital converter 2A2A13 Multiprogrammer   2A2A6 Cable entry panel 2A2A14 Electronics  drawer  2A2A7 Blower  2A2A15 Extender  2A2A8 Electrical-optical calibration kit b. ELECTRICAL  EQUIPMENT  CABINET (1) The electrical equipment steel cabinet consists of a 30 inch high floor standing rack bolted to a standard 68 inch high full size rack. The cabinet is centered  on  and  bolted  to  a  structured  steel  electrical  equipment  mounting  base. Located at the bottom of the full size rack is a blower assembly that forces air up and  around  the  electrical/electronic  chassis  assemblies  and  out  through  louvered  open- ings at the top of the cabinet. (2) Assemblies 2A2A1, A3, A6, A7, A8, A1O thru A13 are individual slide mounted rack assemblies. Assemblies 2A2A2, A4, A5, A14, and A15 are hard mounted to equipment mounting  channels. All  assemblies  except  2A2A11  thru  2A2A15  are  accessed  from  the front of the test console test bench. Two removable side panels are located on each side of the test console test bench. Before these panels can be removed, the dayside and/or nightside test benches will have to be moved. Cable  assemblies,  cable carriers,    cable mounting hardware,    equipment  rear  panel  controls  and  devices,  and ground  leads  are  accessed  by  pulling  open  or  removing  the  applicable  electronic  assem- bly. The  electrical  cables  that  mate  with  each  slide  mounted  electronic  assembly  are secured  to  spring  retracting  steel  cable  carriers. As the assembly is pulled out, the cable and carrier arm extend with the assembly. A chain attached to the cable carrier and the back panel of each electronic assembly, prevents putting tension on electrical cable connections. When  the  electronic  assembly  is  removed,  the  cable  carrier  and attaching  electrical  cable  assemblies  retract  to  the  rear. (3) Cable entry panel 2A2A14 provides power and signal distribution. Power input, routed from the electronic station AC control panel assembly, is 115v, 60 Hz single-phase. Power distribution within the test console test bench is routed by two plugmold  cable  assemblies. Eight  ground  terminal  bonding  positions  2A2E1  thru  2A2E8 provide  chassis  and  cabinet  grounding  against  shock  hazard. Length: 48.00 in Width: 23.31  in Height: 63.38  in Physical  Dimensions: Change 10 1-55