☚ [[fair-bd:machines:sis100:technical_information:niche:niche#lenght_out_of_niche_toward_r-room | niche side]] ★

====== Estimation of cable length between niche and E-Room ======

Find here an estimation of distances between BPM-preamplifyier housing niches and related E-Room: {{ :fair-bd:machines:sis100:technical_information:niche:cable:laengen_nische_-e-raum_2_mit_details.xlsx | Length Estimation}}!

Base of estimation are files of cable [[fair-bd:organisation:buildings-and-infrastructure:pritschen:kabellaengen:fairlaengen:fairlaengen:2018:2018| length optimization prozess 2017 (files "Gestreckte Längen" Lph3)]],\\ to be found although at [[\\winfilesvH\B$group\1_FAIRGSI$docu\3_Buildings\K0923A_(T110)-SIS100_SIS300\Drawings_Plans\LPh3 ES (Elektroanlagen)\Trassenführung]]\\ There are although younger plans for cable traces, but those are without baemline parts drawn within: this lack does not give access to accurate length estimation ([[\\winfilesvH\B$Group\1_FAIRGSI$docu\3_Buildings\K0923A_(T110)-SIS100_SIS300\Drawings_Plans\LPh5 ES (Elektroanlagen)]])!

<color red>** All 84x 4 BPM-cables must have the same length of [ 100m ] by definition to ensure same signal runtime for each BPM and plate!**</color>\\ This decision is made by P. Kowina at 13.3.2019.

{{:fair-bd:machines:sis100:technical_information:niche:cable:laengen_nische-e-room.png?direct&1200|Längen}} {{:fair-bd:machines:sis100:technical_information:niche:cable:laengen_nische-e-room_cps.png?direct&50|}}

Oportunity to decrease length of some extrem length in cells 1S38 und 1S58 by redirect from straight E-Rooms to curve E-rooms for those cells is rejected for similarity reasons by P. Kowina.