Installation of ITC Fiber Assemblies
Responsible: R.
Miller
Updated: July 13, 00
The assemblies come as a 'right' and 'left' pair. These labels refer to
the mounting position on the ITC end plate, looking from the ITC end with
the girder down (normal installation orientation). The labels end up on
the inside surfaces of the plates (facing each other).
The assemblies are packaged as shown in Figure
1. Open the polyethelyne storage bag at the connector end and
remove the twist tie that holds the bag to the aluminum plate. Slide
the bag off of the assembly while holding onto the optical cables.
Apply a temporary piece of tape to the WLS fibers just below the bottom
edge of the profiles to keep the profiles from sliding off while the assembly
is being mounted. Leave the cardboard splint attached to the plate
temporarily to provide strain relief for the fibers where they exit the
plate.
Attach two of the support panels to the ITC end of the EB module as shown
in Figure
2. The panels can be used on either right or left sides but the
mounting brackets come in left and right parities. The brackets are
attached to ITC end plate with the 8 mm button head screws. The panel
is attached to the bracket with two of the #10 x 1/2 inch screws.
The bottom of the panel is not attached but will be captured between the
fiber assembly plate and the weld bar on the ITC plug.
Carry the assembly into position, holding the metal plate in one hand and
supporting the fibers with the other. Attach the plate to the ITC end plate
using one of the button head screws in the hole as shown in Figure
2. Insert the screw far enough to hold the plate, but do
not tighten yet. The profiles should hang in line with the slots
that they will occupy. Insert the connector ends through the holes
in the support panel.
Remove the cardboard splint by pulling off the tape that holds it to the
plate and slitting the tape that bridges the two cardboard pieces. Insert
the second button head screw into the second mounting hole in the plate.
Do not tighten it yet. Press
the ends of the profiles near the plate into their slots.
Complete the insertion of the profiles by hand or use a special insertion
tool as shown in Figure
3. (The insertion tool used for the other profiles can't be used.)
The plate should now be in its final position and the screws can be tightened.
Install the second assembly on the other side of the module.
The 8 longer clear fibers on the odd (even) side are routed to PMT13 (PMT14).
The 8 shorter clear fibers on the odd (even) side are routed to PMT1
(PMT2).