Attaching the Unistruts
SUMMARY STEPS
1.
Attach each unistruts to the top of the chassis by inserting twelve M12 hex head bolts and washers, six
for each strut, into the bolt holes on the inside of the strut, and tightening with the 10-mm hex key
wrench. The closed end of a unistrut faces the front (PLIM) side of the chassis.
2.
Attach the upper grille support (see previous figure) to the unistruts by inserting four M4x14-mm long
flat head screws, two for each unistrut, and tightening them to the unistruts with the screwdriver.
3.
Attach the power shelf shutoff extenders (fixed configuration power only—number 3 in the previous
figure) by inserting the four M4 panhead screws, two for each power shelf shutoff extender, and tightening
them with the screwdriver.
4.
Attach the vertical cable troughs—one right and one left—to the front (PLIM) side of the chassis (as
shown in the next figure):
5.
Remove the blank plates by unscrewing the four screws on each one.
6.
Attach the inner cut-out panels using the four screws provided.
7.
Attach the outer cut-out panel using the four screws provided.
8.
Attach the upper grille (optional) by carefully inserting the tabs on the grille into the hook hanger
brackets on the top of the upper grille support (see next figure).
9.
Press the grille firmly against the grille support until it snaps onto the ball stud snaps.
10.
Place the logo bezel (see the next figure) over the bezel support, and press firmly until the bezel snaps
onto the ball stud snaps.
11.
Using the screwdriver, loosen the four captive screws, two on each side, that secure the lower grille
screen to its frame assembly; then carefully set the screen aside (see the next figure).
12.
Attach the frame assembly to the chassis as in the previous figure by aligning the four screws, two on
each side, on the frame to the screw holes on the chassis and tightening them with the screwdriver.
13.
Reattach the inlet grille screen (see the previous figure) to the frame assembly by aligning the four
captive screws on the screen to the screw holes on the frame assembly and tightening the screws with
the screwdriver.
14.
Attach the lower grille by carefully inserting the tabs on the grille into the hook hanger brackets on the
inlet grille frame.
15.
Press the lower grille firmly until it snaps onto the ball stud snaps.
16.
Orient the doors so that the keyholes slots are pointing up (see the next figure).
17.
Align the doors vertically in their appropriate positions so that you can determine where to thread the
first two screws that are adjacent to the keyholes. Set the doors aside and thread the two screws.
18.
Insert four M4x8-mm wafer head screws (two on each side) into the appropriate screw holes in the
doors, and use the screwdriver to tighten fully.
19.
Insert and slightly tighten all screws.
20.
Ensure that the doors are properly aligned.
DETAILED STEPS
Step 1
Attach each unistruts to the top of the chassis by inserting twelve M12 hex head bolts and washers, six for each strut,
into the bolt holes on the inside of the strut, and tightening with the 10-mm hex key wrench. The closed end of a unistrut
faces the front (PLIM) side of the chassis.
The right unistrut (as you face the front (PLIM) side of the chassis) has a cutaway in the rear to admit the
chassis ground cable; the left strut does not.
Note
Cisco CRS Routers 16-Slot Line Card Chassis Installation Guide
176
Installing and Removing Exterior Cosmetic Components
Steps