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Cisco 3200 Series Router Hardware Upgrade Guide
OL-15983-01
Chapter 3 Replacing Cards in the Cisco ISR 3270 Rugged Enclosure
Card Replacement Process
Reattaching the I/O End Cap
To reattach the I/O end cap, follow these steps:
Step 1 Thread the following cables under the card stack from the I/O end cap to the antenna end cap side:
• USB
• FE1
• FE0 and FE1 or GE0 and GE1
Step 2 Thread one of the power cables under the card stack from the Mobile Router Power Card (MRPC) card
to the I/O end cap side.
Step 3 Attach the power cable connector to the I/O end cap.
Step 4 Reconnect the following cables to the ports on the back of the MARC on the antenna end cap side:
• USB ground
• USB
• FE0 and FE, or GE0 and GE1
Step 5 Align the guide pins of the I/O end cap with the front of the extrusion. (The antenna end cap does not
have guide pins. The extrusion does not have holes for the guide pins in the back of the extrusion.)
Step 6 Engage the I/O board with the wiring card.
Step 7 Verify that the gasket is fully centered in the groove.
Step 8 Press the I/O end cap in place.
Step 9 Use a 3/8-inch socket wrench to secure the I/O end cap with four 1/4-20 x 1 1/4-inch-long bolts. The
torque range for the I/O end cap bolts is 58 to 68 in-lb.
Note If a protective end cap cover is used to provide weatherproof protection for the ports on the I/O
end cap, align the holes of the hinge brackets of the protective end cap to the I/O end cap with
the holes of the mounting bolts on the I/O end cap. Then, insert the 4 mounting bolts through the
hinge bracket and I/O end cap holes to attach the I/O end cap and its protective cover to the
extrusion. Figure 2-16 shows the parts of a protective end cap cover.