Table Of Contents
Replacing Cards in the Cisco ISR 3270 Rugged Enclosure
Card Replacement Process
Disconnecting All Cables from the Enclosure
Removing the Antenna End Cap
Removing the I/O End Cap
Removing the Wiring Card
Removing the Card Stack
Replacing or Adding a New Card
Inserting the Card Stack into the Enclosure
Reattaching the Wiring Card
Adjusting the WMIC Jumper Settings
Reattaching the I/O End Cap
Reattaching the Antenna End Cap
Applying New I/O End Cap Function Labels
Replacing Cards in the Cisco ISR 3270 Rugged Enclosure
This chapter describes how to replace cards in the Cisco 3270 Integrated Services Router (ISR) Rugged Enclosure cards.
Card Replacement Process
To replace a card in the Cisco 3270 Rugged Enclosure card stack, follow these steps:
1. 
Disconnect all cables from the enclosure.
2. Remove the antenna end cap.
3. Remove the I/O end cap.
4. Remove the wiring card.
5. Remove the card stack from the enclosure.
6. Replace a card or add a new one.
7. Insert the card stack into the enclosure.
8. Reattach the wiring card.
9. Reattach the I/O end cap.
10. Reattach the antenna end cap.
11. Apply new I/O end cap function labels, If needed.
These steps are described in the following sections.
Caution To prevent electrostatic damage to cards in the rugged enclosure, attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis of the enclosure before you start the card replacement process.
Caution To avoid damaging the cables, make sure that you do not crimp or pinch the cables when you press cards together or when you attach the end caps.
Disconnecting All Cables from the Enclosure
Warning Before you start working on rugged enclosures, disconnect all cables, including power, to avoid damage to the unit.
Removing the Antenna End Cap
Warning Class 1 laser product. Statement 1008
To remove the antenna end cap of a Cisco 3270 Rugged Enclosure, follow these steps:
Caution Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
Step 1 Using a 3/8-inch socket wrench and applying 58 to 68 in-lb of torque, loosen the four 1/4-20 bolts on the end cap.
Step 2 Carefully pull off the end cap enough to label and then disconnect the antenna cables, if the cables are present. Figure 3-1 shows the antenna cables.
Figure 3-1 Antenna End Cap Removal
1
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WMIC 1 primary antenna cable
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2
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WMIC 1 secondary antenna cable
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3
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WMIC 2 primary antenna cable
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4
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WMIC 2 secondary antenna cable
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5
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WMIC 3 primary antenna cable
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6
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WMIC 3 secondary antenna cable
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7
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RP-TNC antenna connector
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Step 3 If antenna cables are present, label the cables.
Use the labels on the exterior of the antenna end cap for reference. Figure 3-2 shows the exterior and interior of an antenna end cap for a rugged enclosure with three Wireless Mobile Interface Cards (WMICs), as indicated by the six labels (two for each (WMIC)) on the end cap exterior.
Figure 3-2 Antenna End Cap Labels
1
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Gigabit Ethernet 1 (fiber-optic) cable
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2
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Gigabit Ethernet 1 (copper) cable
(not used in the Gigabit Ethernet configuration)
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3
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Gigabit Ethernet 0 cable
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4
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Fast Ethernet 1 cable
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5
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Fast Ethernet 0 cable
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6
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USB cable
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7
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USB ground
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|
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Every WMIC has two antenna cables, primary (P) and secondary (S), connected to the end cap. Labeling the cables will come in handy later when you reconnect them to the end cap. Labels help you determine which ports on the antenna end cap connect the cables to. If the rugged enclosure contains only one WMIC, the WMIC's primary and secondary antenna cables would be connected to ports W1 (P) and W1 (S). If WMIC 2 is also present, its primary and secondary cables are connected to W2 (P) and W2 (S). If the rugged enclosure contains the maximum number of WMICs (3 WMICs), the primary and secondary cables of WMIC 3 would be connected to W3 (P) and W3 (S).
Step 4 Disconnect the antenna cables from the end cap.
Step 5 Place the end cap on your work surface.
Step 6 Disconnect the following cables from the card stack:
•USB ground
•USB cable
•Fast Ethernet 0(FE0) and Fast Ethernet 1 cables (FE1)
•Gigabit Ethernet 0 (GE0) and Gigabit Ethernet 1 cables (GE1)
Removing the I/O End Cap
To remove the I/O end cap, follow these steps:
Step 1 Use a 3/8-inch socket wrench to loosen the four 1/4-20 bolts on the end cap using a torque range of 58 to 68 in-lb.
Note If a protective end cap cover (see Figure 2-16) is used to provide weatherproof protection for the ports on the I/O end cap, loosening the four 1/4-20 mounting bolts on the protective end cap allows you to remove the protective end cap and the I/O end cap from the extrusion.
Step 2 Carefully pull off the end cap enough to give you enough room to disconnect the power cable. Figure 3-3 shows the cables.
Figure 3-3 Disconnecting the Power Cable
1
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GE 0
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2
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GE 1
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3
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FE extender cable
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4
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FE cable
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5
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USB cable
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6
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Power cable
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Step 3 Disconnect the power cable from the end cap.
Step 4 Slowly pull out the USB, FE 0, FE 1, GE 0, and GE 1 cables (which you already disconnected from the card stack when you removed the antenna end cap) from beneath the card stack to free up the I/O end cap.
Step 5 Place the end cap on your work surface.
Removing the Wiring Card
To remove the wiring card, follow these steps:
Step 1 Disconnect all cables from the wiring card.
Step 2 Using a Phillips screwdriver, remove (torque 5.5 to 5.7 in-lb) the 7 or 8 wiring card screws, as shown in Figure 3-4.
Figure 3-4 Removing the Wiring Card Screws
Step 3 In the case of a 0-WMIC configuration, remove screw #2 which is not used.
Step 4 Remove the wiring card.
Removing the Card Stack
To remove the card stack, follow these steps:
Step 1 Using a Phillips screwdriver, loosen the screws of the two alignment tabs that hold the card stack to the extrusion.
Step 2 Remove the two alignment tabs.
Step 3 Loosen the 16 Wedge Loks (14 on the I/O end cap side and 2 on the antenna end cap side) that are holding the card stack in place, using a 3/32-in hex blade to release the clamping mechanism, as shown in Figure 3-10.
Step 4 Slide the card stack out from the antenna end cap side, as shown in Figure 3-5.
Figure 3-5 Sliding Out the Card Stack
Step 5 Carefully place the card stack on its side on a flat surface.
Replacing or Adding a New Card
To replace or add new cards, follow the steps in the "Replacing or Adding a New Card" section on page 2-23.
Inserting the Card Stack into the Enclosure
To insert the card stack into the rugged enclosure, follow these steps:
Step 1 Make sure that the LED cable is connected to the back of the Fast Ethernet Switch Mobile Interface Card (FESMIC) and the serial console cable is connected to the back of the SMIC card. See Figure 3-6.
Figure 3-6 LED and Serial Console Cables
1
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LED cable
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2
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Serial console cable
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Step 2 Route the serial connector and (FESMIC) LED ribbon cables over the top of the stack.
Step 3 Align each cards' Wedge Loks so that the angles on the Wedge Loks match the angle of the Wedge Lok rail. Figure 2-9 shows proper Wedge Lok alignment.
Step 4 Place the extrusion vertically on a sturdy, flat surface with the antenna end cap side facing up.
Step 5 Slide the card stack into the front of the enclosure, as shown in Figure 3-7, adjusting the spacing of the cards as necessary to fit the slots. You can use a flat-blade screwdriver to make adjustments.
Figure 3-7 Inserting the Card Stack Into the (or Body) of the Rugged Enclosure
Step 6 Place the extrusion horizontally on the flat surface.
Step 7 Push the card stack farther until the card stack starts coming out from the I/O end cap side of the enclosure.
Step 8 Using a small Phillips screw driver, attach the alignment tabs to the Mobile Access Router Card (MARC), as shown in Figure 3-8. Use a torque range of 2.5 to 3.5 in-lb.
Figure 3-8 Attaching Alignment Tabs
1
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Serial console cable
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2
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LED cable
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3
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Right alignment tab
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4
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Right alignment tab
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Step 9 Slowly slide the card stack back until the alignment tabs are flush against the extrusion.
Step 10 Using a small Phillips screw driver, reattach the alignment tabs to the extrusion. Use a torque range of 2.5 to 3.5 in-lb.
Step 11 Tighten the Wedge Loks on the I/O end cap side with a 3/32-inch hex blade. Figure 3-9 shows the sequence for tightening the Wedge Loks. Use a torque range of 5.5 to 5.7 in-lb when tightening the Wedge Loks.
Caution Make sure that all the Wedge Loks are secure. Thermal transfer will not occur if any Wedge Lok is loose.
Figure 3-9 Tightening Wedge Loks
Step 12 Tighten the two Wedge Loks of the MARC on the antenna end cap side (see Figure 3-10) with a 3/32-inch hex blade. Use a torque range of 5.5-5.7 in-lb when tightening the Wedge Loks.
Figure 3-10 Sequence for Tightening Wedge Loks
Reattaching the Wiring Card
To reattach the wiring card to the card stack, follow these steps:
Step 1 Attach the wiring card to the front of the card stack by aligning ports and firmly pressing the card into the stack.
Step 2 If WMICs are present, make sure that the WMIC mounting boss is within 0.01 inch of the wiring card.
Step 3 Using a Phillips screwdriver, tighten the wiring card screws using 5.5 to 5.7 in-lb torque, as shown in Figure 3-4.
Note In a 0-WMIC configuration, screw number 2 is not used.
Step 4 Connect the cables to the wiring card, as shown in Figure 3-11.
For a 0-WMIC configuration, connect the cables to the wiring card as shown in Figure 3-11.
Figure 3-11 0-WMIC Configuration
1
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Connect the FESMIC 10-pin FE1X cable to port J14 on the wiring card.
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2
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Connect the FESMIC 10-pin FE3X cable to port J16 on the I/O card.
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3
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Connect the FESMIC 10-pin FE2X cable to port J4 on the wiring card.
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4
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Thread the FE extender cable under the card stack to the antenna end cap side.
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For a 1-WMIC configuration, connect the cables to the wiring card as shown in Figure 3-12.
Figure 3-12 1-WMIC Configuration
1
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Connect the FESMIC 10-pin FE1X cable to port J14 on the wiring card.
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2
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Connect the FESMIC 10-pin FE2X cable to port J4 on the wiring card.
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3
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Connect the FESMIC 10-pin FE3X cable to WMIC 1.
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4
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Thread the FE extender cable under the card stack to the antenna end cap side.
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For a 2-WMIC configuration, connect the cables to the wiring card as shown in Figure 3-13.
Figure 3-13 2-WMIC Configuration
1
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Connect the FESMIC 10-pin FE1X cable to port J14 on the wiring card.
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2
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Connect the FESMIC 10-pin FE2X cable to WMIC 2.
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3
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Connect the FESMIC 10-pin FE3X cable to WMIC 1.
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4
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Thread the FE extender cable under the card stack to the antenna end cap side.
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5
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Connect the WMIC 2 console port to port J2 on the wiring card, using a 20-pin cable.
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|
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For a 3-WMIC configuration, connect the cables to the wiring card as shown in Figure 3-14.
Figure 3-14 3-WMIC Configuration
1
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Connect the FESMIC 10-pin FE1X cable to WMIC 3.
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2
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Connect the FESMIC 10-pin FE2X cable to WMIC 2.
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3
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Connect the FESMIC 10-pin FE3X cable to WMIC 1.
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4
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Thread the FE extender cable under the card stack to the antenna end cap side.
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5
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Connect the WMIC 2 console port to port J2 on the wiring card, using the 20-pin cable.
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6
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Connect the WMIC 3 console port to port J3 on the wiring card using a 20-pin cable.
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Step 5 Connect the 60-pin Serial Mobile Interface Card (SMIC) serial console connector cable to port J13 on the wiring card.
Step 6 Connect the 20-pin FESMIC LED cable to port J5 on the wiring card.
Note When connecting the serial console and LED ribbon cables, use them to secure the other cables connecting the card stack to the wiring card.
Adjusting the WMIC Jumper Settings
If you add or remove WMIC cards, you must adjust the WMIC jumper settings on the I/O end cap as shown in Figure 3-15.
Figure 3-15 WMIC Jumper Settings
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.
Reattaching the Antenna End Cap
To reattach the antenna end cap, follow these steps:
Step 1 If you have added new WMICs, remove the corresponding antenna end cap plugs from the antenna end cap and replace them with RP-TNC connectors.
Step 2 Attach the antenna cables to the antenna end cap, as shown in Figure 2-2.
Step 3 Attach the antenna identification labels for the new WMICs on the antenna end cap's exterior, as shown in Figure 3-16. (Figure 3-16 shows one new label being applied over an old label.)
Figure 3-16 Attaching Antenna Labels
Step 4 Use a 3/8-inch socket to secure the antenna end cap with four 1/4-20 x 1 1/4-inch-long bolts. The torque range for the antenna end cap bolts is 58 to 68 in-lb.
Applying New I/O End Cap Function Labels
To apply new I/O end cap function labels, follow these steps:
Step 1 Identify the labels on the I/O end cap you want to change.
Step 2 Peel off the new labels from the label set you received from Cisco.
Step 3 Place the new labels over the old labels, as show in Figure 3-17. (Figure 3-17 shows one new label being applied over an old label.)
Figure 3-17 Attaching I/O Function Labels
