Summary of the content on the page No. 1
•
FPC Installation Instructions
Part No. 530-005362-01 This document describes how to remove and replace a Flexible PIC Concentrator (FPC) on a
Revision 2
Juniper Networks M20, M40, M40e, or M160 Internet router.
1 October 2002
For additional installation and configuration information, refer to the following
documentation:
! M20 Internet Router Hardware Guide
! M40 Internet Router Hardware Guide
! M40e Internet Router Hardware Guide
! M160 Internet Router Hardware
Summary of the content on the page No. 2
FPC Description FPC Description The FPCs on a router house the Physical Interface Cards (PICs), which connect the router to network media. The I/O Manager ASIC or ASICs on the FPC accepts incoming data packets from the PICs on the FPC and divides each packet into 64-byte cells. The cells cross the midplane to the SFM, where another ASIC decides how to distribute them among the memory buffers located on and shared by all installed FPCs. After the SFM decides how to forward a
Summary of the content on the page No. 3
FPC Description M20 FPC Description In an M20 router, up to four FPCs install horizontally into the midplane from the front of the chassis, below the System and Switch Board (SSB). Each FPC is referenced by the number of the slot in which it is installed. The slot numbers range from FPC0 through FPC3, from top to bottom in the chassis. Each FPC accommodates up to four PICs. Figure 1 shows a chassis with FPCs—each housing four PICs—installed in all four slots. Figure 1: M20
Summary of the content on the page No. 4
FPC Description M40 FPC Description In an M40 router, up to eight FPCs install vertically into the backplane from the front of the chassis, four on either side of the System Control Board (SCB). Each FPC is referenced by the number of the slot in which it is installed. The slot numbers range from FPC0 through FPC7, from left to right in the chassis. Each FPC can accommodate up to four PICs. Figure 2 shows an FPC housing four PICs installed in slot FPC7. Figure 2: M40 Route
Summary of the content on the page No. 5
FPC Description M40e FPCs Description In an M40e router, up to eight FPCs install vertically into the midplane from the front of the chassis. Each FPC is referenced by the number of the slot in which it is installed. The slot numbers range from FPC0 through FPC7, from left to right in the chassis. The M40e router supports the three types of FPC shown in Figure 3: ! M40e-FPC—Accommodates up to four PICs of the type also supported on M20 and M40 routers. ! M40e-FPC1—A
Summary of the content on the page No. 6
R FPC Description Any combination of the three types of FPC can be installed in the M40e router. Figure 4 shows an M40e router with an M40e-FPC1 (housing four PICs) installed in slot FPC0. Figure 4: M40e Router with an M40e-FPC1 Installed in Slot FPC0 FPC Installation Instructions 6 1909
Summary of the content on the page No. 7
FPC Description M160 FPCs Description In an M160 router, up to eight FPCs install vertically into the midplane from the front of the chassis. Each FPC is referenced by the number of the slot in which it is installed. The slot numbers range from FPC0 through FPC7, from left to right in the chassis. The M160 router supports the two types of FPC shown in Figure 5: ! FPC1—Accommodates up to four lower-speed PICs such as single-port OC-12 and Gigabit Ethernet interfaces. The
Summary of the content on the page No. 8
R Tools and Parts Required Figure 6 shows an M160 router with an FPC1 (housing four PICs) installed in slot FPC0. Figure 6: M160 Router with an FPC1 Installed in Slot FPC0 Tools and Parts Required To replace an FPC or a PIC, you need the following tools and parts: ! Phillips (+) screwdrivers, numbers 1 and 2 ! Electrostatic bag or antistatic mat, one for each FPC removed from the chassis and PIC removed f
Summary of the content on the page No. 9
Replace an FPC in an M20 Router Replace an FPC in an M20 Router On an M20 router, the FPCs are hot-insertable and hot-removable, so you can remove and replace them without powering down the router. When you remove an FPC, the router continues to function, but the PICs installed on the FPC do not receive or transmit data. For instructions, see the following sections: ! Remove an FPC from an M20 Router on page 9 ! Install an FPC in an M20 Router on page 10 Remove an F
Summary of the content on the page No. 10
Replace an FPC in an M20 Router 8. Grasp the FPC with both hands and slide it about halfway out of the chassis. SeeFigure7. 9. Place one hand underneath the FPC to support it, and slide it completely out of the chassis. Set the FPC on the antistatic foam mat prepared in Step 1, component-side down and with the PIC faceplates facing you. To avoid damaging any components, use extra care when laying the FPC on the antistatic mat, particularly if the mat is not made of foa
Summary of the content on the page No. 11
Replace an FPC in an M20 Router 3. Grasp the front of the FPC with both hands and align the rear with the guides at the sides of the FPC slot in the chassis. 4. Slide the FPC straight into the card cage until it contacts the midplane. When about 1 in. (2.5 cm) of the FPC remains outside the slot, adjust the insertion speed so that it takes between 1 and 15 seconds for the FPC to contact the midplane. Completing the insertion too quickly or too slowly can cause the router
Summary of the content on the page No. 12
Replace an FPC in an M40 Router Figure 8: Install an FPC in an M20 Router Craft interface PICs FPC Replace an FPC in an M40 Router On an M40 router, the FPCs are hot-insertable and hot-removable, so you can remove and replace them without powering down the router. When you remove an FPC, the router continues to function, but the PICs installed on the FPC do not receive or transmit data. For instructions, see the following secti
Summary of the content on the page No. 13
Replace an FPC in an M40 Router 4. Take the FPC offline by pressing and holding its offline button for 5 seconds or until the green OK LED next to the button goes out. The offline button for each FPC is located on the craft interface just below the FPC slot. 5. Disconnect the cables from the PICs on the FPC. If a PIC uses fiber-optic cable, immediately cover each transceiver and the end of each cable with a rubber safety cap. Arrange the disconnected cables in the cable management sy
Summary of the content on the page No. 14
Replace an FPC in an M40 Router Figure 9: Remove an FPC from an M40 Router Install an FPC in an M40 Router To install an FPC in an M40 router, follow this procedure: 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Install or remove PICs as desired by following the instructions in the M40 Internet Router Hardware Guide. You must install or remove PICs before installing the
Summary of the content on the page No. 15
Replace an FPC in an M40 Router 6. If any of the PICs on the FPC connect to fiber-optic cable, remove the rubber safety cap from each transceiver and each cable. Do not look directly into the ends of fiber-optic cables or into the transceivers on the PIC faceplate. Single-mode fiber-optic cable and the PICs that use it (such as ATM and SONET/SDH interfaces) emit laser light that can damage your eyes. 7. Insert the appropriate cable into the cable connector ports on eac
Summary of the content on the page No. 16
Replace an FPC in an M40e or M160 Router Replace an FPC in an M40e or M160 Router On an M40e or M160 router, the FPCs are hot-insertable and hot-removable, so you can remove and replace them without powering down the router. When you remove an FPC, the router continues to function, but the PICs installed on the FPC do not receive or transmit data. For instructions, see the following sections: ! Remove an FPC from an M40e or M160 Router on page 16 ! Install an FPC in an
Summary of the content on the page No. 17
Replace an FPC in an M40e or M160 Router Do not leave a transceiver uncovered. The safety cap keeps the port clean and prevents accidental exposure to laser light. Avoid bending fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose. 6. If you need to remove or replace PICs in an M40e-FPC1 or M40e-FPC2 or on an M160 router, perform the removal or replaceme
Summary of the content on the page No. 18
R Replace an FPC in an M40e or M160 Router Figure 11: Remove an FPC from an M40e or M160 Router Offline button Ejector levers Install an FPC in an M40e or M160 Router To install an FPC in an M40e or M160 router, follow this procedure (see Figure 12): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. If installing an M40e-FPC, you must install PICs into
Summary of the content on the page No. 19
Replace an FPC in an M40e or M160 Router 4. Grasp the front of the FPC with one hand and place the other hand under the FPC to support it. Do not hold the FPC by the ejector levers, bus bars, or edge connectors. They cannot support its weight. 5. Align the rear bottom corners of the FPC with the guides at the bottom of the desired FPC slot. Slide the FPC all the way into the card cage until it contacts the midplane. When an M40e-FPC is installed in the chassis, t
Summary of the content on the page No. 20
R Replace a PIC in an M40e-FPC Figure 12: Install an FPC in an M40e or M160 Router Ejector levers You can also use the following CLI command to confirm correct FPC and PIC functioning: user@host> show chassis fpc For more information, see the JUNOS Internet Software Operational Mode Command Reference. Replace a PIC in an M40e-FPC To remove or replace a PIC in an M40e-FPC, see the instructions in the following
