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This appendix contains information about maintenance procedures that you might need to perform on the access server as your internetworking needs change.
This appendix contains the following sections:
This section describes how to replace features cards, which include:
You need the following tools and equipment:
Note the following safety recommendations:
Refer to Figure A-1 and take these steps:
Step 2 Power OFF the access server.
Step 3 Remove all interface cables from the rear panel of the access server.
Step 4 Loosen the two captive screws that secure the feature card or blank slot cover to the chassis until each screw is free of the chassis.
Step 5 Hold each captive screw between two fingers, and pull the feature card toward you until it slides free of the chassis.
Step 6 Set the feature card aside on an ESD-preventive mat.
If you have a dual E1/PRI card, you might want to change the jumper settings before installing the feature card. Refer to the section, "Setting E1 Port Jumpers" for more information.
Refer to Figure A-1 and take these steps:
Note The dual E1/PRI card may only be installed in AUSTEL-permitted customer equipment or a DTE that is exempted from AUSTEL's permit requirements. The customer equipment must only be housed in a cabinet that has screw-down lids to stop user access to overvoltages on the customer equipment. The customer equipment has circuitry that may contain hazardous telecommunications network voltages.
Step 2 Slide the feature card into the card slot until it is seated completely.
Step 3 Tighten the two captive screws on the feature card to secure it to the chassis.
Step 4 If the access server is configured with fewer than three cards, make sure that a blank slot cover is installed over each open slot to ensure proper airflow inside the chassis.
There are six 3-pin jumpers that configure the E1 termination for each port. The jumper settings are labeled on the printed circuit board for either 120-ohm balanced or 75-ohm unbalanced termination.
Step 2 Refer to Table A-1 and set the six jumpers to configure E1 Port 0 for 75-ohm unbalanced or 120-ohm balanced termination. The jumper numbers and jumper settings are labeled on the printed circuit board shown in Figure A-3.
Jumper Number |
75-Ohm Termination |
120-Ohm Termination |
Jumper Description |
---|---|---|---|
Shield to connect to pin 7 for 120 ohm, or ground ring for 75 ohm |
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E1 Port 0 Jumper Settings
Step 3 Refer to Table A-2 and set the six jumpers to configure E1 Port 1 for 75-ohm unbalanced or 120-ohm balanced termination. (See Figure A-3).
Jumper Number |
75-Ohm Termination |
120-Ohm Termination |
Jumper Description |
---|---|---|---|
E1 Port 1 Jumper Settings
This section describes how to replace 6-port MICA modules and MICA carrier cards in Cisco AS5200. For details on configuring the modules, see the Cisco AS5200 Universal Access Server Software Configuration Guide publication.
The MICA carrier card requires the following images:
The LEDs on the front panel of the MICA carrier card (Figure A-4) indicate the current operating condition of the 6-port MICA modules installed on the card. You can observe the LEDs, note any fault condition that the product is encountering, and then contact your system administrator or a customer service representative, if necessary. Refer to Table A-3Table A-2 for a description of the LEDs.
LED | State | Description |
---|---|---|
The carrier card has passed initial power-up diagnostics tests and is operating normally. |
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1The individual 6-port modem modules do not include LEDs. |
Successful installation of the new MICA modem carrier card requires three steps:
Step 2 Upgrade the Boot Flash Image. Refer to the section "Installing a New MICA Carrier Card" in the publication Cisco AS5200 Universal Access Server Software Configuration Guide.
Step 3 Install the MICA Module Carrier Card, described in the following section.
Step 4 Upgrade the modem code (optional). Refer to the appendix "Modem Management" in the publication Cisco AS5200 Universal Access Server Software Configuration Guide.
For DC-powered units only, note the following warning:
To install a new MICA module carrier card (see Figure A-5), perform the following steps:
Step 2 Slide the carrier card into the slot until it touches the backplane connector.
Step 3 Align the captive screws with their holes, and then seat the carrier card completely.
Step 4 Tighten the two captive screws to secure the carrier card to the chassis.
Step 5 If the Cisco AS5200 is configured with fewer than three cards, make sure that a blank slot cover is installed over each open slot to ensure proper airflow inside the chassis.
For DC-powered units only, note the following warning:
To remove the MICA carrier card, perform the following steps:
Step 2 Power OFF the Cisco AS5200.
Step 3 On the back of the Cisco AS5200, locate the MICA carrier card (see Figure A-5).
Step 4 Loosen the two captive screws that secure the carrier card to the chassis until each screw is free of the chassis (see Figure A-5).
Step 5 Hold the captive screws and gently pull the feature card free of the chassis. If the card is hard to remove, insert a flat-blade screwdriver vertically into the left and right sides of the board and gently pry the board loose (see Figure A-6). Then, hold the captive screws and gently pull out the carrier card.
Step 6 Set the removed carrier card aside on an ESD-preventive mat.
To remove the 6-port MICA modules, perform the following steps:
Step 2 On the carrier card, locate the 6-port MICA module you will replace (see Figure A-7).
Step 3 Orient the carrier card so that the MICA module socket faces away from you.
Step 4 Gently pry the edges of the 6-port MICA module away from the standoffs, as shown in Figure A-8.
Step 5 Push the two socket latches away from the MICA module, as shown in Figure A-9.
Step 6 Remove the MICA module from its socket, as shown in Figure A-10.
Step 7 Place the MICA module into its original packaging.
To install a 6-port MICA module:
Step 2 Seat the 6-port MICA module in the socket and press its edges onto the standoffs, as shown in Figure A-11.
You can install 12-port modules in carrier or dual E1/PRI feature cards. Each carrier card includes two slots (shown in Figure A-12), in which you can install up to two modules. The dual E1/PRI card includes only one slot (shown in Figure A-13). You can install any combination of modules in carrier or dual E1/PRI feature cards without removing them from the chassis.
You need the following tools and equipment:
Refer to Figure A-14 and take these steps:
Step 2 Power OFF the access server.
Step 3 Remove all interface cables from the rear panel of the access server.
Step 4 Loosen the two captive screws that secure the module or blank slot cover to the feature card until each screw is free of the feature card.
Step 5 Hold each captive screw between two fingers, and pull the module toward you until it slides free of the feature card.
Step 6 Set the module aside on as ESD-preventive mat.
Refer to Figure A-14 and take these steps:
Step 2 Slide the module into the carrier card or dual E1/PRI card until it is seated completely.
Step 3 Tighten the two captive screws on the module to secure it to the carrier card or dual E1/PRI card.
Step 4 If the carrier card is configured with fewer than one card, make sure that a blank slot cover is installed over the open slot to ensure proper airflow inside the chassis.
This section describes how to open the chassis by removing the chassis cover.
Note the following safety recommendations:
You must open the access server chassis to gain access to its interior components: boot read-only memory (ROM) software, dynamic random access memory (DRAM) SIMMs, and system-code SIMMs. When you replace the boot ROMs, you must also remove all feature cards in the chassis.
Step 2 Remove all interface cables from the rear panel of the access server.
Step 3 Place the access server so that the front panel is facing to you.
Step 4 Remove the three screws on the top cover of the chassis (see Figure A-15).
Step 5 Place one hand on each of the front corners of the top cover.
Step 6 Lift the front edge of the top cover slightly upward, as shown in Figure A-16.
Step 7 Pull the top cover toward you until the metal tabs on the top cover separate from the chassis bottom, as shown in Figure A-17.
Step 8 Lift the top cover until it separates from the chassis bottom and set it aside.
To upgrade the boot ROM software to a new software image, the existing boot ROMs must be replaced.
You will need the following tools and equipment:
Step 2 Attach an ESD-preventive wrist strap.
Step 3 Open the cover. (See the instructions in the section "Opening the Chassis" earlier in this appendix.)
Step 4 Remove all feature cards to access the system card. (See the instructions in the section "Removing Feature Cards" earlier in this appendix.)
Step 5 Locate the boot ROMs, labeled FW1 and FW2, on the system card. (See Figure A-18.)
Step 6 Gently extract the old ROM with a ROM extraction tool or a small flat-blade screwdriver, and set the old boot ROM on a nonconductive surface.
Step 7 Insert the new boot ROMs in their respective sockets as shown in Figure A-18. Be careful not to bend or crush any of the bottom pins. If necessary, use needlenose pliers to straighten out any bent pins.
This section describes how to upgrade the DRAM SIMM on the system card. You might need to upgrade the DRAM SIMM for the following reasons:
There are two areas of removable DRAM SIMMs in the access server (see Figure A-18). This first area is the main memory DRAM SIMMs (labeled MM). Main memory is used by the CPU to store the operating configuration, routing tables, caches, and queues.
The second area is the packet memory DRAM SIMM (labeled PKT). Packet memory is used to store incoming and outgoing packets.
You need the following tools and equipment:
Step 2 Attach an ESD-preventive wrist strap.
Step 3 Open the chassis cover. (See the instructions in the section "Opening the Chassis" earlier in this appendix.)
Step 4 Place the chassis with the main memory DRAM SIMM socket (labeled MM) toward you, as shown in Figure A-18.
Step 5 Remove all feature cards to access the system card. (See the instructions in the section "Removing Feature Cards" earlier in this appendix.)
Step 6 Remove the existing DRAM SIMM by pulling outward on the connector holders to unlatch them, as shown in Figure A-19. The connector holds the SIMM tightly, so be careful not to break the holders on the SIMM connector.
Step 7 Hold the new SIMM so that the polarization notch is located at the right end of the SIMM. Still holding the SIMM in this position, flip it so its top edge points into the SIMM socket.
Step 8 Insert the new DRAM SIMM by sliding the end with the metal fingers into the SIMM connector socket at approximately a 45-degree angle to the system card. Gently rotate the SIMM toward you until the latch on either side snaps into place. Do not use excessive force because the connector might break.
Step 9 Replace the access server chassis cover. (See the instructions in the section "Closing the Chassis" later in this appendix.)
Step 10 Connect the access server to a console terminal.
Step 11 Power ON the access server. If error messages relating to memory are displayed, remove the DRAM SIMM and reinstall it, taking care to seat the SIMM firmly in its socket.
The system code (software) is stored in Flash memory SIMMs. The 80-pin Flash memory SIMMs must be purchased from Cisco Systems, Inc. For ordering information, refer to the section "Getting Help" in the appendix "Troubleshooting the Universal Access Server."
The system code for the access server resides on two 80-pin Flash memory SIMMs. Flash memory must be installed in both system-code SIMMs (labeled FSIM0 and FSIM1).
You need the following tools and equipment:
Step 2 Attach an ESD-preventive wrist strap.
Step 3 Open the chassis cover. (See the previous procedure in the section "Opening the Chassis" earlier in this appendix.)
Step 4 Place the chassis so that the system card is shown in Figure A-18, with the system-code SIMMs toward you. The SIMM sockets are labeled FSIM0 and FSIM1. See Figure A-18.
Step 5 Remove the existing system-code SIMM by pulling outward on the connector holders to unlatch them. The connector holds the SIMM tightly, so be careful not to break the holders on the SIMM connector. See Figure A-20.
Step 6 Repeat these steps for all the system-code SIMMs that you need to replace.
Step 7 Insert the new SIMM by sliding the end with the metal fingers into the appropriate SIMM connector socket (labeled FSIM0 or FSIM1 in Figure A-18) at approximately a 45-degree angle to the system card. Gently rotate the SIMM toward you until the latch on either side snaps into place. Do not use excessive force because the connector might break. When inserting the new SIMM, make sure that the polarization notch is located at the right end of the SIMM socket. (See Figure A-20.)
Step 8 Replace the access server chassis cover. (See the instructions in the following section, "Closing the Chassis.")
Step 9 Connect the access server to a console terminal.
Step 10 Power ON the access server. If any memory-related error messages appear, remove the system-code SIMM and reinstall it, taking care to seat the SIMM firmly in its socket.
This section describes the procedure for closing the chassis.
Step 2 Hold the top cover over the chassis bottom, and align the chassis and top cover tabs at the top rear of the chassis, as shown in Figure A-21.
Step 3 Push the top cover toward the chassis rear panel, and ensure the following:
Step 4 Lower the front of the top cover to close the chassis, and ensure the following:
Step 5 Secure the chassis cover with three screws.
Step 6 Reinstall the chassis on a rack, desktop, or table.
Step 7 Reinstall all interface cables.
Posted: Sun Jan 19 10:47:11 PST 2003
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