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Warning Only trained and qualified personnel should be allowed to install, replace, or service this product. |
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Caution You must be properly grounded before handling this ESD-sensitive product. |
This quick start guide shows you how to install a Cisco uBR-MC16 cable interface line card in the Cisco uBR7246VXR router.
The Cisco uBR-MC16 cable interface line card improves RF performance, supports spectrum management, increases system performance and supports online insertion and removal (OIR).
The line card is available in two configurations:
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Note If you are using the Cisco uBR-MC16U/X card to replace a different type of card, you must reconfigure for the MC16U/X. |
Step 2 Use both hands to grasp the card by its metal carrier edges and align the card with the slot guides, component side up.
Step 3 With the metal carrier aligned in the slot guides, briskly slide the card into the card slot until you feel it seat in the backplane connectors.
Step 4 Tighten the captive screws.
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Note The captive screws provide grounding for the electromagnetic interference (EMI) shielding. |
The Cisco uBR-MC16U cable interface line card has an onboard upconverter. To cable the card:
The RF downstream port ring and end tabs are green. See Figure 2.
Step 2 Connect the upstream cables to the upstream ports (US0—US5).
The Cisco uBR-MC16X cable interface line card does not have an onboard upconverter. The card may require up to 10 dB of attenuation due to a higher IF output power (higher than legacy Cisco line cards). To cable the card:
The IF downstream port ring and end tabs are yellow. See Figure 3.
Step 2 Add RF attenuators as required to get the correct IF output. Insert the attenuator between the downstream IF output cable and the upconverter. See Figure 3
Step 3 Connect the upstream cables to the upstream ports on the card (US0—US5).
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Note All upstream ports are light blue. |
To prevent the alarms from activating, administratively shut down the card before removing it from the chassis. Refer to "Shutting Down and Restarting the Interface" in the Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide. See "Related Documentation" for the URL.
Step 2 Disconnect all the cables from the cable interface line card.
Step 3 Unscrew the captive installation screws on the faceplate.
Step 4 Grasp the handle and carefully pull the card out of its slot.
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Caution Always handle the cable interface line card by the carrier edges and handle; never touch the card's components or connector pins. |
Step 5 Place the card on an antistatic surface with the component side facing up.
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Note If the card is being returned to the factory, immediately place it in a static shielding bag and proper packaging for protection. |
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Caution For proper cooling and airflow, always install a line card cover in an empty line card slot. |
1. Make sure that the card is securely seated in the chassis.
If the captive screws do not tighten all the way, the card is not properly seated in the chassis or backplane. Carefully pull the card halfway out of the slot, reinsert it, and tighten the captive installation screws.
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Caution A partially seated line card can cause the router to reboot. |
If yes, the system is operational.
If no, check the following possibilities:
a. Verify that the card has been enabled and configured for operation. The ENABLED LED remains off when a card has not been configured and enabled.
b. If a port is enabled but its corresponding ENABLED LED is still off, check to see if the card has pulled away from the backplane. Reseat the card in its slot. (You do not have to turn off the system power to do this.) After the system reinitializes the interfaces, the ENABLED LED on the card should come on.
3. If the ENABLED LED remains off after the above checks, it is likely that the system has detected a processor hardware failure.
Contact Cisco TAC for further information and help. To access the Cisco TAC website, go to the following URL:
Table 2 Technical Specifications
For more information, see the following:
http://www.cisco.com/univercd/cc/td/doc/
product/cable/cab_rout/cr72hig/index.htm
http://www.cisco.com/univercd/cc/td/doc/
product/cable/cab_rout/cfig_nts/index.htm
http://www.cisco.com/univercd/cc/td/doc/
product/cable/cab_rout/cr72scg/index.htm
http://www.cisco.com/univercd/cc/td/doc/
product/cable/cab_rout/ubrerrs.htm
http://www.cisco.com/univercd/cc/td/doc/
product/cable/cab_rout/cmtsfg/index.htm
http://www.cisco.com/univercd/cc/td/doc/
es_inpck/cetrans.htm
http://www.cisco.com/warp/public/44/jump/
cable.shtml
Posted: Wed Feb 25 16:31:06 PST 2004
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