Cisco uBR10-SRP-OC12SML Instructions Manual page 20

About Removing and Replacing a Cisco uBR10-SRP-OC12SML DPT WAN Line Card
Excessive transmit signal levels at the receiver port can damage the card. Receiver input
Caution
specifications are P
Use an optical power meter to verify that receiver signal levels are within the specifications listed
Step 5
(P = –29.0 dBm, P
typ
Figure 11
Step 6 Connect all the cables to the line card. If you are using an attenuator with the cable, see
page 7.
Step 7 Tighten the top and bottom captive screws
Always tighten the captive screws on each Cisco uBR10-SRP- OC12SML DPT WAN line card.
Caution
These screws prevent accidental removal and provide proper grounding for electromagnetic
interference (EMI) shielding.
When fully inserted, the line card cycles through its power-on self-test. The Maintenance LED stays on
briefly (about 5 to 6 seconds) and then shuts off. If the Maintenance LED remains on or is flashing, see
About Troubleshooting the Cisco uBR10-SRP-OC12SML DPT WAN Line
For short distances (less than 15 km) an attenuator must be added to the cable configuration for the
Cisco BR10-SRP-OC12SML DPT WAN line card. See
Step 8 Configure the Cisco uBR10-SRP- OC12SML DPT WAN line card if necessary.
Refer to the "Formatting Flash Memory Cards and Disks" section in the Cisco uBR10012 Universal
Broadband Router Hardware Installation Guide, at
http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/installation/guide/hig.html.
For information about configuring the Cisco uBR10-SRP- OC12SML DPT WAN line card see
Cisco uBR10-SRP-OC12SML-DPT WAN Line Card Feature Module at
http://www.cisco.com/en/US/products/hw/cable/ps2209/prod_installation_guides_list.html.
It is not necessary to configure the Cisco uBR10-SRP- OC12SML DPT WAN line card if you are
Note
installing a replacement card in the identical slot. The system automatically downloads the necessary
configuration information from the PRE.
Cisco uBR10-SRP-OC12SML DPT WAN Line Card
20
= –31 dBm, P
min
= –31 dBm, P
min
Attaching Duplex Fiber-Optic Cables
Duplex
cable
Cisco uBR10-SRP-OC12SML DPT WAN Line Card for the Cisco uBR10012 Router
= –7 dBm.
max
= –7 dBm).
max
(Figure 7 on page 16).
Technical Specifications, page
Figure 6 on
Card.
22.
78-13602-01