Universal Broadband Router Hardware Installation Guide

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Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
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Chapter 1 Cisco uBR10012 Universal Broadband Router Overview
Network Uplink Cards
LEDs
This line card faceplate contains the following LEDs that continuously indicate line card status as well
as the status of the port during operation (see
Figure 1-25):
FAIL (yellow)—This LED lights during portions of the POST (Power-On Self Test), but remains off
after the POST on a properly working line card. If the line card fails during operation, this LED
lights and an alarm event occurs.
The FAIL LED blinks during the following SFP faults:
– An SFP GBIC other than a Cisco brand is inserted
– A non-Gigabit Ethernet SFP GBIC is inserted
– A hardware problem occurs in a valid SFP GBIC
• Link (green)—When on, this LED indicates that a carrier signal exists. If negotiation is enabled (at
both ends), it indicates successful completion and the port can pass traffic.
Note This LED can also be on if the line card is in internal loopback.
When off, this LED indicates that no carrier signal is detected, negotiation failed, or the port is
administratively down.
– RX (green)—When on, this status LED indicates that packets are being received. When this
LED is off, the line card is not receiving packets.
– TX (green)—When on, this status LED indicates that packets are being transmitted. When this
LED is off, the line card is not transmitting packets.
Note Because this line card operates in full-duplex mode, both the RX and TX LEDs can be on at
the same time.
For additional information about using the faceplate LEDs to troubleshoot the line card, see the
“Troubleshooting the Line Cards” section on page 4-12.
SFP Gigabit Ethernet Interface Converter Modules and Cable Specifications
The HHGE line card supports single Ethernet interfaces based on SFP GBIC technology. The following
SFPs are supported by this line card:
• 1000Base-SX SFP—The SFP-GE-S, 1000Base-SX SFP operates on ordinary multimode fiber optic
link spans of up to 550 meters in length.
• 1000Base-LX/LH SFP—The SFP-GE-L, 1000Base-LX/LH SFP operates on ordinary single-mode
fiber optic link spans of up to 10,000 meters in length.
• 1000Base-ZX SFP—The GLC-ZX-SM, 1000Base-ZX SFP operates on ordinary single-mode fiber
optic link spans of up to 70 kilometers (km) in length. Link spans of up to 100 km are possible using
premium single-mode fiber or dispersion-shifted single-mode fiber. The SFP provides an optical
link budget of 23 dB—the precise link span length depends on multiple factors such as fiber quality,
number of splices, and connectors.