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Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
July 2005
Chapter 1 General Troubleshooting
1.12.2 Faulty Fiber-Optic Connections
Note Odd-numbered pins always connect to a white wire with a colored stripe.
Replace Faulty GBIC or SFP Connectors
GBICs and SFPs are hot-swappable and can be installed or removed while the card or shelf assembly is
powered and running.
Warning
Class 1 laser product.
Statement 1008
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.
Statement 1051
GBICs and SFPs are input/output devices that plug into a Gigabit Ethernet card or MXP card to link the
port with the fiber-optic network. The type of GBIC or SFP determines the maximum distance that the
Ethernet traffic can travel from the card to the next network device.
Note GBICs and SFPs must be matched on either end by type: SX to SX, LX to LX, or ZX to ZX.
GBICs are available in two different models. One GBIC model has two clips (one on each side of the
GBIC) that secure the GBIC in the slot on the E1000-2-G or G-Series card. The other model has a
locking handle. Both models are shown in Figure 1-55.
Figure 1-55 Gigabit Interface Converters
3 white/green 3 Receive Data + 1
4blue 1— 4
5 white/blue 1 — 5
6 green 3 Receive Data – 2
7 white/brown 4 — 7
8brown 4— 8
Table 1-6 Cross-Over Cable Pinout (continued)
Pin Color Pair Name Pin
Receiver
Clip
Handle
Transmitter
Receiver
Transmitter
51178
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