Patch Cord - Cisco Catalyst 6500 Series Installation Manual

Chapter 2 Preparing for Installation
Table 2-9 10-Gigabit Ethernet Optical Power Specifications
Model
WS-X6501-10GEX4
1
WS-G6488 OIM
1
WS-G6483 OIM
1. Optical Interface Module (OIM). The WS-G6488 OIM and WS-G6483 OIM is installed in the
WS-X6502-10GE 10-Gigabit Ethernet Base Module.

Patch Cord

Note
Note
78-15725-02
Average Transmitter
Output Power
–3.5 dBm (minimum)
+2 dBm (maximum)
–8.2 dBm (minimum)
+0.5 dBm (maximum)
–4.7 dBm (minimum)
+4 dBm (maximum)
When using the long wavelength/long haul (LX/LH) GBIC with 62.5-micron
diameter MMF, you must install a mode-conditioning patch cord (Cisco
product number CAB-GELX-625 or equivalent) between the GBIC and the MMF
cable on both the transmit and receive ends of the link. The patch cord is required
for link distances greater than 984 feet (300 meters).
We do not recommend using the LX/LH GBIC and MMF without a patch cord for
very short link distances (10 to 100 meters). The result could be an elevated bit
error rate (BER).
The patch cord is required to comply with IEEE standards. IEEE found that link
distances could not be met with certain types of fiber-optic cable due to a problem
in the center of some fiber-optic cable cores. The solution is to launch light from
the laser at a precise offset from the center by using the patch cord. At the output
of the patch cord, the LX/LH GBIC complies with the IEEE 802.3z standard for
1000BASE-LX. For a detailed description of this problem, see the
Mode Delay" section on page
Average Receiver Input
Power
–16 dBm (minimum)
0 dBm (maximum)
–14.4 dBm (minimum)
+0.5 dBm (maximum)
–15.8 dBm (minimum)
–1 dBm (maximum)
2-11.
Catalyst 6500 Series Switch Module Installation Guide
Determining Cable Distances
Link Power
Budget
12.5 dB
6.2 dB
11.1 dB
"Differential
2-9