Cisco Catalyst 2900 Series Hardware Installation Manual page 30

Connecting to Module Ports
Note
Figure 2-5 Inserting an SC Connector into a 100BaseFX or 1000BaseX SC Module
Using a Patch Cord with the GBICs
Note
Catalyst 2900 Series XL Modules Hardware Installation Guide
2-8
Always use a straight-through cable when connecting to a PC,
server, or workstation. Use a crossover cable to connect to another
switch or hub. See the section "10/100 Module Cabling" in
Appendix B, "Connectors and Cables."
Tighten
Screws
To Activate
WS-X29 31-XL
Tx Rx
10BaseT /100Base Tx
When using the LX/LH GBIC with 62.5-micron diameter multimode fiber
(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 for link distances greater than 984 feet
(300 meters).
You must use the patch cord to comply with the IEEE 802.3z
standards. Using the LX/LH GBIC with MMF and no patch cord for
very short link distances (tens of meters) is not recommended. The
result could be an elevated bit error rate (BER).
Tighten
Screws
To Activate
100Ba seFX
100Ba seFX
WS-X29 22-XL-V
Chapter 2 Installation
XL
SERIES
78-5912-03