Cisco 4948 - Catalyst Switch Installation Manual page 94
Installation guide
Hide thumbs
Also See for 4948 - Catalyst Switch:
- Datasheet (18 pages) ,
- Product bulletin (4 pages) ,
- Datasheet (14 pages)
Table of Contents
Advertisement
Transceiver Support for Uplink Ports
Table B-2
Table B-2
1000BASE-T and 1000BASE-X SFP Transceiver Specifications
SFP Transceiver
Interface
Module and Product
Connector
Number
1000BASE-T
RJ-45
(GLC-T=)
1000BASE-SX
LC duplex
(GLC-SX-MM=)
1000BASE-LX/LH
LC duplex
(GLC-LH-SM=)
1000BASE-ZX
LC duplex
(GLC-ZX-SM=)
1000BASE-BX10
LC single
(GLC-BX-D=)
1000BASE-BX10
LC single
(GLC-BX-U=)
1. Cable distances are based on fiber loss. Additional factors, such as the number of splices and the optical quality of the fiber, can affect cabling
distances.
2. A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFP transceivers, and a short link distance
can cause transceiver saturation, resulting in an elevated bit error rate (BER). When using the LX/LH SFP transceiver with 62.5-micron diameter
MMF, you must also install a mode-conditioning patch cord between the SFP transceiver and the MMF cable on both the sending and receiving ends
of the link. The mode-conditioning patch cord is required for link distances greater than 984 ft (300 m).
3. ITU-T G.652 SMF as specified by the IEEE 802.3z standard.
4. 1000BASE-ZX SFP modules can reach up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the actual distance depends
on the fiber quality, the number of splices, and the connectors.
Catalyst 4948E an Catalyst 4948E-F Switch Installation Guide
B-4
Appendix B
lists the specifications for the 1000BASE-T and 1000BASE-X SFP transceivers.
Nominal
Network
Wavelength
Cable Type
(nm)
—
Category 5,
5e, or 6
UTP/FTP
850
MMF
1300
MMF
SMF
1550
SMF
1490
SMF
(downstream)
1310
SMF
(upstream)
Transceiver, Chassis Connectors, and Cable and Adapter Specifications
Fiber Core
Modal
Size
Bandwidth
(micron)
(MHz/km)
—
—
62.5
160
62.5
200
50.0
400
50.0
500
2
62.5
500
50.0
400
50.0
500
3
G.652
—
3
G.652
—
3
G.652
—
3
G.652
—
1
Cable Distance
328 ft (100 m)
722 ft (220 m)
902 ft (275 m)
1640 ft (500 m)
1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
6.21 mi (10 km)
43.4 to 62 mi (70 to
4
100 km)
6.21 mi (10 km)
6.21 mi (10 km)
OL-21561-02
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
