B-7
Catalyst 6500 Series Ethernet Modules Installation Guide
OL-6265-03
Appendix B Pluggable Transceiver Modules
1-GB Transceivers
Table B-9
lists the fiber loss budgets for the 1-GB SFP transceivers.
Table B-8
SFP Transceiver Cabling Specifications
SFP Transceiver
Module and Product
Number
Interface
Connector
Nominal
Wavelength
(nm)
Network
Cable Type
Fiber Core
Size
(micron)
Modal
Bandwidth
(MHz/km)
Cable Distance
1
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.
1000BASE-T
(GLC-T=)
RJ-45
—
Category 5,
5e, or 6
UTP/FTP
—
—
328 ft (100 m)
1000BASE-SX
(GLC-SX-MM=)
LC duplex
850
MMF
62.5
62.5
50.0
50.0
160
200
400
500
722 ft (220 m)
902 ft (275 m)
1640 ft (500 m)
1804 ft (550 m)
1000BASE-LX/LH
(GLC-LH-SM=)
LC duplex
1300
MMF
2
SMF
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).
62.5
50.0
50.0
G.652
3
3.
ITU-T G.652 SMF as specified by the IEEE 802.3z standard.
500
400
500
—
1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
6.21 mi (10 km)
1000BASE-ZX
(GLC-ZX-SM=)
LC duplex
1550
SMF
G.652
3
—
43.4 to 62 mi (70 to
100 km)
4
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.
Table B-9
Fiber Loss Budgets for the 1-GB SFP Transceivers
1-GB SFP Transceiver
Product Number
Transmit (dBm)
Receive (dBm)
GLC-SX-MM
(1000BASE-SX)
–4 (maximum)
–9.5 (minimum)
0 (maximum)
–17 (minimum)
GLC-LH-SM
(1000BASE-LX/LH)
–3 (maximum)
–9.5 (minimum)
–3 (maximum)
–20 (minimum)
GLC-ZX-SM
(1000BASE-ZX)
5 (maximum)
0 (minimum)
–3 (maximum)
–23 (minimum)
GLC-BX-U
–3 (maximum)
–9 (minimum)
–3 (maximum)
–19.5 (minimum)
GLC-BX-D
–3 (maximum)
–9 (minimum)
–3 (maximum)
–19.5 (minimum)