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Cable and Adapter Specifications
Table B-1
Fiber-Optic SFP and SFP+ Module Port Cabling Specifications (continued)
SFP Module
CWDM
10GBASE-LR
(SFP-10G-LR)
10GBASE-SR
(SFP-10G-SR)
10GBASE-CX1
(SFP-H10GB-CU1M)
(SFP-H10GB-CU3M)
(SFP-H10GB-CU5M)
1. Modal bandwidth applies only to multimode fiber.
2. A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.
3. A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF or 1000BASE-LX/LH SFP modules and a short link distance can
cause transceiver saturation and an elevated bit error rate (BER). When using the LX/LH SFP module with 62.5-micron diameter MMF, you must also
install a mode-conditioning patch cord between the SFP module 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 feet (300 m).
4. 1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the distance depends on
the fiber quality, the number of splices, and the connectors.
Four Twisted-Pair Cable Pinouts
Figure B-10
Switch
1 TPO+
2 TPO-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
B-6
Wavelength
(nanometers)
Cable Type
1470, 1490,
SMF
1510, 1530,
1550, 1570,
1590, 1610
1310
SMF
850
MMF
—
Twinax cable, 30-AWG
cable assembly
Twinax cable, 30-AWG
cable assembly
Twinax cable, 24-AWG
cable assembly
Four Twisted-Pair Straight-Through Cable Schematic
Router or PC
1 TP1+
2 TP1-
3 TPO+
6 TPO-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
Appendix B
Connector and Cable Specifications
Core
Modal
Size/Cladding
Bandwidth
Size (micron)
(MHz/km)
2
G.652
—
2
G.652
62.5/125
160
62.5/125
200
50/125
400
50/125
500
50/125
2000
—
—
1
Cable Distance
62 miles (100 km)
6.21 miles (10 km)
85 feet (26 m)
108 feet (33 m)
216 feet (66 m)
269 feet (82 m)
6,561 feet (2000 m)
3 feet (1 m)
9 feet (3 m)
16 feet (5 m)
OL-19593-02
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