C-4
Cisco IE 4000 Switch Hardware Installation Guide
.
Appendix C Cable and Connectors
Cables and Adapters
Cables and Adapters
• SFP Module Cables, page C-4
• Cable Pinouts, page C-7
• Console Port Adapter Pinouts, page C-8
SFP Module Cables
Each port must match the wave-length specifications on each end of the cable, and for reliable
communications, the cable must not exceed the allowable length.
Notes
• The maximum operating temperature of the switch varies depending on the type of SFP module that
you use.
• Modal bandwidth applies only to multimode fiber.
• A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.
• A mode-conditioning patch cord is required when using 1000BASE-LX/LH SFP modules, MMF,
and a short link distance . Using an ordinary patch cord can cause transceiver saturation, resulting
in 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).
• 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.
• When the fiber-optic cable span is less than 15.43 miles (25 km), insert a 5-decibel (dB) or 10-dB
inline optical attenuator between the fiber-optic cable plant and the receiving port on the
1000BASE-ZX SFP module.
Table C-2 Commercial SFPs—Fiber-Optic SFP Module Port Cabling Specifications
Type of SFP
Module Model
Wavelength
(nanometers)
Fiber
Type
Core Size/
Cladding
Size (micron)
Modal
Bandwidt
h (MHz/
km) Cable Distance
1000BASE-
BX10-D
GLC-BX-D 1490 TX
1310 RX
SMF G.652 — 6.2 miles (10 km)
1000BASE-
BX10-U
GLC-BX-U 1490 TX
1310 RX
SMF G.652 — 6.2 miles (10 km)
1000BASE-LX/
LH
GLC-LH-SM 1310 MMF
SMF
62.5/125
50/125
50/125
G. 6 5 2
500
400
500
—
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
6.2 miles (10 km)
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