Cisco IE 2000, Installation Manual

Page: 88 / 102

88
Cables and Adapters

SFP Module Cables, page 88

Cable Pinouts, page 91

Console Port Adapter Pinouts, page 92
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. Copper 1000BASE-T SFP transceivers use standard four twisted-pair, CAT5
(or greater) cable at lengths up to 328 feet (100 meters).
Notes

The maximum operating temperature of the switch varies depending on SFP module type. See Table 2 on page 17
for supported temperature ranges.

Modal bandwidth applies only to multimode fiber (MMF).

A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.

1000BASE-LX/LH SFP modules connected with MMF over a short link distance require a mode-conditioning patch
cord.
Ordinary patch cords can cause transceiver saturation, resulting in an elevated bit error rate (BER). Using the
1000BASE-LX/LH SFP module with 62.5-micron diameter multimode fiber (MMF) requires a mode-conditioning
patch cord between the single mode fiber (SMF) SFP module and the MMF cable on both the send and receive link
ends.

Link distances greater than 984 feet (300 m) require a mode-conditioning patch cord.

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 fiber quality, the number of splices, and the connectors.

Fiber-optic cable spans less than 15.43 miles (25 km) require 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 19 Industrial and Rugged SFPs—Fiber-Optic SFP Module Port Cabling Specifications
Type of SFP
Module Model Wavelength
(nanometers) Fiber
Type Core
Size/Claddin
g Size
(micron) Modal
Bandwidth
(MHz/km) Cable Distance
1000BASE-LX/LH GLC-LX-SM-RGD 1310 M
SMF
62.5
50.0
50.0
G.652 500
400
500
— 1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
6.2 miles (10 km)
1000BASE-SX GLC-SX-MM-RGD 850 MMF 62.5/125
62.5/125
50/125
50/125 160
200
400
500 722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
1000BASE-ZX GLC-ZX-SM-RGD 1550 SMF G.652 — 43.4 to 62 miles
(70 to 100 km)