Cisco 2948G-GE-TX - Catalyst Gigabit Ethernet Switch Instalační příručka stáhnout pdf (Strana 4)

Chapter 4 Configuring the Gigabit Ethernet Ports

Installing, Removing, and Maintaining GBICs

4-4

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-04

Note For information about the Coarse Wave Division Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

GBIC Optical Power Characteristics

Table 4-3 provides the GBIC optical power characteristics.

Note For information about the Coarse Wave Division Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

Table 4-2 GBIC Port Cabling Speciﬁcations

GBIC Wavelength

(nm)

1. Nominal fiber specification wavelength.

Fiber Type

Core Size

(microns)

Modal Bandwidth

(MHz/km)

Maximum Cable

Distance

2. MMF only.

850 MMF 62.5 160 722 ft (220 m)

62.5 200 902 ft (275 m)

50.0 400 1640 ft (500 m)

50.0 500 1804 ft (550 m)

LX/LH 1300 MMF

3. Patch cord required (refer to the “Patch Cord” section on page 4-10 for details).

62.5 500 1804 ft (550 m)

50.0 400 1804 ft (550 m)

50.0 500 1804 ft (550 m)

SMF 9/10 – 6.2 mi (10 km)

ZX 1550 SMF 9/10 – 43.5 mi (70 km)

SMF

4. Dispersion-shifted single-mode fiber-optic.

– – 62.1 mi (100 km)

1 2 3 4 5 6 7 8 9 ... 17 18

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Cisco 2948G-GE-TX - Catalyst Gigabit Ethernet Switch Instalační příručka Strana 4