Allied-telesis SwitchBlade 4000 Series Switch Hardware Reference Manuel d'utilisateur télécharger pdf (Page 56)

56 SwitchBlade 4000 Series Switch

C613-03060-00 REV H

Gigabit Interface Converters (GBICs)

The AT-SB4441 line card provides ports for eight GBICs. These are small

hot-swappable plug-in transceivers. By selecting the appropriate GBIC type,

you can match your SwitchBlade ports to their appropriate network interface.

RJ-45 copper, SC and LC fibre GBICs are currently available.

GBIC 1000BASE-T Auto-Negotiation

The 1000BASE-T GBICs operating in the AT-SB4441 line card will provide only

1000 Mbps full-duplex connections. Although these GBICs will participate in

auto-negotiation processes, they will only advertise 1000 Mbps. Half duplex,

10BASE-T, and 100BASE-TX modes are not supported.

While 1000BASE-T GBICs will auto-negotiate at the copper Ethernet level, the

ports will behave as if in fixed 1000 Mbps full-duplex mode. This is because the

SERDES connection used by GBIC ports makes the auto-negotiation invisible

to the switch, and so prevents a successful link negotiation.

The following Allied Telesis GBIC transceivers can be ordered from your

authorisedAllied Telesis reseller.

Small Form Factor Pluggables (SFPs)

The AT-SB4442 line card provides ports for 24 SFPs. SFPs are miniature

hot-swappable plug-in transceivers. By selecting the appropriate SFP type, 1

Gbps ports can be matched to the appropriate network interface, RJ-45 copper

or LC fibre. The following Allied Telesis SFP transceivers can be ordered from

your Allied Telesis reseller:

Model Media Type Description

AT-G8T 1000BASE-T Copper, 100m at 1000Mbps

AT-G8SX-01 1000BASE-X 550m SX, 50µm MM fibre

220m SX, 62.5µm MM fibre

AT-G8LX10 1000BASE-X 10 km LX, 9µm SM fibre

AT-G8LX25 1000BASE-X 25 km, LX, 9µm SM fibre

AT-G8LX40 1000BASE-X 40 km, LX, 9µm SM fibre

AT-G8LX70 1000BASE-X 70 km, LX, 9µm SM fibre

AT-G8ZX70/wwww

where xxxx is:

1610, 1590, 1570,

1550, 1530, 1510,

1490, 1470, 1450,

1430, 1410, 1390,

1370, 1350, 1330,

1310

1. Both ends of an individual fibre must use GBICs of the same wavelength.

1000BASE-ZX CWDM 1610nm to 1310nm (20nm intervals),

70 km, ZX, 9µm SM fibre

Model Media Type Description

AT-SPTX 10/100/1000BASE-T Copper, 100m at 1000Mbps, RJ-45 connector

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 62 63 64

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Allied-telesis SwitchBlade 4000 Series Switch Hardware Reference Manuel d'utilisateur Page 56

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