Allied-telesis AT-2912T Instrukcja Użytkownika Pobierz pdf (Strona 33)

100

Secure Ethernet Network Adapter Installation and User’s Guide

Connecting the Network Cables

The AT-2712FX/SC and AT-2712LX20/SC adapters have two fiber optic

connectors (transmit and receive) for attaching the system to a compatible

link partner or an IEEE 802.3z compliant Fast Ethernet switch. Both

adapters require a fiber optic cable.

The AT-2912T adapter has one twisted-pair connector which requires a

twisted-pair cable. For pin signals and pinout information, see “10/100/

1000Base-T Twisted-Pair Port Connectors” on page 93.

To connect a network cable to the adapter, perform the following

procedure:

Warning

The fiber optic ports contain a Class 1 LED device. When the ports

are disconnected, always cover them with the provided plug.

Exposed ports may cause skin or eye damage.

1. Connect one end of the cable to the adapter:

 For the AT-2912T adapter, connect one end of the twisted-pair

cable to the adapter.

 For the AT-2712FX/SC and AT-2712LX20/SC adapters, prepare a

fiber optic cable according to the specifications in Table 3. Connect

one end of the cable to the adapter.

2. Connect the other end of the cable:

 For the AT-2912T adapter, connect the other end of the cable to

another twisted pair port.

 For the AT-2712FX/SC and AT-2712LX20/SC adapters, connect

the other end of the cable to the appropriate Ethernet fiber optic

port.

Table 3. 1000BASE-SX Fiber Optic Cable Specifications

Port Type Connector Media

Maximum

Distance

Wavelength

1000BASE-SX Fiber Optic 62.5 µm multimode

850 nm

275 meters

(853 feet)

1310 nm

1000BASE-LX Fiber Optic 9.125 µm single mode

1310 nm

10 kilometer

(6.213 miles)

1310 nm

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 99 100

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