Figure 1 Metro Ethernet Services Unit 1800-24T-Lx-Dc Front Panel; Figure 2 Metro Ethernet Services Unit 1800-24T Front Panel - Nortel 1800 Installing

20 Metro Ethernet Services Unit 1800
You can connect the Fast Ethernet ports to remote network devices at either 10
Mb/s or 100 Mb/s. The ports can automatically detect the highest communication
speed and the duplex state (full- or half-duplex) that the remote network device
can accept and then configure themselves to provide the highest speed connection
possible.
In addition, the 24 Fast Ethernet ports can detect whether a cross-over or
straight-through Ethernet cable is used, and automatically connect the receive and
transmit twisted pair wires to the appropriate receive and transmit terminals. This
means that a Fast Ethernet network connection to a remote network device can use
either a cross-over or a straight-through Ethernet cable and still maintain a valid
link.
shows the front panel of the Metro ESU 1800-24T.
front panel of the Metro ESU1800-24T-DC.

Figure 1 Metro Ethernet Services Unit 1800-24T-LX-DC front panel

l
Console
Power
LED Status
Link 100
Status
Act 10

Figure 2 Metro Ethernet Services Unit 1800-24T front panel

l
Console
Power
LED Status
Link 100
Status
Act 10
317808-D
Figure 1 shows the front panel of the Metro ESU 1800-24T-LX-DC.
1 3 5 7 9 11
2 4 6 8 10 12
1 3 5 7 9 11
2 4 6 8 10 12
13 15 17 19 21 23
14 16 18 20 22 24
13 15 17 19 21 23
14 16 18 20 22 24
Figure 3 on page 21
Metro Ethernet Services Unit 1800-24T-LX-DC
1000BASE-LX 1000BASE-LX
25 26
Link
Act
Metro Ethernet Services Unit 1800-24T
25
Link
Act
Figure 2
shows the
Link
Act
11058EA
26
Link
Act
11058EA