Remote Connections with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type.
Using a 1000BASE-SX multimode fiber (MMF) SFP transceiver, you can
run a link up to 550 m, a 1000BASE-LX single-mode fiber (SMF) link can
run up to 5 km, and a 1000BASE-LH single-mode fiber (SMF) link can
run up to 70 km. This allows the switch to serve as a collapsed backbone,
providing direct connectivity for a widespread LAN.
1000BASE-LX, 1000BASE-LH, or 100BASE-FX SFP transceivers can be
used to interconnect remote network segments, or can be used to provide
a link to other buildings in a campus setting. 1000BASE-SX SFP
transceivers can be used for Gigabit fiber connections between floors in
the same building.
The figure below illustrates this switch connecting multiple segments with
fiber cable.
Server Farm
Remote Switch
1
1
2
2
3
3
4
4
1
1
Stack Unit ID
Console
Console
Slave
Slave
Master
Master
2
2
1000BASE-LH SMF
(70 kilometers)
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
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14
15
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20
20
21
21
22
22
23
23
24
24
11
11
13
13
23
23
25
25
26
26
Link/Act
Link/Act
PWR
PWR
PoE
PoE
Diag
Diag
25
25
26
26
Stacking
Stacking
Mode
Mode
PoE/Link
PoE/Link
12
12
14
14
24
24
10/100 Mbps Segments
...
Figure 2-3 Remote Connections with Fiber Cable
1
2
3
4
5
6
7
8
9
10
11
12
13
1
11
13
Console
2
12
14
Remote Switch
Stack Unit ID
Console
Console
Slave
Slave
Master
Master
A
PPLICATION
14
15
16
17
18
19
20
21
22
23
24
23
25
24
1000BASE-LX SMF
(5 kilometers)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
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10
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22
23
23
24
24
1
1
11
11
13
13
23
23
25
25
26
26
Link/Act
Link/Act
PWR
PWR
PoE
PoE
Diag
Diag
25
25
26
26
Stacking
Stacking
Mode
Mode
PoE/Link
PoE/Link
2
2
12
12
14
14
24
24
...
E
XAMPLES
Link/Act
Pwr
26
PoE
Diag
RPS
25
26
Stack
Mode
PoE /Link
2-5
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