Cisco CATALYST 4000 48 PORT 10/100 4 PORT RJ21 Техническое Руководство
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Table 3.
Fast Ethernet Optical Transmission Characteristics
Launch Power
Port Type
BER
Nominal Wavelength (NM)
Max (dBm)
Min (dBm)
100BASE-FX
2.5 x 10e-(10)
1270-1380
–14
–20
100BASE-LX10*
1 x 10e-(12)
1260-1360
–8
–15
100BASE-BX10-D**
1 x 10e-(12)
1480-1580
–8
–14
* Draft 1.3
** Draft 2.0
Table 4.
Fast Ethernet Optical Reception Characteristics
Receive Sensitivity
Port Type
BER
Nominal Wavelength (NM)
Max (dBm)
Min (dBm)
100BASE-FX
2.5 x 10e-(10)
1270–1380
–14
–31
100BASE-LX10*
1 x 10e-(12)
1260–1360
–8
–25
100BASE-BX10-D**
1 x 10e-(12)
1260–1360
–8
–28.2
* Draft 1.3
** Draft 2.0
Table 5.
Gigabit Ethernet Port Cabling Specifications
Port Type
Wavelength
(Nanometer)
(Nanometer)
Fiber Type
Core Size (Micron)
Modal Bandwidth
(MHz/km)
(MHz/km)
Cable Distance
Cisco 1000BASE-SX
850
MMF
62.5
62.5
50.0
50.0
160
200
400
500
722 ft (220 m)
902 ft (275 m)
1640 ft (500 m)
1804 ft (550 m)
Cisco 1000BASE-LX
1300
MMF
SMF
62.5
50.0
50.0
9/10
500
400
500
1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
32,810 ft (10 km)
Cisco 1000BASE-ZX
1550
SMF
9/10
–
44–62 miles (70–100
km)