8
分类： 系统运维
2008-05-22 09:22:53
|
8 |
4 feet |
LS-CAB-8E3-4B= | |
|
72-1062-01 |
8 |
8 feet |
LS-CAB-8E3-8B= |
|
72-1063-01 |
8 |
12 feet |
LS-CAB-8E3-12B= |
The table below shows appropriate ordering information shows the T3/E3 coaxial cable dressing panel, together with a T3/E3 fantail cable harness. Note however that these components, although shown as connected in Figure 3-16, are available separately using the ordering information from the tables above.
Figure 3-16:
Where used:
The T3/E3 75-ohm coaxial cable is available from Cisco Systems in four different lengths. Use the appropriate number from the table below for ordering purposes.
| Manufacturing No. | Length | Order No. |
|
72-0998-01 |
3 feet |
LS-CAB-T3-CX3= |
|
72-0399-01 |
25 feet |
LS-CAB-T3-CX25= |
|
72-1000-01 |
50 feet |
LS-CAB-T3-CX50= |
|
72-1001-01 |
100 feet |
LS-CAB-T3-CX100= |
is a physical representation of 75-ohm T3/E3 coaxial cable.
Figure 3-17: Cable
shows the external connectors on both the multimode and single mode OC-3c access cards. The multimode OC-3c and single mode OC-3c cables are described in separate sections below.
Multimode interface connector type: Duplex SC
Connectors per multimode access card: 4 (2 per port; ports are numbered 0 and 1)
Single mode interface connector type: ST
Connectors per single mode access card: 4 (2 per port; ports are numbered 0 and 1)
Figure 3-18: OC-3c Access Cards
Where used: To connect a multimode OC-3c access card on an LS2020 switch to another OC-3c device.
Cisco Systems does not provide this cable; it is widely available from other vendors.
The LS2020 OC-3c interfaces operate at a wavelength of 1300 nanometers. Multimode cables should conform to the following specifications:
Standard: ISO/IEC 9314-3
Maximum path length (all cables in a connection, end to end): 2 km
Cabling: 62.5 micron core with an optical loss of 0-9 dB, or 50 micron core with an optical loss of 7 dB.
Note A single fiber link should not mix 62.5 and 50 micron cable.
Note Protective covers are provided for all OC-3c access cards and cable connectors. To shield connectors from dust and damage, keep covers on any connectors that are not being used.
Figure 3-19 shows a multimode OC-3c cable with simplex SC connectors.
Figure 3-19: ) and duplex SC connectors; both connector types are compatible with LS2020 multimode access cards. However, the use of duplex SC connectors is preferred because they are keyed in a way that prevents incorrect connections.
Where used: To connect a single mode OC-3c access card on an LS2020 switch to another OC-3c device. Cisco Systems does not provide this cable; it is widely available from other sources.
The LS2020 OC-3c interfaces operate at a wavelength shows a single mode OC-3c cable with ST connectors.
Figure 3-20: with ST Connectors
shows the media interface connectors
Where used: To connect an LS2020 multimode FDDI access card to another FDDI device. Cisco Systems does not provide this cable; it is widely available from other vendors.
The LS2020 FDDI interface operates at a wavelength of 1300 nanometers. Cables should conform to the following specifications:
Cabling: 62.5 micron core, graded-index fiber with an optical loss of 11 dB and a maximum cable attenuation of 1.5 dB/km at 1300 nanometers.
Connectors: MIC
Maximum path length: (all cables in a connection, end to end): 2 km
Note Protective covers are provided for all FDDI access card and cable connectors. To shield connectors from dust and damage, keep covers on any connectors that are not being used. /U> shows a physical representation of an FDDI cable.
Where used: Where used: To directly connect an Ethernet access card on an LS2020 switch to another device on the Ethernet, such as a workstation. Note Some MAUs
Figure 3-22:
Cisco Systems does not provide this cable; it is widely available from other vendors.
The LS2020 fiber Ethernet interfaces operate at a wavelength of 850 nanometers. Multimode cables should conform to the following specifications:
Standard: ISO/IEC 9314-3
Maximum path length (all cables in a connection, end to end): 2 km
Cabling: 62.5 micron core with an optical loss of 0-9 dB, or 50 micron core with an optical loss of 7 dB.
Note A single fiber link should not mix 62.5 and 50 micron cable.
Note Protective covers are provided for all fiber Ethernet access cards and cable connectors. To shield connectors from dust and damage, keep covers in place on any connectors that are not being used.
Canada, Mexico, Japan, and USA
125V @ 20A
NEMA 5-20P
37-0037-01
L2020-PWR-NA=
Canada, Mexico, Japan, and USA
125V @ 20A
NEMA L5-20P
37-0038-01
L2020-PWR-NA125=
Canada, Mexico, Japan, and USA
250V @ 20A
NEMA L6-20P
37-0039-01
L2020-PWR-NA250=
Continental Europe, including Austria, Belgium, Finland, France, Germany, the Netherlands, Norway, Portugal, Spain, and Sweden
250V @ 16A
CEE 7/7
37-0040-01
L2020-PWR-E=
Argentina, Australia, New Zealand, and Papua New Guinea
250V @ 15A
AS3112-1981
37-0041-01
L2020-PWR-A=
Denmark
250V @ 10A
107-2-DI
37-0042-01
L2020-PWR-D=
England, Hong Kong, Ireland, Malaysia, Scotland, Singapore, and Wales
250V @ 13A
BS 1363
37-0043-01
L2020-PWR-U=
India and South Africa
250V @ 15A
BS 546
37-0044-01
L2020-PWR-IN=
Israel
250V @ 16A
SI 32
37-0045-01
L2020-PWR-IS=
Italy
250V @ 16A
CEI 23-16
37-0046-01
L2020-PWR-I=
Switzerland
250V @ 10A
SEV 1011
37-0047-01
L2020-PWR-CH=