Figure 3-20: Single Mode OC-3c Data Cable with ST Connectors
FDDI Connectors and Cables
Figure 3-21 shows the media interface connectors (MICs) on an FDDI access card.
Figure 3-21: Connectors on FDDI Access (FAC) Card
Each FDDI port consists of two connectors, A (red) and B (blue). FDDI connectors are keyed to ensure proper connection of the cable to the access card.
FDDI Cable
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.
Figure 3-22 shows a physical representation of an FDDI cable.
Figure 3-22: FDDI Cable
Ethernet Connectors and Cables
This section describes the Ethernet connectors and cables for the NP access card and the Ethernet access card.
15-pin Ethernet AUI Connector
Figure 3-23 is a schematic diagram of the 15-pin Ethernet AUI connector for the NP access card and the Ethernet access card (ports 0 and 7).
The data cable for this connector is described in the section "Ethernet AUI Data Cable " later in this chapter.
Interface connector type: AUI DB15 connector
AUI connectors per NP access card: one
AUI connectors per Ethernet access card: 2 (numbered 0 and 7)
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