Cisco APP-LSS Instalación y actualización - Página 22

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Installing Cards and Appliques

Figure 15

FDDI D, H, L, P

Connecting the External Fiber-Optic Cables

Following is the procedure for connecting the external FDDI cables. Refer to Figure 6 for an

illustration of the single-mode FDDI connector and to Figure 7 for illustrations of the single-mode

and multimode FDDI connectors.

Warning

appliques when no ﬁber cable is connected. Avoid exposure and do not stare into open apertures.

This product meets the Class 1 Laser Emission Requirement from CDRH FDDI.

Step 1

Step 2

Table 5

Pin No. Description

22 Installing and Upgrading the CSC-C2FCIT FDDI Card and Appliques

Orientation of the Ribbon Cables on the FDDI Applique

Cables to FDDI

interface card

FDDI A, E, I, M

FDDI B, F, J, N

FDDI applique

Invisible laser radiation may be emitted from the aperture ports of the single-mode

If you are not installing an optical bypass switch, skip to step 3.

Plug the male DIN connector (from the optical bypass switch) into the female DIN

connector on the APP-LMM applique, then plug the ﬁber-optic MIC cables from the

bypass switch into the PHY-A and PHY-B connectors on the FDDI applique.

Connect the FDDI cables from the network into the PHY-A and PHY-B connectors on the

optical bypass switch. Up to 100 milliamperes of current can be supplied to the optical

bypass switch. A pinout of the DIN connector on the optical bypass switch is listed in

Table 5.

Optical Bypass Switch Pinout

+5V to secondary switch

+5V to primary switch

Ground to enable primary switch

Ground to enable secondary switch

Sense circuit—1 kohm to +5V

Ground—sense circuit return

FDDI C, G, K, O