Avaya FDDI Net Modules in ASN Platforms Manual do Utilizador descarregar pdf (Página 36)

Installing FDDI Net Modules in ASN Platforms

2-2 115369-A Rev. A

Except for the name and order number in the upper-right corner of the net module,

the hybrid net modules look like the Single-Mode and Multimode FDDI net

modules.

able 2-1 describes the FDDI net module LEDs.

Table 2-1. Functions of the FDDI Net Module LEDs

LED Function

SD Indicates the detection of an incoming signal.

TX Indicates that the FDDI is transmitting across the interface.

S (Secondary) and

P (Primary)

Indicate whether the router is absent or present on the FDDI

ring.

The S and P LEDs light only when a dual bypass switch

module is connected to the RJ-11 jack on the FDDI display

panel and the switch is in Operate mode. (The switch is in

Operate mode during normal FDDI net module operation.)

The S and P LEDs remain lit when the router is part of the

FDDI ring. The S and P LEDs turn off when the bypass switch

circumvents the physical connectors A and B and redirects the

incoming and outgoing signals to its own connectors. This

occurs whenever

– The router is turned off

– The router is reset

– The FDDI circuit is disabled

F (FAIL) Lights during power up, and might ﬂash during diagnostic

testing. The FAIL LED turns off once the diagnostics complete

successfully and the router boots.

The LED remains lit if the net module or any connector on the

net module fails diagnostics. In this case, the DIAG LED on

the ASN front panel will also be on.

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Avaya FDDI Net Modules in ASN Platforms Manual do Utilizador Página 36