Cisco 1605R Guia de Instalação descarregar pdf (Página 55)

Connecting WAN and Voice Interface Cards to a Network 3-7

1-Port BRI S/T WAN Cards (WIC36-1B-S/T, WIC-1B-S/T)

You can distinguish between WIC36 and WIC models of a BRI WAN interface card by the

location and labeling of the LEDS, and the number and location of cutouts in the faceplate.

1-Port BRI S/T WAN Cards (WIC36-1B-S/T, WIC-1B-S/T)

The 1-Port ISDN-BRI WAN interface cards (WIC36-1B-S/T, WIC-1B-S/T) connect to an

ISDN WAN through an external NT1 device. (See Figure 3-5 and Figure 3-6.) This

interface is also known as an S/T interface.

1-Port BRI with NT1 WAN Cards (WIC36-1B-U, WIC-1B-U)

The 1-Port ISDN-BRI with NT1 WAN interface cards (WIC36-1B-U, WIC-1B-U) connect

to an ISDN WAN using a built-in NT1 device. (See Figure 3-7 and Figure 3-8.) This

interface is also known as a U interface.

Figure 3-5 1-Port ISDN BRI WAN Interface Card (S/T Interface) (WIC36-1B-S/T)

BRI

S/T

SEE MANUAL BEFORE INSTALLATION

LEDs

BRI S/T port

H7211

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Cisco 1605R Guia de Instalação Página 55