Multitech FR221 Guide de l'utilisateur télécharger pdf (Page 8)

MultiFRAD User Guide

Front Panel Description

The front panel of the FR221 has four groups of LEDs that provide the status of the LAN connection

and the general status of the MultiFRAD. The FR221/V2 has an additional group of LEDs for its two

voice/fax channels. From left to right, the first group of LEDs indicates whether the self test passed or

failed and if the power On/Off switch on the back of the MultiFRAD is switched On. The Ethernet

LEDs display LAN activity; i.e., they show whether the MultiFRAD is connected to the LAN,

transmitting or receiving packets, and if a data collision is occurring. The Composite LEDs display the

trunk (i.e., DSU) status, show whether a trunk is ready to transmit or receive serial data, and indicate

if the trunk connection (i.e., the back panel TRUNK connector) is configured for a V.35 interface. The

data Channel 1 and data Channel 2 LEDs display the status of the two data Channels, including

whether the data Channel or the attached device is ready to transmit or receive data and if the data

Channel is configured for a V.35 serial interface. Finally (on the FR221/V2 only), the voice/fax LEDs

indicate the configuration and status of these two channels.

Figure 1-2. Front Panel

BOOT The BOOT indicator lights for 75 seconds (approx.) when power is applied to the MultiFRAD.

POWER The POWER indicator lights when the Power switch is set to the “1” (up, On) position.

ETHERNET

RCV Receive indicator blinks when packets are being received from the local area network.

LNK Link indicator lights indicating that the MultiFRAD is connected to the local area network.

XMT Transmit indicator blinks when packets are being transmitted to the local area network.

COL Collision indicator lights when a collision is in progress, that is, when two nodes are

transmitting packets at the same time.

COMPOSITE (DSU, TRUNK)

RCV Receive indicator blinks when the trunk is receiving data.

CTS Clear To Send indicator lights when the trunk is ready to transmit data.

CD Carrier Detect indicator lights when the MultiFRAD detects a carrier signal on the trunk line.

LNK The composite Link LED blinks slowly when it detects the frame relay management type.

Then, when at least one DLCI goes active, it blinks quickly. When all DLCIs are active, it

remains on. In PPP mode, it remains on all the time.

XMT Transmit indicator blinks when the trunk is transmitting data.

RTS Request to Send indicator lights then the trunk is ready to receive data.

V35 The V35 indicator lights whenever the trunk is configured for a V.35 interface; i.e., the shunt

for the trunk is in the V.35 position.

EXT External indicator lights when the MultiFRAD is configured for an external composite device.

DATA CHANNELS

XMT Transmit indicator blinks when the Channel is transmitting data to the composite link.

RCV Receive indicator blinks when the Channel is receiving data from the composite link.

CTS Clear To Send indicator lights when the Channel is ready to transmit data.

XMT Transmit indicator blinks when voice packets are being transmitted to the local area network.

RCV Receive indicator blinks when voice packets are being received from the local area network.

V35 The V35 indicator lights whenever the Channel is configured for a V.35 interface; i.e., the

Channel shunt is in the V.35 position.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 112 113

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Multitech FR221 Guide de l'utilisateur Page 8

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