Motorola Canopy Backhaul Module Guía de usuario descargar pdf (Pagina 78)

45 Mbps Backhaul User Guide

Issue 3, December 2004 Page 77 of 113

7.1.2 Ethernet

The Ethernet LED is driven from the ODU processor and thus is capable of informing you of many conditions

using different flash sequences. If the Ethernet indicator does not illuminate at all there are four possible

conditions.

1. There is no power reaching the ODU because of a wiring fault

2. The ODU is faulty

3. The PIDU is faulty

4. The Ethernet network side is faulty

Look at the following table to check the LED response for power up, disconnect the power and reapply and note

what happens.

Differentiating between 1--3 and 4 can be achieved by removing the power for 1 second. Watch the Ethernet

indicator for 1 minute, if it never flashes then the problem is 1—3. Take the jumper (J906) out of the PIDU and

check the current taken by the ODU. This should be 300mA to 1A when starting through to running normally.

If the Ethernet indicator flashes to begin with but then stops flashing then ODU is powered and software loaded

but ethernet connectivity has been lost between the ODU and the users connected equipment. All ethernet

connections should be rechecked.

Power Indoor Unit LED check chart:

Mode

Green LED

Yellow LED

No Ethernet Cable

Connected

Yellow LED

Ethernet Cable

Connected between

PIDU and

NIC/Switch/Hub

No Power Applied

Off

Power Applied

Will flash once per

second regularly

approximately 16

seconds after power

applied for 10

seconds then will go

out and stay out

Will flash once per

second regularly

approximately 16

seconds after power

applied for 10

seconds then

operate as Ethernet

Link/Activity LED

Valid Ethernet Link

and no traffic

N/A

Will be on solid for a

valid link.

Valid Ethernet Link

with traffic

N/A

Will be on solid, but

will blink randomly as

traffic passes through

While Reset Switch

Pressed

Off

Reset Switch

Pressed and

released within 10

seconds during

normal operation

Off

Off while switch

pressed but returns

to LINK/Activity state

when released. No

reset will take place

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