Allied-telesis AT-AR256E Uživatelský manuál stáhnout pdf (Strana 33)

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5.4 The DSL Link LED Is Always Off

1. Make sure you have a ADSL service. You should get some kind of information from

your ISP that states that the ADSL service is enabled. You can usually tell if the

service is enabled by listening to the phone line; you will hear some high-pitched

noise. If you do not hear high-pitched noise, contact your ISP.

2. Verify that the telephone cable is connected directly to the telephone wall socket and

the DSL input on the ADSL router.

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Allied-telesis AT-AR256E Uživatelský manuál Strana 33