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Appendix A FAQs
1
All indicators are off after the ZXDSL 831/831B/831II/831BII equipment is
powered on
First make sure that you have inserted the power adapter of the ZXDSL
831/831B/831II/831BII into a working power socket and that the ZXDSL
831/831B/831II/831BII has been powered on (the switch button is pressed down). If
the indicators are still off after confirmation of the above items, the hardware is
damaged probably. You may contact local operators for maintenance. Never
dismantle the equipment by yourself.
2
Will ADSL affect the telephone conversation quality? Will making phone calls
cause a slow online rate?
ADSL separates voices from data through the frequency division multiplexing
technology. Therefore, voices and data run in different paths without mutual
interference. Neither the access rate nor conversation quality will fall even if you are
in a call and on line simultaneously.
3
How to properly install telephone extensions or other devices on the ADSL line?
It is recommended to first connect the ADSL splitter to the incoming customer end of
the telephone cable, and then connect the phone sets to the splitter interfaces.
Installing a telephone directly before the splitter will lead to a failure of connection
between the ZXDSL 831/831B/831II/831BII and the device at central office side, or
a failure of access into the Internet, or a slow connection speed.Connecting some
other electronic devices between the incoming customer end and splitter may affect
the ADSL communications (since ADSL has a higher requirement for the line
quality) and furthermore affect the normal operation of ADSL. If the phone sets are
required to be connected before the splitter, you should serially connect the filter
MicroFilter before the phone sets (Generally, to minimize interference, only one
filter MicroFilter can be hang before the splitter).
4
Sometimes, the ADSL users cannot gain access to the Internet normally
First check whether the ZXDSL 831/831B/831II/831BII is in the normal state
(Check the indicators with this user manual). If yes, the computer or application
network may be faulty, which is unrelated with ADSL. If the ADSL Modem is
abnormal, check the status of indicators one by one to remove the fault.
You are suggested to first make sure the following items before seeking help from
operators: 1. The ADSL telephone cable connectors are proper; 2. The ADSL is away
from the power cable and large-power electronic devices; 3. No telephone extensions
and fax machines are installed between the ADSL incoming line and splitter; 4. The
splitter has been correctly installed; 5. The ADSL MODEM is of good heat
dissipation.
