GENERAL
INSTALLATION
MODEM
PC & SOFTWARE
FAULT FINDING
CONNECTORS & CABLES
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MULTIPLE PHONE SOCKETS - MODEM REMOTE FROM MASTER SOCKET
OR ENTRY POINT
Caution |
Unless you have experience in telephony and data cabling, it is
strongly recommended that you enlist expert help with this installation.
Because of the many possible configurations, detailed instructions
cannot be given.
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Modem Remote from Entry Point or Master Socket |
If the required modem location is remote from the entry point of the
customer’s telephone line and the master socket, new cable will have to
be run.
The existing premises wiring should be broken either at the DSL entry
point, master socket, or at a convenient point between, and a two
twisted-pair cable run to a position adjacent to the proposed modem. This
will extend both the DSL and the Phone equipment lines to the modem
location. In some cases, new cable may not be needed, if the original
house wiring passes close to the modem location and has enough spare
twisted pairs.
A wall socket should be fitted at the modem location, and connection
made with the supplied cable, as previously explained.
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Use of Customer Phone Wiring for DSL |
When using part of the customer’s original telephone wiring as the
DSL feed to the modem, care should be taken to ensure that the cables used
are "twisted pairs" which have good immunity to electrical
interference.
If third wire ringing was used for multiple phones, this must be
removed, from the section of wiring used for the DSL, to prevent
interference pick up.
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Phone Wiring |
The phone output of the IDSL MODEM can usually be connected to the
existing customer premises phone wiring, without further modification.
Caution: External wiring, which might be subject to high voltage surges
must not be connected to the IDSL MODEM Phone port.
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Modem Connections |
All connections to the IDSL MODEM are made via sockets on the back
panel.
- Connect the RJ-45 (DSL / Telephony combined port) to the wall
mounted (country specific) socket using the cable provided.
- Connect the female DB9 connector (RS-232 interface, V.24 data port)
to the serial port (COM port) of the PC, using the supplied cable.
- Connect a desk phone to the RJ-11 socket, if required.
- Connect the low voltage dc output of the mains adapter to the 2.5mm
power socket (centre positive).
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MODEM CONNECTION SCHEMATIC
Maintenance of Telephone Service During Installation |
If the modem is installed prior to the LT (its companion exchange
equipment) but not powered up, metallic bypass circuits will preserve the
connection from the telephone to the incoming line. |
Interruption
of Telephone Service |
As a result of modifications
to the house wiring, telephone service will only be available when the
Modem is connected to the Master Socket. |
Multiple Telephones |
Multiple telephones may be included in the Phone circuit, but cordless
phones should be at least 3m from the modem.
As with conventional copper circuits, transmission performance may be
impaired if more than one telephone is off-hook at the same time.
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Earthing (Grounding) |
The IDSL MODEM is designed to operate without a local earth connection.
Do not earth the IDSL MODEM.
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Mains Power |
The modem must be powered from the local mains, using the supplied plug-pack
adapter. The mains outlet should not be shared by other equipment,
which might generate mains-born RF interference. This would include such
equipment as TV sets, microwave ovens, Ham Radio transceivers etc.
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Market Specific Power Adapter |
Check that the power adapter supplied with the IDSL MODEM is correctly
rated for the voltage and frequency of the local mains supply.
Use of a non-approved power supply will negate the equipment
warranty.
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