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14
Connecting Devices
The operation of a communications system can be impaired by interference in the
power supply caused by other equipment, especially photocopiers, laser printers,
electric typewriters, air conditioning, fan heaters, vacuum cleaners and refrigerators.
For this reason, please:
• Connect the Eumex 504PC SE to a socket as far away as possible from sockets
used for the above-mentioned equipment. The best solution is to use a separate cir-
cuit for the Eumex 504PC SE.
• Ensure that the AC adapter is always seated securely in its socket. Adapters or sock-
ets not firmly secured can lead to faulty operation and possibly fires!
Have such sources of danger repaired by qualified personnel without delay.
• Only use multiple sockets that are adequately safe. This can be assumed only if the
multiple socket displays the proof of its compliance with safety standards (e.g. the
CE symbol). Failure to observe this can lead to faulty operation of the Eumex 504PC
SE, and even fires.
Connect the Eumex 504PC SE to the mains supply. The connector socket for the AC
adapter is on the lower side of the Eumex 504PC SE. Insert the corresponding power
cable plug into the socket , then insert the AC adapter into the mains power socket.
When the T-ISDN LED lights up, it means that the NTBA is operational. If the LED
flashes, it means that external calls are not possible.
You can operate your equipment using the factory settings – you won’t miss a single
call (see the chapter entitled "Default Settings" on p. 17). In this setting, incoming calls
are signalled simultaneously on all terminals. External calls can only be made to spe-
cific terminals when you have assigned them MSNs. Please refer to the chapter enti-
tled "Configuring the System" for information on this procedure.
In the case of faulty operation, please also refer to the notes in the Appendix (p. 99).