ASL INTERCOM PS 155 Instrukcja Użytkownika Pobierz pdf (Strona 7)

PAGE 7

User Manual PS 155 / October 2013 © ASL Intercom BV

7.0 SIDE TONE ADJUSTMENT PROCEDURE (PARTY LINE)

To adjust the side tone, proceed as follows:

• Connect the PS 155 to the wireless unit

• If the wireless unit has a volume control

turn it down to approx. 10%;

a volume that is too high may cause

problems such as distortion

• Connect the PS 155 to the party line of

the wired ASL intercom system

• Put the SEND and RECEIVE volumes of

the PS 155 in the 12 o’clock position

• Push the ‘Test Tone’ button with a pen or

pencil

• Listen to one of the wireless units (not the

one which has the connection cable)

• Adjust the 3 side tone trimmers so that at

the wireless unit the test tone listen level

is set to a minimum. First the LEVEL

trimmer and then the HIGH and the LOW

trimmer.

• If needed, the SEND volume of the PS

155 can be turned up while adjusting the

trimmers

• Repeat the adjustment of the trimmers

over and over until you are sure that you

have obtained the minimum listen level

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ASL INTERCOM PS 155 Instrukcja Użytkownika Strona 7