Transformateur/convertisseur correspondant entrée de ligne/sortie de ligne 105A expédition

LineInput/LineOutput

MatchingTransformer / Converter Model 105A

Model 105A

TheAT&T105ALineInput/LineOutputMatchingTransformer / Converterisdesignedtomatcheitherahigh-impedance input,oroutputofan amplifier,toa500/600ohmline.Itmaybeusedtoconnecttelephonesystemstomostamplifiers,orfordistributingbackgroundmusic

thatistransmittedoverleasedtelephonelines.The unit also functions as anoutput-matching Transformer / Converter to feed pro- gram material over a500/600-ohm telephone line for transmission to a local broadcast studio.

The 105Aprovidesan impedance match between the 500/600-ohmbalanced line and thehigh-impedance(auxiliary) input oftheamplifier,orthe25-voltoutputoftheamplifier.The500/600-ohmlineinputoroutputconnectionsaremadetoamodular jack.Connectiontotheamplifieris provided by an RCA jack.

INPUT MATCHING TRANSFORMER / CONVERTER

To match the input from a 500/600-ohm line,proceed as follows:

1.Insert one end of the modular cord (packaged with the coupler) into the modularjack on 10A coupler, andinserttheotherendofthemodularcordintoconnecttheinputfromthe500/600-ohmline

2.Insertone end of an audio cord with anRCA phono plug into the RCAphonojack on the 105A coupler. Insert the other end of the audio cord intotheRCA phonotoahigh-impedanceontheamplifier, usually theAUX receptacle.

OUTPUT MATCHING TRANSFORMER / CONVERTER

To match the output to a 500/600-ohm line,proceed as follows:

1.Insert one end of the modular cord (packagedwith the coupler) into the modular jack on 10A coupler, and insert the otherend of the modular cord into connect the output from the 500/600-ohm of balanceline.

2.Insert one end of an audio cord with an RCAphono plug into the RCA phono jack on the 105A coupler. Insert the other end ofthe audio cord into the RCA phono to marked 105A HI-Z OUTPUT on the amplifieroutput chassis ordevice

Note

Whenthe105Aisusedasabridgingoutput,itdoesnotdrawanypowerfromtheamplifier.