Details: draft ors/'i'ds of t line exchanpesino.parameters specilications trial directive1 switch boaidringing range15 lines extendable to loo lines boo will check practically.2 ring to and from magnetosubscriber through line loopresistance of 1o kilo ohmboo will check practically..) speech range operator to subscriber and vice boo will check practically.versa through max loss of 4o db.af response 3oo hz to 3 khz4 indicator sensitivity indicator led (light emittingdiode) should light up whenoperator through a max. of 10kilo ohms series resistance whenconnected to a standard magnetohand generator & while batteryoperated.boo will check practicallyand physically.5 working ofexchangesignalling range: freq 16 to 5o llzopen circuit ringing voltage:75-90v+ 5oloboo will check practically.6 magneto/ dtmfexchange working(as per userrequirement)a loop resistance of 350o ohmhaving minimum 10 kilo ohminsulation resistance.boo witl check practically.7 autoworkingexchange dc loop resistance of l0o0 ohmhaving
Sector: Police and Internal Security