| GENERAL CHARACTERISTICS ITEM DESCRIPTION | THE LINE REPEATER IS A SOLID-STATE REPEATER OF NEUTRAL TELEGRAPH SIGNALS OFFERING ELECTRICAL ISOLATION BETWEEN INPUT AND OUTPUT CIRCUITS.INPUT AND OUTPUT LEVELS MAY BE EITHER 20 MA. OR 60 MA. NEUTRAL. EQUIPMENT APPLICATION TELECOM SWITCHING UNIT,MODEL TSU10,DESIGNED AND MANUFACTURED BY DIGITECH,DATA INDUSTRIES,INC.,RIDGEFIELD,CONNECTICUT |