TYCO 
EXI800
LOOP INTERFACE MODULE 
514.001.063

THE EXI800 INTERFACE MODULE, USED WITH A GALVANIC ISOLATOR, PROVIDES A PATH FOR AN MX PANEL TO TRANSPARENTLY COMMUNICATE TO SLAVE DEVICES CONNECTED TO THE INTRINSICALLY SAFE LOOP. THE INTERFACE REDUCES THE STANDARD MX LOOP SUPPLY VOLTAGE AND SIGNALLING CURRENTS TO LEVELS THAT ARE ACCEPTABLE FOR HAZARDOUS AREAS. THE EXI800 CAN DETECT A SHORT CIRCUIT ON THE LEFT-LOOP, THE RIGHT-LOOP, OR THE IS LOOP AND WILL ISOLATE THE OFFENDING LOOP CONNECTIONS FROM THE OTHER LOOP CONNECTIONS.