FUNCTIONS 1.Judge continuty of the cables or wires. 2.Track the cables or wires,and diagnose the break point. 3.Receive the tone signal on the cables or wires(telephone line). 4.Idengtify the state in the working telephone line (clear,ring,busy). 5.Send a single solid tone or dual alternating tone to the object cables or wires. OPERATION INSTRUCTION TEST CONTINUITY 1.Use the Sender(switch to "CONT") Connent the test leads to the object pair, use"CONT"postion. The bright green of"CONT"indicates the continuity.(line resistance not exceeding 10k.) 2.Use the Sender (switch to "TONE") a.Connect the test leads to a pair of cables,touch Receiver to the cables. If the two cables give larger and same tones, it means both of them have continuity. Otherwise the cable which gives lower tone doesn't have continuity. b.Connect one test lead to one cable among a group of cables, connect another test lead and the other cables to earth ground.Touch the tipof Receiver to another end of cable mentioned above. Reception of tone means that the cable has continuity. IDENTIFY THE STATE OF WORKING TELEPHONE LINE USE SENDER(SWITCH TO"OFF") 1. Identify TIP&RING: Connect the red test lead to the side of one line and the black test lead to the side of another line. a."CONT"indicator light is "green"when you connect the red test lead to the Ring(-)side. b."CONT"indicator light is "red"when you connect the red test lead to the TIP(-)side. 2. Identify CLEAR, RINGING, BUSY state on the working telephone line: Connect the red test lead to the RING side, black test lead to the TIP side, or connect RJ11 into the RJ11 socket on telephone. a."CONT"indicator is"green", indicates a CLEAR Line.If"CONT"indicator light is"red", it means the polarities were reversed. b."CONT"indicator does not glow or glow faintly, indicates a BUSY line. c."CONT"indicator light brightly flickering "YELLOW", indicates a RINGINGline.(Switch to "CONT"will terminate the call on the line) BATTERY REPLACEMENT 1.Sender Battery replacement: Remove the screw on the back case, remove the back case, replace the exhausted battery with a new one of 9v(6F22). Rejoin the back case and installthe screw. 2.Receiver Battery replacement: Remove the screw on the battery compartment, remove the battery cover,replace the exhausted battery with a new one of 9v(6F22). Rejoin the cover andinstall the screw.