Guardian Technologies HR70 ユーザーズマニュアル

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Guardian Telecom Inc. 
 
 
 
Installation and Operation 
Model HR70 
 
Page 6 
 
 
 
Installing the HR70 
 
•  Follow all appropriate electrical codes and use only approved electrical 
fittings for the installation. 
 
•  Choose a wall location that is free of obstructions and permits space for ½” 
NPT conduit runs. 
•  Ensure mounting can support 4lbs (1.8kg) and any foreseeable additional 
load. 
 
•  Ensure that none of the electrical connection circuits are live. 
 
•  Remove the eight (8) cover screws from the front of the unit and carefully 
remove the front cover assembly.  NOTE that the handset and all 
electronics are attached to the front plate.  The front cover may be 
separated from the back box by disconnecting the harness plugs. 
 
•  Use the template provided or the enclosure itself to locate and drill holes for  
#8 or M4 mounting screws. 
•  Secure the enclosure to the wall. 
 
•  Bring cable into the enclosure through the conduit entrance and attach 
individual wires from the exchange (Tip/Ring/Ground) to the terminal block 
(Tip & Ring are not polarity sensitive).  If a conduit hub is used, ensure it is 
grounded to the ground stud. 
•  To change the Tone/Pulse setting to pulse, if required: 
 
o
  Move the jumper from pins 1 & 2 of the Tone/Pulse connector to 
pins 2 & 3. 
o
  To change the setting back to tone move the jumper back to pins 
1 & 2. 
•  Reconnect the faceplate harness. 
Tip: The SP70A is 
factory preset for DTMF 
tone. 
•  Ensure all connections are tight, then replace and secure the cover. 
 
•  Connect the telephone into the system. 
 
•  Test the unit by making calls to and from another unit on the exchange.