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4.11  Attaching and Detaching External I/O Signal Cable 
  Before attaching or detaching an external I/O signal cable to or from the 
TSL3000E/TSL3100E robot controller, be sure to turn off the main power in the 
user's control panel. 
Fig. 4.7 Attaching and detaching external I/O signal cable 
  To connect an external I/O signal cable, completely insert the cable side connector 
into the controller side connector and tighten the lock screws on both sides of the 
connector with a screwdriver. 
To disconnect the cable, loosen the lock screws, then pull out the connector.    At 
this time, DO NOT pull the cable instead of the connector.    Otherwise, an 
excessive force will be exerted on the cable, resulting in damage of the cable. 
 
When attaching or detaching the cable, be sure to hold 
the connector rather than the cable. 
To be 
tightened
To be 
loosened.
Connector on cable side
D-sub 
connector
Connector on controller side