Rockwell Automation 1756-SYNCH ControlLogix SynchLink Module User Manual - Manual (Page 32)

Publication 1756-UM521C-EN-P - July 2004
3-4 SynchLink Module Features
Status Indicator (LED) Information
The ControlLogix SynchLink module has status indicators (LED) on
the front of the module that allow you to check the module health
and operational status.
With the LED indicators, you can check:
• SynchLink and ControlLogix backplane status
• Module health status
For examples of LED indicators, see page 6-1.
Class I Division 2 Certification
The ControlLogix SynchLink module is certified for use in
nonhazardous locations as well as Class I, Division 2 hazardous
Locations containing gas groups A, B, C, and D. This equipment may
be used as a component of a control system which is certified to
operate in hazardous locations.
Agency Certification
When the SynchLink module is marked appropriately, the following
agency certifications apply:
• UL Listed Industrial Control Equipment
• CSA Certified Process Control Equipment
• CSA Certified for Class I, Division 2 Hazardous Locations
WARNING
When you insert or remove the module while
backplane power is on, an electrical arc can occur.
This could cause an explosion in hazardous location
installations. Be sure that power is removed or the
area is nonhazardous before proceeding.