Safety Warnings and Notices

LTPH-UM-1088-02, Issue 2

 

 

SAFETY WARNINGS AND NOTICES

The ThinMux chassis DC power supply feeds must be connected to either (1) -48 Vdc Safety Extra Low Voltage (SELV) sources or (2) -48 Vdc sources that are electrically isolated from the AC sector and reliably connected to earth. The source’s fault current capacity shall be lower than 50A, or an appropriate overcurrent protection rated 5A, must be provided on each -48 Vdc conductor. The overcurrent protection can also be used as a cutoff switch if another disconnect device is not installed.

This equipment may be provided with a module that incorporates laser source(s). Refer to the module’s documentation for detailed safety information.

The telemetry I/O must be connected to either a SELV source or an ELV source that is electrically isolated from the AC sector and reliably connected to earth.

The metallic telecommunication interface should not leave the building premises unless connected to telecommunication devices providing primary and secondary protection.

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January 3, 2002

ThinMux Chassis