Spectracom SecureSync User Reference Manual page 36

2.5 SAFETY
20
IF THE EQUIPMENT MUST BE OPENED:
Never remove the cover or blank option card plates with power applied to this equip-
ment. Ensure all power sources are removed from the unit prior to installing any
option cards by removing both the AC and DC power cords connected to the equip-
ment.
This unit will contain more than one power source if both the AC and DC power
options are present. In this case, turning off the rear panel power switch will not
remove all power sources.
DANGER! — FUSING:
The equipment has Double Pole/Neutral Line Fusing on AC power.
For continued protection against risk of fire, replace fuses only with same type and
rating of fuse.
— GROUNDING:
DANGER!
This equipment must be EARTH GROUNDED. Never defeat the ground connector
or operate the equipment in the absence of a suitably installed earth ground con-
nection. Contact the appropriate electrical inspection authority or an electrician if you
are uncertain that suitable grounding is available.
The AC and DC power connectors of this equipment have a connection to the
earthed conductor of the AC and DC supply earthing conductor through the AC and
DC power cords. The AC source outlet must contain a protective earthing con-
nection.
This equipment shall be connected directly to the AC power outlet earthing pin or DC
supply system earthing electrode conductor.
The DC supply source is to be located within the same premises as this equipment:
The equipment shall be located in the same immediate area (such as, adjacent cab-
inets) as any other equipment that has a connection to the earthing conductor of the
same AC or DC supply circuit earthing conductor, and also the point of earthing of
the AC or DC system. The AC or DC system shall not be earthed elsewhere.
Switches or other disconnection devices shall not be in the earthed circuit conductor
between the AC and DC source and the point of the connection of the earthing
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2 SecureSync User Reference Guide Rev. 18