Wiring and Connecting AC Power
102 7705 SAR-M Chassis Installation Guide
Wiring and Connecting AC Power
Warnings and Notes
Danger:
• Only qualified personnel should install or replace this equipment.
• Turn OFF power at the power source before you install or remove power cables or
cords.
• Before working on equipment that is connected to power, remove jewelry, such as rings,
necklaces, and watches. When metal objects are in contact with power and ground,
serious burns can occur or the objects can be welded to the terminals.
• You must use cables that meet local electrical code requirements.
Warning:
• Do not install equipment that appears to be damaged.
• Do not connect the AC power converter to a +24 VDC 7705 SAR-M system. The AC
power converter operates at 120/240 VAC and provides true -48 VDC output that will
damage components if connected to a +24 VDC system.
• The router and equipment rack must be properly grounded. Electrostatic discharge
(ESD) damage can occur if components are mishandled.
• Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap
to a nearby ground point that is connected to the site grounding point when working on
the 7705 SAR-M. Typical ground points include the ground connection point on the front
of the 7705 SAR-M (but only after the 7705 SAR-M is installed and the chassis ground
wire has been connected), the grounding stud on the 7705 SAR-M right-hand side
mounting bracket, or a properly grounded rack or work bench.
Note: The 7705 SAR-M requires a minimum of one AC power source to operate, but using
two AC power sources is recommended for redundancy. Ideally, the AC power sources
should be connected to separate breakers or to a split receptacle.