Wiring and Connecting the 100W High Voltage Power Supply to the 7705 SAR-A
88 7705 SAR-A Chassis Installation Guide
Wiring and Connecting the 100W High Voltage 
Power Supply to the 7705 SAR-A
Danger: 
• For high-voltage DC installations, fuses or breakers must be approved for the applicable 
DC voltage.
• 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: 
• The 100W High Voltage Power Supply must not be installed in the same compartment 
as the batteries, which can give off gas. Out-gassing from batteries could not only have 
corrosive effects, but could also result in an explosion. If batteries are located in the 
same cabinet, the battery compartment must be completely sealed off from all other 
equipment and must be properly ventilated for safety as required by product safety 
standards and local codes and statutes.
• Do not install equipment that appears to be damaged.
• 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-A. 
Note: 
• Ensure that you read and observe all the dangers and warnings described in this 
chapter and the Site Preparation chapter before wiring and connecting power to the 
7705 SAR-A.
• The 7705 SAR-A requires a minimum of one power source to operate, but using two 
power sources is recommended for redundancy. For AC installations, ideally the power 
sources should be connected to separate breakers or to a split receptacle.
• For the 100W High Voltage Power Supply, the means of disconnect is the IEC inlet on 
the unit.