Users Manual

Outdoor Software Defined Radio (OSDR) platform
Installation & Cabling Manual - Edition 3.0
7
Safety Precautions, Continued
Proper Grounding Installation & Equipotential Bonding
Never power on OSDR equipment unless you have completed the
grounding installation.
There is risk of equipment failure and / or electrical shock.
Ensure that:
• The grounding system measures an appropriate path resistance as specified
by local regulations.
• An appropriate grounding bar (or terminal) exists at the proximity of each
equipment installation position.
• The equipment is intended to be installed in location only where the
equipotential bonding has been applied.
Local AC Power Source
Ensure that:
• Safety requirements require a single pole circuit-breaker to be employed
between the local power DC source and outdoor AC PoNE.
• The circuit breaker must disconnect the mains phase of the AC power.
•
For circuit breaker requirements refer to Circuit breakers on page 49.
Local DC Power Source
Ensure that:
• Safety requirements require a single pole circuit-breaker to be employed
between the local power DC source and outdoor DC PoNE.
• The circuit-breaker must control (open / close) the negative (-) V pole of the
power supply.
• The positive pole (+) V of the Local DC Power Source, which the wire of DC
power cable is terminated on, is grounded.
•
For circuit breaker requirements refer to Circuit breakers on page 49.
AC & DC Power Supply Cables
Ensure that:
• Power source cables must be tested for short circuits, open circuit or wrong
wiring before installed.
• The ground wire of the AC power source cable must be connected to the
protective earth (ground) point of the mains electricity installation.
Continued on next page