Cisco Cisco IPS 4255 Sensor Guida All'Installazione

If an electrical accident occurs, proceed as follows:

Use caution; do not become a victim yourself.

Disconnect power from the system.

If possible, send another person to get medical aid. Otherwise, assess the condition of the victim 
and then call for help.

Determine if the person needs rescue breathing or external cardiac compressions; then take 
appropriate action. 

Use the chassis within its marked electrical ratings and product usage instructions.

Install the sensor in compliance with local and national electrical codes as listed in 

The sensor models equipped with AC-input power supplies are shipped with a 3-wire electrical cord 
with a grounding-type plug that fits only a grounding-type power outlet. This is a safety feature that 
you should not circumvent. Equipment grounding should comply with local and national electrical 
codes.

The sensor models equipped with DC-input power supplies must be terminated with the DC input 
wiring on a DC source capable of supplying at least 15 amps. A 15-amp circuit breaker is required 
at the 48 VDC facility power source. An easily accessible disconnect device should be incorporated 
into the facility wiring. Be sure to connect the grounding wire conduit to a solid earth ground. We 
recommend that you use a Listed closed-loop ring to terminate the ground conductor at the ground 
stud. The DC return connection to this system is to remain isolated from the system frame and 
chassis.

Other DC power guidelines are listed in 

Work on ESD-sensitive parts only at an approved static-safe station on a grounded static dissipative work 
surface, for example, an ESD workbench or static dissipative mat.

To remove and replace components in a sensor, follow these steps:

Remove all static-generating items from your work area.

Use a static dissipative work surface and wrist strap.

Disposable wrist straps, typically those included with an upgrade part, are designed for one time 
use.