Stage
253 mots
2 pages
Chassis NS1:The NS1 chassis is an interface between the campaign and the switcher.
It enables efficient and cable distribution.
The chassis is composed of relay triggering and electronic devices.
Generally the structure of the chassis is achieved with aluminium profiles vertical and horizontal. Masses of structure about 75 Kg. They can be installed:
-. either alone-backed a wall
-. either side by side to form a row of chassis.
Châssis NS1 : Photos of a relay NS1:.
Chassis NS1 is located in a post or centre. The wire must be put in the width, it facilitates the passage of wires.
There is a logical order to wire its chassis in good condition:
-Implementation of coding, all equipment plugs on the chassis is encoded, encoding plugs prevent us from asking a relay to the wrong location. Important for maintenance.
-Implementation of the CFP 12, PFO and PFC O. On the PFC.0 we add the letters ABC to encodings. It is on a PFC12 apparatus NS1 is fixed.
Development:
Generally, front must give access to the equipment and on the other side the rear face must give access to the wiring of equipment.
The provision of equipment in cabinets must be made to facilitate their inspection, their troubleshooting and maintenance. This provision must be made
According to a logical order. In each cabinets available spaces shall be provided so that
TN (the Agence métropolitaine de transport) can later add additional equipment. These spaces must be the order of ten percent of the occupied