• GENERAL

This General Specifications (GS) covers the hardware specifications of an N-IO field enclosure and its

related products (A2NN70D style S2. A2NN60D style S2. A2CB60 style S2. and A2CX100). The N-IO field

enclosure (A2NN70D) [System model (*1): A2ZN70D] is a standardized remote I/O enclosure for outdoor

use, which provides the accessories including field power supply units with optimized design. The N-IO

field enclosure consists of two components, one is a dedicated enclosure with terminal blocks and the

other is a base unit with an N-IO node including field power supply units. It is possible to order the

enclosure (A2CB60) and the base unit (A2NN60D)

[System model (*1): A2ZN60D] individually. In the individual orders, the base unit can be shipped

separately from the enclosure. Then this enables the user to install the base unit into the enclosure at a

suitable timing. This is defined as “Flexible installation”. The flexible installation allows a project to

perform the acceptance test using the base unit at factory in parallel with field wiring work to the

enclosure at the customer site. And the flexible installationminim izes the exposure of the base unit to the

harsh environment such as dust, water, and electromagnetic noise by keeping the base unit in the

warehouse during field wiring work to the enclosure.