NCR 7870 manual Circuit B, Circuit C

3-14 Chapter 3: Site Preparation

Circuit B

The ground conductor in Circuit B (to the host terminal) is an isolated, insulated ground – it must be isolated from the outlet box for the host terminal. The circuit breaker in the power conductor of Circuit B is optional. If used, it should be near the operator and recessed.

Circuit C

The power conductor in Circuit C (to the NCR 7870) should include a 15 Amp circuit breaker located near the operator. The circuit breaker should be recessed to prevent being accidentally switched on or off.

Note: The outlet boxes for the NCR equipment must be isolated and insulated from the ground conductor, convenient to the equipment, readily accessible, and labeled as exclusively for use with NCR equipment.