Johnson Controls tyco iSTAR Edge G2 User Manual

9
NO/NC Double Resistor 1K
This is the standard Software House method of supervision.
1K Ω is considered Secure and 500 Ω or 2K Ω are considered Alert. The wiring for NO and NC is different, as shown in
Figure 2.
Figure 2:NO / NC Double Resistor 1K
The NO/NC Double Resistor method will report:
■ Short
■ Normal / Secure (1K)
■ Alert (500 Ω or 2K)
■ Open (>30K)
■ Line Fault (Any unexpected value). This is usually due to faulty resistors or incorrect resistor values.

Johnson Controls tyco iSTAR Edge G2 Specifications

General

Brand	Johnson Controls
Model	tyco iSTAR Edge G2
Category	Controller
Language	English