Sensaphone 400 User Manual

Page 30

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SENSAPHONE 400 User’s Manual

1 C

ZONES

2 C

3 C

4 C

~

~

~

~

Multiple normally-closed

sensors wired in series

(example using Input 2)

Alert condition

occurs when a

switch is opened

Figure 2-8. Multiple Normally Closed Sensors

To wire several normally open sensors to one alert zone, connect them

in parallel. To do this, take one lead from each sensor and attach it to the

numbered terminal. Then, take the second lead from each sensor and

attach each to the corresponding common screw. Refer to Figure 2-9.

Alert condition occurs

when a normally open

switch closes.

1 C

ZONES

2 C

3 C

4 C

Figure 2-9 Multiple Normally Open Sensors