Description
1
5 | 14
Siemens Industry, Inc.
A6V10315036_d_en_--
Building Technologies Division
2018-03-16
1 Description
The notification appliance expansion module (NAC) provides an additional class A
circuit or 2 additional class B circuits. Each class A circuit or each of the two class B
circuits has a rating of 3 A. The header is connected to X901 on the periphery board.
The same jumpers have to be configured on the card as with the periphery board for
class A/B circuit selection and degraded mode. All jumpers must be configured, and
the module in place on X901 before power is applied to the system.
Properties
●
Additional NAC circuits with 3 A power for one class A circuit or 3 A for each class
B circuit
●
Protected against voltage surge and shorted outputs
●
Circuit monitored for short, open, and ground fault
●
Ground faults detected at <1 k
Ω
●
Circuits are power limited
