Pin Assignments For Nac 2; X5 Nac 2 Class A And Nac 2-1 And Nac 2-2 Class B Terminal Block - Siemens FC2025 Manual

Pin Assignments for NAC 2

17.4

17.4.1 X5 NAC 2 class A and NAC 2-1 and NAC 2-2 class B terminal block

Pin
4
3
2
1
Admissible cable cross-section: 1 x 12...18 AWG or 2 x 16...18 AWG
Pin assignment for NAC circuit class A
Pin assignment for NAC circuit class B
* EOL resistance must be connected during non-use. EOL resistance: 2.4 kΩ,
0.5 W.
Siemens Industry, Inc.
Building Technologies Division
Designation Description
NAC2-1 (+) Positive feed for notification appliances for NAC 2 class A or NAC 2
NAC2-1 (-) Return feed for notification appliances for NAC 2 class A or NAC 2
NAC2-2 (+) Positive feed for notification appliances for NAC 2 class A or NAC 2
NAC2-2 (-) Return feed for notification appliances for NAC 2
The jumpers must be set correctly for the class A/B selection.
X5
+
NAC2-1
-
NAC2-1
+
NAC2-2
-
NAC2-2
X5
+
NAC2-1
-
NAC2-1
+
NAC2-2
-
NAC2-2
+
4
-
3
2
1
+
4
-
3
*
2
EOL
1
FS20 Marine Fire Detection Control Panel
+
-
+
EOL
-
95
A6V10519176_enUS_b