Edwards Signaling SA-CLA Class A Interface Card - Manuel

© 2013 UTC Fire & Security. All rights reserved. 1 / 2 P/N 3101094 • REV 03 • REB 25JAN13
SA-CLA Class A Interface Card
Installation Sheet
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EN: Installation Sheet
Operation
The SA-CLA card allows NAC Class A wiring of the 64 point
control panel. The card's terminal block provides the wiring
connection for the NAC Class A return.
Installation
The Class A card is installed directly onto the control panel
circuit board using plastic standoffs and a plug connector.
To install the Class A card:
1. Power down the panel and disconnect the batteries.
2. Locate connector J2 (at the bottom-right of the main circuit
board).
3. Connect the card to connector J2 as shown in the diagram
below. Make sure you properly align the connector pins
and plastic mounting standoffs.
4. Connect the field wiring. See “Wiring.”
5. Power up the panel and connect the batteries.
Figure 1: SA-CLA installation
Connector J2
Class A card Plastic mounting standoffs
Bottom-right of
main circuit
board
Wiring
The wiring connections on the Class A card are used when
wiring NACs Class A.
Figure 2: SA-CLA wiring
Class A card installed
on main circuit board
NAC1–
NAC2+
NAC2–
NAC1+
+
+
–
–
TB2 on main
circuit board
Specifications
Operating voltage 24 VDC
Operating current Standby: 3 mA
Alarm/Max.: 60 mA
Max. resistance
26 Ω
Max. capacitance 0.35 µF
Max. current 2.5 A per circuit
Terminal rating 12 to 18 AWG (0.75 to 2.5 mm 2 )
Ground fault impedance
0 to 5 kΩ
Operating environment
Temperature
Humidity
32 to 120°F (0 to 49°C)
0 to 93% RH, noncondensing at
90°F (32°C)