Hardware Installation
151068
4-13
4.7.3
SK-2880 Installation
The SK-2880 is an Input/Output module. The SK-2880 has 34 pre-defined open collector
outputs (see Table 4-6) that can be used to drive LEDs, interface with other controls or
systems, or control one of the three built-in Form C relays. See Figure 4-13, Figure 4-15 and
Figure 4-16.
The SK-2880 also has two supervised inputs used for Reset and Silence. See Figure 4-16.
Figure 4-13 Components of the SK-2880 I/O Module
SK-2880 Specifications
Table 4-4: Specifications
Circuit
Rating
Max. Circuit Resistance:
Data
25
Ω
-
25
Ω
+
25
Ω
Max. Current:
Alarm:
35 mA
Standby:
35 mA
Open Collector: 20 mA each or 680 mA total
Operating Voltage:
24 VDC
Operating Temperature:
32° - 120° F (0° - 49° C)
Form C Relays
2.5 A @ 30 VDC Resistive
Silence/Reset Inputs
Max. Short
circuit current:
2.8 mA
Reset/Silence
Switch Inputs
Form C
Relay 1
Form C
Relay 2
Form C
Relay 3
Serial Communication
Terminals
Status
LED
Open Collector
Outputs
Terminal
Strip 1
Terminal
Strip 2
ID
Dip Switches
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