Technical data

Chapter 4: Installation
4.4.3 Installing Field Wiring Connections
NOTE: The terminal blocks on the SP40S Multi-Function Facility Communication System are removable. To
remove a terminal block, pull the block straight up from the circuit board, as shown in Figure 4-3. Attach wires
to the desired connections, then plug the terminal block back on the board, being careful to match the pins.
Figure 4-3 Removable Terminal Block
NOTE: For power limited circuits, make sure that all input power sources (Alarm and Trouble relay
connections, NAC inputs, and auxiliary inputs) are power limited.
NOTE: The AC Power input wiring is non-power limited. Route it on the left side of the enclosure, using one of
the knockouts on the left side of the enclosure. Route all power limited inputs and outputs on the right side and
top of the enclosure.
Install field wiring in conduit when required, following the most current National Electrical Code (NFPA-70)
and local codes for the type of system being installed. Make all necessary connections at any additional wiring or
junction boxes.
CAUTION: Provide proper strain relief for all wiring not in conduit.
NOTE: Shielded wire is not required on any output circuits. If shielded wire is used, connect the shields to the
ground terminal block as shown in Figure 4-2.
4.4.4 Installing Strobe Connections
The Strobe Appliance Circuit consists of a NAC (8 to 33VDC) input and supervised NAC (regulated 27VDC)
output. The strobe output provides a synchronized output for compatible Cooper Wheelock, synchronized
strobes. When a synchronized signal from a previous module is used, turn OFF SW9-position 1. This action also
SP40S Multi-Function Facility Communication System Manual, Revision D
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