Cooper Notification SP40S Series, Installation, Testing, Operation And Maintenance Manual

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Installation
SP40S Multi-Function Communications System 46
4. Check the integrity of all field wiring. Confirm that the specified cable is installed,
and that there is continuity between required points (no open circuits), with no
unwanted shorts to other conductors, chassis, or earth ground.
a) Verify that the field wiring complies with the instructions of this manual and
the detailed wiring diagram prepared for this installation.
b) Ensure that no unwanted voltages are present on circuit conductors and
ground.
c) Test all ungrounded connectors for electrical isolation from ground.
d) Measure and record the resistance of each NAC circuit. Conduct this test
reversing polarity.
5. Perform Ground Fault Installation procedure as described in Section 4.7.
6. Calculate and install properly sized backup batteries as described in Section 4.8.3.
The SP40S panel is UL approved for 24VDC for a maximum of 33 Ah. Batteries
greater than 12 Amp-Hour (Ah) are required to be installed in a UL listed battery
box. The enclosure can accommodate up to 12 Ah.
WARNING: TWO DIFFERENT SOURCES OF POWER SHOULD BE CONNECTED
TO THIS UNIT. DISCONNECT BOTH SOURCES OF POWER BEFORE
SERVICING. FAILURE TO DISCONNECT BOTH POWER SOURCES BEFORE
SERVICING COULD RESULT IN SERIOUS INJURY, OR DEATH TO YOU
AND/OR OTHERS.
WARNING: ALWAYS APPLY AC VOLTAGE BEFORE APPLYING BATTERY
BACKUP VOLTAGE. FAILURE TO DO SO MAY CAUSE DAMAGE TO THE SP40S
PANEL.
7. Perform System Checkout procedures as described in Section 4.6.
4.5 Wiring the System
4.5.1 Wiring Guidelines
Although the SP40S panel incorporates signal verification and noise filtering circuitry on its
inputs, induced voltages or noise on the input wiring can cause improper operation.
Therefore, use shielded twisted pair wire for all dry contact input wiring.

Connect the shield of each cable only at one end.

Connect each shield of each cable that connects to the panel to the grounding points
provided near the knockout locations on the chassis (see
Figure 11
).
The National Electrical Code defines two types of circuits for protective signaling systems:
power limited circuits and non-power limited circuits. All outputs (STB OUT, AUDIO
OUT, and ± 24VDC auxiliary power source) are power-limited circuits.