Check And Terminate All Zone (Zn), Mapnet Loops (Map A , Map B) And Signal (Sig) Wiring; Removing The Option Bay Door - Simplex 4100 Installation Manual

4100/4120 INSTALLATION MANUAL

6. Check and terminate all zone (ZN), MAPNET Loops (MAP A , MAP B) and signal (SIG) wiring.

NOTES:
A. Use the CARD SUMMARY BY LOCATION Report (Figure 6) to determine the location of the
motherboard on which each specific circuit terminates.
• A stock-on "ADDRESS" label on each motherboard identifies that board's number.
B. The above report is found within the computer printout portion of the Factory Documentation.
C. Use the terminal identifiers to find specific terminals.
• See Figure 18 (Custom Terminal Wiring Identifiers) for typical custom terminal wiring identifiers.
D. Check each circuit for voltages, shorts or opens as follows:
1. With the meter set on 300VAC, read the voltage across the circuit.
• Meter must read 0 volts.
2. With the meter set on 60VDC, read the voltage across the circuit again (this time in both directions).
• Meter must read 0 volts.
3. With the meter set on OHMS x 10 and its (+) and (–) leads connected to the circuit's (+) and (–)
wires respectively, check resistance.
• Readings must compare favourably with those shown in Table 2.
• If reading indicates an open in a circuit that includes a smoke detector, make sure the detector
head(s) are properly mounted and seated.
–
E. Connect the wires to their terminals.
Document No: 4100-M002

Removing the Option Bay Door

Circuits always read "open" (infinity) if detector power is absent and separately-powered
devices (four-wire smoke detectors) are involved.
Figure 4
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