SilentKnight 5700 - Manual (Page 58)

Model 5700 Installation and Operation Manual 151295
4-29
4.13.2 City Box Connection Using the 5220 Module
This section describes how to connect the control panel to a municipal fire alarm box or “city box” as required by
NFPA 72 Auxiliary Protected Fire Alarm systems for fire alarm service. The city (master) box is an enclosure
that contains a manually operated transmitter used to send an alarm to the municipal communication center
which houses the central operating part of the fire alarm system.
City Box Standby Current: 0 (Notification supervision current
accounted for in control panel draw.)
Alarm Current: 1 Amp for 1 second
Max Voltage: 27.4 VDC
The maximum coil and wire resistance (combined) must not exceed 30 ohms.
To install the 5220 for city box connection:
1. Use one of the knockouts on the right side of the control panel to connect the 5220 using a short piece of
conduit (must not exceed 20 feet in length).
2. Wire the 5220 to the control panel as shown in Figure 4-34. This drawing also shows how to connect the city
box coil to terminals 3 and 4 on the 5220. Do not install an EOL resistor in the terminals of the NAC circuit
used for this application.
3. Connect earth ground wire to the 5220 chassis with mounting screw.
4. Program the NAC circuit used as a continuous and non-silencing. Refer to Section 7.5 for point program-
ming, Section 7.4 for group settings, and Section 7.3 for zone settings and mapping.
It is not possible to reset the remote indication until you clear the condition and reset the control panel.
Figure 4-34 City Box Connection
Non-Supervised
Non-Power Limited
Note:
NAC Circuit 2 Used
as an Example.
Either NAC Circuit
Can Be Used.