Two 866 nac modules, 1 description, 2 connection – DMP Electronics XR2500F User Manual
Page 15: 3 bell silence/bell trouble, Description, Connection, Bell silence/bell trouble, Introduction
XR2500F Installation Guide
Digital Monitoring Products
7
IntRoduCtIon
Two 866 NAC Modules
5.1 Description
Each 866 provides one style W indicating circuit for supervising listed polarized notification appliances,
such as bells, strobes, and horns. See Table 1: Notification Appliances for a list of approved notification
appliances.
5.2 Connection
Each 866 module is pre-installed on the removable backplate using the standard three-hole configuration.
The modules are factory pre-wired to each other and the XR2500F panel. Refer to the figure below and to
Figure 2: XR2500F System for wiring connections.
Connect a 12 or 24 VDC regulated, power limited power supply listed for Fire Protective Signaling Systems to
terminals 2 and 4 of each module to provide Notification appliance power. Connect notification appliances
to terminals 5 and 6 of each module. Each module provides a zone of notification and can be activated
separately.
1 AUX PWR
2 GND
3 Alarm In
4 Bell PWR In
5 Bell Out +
6 Bell Out -
7 Bell Trouble
8 Bell Trouble
866
Module #1
Normal/Silence Switch
1 AUX PWR
2 GND
3 Alarm In
4 Bell PWR In
5 Bell Out +
6 Bell Out -
7 Bell Trouble
8 Bell Trouble
866
Module #2
Normal/Silence Switch
To XR2500F Output #1 (J2 pin #2)
To XR2500F terminal 13 (Zone 1)
To XR2500F terminal 7
To 24 VDC Power Supply DC -
To XR2500F Output #2 (J2 pin #5)
To 24 VDC Power Supply DC +
To XR2500F terminal 15 (Zone 2)
To 24 VDC Power Supply
Listed, Polarized
Notification Appliances
See the Notification
Appliance section
Listed, Polarized
Notification Appliances
See the Notification
Appliance section
Pre-installed 1K EOL
Pre-installed 1K EOL
Figure 5: 866 Modules Wiring
5.3 Bell Silence/Bell Trouble
A bell silence switch on the 866 module is provided to prevent indicating devices from sounding during
system testing. When the Silence position is selected, a 15-second delay occurs before the 866 bell trouble
contacts (terminals 7 and 8) open. Select the Normal position after testing to return the 866 module to
normal operation.