DMP 865 Installation Manual

865 CLASS A/B NOTIFICATION
MODULE
Installation Guide
BELL POWER
GROUNDED
AT PANEL
MODEL 865
Figure 1: 865 Module
DESCRIPTION
The 865 NAC module provides
Class A or B supervision for
ground faults, opens, and shorts
on notification appliance circuits
connected to fire alarm control
panels. The 865 is suitable for use
with 2 or 4-wire circuits.
The module also includes a Trouble
LED, Ground Fault LED, and a set of
Normally Closed Trouble contacts
to indicate off normal conditions.
Additionally, the module includes
a Bell Silence switch for use during
testing or service.
Connect a maximum 5 Amp,
12 or 24 VDC regulated, power
limited power supply listed for Fire
Protective Signals to the module to
support alarm power requirements
beyond the panel alarm output
capacity.
Compatibility
• XT30/XT50 Series Panels
• XR150/XR550 Series Panels
• XF6 Series Fire Control Panels
What is Included?
• One 865 NAC Module
• One Model 308 10k Ohm Resistor
with Leads
• Hardware Pack
1
NORMAL
BELL
SILENCE
TRBL
GND
FAULT
1
AUX
PWR
2
GND
3
ALARM
INPUT
4
BELL
PWR +
INPUT
5
BELL
PWR -
INPUT
6
BELL A+
OUTPUT
7
BELL A-
OUTPUT
8
BELL B+
OUTPUT
9
BELL B-
OUTPUT
10
BELL
TRBL
11
BELL
TRBL
2
MOUNT THE MODULE
The module can be mounted in a
DMP enclosure using the standard
3-hole mounting pattern. Refer
to Figure 2 as needed during
installation.
1. Hold the plastic standoffs
against the inside of the
enclosure side wall.
2. Insert the included Phillips
head screws from the
outside of the enclosure into
the standoffs. Tighten the
screws.
3. Carefully snap the module
onto the standoffs.
WIRE THE MODULE
Caution: Disconnect all power from the panel before wiring
the module. Failure to do so may result in equipment damage
or personal injury.
For power connections, use 22 AWG or larger wire. Refer to
Figure 3 and Figure 4 when wiring the module.
1. Connect module Terminal 1 to panel Terminal 7.
2. Connect module Terminal 2 to panel Terminal 10.
3. Connect module Terminal 3 to panel Terminal 5.
4. Wire power supply positive to module Terminal 4.
5. Wire power supply negative to module Terminal 5.
6. If powering the NACs from the control panel, connect a
jumper between module Terminals 3 and 4 and between
Terminals 2 and 5. For supervised circuits, ground fault is
detected at 0 (zero) Ohms.
7. For Class A connections, wire module Terminals 6-11 as
shown in Figure 4. Trouble contacts are connected to a
zone on the panel to indicate NAC trouble or ground faults.
The common relay is rated 30 VDC @ 1 Amp, resistive.
8. For Class B connections, wire module Terminals 6-11 as
shown in Figure 3. Install the included 10k Ohm EOL
resistor across Bell Output A + and Bell Output A –.
9. For Class A and Class B circuits, install a jumper on the Bell
Ground Header. The jumper also disables the alarm bell
output in the event of a ground fault on either side of the
notification circuit.
1
2
3
Figure 2: Standoff and Module
Installation