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XR150FC/XR550FC Series Installation Guide
Digital Monitoring Products
13
InstallatIon
Bell Output
7.1
Terminals 5 and 6
Terminal 5 supplies positive 12 Vdc to power alarm bells or horns. This output can be steady, pulsed, or temporal
depending upon the Bell Action specified in Bell Options. Terminal 6 is the ground reference for the bell circuit. This
supervised output detects 1k Ohms or less as normal. The indicating appliance can supply this resistance. If using a
horn or siren, a 1k Ohm 1/2 W EOL resistor (provided) should be added across the bell circuit to provide supervision.
See the Notification Appliance section in the Compliance Listing Guide (LT-1330) for a list of approved notification
appliances and the Wiring Diagrams for connections.
Keypad Bus
8.1 Description
XR150FC/XR550FC Series panel terminals 7, 8, 9, and 10 are for the keypad bus. You can connect up to fifteen
supervised keypads and multiple unsupervised keypads to the XR150FC/XR550FC Series. In addition to DMP LCD
keypads, you can also connect any combination of zone expansion modules to the data bus. Refer to the specific
device installation sheet for the maximum number of Keypad Bus devices.
Refer to the section titled LX-Bus for complete information about LX-Bus Expansion.
Note:
Do not use shielded wire for LX-Bus/Keypad Bus circuits.
8.2
Terminal 7 - RED
This terminal supplies positive 12 Vdc Regulated to power DMP LCD keypads and zone expansion modules. Terminal 7
also supplies power for any auxiliary device. The ground reference for terminal 7 is terminal 10.
The output current is shared with the smoke power output on terminal 11 and Zones 9 and 10. Current draw for all
connected devices must not exceed the panel maximum current rating. See Power Supply in the Compliance Listing
Guide (LT-1330) for maximum current in a fire listed application.
8.3
Terminal 8 - YELLOW
Terminal 8 receives data from keypads and zone expansion modules. It cannot be used for any other purpose.
8.4
Terminal 9 - GREEN
Terminal 9 transmits data to keypads and zone expansion modules. It cannot be used for any other purpose.
8.5
Terminal 10 - BLACK
Terminal 10 is the ground reference for DMP LCD keypads, zone expansion modules, and all auxiliary devices being
powered by terminal 7.
8.6
J8 (PROG) Programming Connection
A 4-pin header (J8) is provided to connect a keypad when using a DMP Model 330 Programming Cable. This provides a
quick and easy connection for panel programming.
You may also use the J8 Programming Header to connect Keypad Bus devices. This is an alternative to connecting
keypad bus devices to terminals 7, 8, 9, and 10.
8.7
OVC LED(s)
The Overcurrent LED (OVC) lights Red when the devices connected to the Keypad Bus and LX-Bus(es) draw more
current than the panel is rated for. The OVC LED is located to the left of the 893A Connector on the panels. The
XR150FC/XR550FC Series panels have an additional OVC LED to the right of the J24 Cell Module. The LED(s) turn a
steady Red when lit. When the OVC LED(s) light Red, the LX-Bus(es) and Keypad bus are shut down.
Smoke and Glassbreak Detector Output
9.1
Terminals 11 and 12
Terminal 11 supplies positive 12 Vdc Regulated to power 4-wire smoke detectors and other powered devices. This
output can be turned off by the user for 5 seconds using the Sensor Reset User Menu option to allow latched devices
to reset. Terminal 12 is the ground reference for terminal 11.
9.2
Current Rating
The Output current from terminal 11 is shared with terminals 7, 25, and 27.
The total current draw of all devices powered from the panel must be included with terminal 11
calculations and must not exceed the maximum output rating.