DMP Electronics XR2500F - Manual (Page 29)

XR2500F Installation Guide Digital Monitoring Products
21
InstallatIon
Smoke and Glassbreak Detector Output
14.1 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 five seconds using the Sensor Reset User Menu option to allow
latched devices to reset. Terminal 12 is the ground reference for terminal 11.
14.2 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.
Powered Zones for 2-Wire Smoke Detectors
15.1 Terminals 25–26 and 27–28
Panel terminals 25 through 28 provide two resettable Class B, Style A, 2-wire powered zones. For
programming purposes the zone numbers are 9 and 10.
Note: The maximum wire length for either zone 9 or zone 10 is 3000 feet using 18 AWG or 1000 feet using
22 AWG. The maximum voltage is 14 VDC and the maximum normal standby current is 1.25mA DC. The
maximum line impedance is 100 Ohms. The maximum short circuit current is 56mA.
When using 725 Zone Expansion Modules, use included, listed 6.8k Ohm EOL resistors. The compatibility
identifier for the zones using 725 Zone Expansion Modules is B. When using 715 Zone Expansion modules,
use listed 3.3k Ohm EOL resistors, Model 309. For all other zone expansion modules, use listed 1.0k Ohm
Model 310 EOL resistors. The compatibility identifier for the zones is A.
Note: Do not mix detectors from different manufacturers on the same zone.
Caution: Performing a Sensor Reset momentarily drops power to the devices on Zones 9 and 10. The panel
views these zones (9 and 10) as “Open” while the power is absent.