DMP Electronics 736P Radionics, Installation And Programming Manual

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26 736P Installation and Programming Guide | Digital Monitoring Products, Inc.
ADDITIONAL INFORMATION
Wiring Specifications
DMP recommends using 18 or 22 AWG for all LX‑Bus and Keypad Bus connections. The
maximum wire distance between any module and the DMP Keypad Bus or LX‑Bus circuit
is 10 feet. To increase the wiring distance, install an auxiliary power supply, such as a DMP
Model 505‑12. Maximum voltage drop between a panel or auxiliary power supply and
any device is 2.0 VDC. If the voltage at any device is less than the required level, add an
auxiliary power supply at the end of the circuit.
To maintain auxiliary power integrity when using 22‑gauge wire on Keypad Bus circuits,
do not exceed 500 feet. When using 18‑gauge wire, do not exceed 1,000 feet. Maximum
distance for any bus circuit is 2,500 feet regardless of wire gauge. Each 2,500 foot bus
circuit supports a maximum of 40 LX‑Bus devices.
For additional information refer to the LX‑Bus/Keypad Bus Wiring Application Note
(LT‑2031) and the 710 Bus Splitter/Repeater Module Installation Guide (LT‑0310).
Tamper Switch Connection
To install a tamper switch, mount the tamper inside the enclosure and run a 2 pin tamper
wire connector from the switch to the TAMPER header on the panel.