Installation

10.4 Mounting Keypads and Zone Expansion Modules

LCD keypads have removable covers that allow mounting the keypad to a wall or other flat surface using the screw holes on each corner of the base. Before mounting the base, connect the keypad wire harness leads to the keypad cable from the panel and to any device wiring run to that location. Then attach the harness to the pin connector on the PC board, mount the base, and install the keypad cover making sure all of the keys extend through their respective holes.

For mounting keypads on solid walls, or for applications where conduit is required, use the Model 695 1-1/2” deep or the Model 696 1/2” deep backboxes.

The DMP 711, 714, 715, 716, and 717 modules are each contained in molded plastic housings with removable covers. The base provides you with mounting holes for installing the unit to a wall, switch plate, or other surface.

10.5 Connecting LX-Bus and Keypad Bus Devices

Several factors determine the DMP LX-Bus™ and keypad bus performance characteristics: the wire length and gauge used, the number of devices connected, and the voltage at each device. When planning an LX-Bus™ and keypad bus installation, keep in mind the following information:

1.DMP recommends using 18 or 22-gauge unshielded wire for all keypad and LX-Bus circuits. Do not use twisted pair or shielded wire for LX-Bus and keypad bus data circuits.

2.On keypad bus circuits, to maintain auxiliary power integrity when using 22-gauge wire do not exceed 500 feet. When using 18-gauge wire do not exceed 1,000 feet. To increase the wire length or to add devices, install an additional power supply that is listed for Fire Protective Signaling, power limited, and regulated

(12 VDC nominal) with battery backup.

Note: Each panel allows a specific number of supervised keypads. Add additional keypads in the unsupervised mode. Refer to the panel installation guide for the specific number of supervised keypads allowed.

3.Maximum distance for any one bus circuit (length of wire) is 2,500 feet regardless of the wire gauge. This distance can be in the form of one long wire run or multiple branches with all wiring totaling no more than 2,500 feet. As wire distance from the panel increases, DC voltage on the wire decreases. Maximum number of LX-Bus devices on the first 2,500 foot circuit is 40 devices.

4.Maximum voltage drop between the 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. When voltage is too low, the devices cannot operate properly.

For additional information refer to the LX-Bus/Keypad Bus Wiring Application Note (LT-2031).

Expansion Interface Cards (Models 481, 462N, 462P, 463G, and 472)

The LX-Bus provided on these cards requires only a 4-wire cable between the card and any devices connected to the bus. You can connect devices (zone or output expansion modules) together on the same cable or provide separate runs back to the card. Each LX-Bus provides up to 100 zones or outputs.

Note: Do not use twisted pair or shielded wire when connecting an LX-Bus or keypad bus.

XR2500F Installation Guide

Digital Monitoring Products

15

Page 22 Page 24
Page 23
Image 23
DMP Electronics XR2500F manual Mounting Keypads and Zone Expansion Modules, Connecting LX-Bus and Keypad Bus Devices
Page 22 Page 24

XR2500F specifications

The DMP Electronics XR2500F is an advanced and versatile electronic device designed to cater to a wide range of applications including industrial automation, robotics, and smart home technologies. Known for its robust performance and reliable functionalities, the XR2500F stands out as a leading option in the market.

One of the main features of the XR2500F is its powerful processing unit, which ensures efficient handling of complex tasks and data processing. With a clock speed of up to 2.5 GHz, the device is capable of multitasking, enabling users to run multiple applications simultaneously without compromising performance. This makes the XR2500F an ideal choice for applications that require real-time data processing and analysis.

The XR2500F is equipped with an extensive array of connectivity options, including Wi-Fi, Bluetooth, and Ethernet capabilities. This allows for seamless integration with various devices and networks. The wireless options facilitate easy communication with cloud services and other IoT devices, making it suitable for smart home automation systems, where synchronization and control are critical.

In terms of memory, the XR2500F offers significant storage capacity, with options that can accommodate up to 64GB of RAM and 512GB of flash storage. This ample memory ensures that users can store large amounts of data and run memory-intensive applications without experiencing slowdowns. Additionally, the device supports expandable memory options, allowing for future upgrades to meet growing demands.

The XR2500F also incorporates advanced security technologies to protect sensitive data. Features like end-to-end encryption and secure boot processes safeguard against unauthorized access and data breaches. This is particularly important in industrial settings where data integrity is critical for operational safety.

Another remarkable characteristic of the XR2500F is its energy efficiency. Designed with the latest power management technologies, the device minimizes energy consumption while maximizing performance. This not only reduces operational costs but also aligns with green technology initiatives.

Overall, the DMP Electronics XR2500F is a high-performance electronic device that combines powerful processing, extensive connectivity, robust memory, enhanced security, and energy efficiency. Its versatility and reliability make it a preferred choice for professionals seeking innovative solutions in automation and control systems.
Top Page Image Contents