Ultimate Guide to Wiring a GT Multi-Tenant System

Table of Contents

1. Introduction
2. Overview of the GT Multi-Tenant System
3. Wiring the GT System Using the Home Run Method
   • Connectors on the Back of the Entry Panel
   • Wiring the Audio Trunk Line
   • Wiring the Video Trunk Line
4. Wiring the GT System Using the Loop Method
   • Connectors on the Back of the Tenant Stations
   • Wiring Diagram for the Loop Method
   • Adding Apartment Stations
5. Programming the GT System
   • Handshake Method
   • Dip Switch Method
6. Installing Locks
   • Installing an Electronic Strike
   • Installing a Maglock
7. Important Considerations
   • Limitations on Trunk Lines and Apartment Stations
   • Termination of GT4Z Units
8. Proper Distance and Wiring Considerations
9. Additional Resources
10. Conclusion

Wiring a GT Multi-Tenant System for 48 Apartments or Less

The GT Multi-Tenant System is a comprehensive audio and video distribution system designed to support up to 48 apartments. In this article, we will provide a detailed guide on how to wire the standard GT system using both the home run method and the loop method. We will also discuss programming options, installation of locks, and important considerations for your installation.

Overview of the GT Multi-Tenant System

The primary parts for the back-end equipment of the GT audio-video system are the GT VBC for video distribution and the GT BC for audio distribution. There are two primary ways to wire the standard GT system: the home run method and the loop method. The home run method involves running individual trunk lines to each apartment station, while the loop method allows for multiple stations to be connected in a loop. It is important to note that each trunk line is limited to a maximum of 25 apartments, and You must not exceed 48 apartments per pair of GT BC and VBC units.

Wiring the GT System Using the Home Run Method

When using the home run method, it is crucial to understand the connectors on the back of the entry panel and the tenant stations. The most important connectors include A1 and A2 for video trunk line termination, R1 and R2 for audio trunk termination, and the plus and minus DC volts for power. To begin wiring the system, you will need to add the GT BC and GT VBC units, along with a power supply (PS2420 UL). Each apartment station will be connected to the trunk lines using the appropriate connectors.

Wiring the GT System Using the Loop Method

The loop method allows for greater flexibility in wiring multiple apartment stations together. Connectors such as B1 and B2 for video trunk line and R1 and R2 for audio trunk line are crucial for this method. The wiring diagram for the loop method showcases the connection points for each terminal. By adding apartment stations and extending the trunk lines, you can support more apartments. However, it is important to adhere to the limitations of not exceeding 25 apartments on an individual trunk line and not exceeding 48 apartments per pair of GT BC and VBC units.

Programming the GT System

To program the GT system, there are two methods available: the handshake method and the dip switch method. The handshake method requires the presence of two technicians, one at the entry panel and one in each individual apartment, to perform a mechanical handshake with the system. On the other hand, the dip switch method allows for each apartment to be assigned a unique ID through adjusting the dip switches on the back of the units. The software IDs associated with each dip switch setting must be added using a software tool provided by the system.

Installing Locks

For security purposes, it is essential to install locks in the GT system. Two types of locks can be used: electronic strikes and maglocks. The installation process involves connecting the terminals on the back of the entry panel (ELM, ELC, and ELB) to the respective locks and power supply. The configuration varies depending on the type of lock being installed (electric strike or maglock).

Important Considerations

When wiring the GT system, it is crucial to consider the limitations on trunk lines and apartment stations. Each trunk line can only support up to 25 apartments, and the total number of apartment stations should not exceed 48 per pair of GT BC and VBC units. Additionally, proper termination of GT4Z units is required. The last GT4Z unit on a specific trunk line must be terminated by setting the dip switch to the "A" position.

Proper Distance and Wiring Considerations

When designing your system, it is important to consider the wiring distance between components. A provided wiring distance Chart should be consulted to ensure proper placement of components and stay within the specified distance ranges. Using phone wire for the installation will add an additional one-year warranty to your system.

Additional Resources

For more information and resources on wiring and installing the GT Multi-Tenant System, please visit the official A-Phone Website. They provide extensive documentation and support to assist you throughout the installation process.

Conclusion

Wiring a GT Multi-Tenant System requires careful planning and consideration of the available methods and limitations. By following the guidelines provided in this article, you can successfully wire a system that supports up to 48 apartments while ensuring proper functionality and security. Installation of locks and proper distance considerations are also vital for a seamless operation.