General
Device type	ISDN BRI VoIP Terminal Adapter
Number of BRI ports	2
BRI mode	NT
Maximum number of VoIP calls	4
Ethernet interface	1x 10/100 Mbit/s
Current supply	external, 100–240 VAC
Operating system	SmartWare
Phantom power
High-precision clock

The Patton SmartNode DTA is an ISDN BRI VoIP terminal adapter designed for integrating ISDN basic rate connections into IP-based telephony and data communication networks. The device enables conversion of ISDN BRI signals into VoIP protocols and serves as a bridge between analog or ISDN-based telephone systems and modern IP networks. It features two BRI ports (Basic Rate Interface) in NT mode, enabling it to function as a network terminal (NT) and establish connections to ISDN networks. The device supports up to four simultaneous voice and fax calls, making it suitable for small to medium enterprises as well as applications with high call volumes.

Applications
This terminal adapter is particularly suitable for environments where existing ISDN infrastructures need to be connected to IP telephony systems. Examples include companies planning a migration from analog or ISDN telephone systems to VoIP systems without immediately decommissioning existing ISDN connections. It is also appropriate for hybrid environments where IP telephony and ISDN connections are used in parallel. The support for four simultaneous calls makes it usable for locations with multiple telephone lines or for call center applications with low to medium load.

Functions and Equipment in Detail
The device includes two ISDN BRI ports operating in NT mode, thus assuming the role of the network terminal. The BRI ports support phantom power, meaning power is supplied over the ISDN line, eliminating the need for a separate power supply for connected end devices. The integrated high precision clock source ensures stable and accurate time synchronization, which is important for synchronization in VoIP networks. The maximum number of simultaneous voice and fax calls is four, enabling use for multiple users or call channels.

Technology Explained Simply
The adapter operates using the VoIP protocol, converting ISDN signals into IP packets that are transmitted over a local network. The Ethernet interface (1x 10/100 Mbit/s) connects to a local network, enabling VoIP data to be transmitted over the IP network. External power supply is provided via AC voltage from 100 to 240 VAC, allowing worldwide deployment.

Compatibility and Accessories
The device is designed for use with ISDN BRI connections and requires corresponding network infrastructure. It is compatible with SmartWare software, used for configuration and control of the device. Connection to VoIP systems is achieved via the Ethernet interface, enabling integration into existing IP networks.

Mounting and Installation
Installation involves connecting to ISDN BRI lines and a local IP network. Power supply is provided by an external power adapter connected to a 100–240 VAC outlet. The device does not require special mounting as it is designed for desktop use. Connection to ISDN networks is made via the BRI ports in NT mode.

Operational Advantages
Using the Patton SmartNode DTA enables a gradual migration from ISDN to IP-based telephony systems without immediately decommissioning existing ISDN connections. Support for four simultaneous calls and the integrated high precision clock ensure stable and reliable communication. The worldwide power supply (100–240 VAC) simplifies installation in various countries. Phantom power over the ISDN line reduces the number of required power sources for connected end devices.