NEXEDGE® systems support the following NXDN® digital modes:
- Digital Conventional
- Digital Conventional IP Networks
- Digital Trunked
- Digital Trunked Wide Area IP Networks
In addition, NEXEDGE® equipment can support legacy analog modes.
Note: in combination with the KVT-11 Image Encoder and the KAS-11 Image Viewer, a NEXEDGE® wireless system can acquire still pictures from remote video cameras.
Digital Conventional Mode
NEXEDGE® base units include a 16-RAN(Radio Access Number) capacity conventional repeater controller for 16 user group site sharing. The 65,519 (each) Group ID and Unit ID capacity adds group and individual selective calling capability beyond conventional analog. Also Mixed mode operation allows analog & NXDN® conventional units to share the same RF channel.
Digital Conventional IP Networks
NEXEDGE® Conventional IP links up to 16 or 48 digital conventional repeaters* into one system for wide area coverage or coverage fill-in extensions. As users roam throughout the network the subscriber units use the beacon signals and to choose the best repeater for communications.
* Version 2.0 or later and certain routing type required [16 (unicast);; 48 (multicast)] for maximum number of repeaters per network.
Digital Trunked Mode
NEXEDGE® trunked mode provides increased capacity, enhanced call capabilities, improved security and faster communications with less required user operation than conventional systems. The system automatically assigns channels for faster, efficient use of spectrum, allowing users to concentrate on the job at hand. The 3,000 (each) Unit ID and Group ID per-site capacity provides ample unit and fleet organization capabilities. Group and Individual calls enjoy complete privacy as other users in the system cannot monitor the calls. The Priority Monitor feature will monitor for up to 4 high priority talk groups and switch users to those calls in progress so important calls are not missed. During peak usage hours, system Call Queuing stacks call requests and processes calls when a channel becomes available. System operators can assign important individuals higher queue priority and even pre-empt lower priority users for more important dispatch and emergency calls.
Digital Trunked Wide Area IP Networks
The network option leverages the power of IP to link up to 48 digital trunked sites together for wide area roaming and calling capabilities. Scalable networks can be created over existing IT assets, private microwave, spread-spectrum links or carrier services using standard 10/100 Base-T Ethernet switches and routers. IPSec VPN tunneling provides encrypted, secure communications links within any IP network. Subscriber units use advanced control channel hunting algorithms, RF signal strength and digital signal quality (low bit-error-rate) to automatically determine the best sites to register on while moving throughout a network. The 60,000 Group ID and Unit ID network capacity is sufficient for large organizations and multi-user system sharing.
Wireless Image System
This innovative system consists of a monitor station and a base station, linked via NEXEDGE® digital transceivers. Still images are transmitted from the remote site to the base station computer, which serves as the control center. This allows the simultaneous monitoring of several sites where it would be difficult or uneconomical to install wired communications infrastructure – waterways, dams, national parks, temporary construction sites, and so on.