Network EDGE is designed specifically as a translator between high-quality, low-latency studio networks such as WheatNet-IP and low-bandwidth STL connectivity options such as IP wireless radios.
IP wireless radios in the unlicensed 5 or 24 GHz range are priced from a few hundred to several thousand dollars.
Typically located at the studio, the Network EDGE interfaces directly to an IP wireless radio or commercial leased line for point-to-point connectivity between locations. Network EDGE can be used with any of the major IP radio brands currently on the market. When used within the WheatNet-IP system, with a Network EDGE at one end and a BLADE at the other, this opens up a world of possibilities based on BLADE I/O functionality such as silence detection, clip player, logic for automation, et al.
The Network EDGE includes local I/O (two AES and two stereo analog) and 12 programmable logic ports.
EDGE provides the data buffering needed between the studio IP audio network and the STL in order to handle the latency swings typical of unlicensed IP radios. It handles the necessary delay as a buffer to any latency shifts that come across the link and acts as an interface between the WheatNet-IP audio network and the IP radio. (This is because the critical difference between unlicensed and licensed wireless IP systems is how the two handle latency. IP wireless radios operating on licensed frequencies have exclusive use of the band and therefore have a consistent, lower latency, typically around 100 microseconds. Comparatively, latency on an unlicensed system can jump from 2 milliseconds up to 12 or 20 milliseconds depending on interference or even changes in weather patterns.)
For more info in IP Radios, check out these two articles:
Below are three diagrams that illustrate the function of the EDGE, it's application in a STUDIO, and its application at the TRANSMITTER.
Specifications for all BLADEs...
Connector RJ45 (2), 12 channels
Voltage +5VDC to GND, +5VDC and GND provided
Current 100mA max source/sink
Cable CAT5E or CAT6
Audio transport Gigabit Ethernet 1000BASE-T, used for all BLADE-to-BLADE audio traffic
Utility interface 100BASE-TX for future use
Sample rate 44.1 or 48kHz, user selectable in software
Sync Internal or external, External sync input on any I/O digital BLADE
Reference level 0dBFS=+4dBu (+4dBu=1.23VRMS)
Latency 0.5mS, BLADE to switch to BLADE
19"/48.3cm wide, 1-3/4"/4.5cm high
15-1/4"/38.7cm deep with connectors
Shipping weight 14lbs/6.4kg
ip88a: 49VA, 30W
ip88d: 23VA, 12W
ip88ad: 35VA, 19W
ip88m: 35VA, 19W
ip88cb: 35VA, 19W
ip88e: 18VA, 10W
This paper examines QoS, transport, protocols and other issues relevant to extending AoIP networks for sharing resources and controlling studios across a wider area network.
Shows the new products we are working on for 2016
A full-color brochure describing the BLADE-3 line of WheatNet-IP network access points.
This brochure provides overviews of the entire WheatNet-IP Intelligent Network. It includes technical details as well as acts as a catalog for all Control Surfaces, BLADES and Accessories.
A document describing configuration of the Cisco 3750G, 3560G, 3650 and 3850 ethernet switches for use with the WheatNet-IP Intelligent Network.
This is a technical manual covering all of the WheatNet-IP BLADE-3s.
This document shows simplified diagrams of the proper wiring and connections for logic I/O on WheatNet-IP BLADEs.
This document is a brief description of the logic function names used in the Wheatstone WheatNet-IP system.
IP Audio Networks: Planning for Reliability A white paper by Andrew Calvanese, VP Engineering, Wheatstone Corporation
WheatNet-IP brings added convenience and simplicity to the configuration of a PC- based automation system such as RCS Zetta. Where once it was necessary to employ a specialized sound card, discrete analog or digital audio wiring, a logic interface, and control cabling, with WheatNet-IP’s PC Driver, we can accomplish all of this over a single Ethernet cable. The driver effectively acts as a WheatNet-IP BLADE, and lets the PC enjoy full access to all aspects of the WheatNet-IP intelligent network. The driver is available in versions that offer one, four, eight, twelve, and twenty-four stereo input and output channels. For situations where discrete outputs from Zetta players are desired, we recommend at least the four-channel version of the driver.
This is a GREAT article from Pro Audio Asia...
Reprint of October 2016 article from Radio Magazine on the Hubbard broadcasting in Phoenix.
Saga Modernizes with Wheatstone by Jeff Den Adel, Engineer, Saga
Building an AoIP Network with BLADES by Amanda Hopp
IP At Center of Rogers' Console Decision by Mike McCabe, Engineerin Manager Rogers Broadcasting
A look at sending audio over IP via packets, and network considerations such as latency and jitter. A Radio World Engineering Extra by Greg Massey and Jon McClintock. Reprinted by permission.