RSP-Z2 Quick Start Guide
RSP-Z2 Quick Start Guide Page 6 of 12 Interoperability Now
2RSP-Z2 Basic Overview
2.1 Basic Information
This section provides some essential background information that will assist in understanding
the capabilities of the RSP-Z2.
JPS Interoperability Solutions has several decades of experience with voice communications
interoperability, fielding their first devices in 1989. Over this time the company has encountered
and resolved a wide array of problems that can hamper or complicate communications when
disparate devices are patched together into interoperability nets.
The RSP-Z2 incorporates all this experience, in the form of a suite of sophisticated DSP
algorithms that operate at its interfaces with any connected communications devices, as well as
many custom radio interface cables, covering well over 300 different radio makes and models.
JPS interoperability devices are also known for simplicity and ease-of-use. The RSP-Z2’s
browser-based Graphical User Interface is carefully designed to make these sophisticated
capabilities available when necessary. When the simple setup and configuration works well, an
installer and operator need only be concerned with these elements. However, if the
communications system includes any problematic elements, a JPS interoperability device (such
as this RSP-Z2) has thefeatures necessary to resolve the problems and optimize communications.
2.2 Important definitions:
COR: A signal that indicates when a radio (or other type of communications
device, such as an RSP-Z2) is receiving a valid audio signal.
PTT: A signal that tells a radio (or other communications device) to transmit the
audio signal being sent to it.
Full Duplex Communication System: Users can simultaneously talk to and
listen (for example, a standard telephone call).
Simplex or Half Duplex Communication System: Only one system user can
be heard at a time.
Interoperability Net: Communications link consisting of disparate devices (such
as radios of different frequencies, telephones, VoIP phones, etc.) connected
together, similar to a conference call.
These definitions are essential in understanding the basic operation of an interoperability device,
such as a JPS ACU Gateway or this RSP-Z2. That is: If multiple communications devices are
engaged in an interoperability net, whenever one device detects active COR (valid audio input),
that audio, along with a PTT signal, is sent to all other devices in the net to be transmitted. Also,
if any device in an interoperability net is half duplex (such as are almost all radio systems), then
all communications must be half-duplex. For this reason, the RSP-Z2 is a half-duplex device.
Among the unit’s sophisticated features are various methods for determining active COR (such
as VOX or VMR, which are optimal or necessary for some types of devices), and adjustable
audio delays to meet the timing requirements of the connected communications systems.
