InterTalk
Console Equipment

The InterTalk workstation PC is installed on each console position at the dispatcher’s seat, with a commercial-off-the-shelf (COTS) 22” or greater monitor. Use the InterTalk DCS via touchscreen UX, mouse & keyboard, or both concurrently depending on the end user’s preference.

The Audio Exchange (AUDx) provides the InterTalk system’s IP streaming audio at each console. AUDx connects InterTalk’s speakers, headsets, microphones, footswitches, telephone, auxiliary audio and local I/O.

The InterTalk-manufactured AUDx uses advanced Digital Signal Processing (DSP) methods to set audio levels and to provide audio filters, routing, and automatic gain control (AGC) for microphone inputs, specifically designed for busy dispatch environments. With this full feature set, AUDx ensures your critical communications audio is robust and clear and is not dependent upon the PC’s soundcard or other audio hardware.

The AUDx features 4 speaker ports, 2 headset box connections, a telephone headset connection, and a GPIO connection.

InterTalk’s Headset Box (HSB) connects to the Audio Exchange and delivers PJ327 jacks for standard 4-wire/6-wire headsets, volume control, and a footswitch jack.

Fabricated with metal, The Headset Box is for rugged use in busy dispatch environments.

The InterTalk dispatch speakers provide Select/Unselect audio at the dispatching position.

InterTalk’s speakers have a volume control, and LED lights indicating the speaker status (power) and VOX (incoming audio).

The Citadel IP Radio Gateway serves as the connection between non-IP radios and your network. InterTalk’s Citadel IP Radio Gateway can be used to construct nearly any type of voice or data radio network. It converts any audio from up to four (4) conventional radios or phones and sends it to your console system(s) and radio sites at your agency, and vice versa.

The Citadel can be customized to meet your exact communications requirements in the field, and also allows you to remotely control gates, doors, lighting, alarms, generators, or anything else connected to your network.

The Citadel can connect to and control base stations via GPIO (parallel port) connections, with additional ports available to control radio units using RS-232/422/485, USB or Ethernet. The Citadel can control up to four (4) base stations using a single IP connection with TCP/IP for control, and RTP/UDP/IP for voice streaming.

Where no IP backhaul facilities exist, the Citadel can be configured for analog trunk operation by using one of the analog ports as drop-and-insert style trunk connections.

The Citadel also enables an extended network of conventional repeaters to work together over a wide area. While analog trunks can be used, IP connections between the sites allow for advanced features such as peer-to-peer receiver voting, transmitter steering, and talker identification. With the addition of the InterTalk Dispatch Console System, a small and very functional radio network with advanced features can be built for less than the cost of a typical P25 system controller.

The Citadel’s DSP technology, accompanied by its built-in Linux operating system make it easily modifiable for any job you can think up for your site. Coupled with a best-in-class input and output offerings, an extreme temperature range tolerance (-40°C to +65°C / -40°F to 149°F), and a significantly lower power requirement (3W nominal), our Citadel Analog Radio Gateway is the smartest, most economical choice for your remote, battery/solar-powered radio site requirements.

The InterTalk DCS radio endpoints are known as Radio Line Interface (RLI) cards. InterTalk’s current generation of RLI cards support up to four radio interfaces, known as Quad Line Interface (QLI) cards. With 4 ports per card, the space savings for your agency is significant – a 3U rack space can accommodate up to 44 radio channels, providing excellent density for space savings.

Each interface can be 2 or 4-wire, with local PTT/COR control, and/or E&M signalling. Each of the four ports on the QLI is independent of the others, and all keying tones, paging tones, MDC-1200, GE Star, DTMF and other signalling is generated on a per-port basis utilizing advanced Digital Signal Processing (DSP) techniques. The codec used by the InterTalk System components, QLI inclusive, is G.711 μLaw compandered, providing an MOS quality of 4.0 or better.

InterTalk’s QLI Card has one RJ-45 Ethernet connector that supports 10/100baseT connection. The network protocols used are standard TCP/IP and UDP/IP that route through IPv4 equipment. The QLI can operate in parallel with existing equipment, allowing a seamless transition from legacy to new systems.

The QLI Cards use standard PCI-style card edge connectors that are rated for more than 200 insertions. Each QLI Card is equipped with its own switch-mode power supply regulators and transient protection devices to ensure excellent isolation from external environmental electrostatic discharge and power fluctuations.

The QLI utilizes a powerful DSP micro-controller to independently process both incoming and outbound audio across all four ports. The DSP processor generates outbound keying and alert tones, as well as paging sequences. The DSP decodes incoming signalling, and Automatic Gain Control (AGC) level adjustment is applied.

Each port possesses a 2-wire output comprising the summation of the input and output audio paths with or without signalling. The output is designed to interface with a 3rd party archival recorder. The nominal level is -10 dBm, and can be adjusted by a System Administrator.

InterTalk’s QLI Cards run an embedded distribution version of the Linux operating system (uClinux™). uClinux™ provides the ability to remotely view all card parameters, including the current status of the application, card health, and remote maintenance and diagnostics by the System Administrator or technician.

The Sentinel IP Radio Gateway represents the next generation of analog-to-IP conversion solutions. Optimized for operation at remote sites with IP connectivity, Sentinel can handle wireline and microwave bearer circuits, including the ability to mix different types of circuits. The Sentinel interfaces 2/4/6 wire radios to your IP network for audio communication. The Sentinel can connect to and control base stations using local PTT/COR connections, including Tone Remote Control (TRC). Other control mechanisms can be supported, with additional ports available to control radio units using RJ45, USB or Ethernet. The Sentinel can control up to two (2) base stations per controller using a single IP connection with TCP/IP for control, and RTP/UDP/IP for voice streaming.

The Sentinel IP Radio Gateway is easily integrated with your existing InterTalk dispatch Console system. With the capability of bridging and operating in parallel with other equipment, the Sentinel has the capability to eliminate downtime while installing. The smaller form factor of the Sentinel IP Radio Gateway ensures valuable space in your server rack is not needlessly occupied. Utilizing Sentinel, IP connections between sites allow for advanced features such as peer-to-peer receiver voting, transmitter steering, and unit identification. When integrated with an InterTalk™ Dispatch Console System, a small and very functional radio network can be built economically

The Sentinel IP Radio Gateway operates on an embedded open-source Linux operating system. This allows for flexibility to modify the Sentinel for just about any job you can imagine for your site. Utilizing Linux ensures continued support through software and security updates for years to come. Taking advantage of modern technology, the Sentinel is equipped with a quad-core, 64-bit ARM-based processor operating at 1.2GHz. Combining this with 1GB SDRAM and expandable eMMC flash memory up to 32GB ensures the Sentinel has the power available to meet your needs today and well into the future. In situations when more than two base stations require control, or higher redundancy is desired, simply deploy multiple Sentinel gateways into your system.