Servicom were invited to exhibit Global Reach Over IP (GR:IP) to attendees at the Inmarsat Dealer Conference in Barcelona the 9th and 10th of November 2011. GRIP, that is available as a software and hardware solution facilitates radio communications over IP to create networks, simply, robustly and cost effectively. More...
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A W Comms Multi-Trip Repeater System
Product Code - T7PMEXBY8H
- A W Comms Multi-Trip Repeater System
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Further Reading:
Product Description
A W COMMS MULTI-TRIP
Trip Repeater System
Download PDF: A W Comms Multi Trip Repeater
Key Features
- Supports simplex and duplex radios
- 5 tone signalling
- Email on alarm
- Simple PC operator
- Unicast voice messages
In Brief
Multi-trip is a software application that resides an on small dedicated PC and links a number of simplex or duplex radios together over IP. The connection can be intranet or even over the internet provided this is secured appropriately. Each Multi-Trip provides a single audio channel over a wide area; this then allows radios in locations across the world to communicate as if they were all in local radio coverage. It even has PC client software, allowing PC users to join in radio conversations without needing a radio. Supervisors can monitor the radio system from their PC at work or even at home should they wish to.
Facilities
The Multi-trip package includes all hardware and software needed to create a radio network, each of the radios requires an AWCSL Trip connected to it and is connected to the end users IP network. Multi-trip hardware is a small nearly silent computer that only requires mains power and a network connection. This makes Multi-trip equally at home in a equipment room or an office environment. All configuration changes can be made from a small IBM compatible PC application that accompanies Multi-trip. A single operator monitor application is also included if further PCs are to use the system additional concurrent user licenses can be purchased.
As the system provides a wide area retransmission of audio then standard radio signalling such as 5 tone should pass through the system transparently and the users should not perceive any difference to that of a single site system. For the optional control of sites by radio users, a signalling option board can be purchased for the Trips, this offers an extensive selection of industry standard 5 tone formats. Signalling from the radio users can then be used to enable and disable specific base station and a number of other system level functions.
If a radio user speaks for too long then the over will be timed out and the fixed radio will be disabled from triggering the system for a configurable period. So as the users know this has occurred, the receiving radios will hear pips every few seconds before the time out occurs. When the caller releases PTT, a warning tone will be sent to indicate that he has caused a timeout and that he cannot access the system until the configurable lockout timer expires.
Interference and jammed radios can be a real problem in wide area systems and to alleviate this, the Multi-trip has a number of features. If interference opens the squelch of a radio it will be rebroadcast across the system, if the interference remains for a long period then the Multi-trip will time out the radio and remove it from the system automatically. If the interference goes away for a sufficient period then the system will reconnect the errant radio. The timers for this are configurable so this process should usually be sufficient. It is also possible from the PC application to disable and enable radios as needed. This also allows for radios to be added and removed from the wide area system as required by operational needs.
Email is used as the primary alerting method of the Multi-trip. If an event occurs then a log entry is created and the PC application will see an appropriate warning, but as this may not be active or attended then an email is created and sent to one or more recipients with a report of the event. If multiple events occur rapidly then they are included into a single email.
The PC software has a number of features that allow the user to view the system and control access assuming they have supervisor privileges. In normal operation the application will be resident in the Windows tool tray and will only come to life when an incoming voice call is received from the radio system. The audio will be sent to the Windows speakers and assuming a microphone is fitted the PC user will be able to join the conversation. If the application main form is opened then it will show all the fixed radios in the system and which one is receiving and those that are transmitting. An event log will also show recent activity and any errors. If 5 tone signalling is installed then this will also be shown.
Specification
- Dimensions - 224mm(w), 232mm(d) & 57mm(h)
- Power Supply - 12v dc (power supply provided with unit)
- Case - Rugged aluminium case in Black with plastic front cover
- Connectors - 4 x USB 2.0, 10/100 LAN, RS232, Parallel, VGA
- Mounting - Horizontal, Vertical or Desk mounted options
- Number of connections - Initial licence for 5 audio connections, additional 5 licence upgrades available







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