AWITEL
AWITEL (= Albis Wired Telephone) is a digital field telephone technology that was developed by Siemens for the Swiss Army and is also used by other organizations.
The product has since been discontinued by Siemens Switzerland. However, due to a large-scale procurement by the army, it will be produced again. The THW will also participate in this order in order to complete its holdings according to the StAN .
AWITEL (system)
Compared to the old OB technology , setting up an AWITEL network requires little effort. It still uses the field cable and the field cable construction . With OB technology, a separate line had to be laid for each individual end device. Since the AWITEL system is a digital bus system , one line is enough to supply 30 end devices. The system itself handles the switching of individual calls. Up to 100 IDs can be assigned.
7 duplex calls can be made over one line . The field cable route for an AWITEL network can be max. Be 12 km long.
However, individual AWITEL networks can be connected through the AWINAP. The AWINAP enables the AWITEL network to use public telephone networks, radio systems and OB networks or to connect other AWITEL networks via the above-mentioned channels.
Two directly adjacent AWITEL networks can be connected using two AWITELs and a connecting cable even without AWINAP. However, connecting two networks using two AWINAPs has the advantage that the two networks can be connected over a greater distance (10 km), while the AWITEL connecting cable can be a maximum of 10 m long.
AWITEL (end device)
The AWITEL is the actual field telephone in the entire system. It signals incoming calls with the display of the calling ID and an acoustic signal. Individual calls, group calls, broadcasts and collective calls can be made.
Depending on the urgency, calls can also be prioritized, i.e. an ongoing call can be interrupted or protected.
A coupling unit is used when connecting an AWITEL to an existing field cable line. The coupling unit enables the useful signal to be transmitted to the cable by electromagnetic transmission without having to damage the cable. This is another fundamental benefit of the system.
The AWITEL is powered by four Mignon batteries that last up to 24 hours if used intensively.
AWINAP
The AWINAP is expanding an AWITEL network. It serves as a " gateway " to a
- Radio network
- Telephone network
- analog field telephone network
- further AWITEL network
- by means of a radio bridge
- by means of a cable bridge
- Cellular network
For example, you can use an AWITEL to transmit via the AWINAP to which a radio is connected.
The AWINAP is powered by four mono batteries.
commitment
In the Swiss Army it is used as field telephone 96 (Ftf 96). In contrast to civil devices (mostly yellow), these devices, which are colored green, have a one-way communication blocker built in (threshold value) and a different software is used. Surplus stocks were given to the Swiss civil defense. In Switzerland it is also used by the police, fire brigade and federal railways.
In addition to the Swiss Army, it is used by the military in Saudi Arabia, the United Arab Emirates, Malaysia, Norway, Sweden and North African armies.
In addition to the Swiss civil defense, the Technische Hilfswerk (THW) in Germany tested the system in 1995 together with the MATEL system and has been using it since 1999. The specialist group for information and communication of the Frankfurt am Main fire brigade has two AWITEL systems. These are u. a. intended for locations in underground traffic systems and high-rise buildings. It is also used by the Oldenburg district fire department.
The system is now also in civilian use by the Austrian Federal Railways (ÖBB), which use the telephone system as a means of communication in tunnel construction, where the structural and geographical conditions mean that radio cannot be used. Swiss and Danish tunnel construction companies also use the system.
Since 2000, Awitel has also been used as a message system in the “Liechtenstein Transmission Group” (UemGrFL), a specialist group of Liechtenstein civil protection, which is subordinate to the Office for Civil Protection. The group includes around 20 members who volunteer at sporting events in the mountains (LGT marathon) or the Gamperney mountain run in neighboring Grabs , where extensive radio coverage cannot be guaranteed due to the mountainous location, and an emergency network for the 600 alpine marathon runners Provide security posts.
Other missions were recorded, for example, when a member of the mountain rescue team had to be roped down several hundred meters into a pressure pipe shaft to rescue a camera and communication was only possible via Awitel for several hours. Another unit was used at the annual Openair St. Gallen in Switzerland, where almost the entire telematic infrastructure is based on Awitel and is maintained by the FWZSSG.
Individual evidence
- ↑ Federal Office for Civil Protection. Infrastructure. Department of Materials & Systems (Ed.): MERKBLATT NO. 22 including ANNEX 1 to the guidelines for the maintenance and disposal of civil defense material FELDTELEFON FTF 96 AWITEL , May 8, 2008
- ↑ a b c AWITEL , fernmeldezug.de, district fire brigade, district of Oldenburg
- ↑ Jürgen Kardel: Testing of new communication systems for the FGr FK in: Technisches Hilfswerk No. 3/95, September 30, 1995
- ^ Office for Civil Protection (Ed.): Deployment by Siemens AWITEL in the Principality of Liechtenstein , August 2, 2007