are more demanding than their home office or industry counterparts because, in such applications, there is need not only for reliable and continuous communications but also for ruggedized and sturdy equipment which will be able to mobilized anywhere in the field. These devices must be able to function under harsh environmental conditions such as extremely hot or cold, mud, dust etc in tactical field operations.
Alfaphonet Ltd can meet these demands by the offering military products
mobile optical tactical network
equipment which consists of:
- Passive components: Military cables (bulk or patch cord optical fibers), connectors and cable drums
- Active components: Media converters, switches, optical testers
The HMA optical military cables
are designed for connection of the nodes of tactical network by the help of cables with optical fibers. The used „Expanded beam technology“ preservers all the advantages of signals transmission through the optical lines in field harsh environmental conditions. Benefiting from expanded beam technology, with a long and proven industry track record, the precision optical alignment system creates immunity from water, mud, dust, oil and other contaminants. The HMA Hermaphroditic coupling eliminates the need for adaptors and male and female mating halves making the military communications more reliable. Hermaphroditic housings allow for rapid deployment, creating low loss Single mode, Multimode and Hybrid daisy chained links in a variety of platforms ranging from simplex fiber to a copper Hybrid. The HMA is ideally suited for environmental extremities where low maintenance and quick reparability is necessary, the connectors are uniquely field installable and rapidly field repairable. There are two different types of HMA connection modules:
1. LD type military tactical cable with HMA plugs at both sides
2. Hybrid connection module HMA to standard fiber optic connectors (SC, ST, LC, …)
Alfaphonet offers high quality and manageable cable drums. Users may choose the proper design and style for the specific application. The drums are ideal for applications in army communications. All cable drums
are offered with a third flange which allows full access to each patch cord end. The wide range of cable drums
has been developed to facilitate storage and handling with cable coils. The cable drums are designed to store up to 500 m of military cable and the low weight of the cable coils allows easy reconfiguration of the tactical network
in field conditions.
Military data network devices
The interconnection networks, based on fiber optic components, are designed to connect the nodes of tactical networks with the help of optical fiber military cables. The Expanded Beam technology used preserves all advantages of signal transmissions through optical lines in harsh environmental field conditions. For example, the tactical fiber optic cables with Expanded Beam connectors allow arranging of the connection between headquarters and subaltern points in field conditions in a very short time. The flexible 2 – 6 fiber 6 mm outer diameter optical cables have a high crush and strain relief resistance and a rugged field repairable connector design.
The LMSW-08 and LMSW-10 are low cost ruggedized field switches, which have been developed according to the above mentioned requirements. These switches combine all advantages: excellent optical tactical network
performance and rugged construction designed for operation in harsh environmental conditions. The LMSW-08 series includes fiber optic, UTP LAN and a VoIP gateway with FXS ports.
For extension of existing tactical network LMC media converters may be employed. LMC series are media converters, housed in robust metal box. They offer extended beam connectors for the optic military cable and copper pair ports for the connection of 100 base –TX or 10/100 Base- TX Ethernet cable in harsh environmental conditions. LMC design extends Ethernet’s use to military, aerospace, petrochemical and hard industrial applications. They meet the requirements for mobility, easy installation and mechanical strength, which are important for tactical deployment in the combat field. LMC series converters enable the extension of 10/100 Mbps cabling distance, allowing the connection up to 2 Km. By using only one single mode optical cable, the cabling distance of 10/100 base-TX network can be extended up to 120 Km. LED indicators show the power status of the converter, the LAN port and the fibers’ activity.
There are two available LMC converter types:
1. LMC-01 which contains one media converter and it is housed in metal box
2. LMC-02 which contains two media converters and it is housed in plain box
One of the military products
, the OFT-920 ruggedized optical test set is designed for testing of optical tactical networks terminated with connectors operating in harsh environment. It combines both light source and optical power meter in one common box. The test set is designed to meet the army communications
demands. The ruggedized aluminum case makes the unit ideal for field operation. The memory capacity allows storage and uploading of up to 2000 measurements including memory position or
fiber number, wavelength, absolute value or relative value and insertion loss. The Smart Protocol PC evaluation software supports memory download and test report generating. The rechargeable battery ensures long term working with minimal operation costs.