Communications for RRVs

DECT 11 (Peltor)DECT_Com_II.pdf

As of the 31st March 2012, it has become a Network Rail Standard that all OTP/RRVs must use a full duplex communication system between the machine controller and the machine operator.  The standard for this is NR/BS/LI/225 This system gives full duplex communication between the machine controller and the machine operator; this system can be expanded so that more than two people can communicate in full duplex mode at the same time and is what is required in such work as tandem lifting (See PDF).  It can also be used on such plant as PemLems and also a Kirow crane(1) and (2).

DECT (Sonetics)WirelessCom Sonetics .pdf

This system gives full duplex between any number of users from two to 128, in practical terms it is not usually used in groups of larger than 4.  The big advantage of this system over other system is that the radio transmitters are built into the head shells of the headset meaning there are no cables attached to the headset, thus allowing any engineers who have to climb close to or work with any moving parts there are no possibilities of cable snags.  This system is currently being used on the new high output ballast cleaning machine based at Crewe (PDF)

Bluetooth 2Talk2talk full duplex .pdf

This system allows full duplex communication between any two people (machine operator/machine controller).  This system can only be used between two people and cannot be expanded to any more than two people (see PDF).