Funk-Electronic Piciorgros GmbH
TGW-100/TGW-100R
V2.71 - Page 41 of 59
If multiple-address routing is not possible or desired, then the TGW-100 can be
configured to use a single ISSI or IP, to which all transmitted data is addressed. The
slave modems would be part of a group: all modems of this group receive the same data.
Each terminal equipment connected to the slave modems is then responsible for
determining whether a data block is intended for it or not.
It should be noted that when SDS is broadcast to a group, the SDS is sent from all base
stations on the same TETRA network. This obviously generates a higher network load
because when transmitting to an individual ISSI, the base station sends the SDS
intended only for the specific base station to which the target terminal equipment is
connected.