Tianjin 712 Communication & Broadcasting Co., Ltd.| Manufacturer
Tianjin 712 Communication & Broadcasting Co., Ltd.

China Manufacturer with main products: AIS, TETRA, AIS Class B, Hand Protable

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TETRA Base Station


The SBS are the racks housed in the coverage locations. These elements are inter-united according to the chosen topology to give coverage to a specified surface. Within the SBSs and as fundamental site elements, are the TETRA carriers or BSRs (Base Station Repeaters).
The TETRA carriers communicate with the node and again with the SNI elements, located this time in the SBSs. The presence of the SYNC cards is necessary to cover the installation of an SBS since they provide the frame synchronism necessary for inter-site calls.
As described in the SCN, communication between different modules which make up an SBS is made in the same way, by means of Ethernet LAN networks. For this, each one of the SBSs also has an MNI rack in which the Ethernet SWITCH is housed, which allows these communications.
Operating mode:
?V+D (TETRA Mode)                   ?DMO Mode
Operation:                                   Characteristics:
?Single Calling                             ?1050 Group Callings Selection
?Group Calling                             ?Edit 100 status messages in advance
?Telephone Calling                       ?Easy usages, Chinese Interface
? Status Messages                       ?Long Lives, Low Price
?Short Data Operation Service     ?Built - in GPS
                                                   ?Built - in GSM

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