Your question about Siemens S30810-Q2022-X MTS

The memory time switch (MTS) is the basic element of the switching network (SN).

It is incorporated in the single-stage switching network of the Hicom 340.2/370.1 system, and in the GSN (group switching network) and the CSN (central switching network) of the Hicom 390.1/391.1 system.

The data processor (DP) controls the SN using its multibus interface.

In this type of digital SN, a through-connection between two outside lines involves the continuous transmission of the bit streams through the paths selected by the controller. Each speech path (half-path) requires its own route through the SN. The time channel used for through-connection forms a 64 kbit/s connection path.

The switching network in the Hicom 370.1 system consists of two MTS boards.

In the Hicom 390.1 system, the group switching network consists of two MTS boards, and the central switching network of four. Both switching networks are duplicated.

In the Hicom 391.1 system, four IOC/CSN shelves are used for the central switching network expansion. Each shelf consists of four MTS boards, which are duplicated as for the Hicom 390.1 system.

An MTS board has the following functional units:

• Sequence controller
• Line receiver/driver
• Time switch
• Multiplexer