Industrial modem
7XV5820 SIEMENS Smart Grid

Industrial Modem and Modem-Router with Switch

Depending on the available infrastructure and transmission requirements various modems and routers are available for the remote communication with SIPROTEC protection devices, using DIGSI.
The existing infrastructure may consist of analog or digital (ISDN) transmission networks, which may be private (internal telephone system) or a leased line. This may determine the corresponding combinations of the modems or routers. A suitable combination usually consists of a desktop device with plug adapter in the office, and a rail mounted device in the substation (see application examples). The rail mounted devices may be operated with an optional wide-range power supply adapter with all alternating current networks as well as station batteries.
The desktop analog modem „Pocket 56k" as the office device and the rail-mounted "Modem 56k in the substation ensure a secure serial data communication with SIPROTEC 3 devices using 8E1 (with Parity-Bit) up to 19,2 kBd, or with SIPROTEC devices using 8N1 up to 57,6 kBd.
With the same analog modem „Pocket 56k" in the office it possible to establish a connection to SIPROTEC 4 devices with EN 100 interfaces in a local Ethernet network by using the rail-mounted modem router "MoRoS Modem 56k"in the substation.

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