Why Set An Operating Mode? Technical Background; Special Features When Connecting Two Gigaset M105 Or M101 Data Units; Notes On The Com Interface - Siemens M105 Operating Instructions Manual



Why set an operating mode? Technical background

Special features when connecting two Gigaset M105 or M101 Data units

Notes on the COM interface

Configuration is always performed for both data modules on connection
link. In the case of registration at a Gigaset 3070/3075isdn, the transmis-
sion parameters are set automatically; apart from the assignment of a
name, no other settings are necessary.
A Gigaset M105 Data unit is powered via the USB port but operates like
a COM interface with regard to data. For this reason, the transmission
rate is also provided.
Gigaset M105 Data is connected to a Gigaset M101 Data, the firmware
version of the Gigaset M101 Data must be V2.0. This firmware can be
downloaded free of charge from the Internet site
mens.com/ic/products/cd/deutsch/index/support/pcsupport/Default.htm.
Î
see "Access to different V.24 terminals from a laptop:" on page 24.
Î
see "Sequential access from multiple computers to a terminal:" on
page 25 .
Serial interfaces are more than connectors. They have an integrated da-
taflow control, control lines, data lines and an adjustable speed function.
Serial interface are used to transport data in various formats.
Modems are usually controlled with AT commands or proprietary proto-
cols that they receive via their serial interface. On the basis of these com-
mands, modems can recognise the data format and speed at which the
data is transferred. The automatic recognition of transmission parameters
is important and must be emulated by the radio link if a device that under-
stands the AT or AVM-compatible commands and that is used for param-
eter synchronisation is connected to the remote adapter.
A cordless extension cable between a PC and, for example, a modem
must detect the transmission parameters to be used at the PC interface
for communication between this interface and the modem. On the modem
side, the functions generated by the PC must also be created for the se-
rial interface.
On the radio link, data is transmitted according to a radio protocol that has
nothing to do with the serial interface.
If a device which cannot detect transmission parameters in the same way
as a modem is connected to the remote adapter, "Direct connection" is
selected as the operating mode.
A
Configuration program options
The USB bus cable cannot be extended!
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