Siemens SIMATIC NET SINAUT ST7 System Manual page 281

Figure 6-31
Settings for a standard dedicated line profile
Apart from the default setting for the dedicated line mode, switches SW2.2, SW2.3 and
SW2.4 can be used to select one of the 8 dedicated line profiles. Standard dedicated line
profiles 8 to 14 are default settings that enable the MD3 modem to be operated without any
programming using a terminal program if one of these dedicated line profiles matches the
intended application. Standard dedicated line profile 15 can be freely configured by the user
and therefore requires programming by a terminal program before it can be put into
operation.
The procedure is as follows:
Turn of the power supply and set the four switches SW2.1 to SW2.4 to the required position.
When you turn on the power supply, the modem then adopts the selected standard
dedicated line profile.
The following table lists the properties of the individual dedicated line profiles and how to set
them using the switches mentioned above.
Table 6-33
Profile no.
8
9
10
11
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
Point-to-point link between two MD3 modems over a 2-wire dedicated line
Setting standard dedicated line profiles
Meaning
300 bps (direct)
(suitable only for RS-232 port)
1200 bps (direct)
(suitable only for RS-232 port)
2400 bps (direct)
(suitable only for RS-232 port)
9600 bps (direct)
(suitable only for RS-232 port)
Installing and putting a SINAUT modem into operation
6.6 Analog dial-up modem MD3
Setting on DIL switch
281