![Siemens SIMATIC NET TeleControl SINAUT ST7 Скачать руководство пользователя страница 183](http://html.mh-extra.com/html/siemens/simatic-net-telecontrol-sinaut-st7/simatic-net-telecontrol-sinaut-st7_system-manual_376822183.webp)
Installation and commissioning of the modems and routers
5.6 LTOP line transformer with overvoltage protection
SINAUT ST7 station control system
System Manual, 09/2016, C79000-G8976-C178-10
183
X1
Dedicated line (screw terminals 1, 2, 5, 6)
Chassis (screw terminals 3, 4)
X2
Modem attachment 2-wire over screw terminals
X2 + X3
Modem attachment 4-wire over screw terminals
X6
2-wire/4-wire modem attachment over RJ-12 Western connector; for direct connection of
the SINAUT ST7 MD2 modem over the standard connecting cable (RJ-12 – RJ-12) that
ships with this modem.
S1 + S2
Configuration switches
View from above
Schematic
5.6.2
Connecting up the MD2 modem
The following figures show the connection of the standard cable modem MD2-3. The
connection to the LTOP1 or LTOP2 is via the standard cable that ships with the modem. This
cable has RJ-12 Western plugs at both ends.
Please make sure that the MD2-3 modem has the correct line termination setting:
●
For end point 1200 or 2400 bps: 600 ohms
●
For end point 19,200 bps: 150 ohms
●
For a tapping point: High resistance
Note
Please make sure that the S1 and S2 switches are set correctly in position 1 or 2 as shown
in the following figures!
Содержание SIMATIC NET TeleControl SINAUT ST7
Страница 10: ...Preface SINAUT ST7 station control system 10 System Manual 09 2016 C79000 G8976 C178 10 ...
Страница 274: ...References 8 SINAUT ST7 station control system 274 System Manual 09 2016 C79000 G8976 C178 10 ...
Страница 292: ...Glossary SINAUT ST7 station control system 292 System Manual 09 2016 C79000 G8976 C178 10 ...