Modems; A.2 Modems - Siemens SIMATIC TIM 3V-IE DNP3 System Manual

Accessories

A.2 Modems

A.2

Modems

The following modem variants are available:
● For dedicated line networks:
– MD2
● For dial-up networks:
– MD3
– MD4
Information on the devices can be found on the Internet pages of Siemens Industry Online
Support under the following entry ID:
89330308 (http://support.automation.siemens.com/WW/view/en/89330308)
These modems can be connected to the serial modem interface of the TIM.
Due to the design, the modems can be installed on an S7-300 standard rail just like the TIM
modules. As an alternative, the modems can also be installed on a 35 mm standard
mounting rail. In this case, an adapter is required that can be ordered separately.
The following figure shows the modem modules with further details (schematic
representation with the covers removed).
314
Dedicated line modem
for multipoint connection, can be tapped.
Can also be used as a repeater,
max 19200 bps
Modem for the analog telephone network,
max. 33600 bps.
Can also be used a dedicated line modem for a point to-point connection.
ISDN modem
RS-232/RS-485 interface,
max. 64000 bps
(no longer available)
System Manual, 12/2015, C79000-G8976-C253-04
TIM DNP3