Properties of the SINAUT components
1.4 The classic SINAUT ST7 modems
SINAUT ST7 station control system
56
System Manual, 09/2016, C79000-G8976-C178-10
Due to their 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).
Figure 1-32 Connectors of a SINAUT ST7 modem
1.4.2
Overview of the modems MD2, MD3, MD4 and accessories
The modems are supplied along with the listed WAN connecting cable.
Table 1- 18 Overview of the classic modem variants
Short name
Article number
Description
MD2
6NH7810-0AA20
Dedicated line modem, with RS-232/RS-485 interface, for
multipoint connection, can be tapped, can also be used as
a repeater, max 19200 bps
Including plug-in cable 6NH7700-2AR60 (RJ-12-RJ-12),
length 6 m, for connecting MD2 with LTOP. *
MD3
6NH7810-0AA30
Modem for the analog telephone network, with RS-232/RS-
485 interface, max. 33600 bps.
Can also be used as a dedicated line modem for a point-to-
point link, max. 33600 bps in the voice band.
Including plug-in cable 6NH7700-3BR60 (RJ-12-RJ-
12/TAE6), length 6 m, for connecting MD3 with a telephone
socket (TAE6 or RJ-12) or LTOP (in standard operation). *
MD4
6NH7810-0AA40
Modem for the digital ISDN network, with RS-232/RS-485
interface, max. 64000 bps.
Including plug-in cable 6NH7700-4AR60 (RJ-12-RJ-45),
length 6 m, for connecting MD2 (RJ-12) with an ISDN-S
0
socket (RJ-45). *
R-ADAPT
6NH7760-0AA
Adapter for mounting the modems MD2/MD3/M4 on a 35
mm DIN standard rail
* You will find the description of the plug-in cables in the section Cables for the WAN
connection of the modems (Page 67).
Содержание SIMATIC NET TeleControl SINAUT ST7
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