Introduction to the SINAUT ST7 system
1.4 The classic SINAUT ST7 modems
Station control system
System Manual, 07/2009, C79000-G8976-C178-07
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These modems can be attached to the serial modem port of a suitably equipped TIM module
(TIM 3V-IE and all TIM 4 variants).
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).
Figure 1-8
Connectors of a SINAUT ST7 modem
1.4.2
Overview of all modem variants and accessories
The modems are supplied along with the necessary WAN connecting cable. Cables for
connecting the modems to a TIM must be ordered separately.
Table 1- 2
Overview of all modem variants
Short name
Order no.
Explanation
MD2
6NH7810-0AA20
Dedicated line modem
for multipoint connection, can be tapped, can also be used
as a repeater,
max 19,200 bps
MD3
6NH7810-0AA30
Modem for the analog telephone network,
max. 33,600 bps
Can also be used as a dedicated line modem for a point-to-
point link,
max. 33,600 bps in the voice band
MD4
6NH7810-0AA40
Modem for the digital ISDN network,
max. 64,000 bps
R-ADAPT
6NH7760-0AA
Adapter for installing the modem MD2 ... MD4 on a 35-mm
standard rail
