Installing and putting a SINAUT modem into operation
5.9 Installing and putting a SINAUT MD2, MD3, MD4 modem into operation
Station control system
System Manual, 07/2009, C79000-G8976-C178-07
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6.
To connect the modem to the TIM, the 9-pin D-sub connector of the mode and
connecting cable must be plugged onto the X1 connector (RS-232 interface) or X2
connector (RS-485 interface) of the modem and screwed tight.
Note
The standard connecting cable 6NH7701-4AL for connecting the modem to a TIM module
(RS-232) is connected to the modem "head first" so that the cable comes away towards
the top.
With a TIM 4, the standard connecting cable is also connected from above. With the
TIM 3V-IE variants and the TIM 4R-IE, the cable is connected from below.
7.
To install further modems in a rack, follow the same steps as described above.
8.
Once all the modems are installed, the power supply can be turned on.
–
A type MD2 or MD4 modem starts up but does not indicate anything with its LEDs until
it is activated by the TIM.
–
The MD3 modem starts up and indicates the presence of the power supply by its DCD
LED lighting up. The other LEDs of the modem only light up when it is activated by the
end device.
5.9.3
Installation on a 35 mm standard rail
To install the modem on a 35 mm standard rail, the 6NH7760-0AA adapter is required (must
be ordered separately).
Figure 5-55 Adapter for installation on a 35 mm standard rail
Fit the modem onto the adapter in the same way as the modem is fitted to an S7-300 rail.
Screw the modem to the adapter. The modem is now prepared for installation on a standard
rail and can be clipped onto it.
The remaining steps in installation are analogous to installation on an S7-300 rail.
