Mounting On A Standard 35Mm Mounting Rail - Siemens SINAUT ST7 Operating Instructions Manual

Mounting and Installation
6. To connect the modem to the terminal equipment, the 9-pin Sub-D plug of the
modem cable should be inserted into the X1 socket (RS232 interface) or X2
socket (RS485 interface) of the modem and screwed tight.
Note
Standard cable 6NH7701-4AL for the RS232 connection of the modem to a
TIM3 or TIM4 module is inserted 'upside down', in other words, the cable
leads upward. The cable is also inserted from above on the TIM3/TIM4.
7. If other modems are to mounted into the rack, follow the procedures described
above for each one.
8. When all of the modems are mounted the power supply can be switched on.
The modem starts up but will first show activity on its LEDs when the terminal
equipment addresses it.
2.4.2

Mounting on a Standard 35mm Mounting Rail

Mounting the modem on a standard 35mm mounting rail requires the optional
6NH7760-0AA adapter. See illustration below.
Fig. 2-24 Adapter for mounting on a standard 35mm mounting rail
Hang the modem on the adapter, similar to the way it is mounted on an S7-300 rail.
Screw the modem tight on the adapter. Now the modem is ready for mounting on
the standard rail and can clipped into place.
The remaining steps for mounting are similar to those described in section 2.4.1
Mounting on an S7-300 Mounting Rail.
6NH7811-0AA22
2-38
© Siemens AG 2002 All Rights Reserved
MD2 Modem (07/2002)