Siemens SIMATIC NET TeleControl SINAUT ST7 System Manual page 124

Installing and putting a TIM into operation
4.3 Options for connecting up and settings for the TIM 4R or TIM 4RD
Pinout of the X3 RJ-45 Western jack for the RS-232/RS-485 port
The X3 connector of the combined RS-232/RS-485 port is designed as an 8-pin RJ-45
Western jack. The pinout is shown in the following table.
Table 4- 3 Pinout of the X3 RJ-45 Western jack for the RS-232/RS-485 port
Illustration
Interface adapter cable
The TIM 4R / TIM 4RD has a second serial interface X3 (combined RS-232/RS-485).
An adapter cable is required to connect the second serial port with an external modem or
other transmission device. At one end of this cable, there is an RJ-45 plug and at the other
end, a 9-pin D-sub miniature male connector to which the normal connecting cable to the
modem or transmission device can be connected.
The adapter cable is supplied with each TIM 4R/4RD module. The adapter cable is no longer
available as separate spare part.
Table 4- 4 TIM 4R / 4RD interface adapter cable
Order no. Description
6NH7700-0AS05 Adapter cable for connecting the 2nd serial RS-232/RS-
485 port integrated in a TIM 4R / 4RD to convert the
internal plug (RJ-45) to the 9-pin D-sub miniature male
connector required externally.
Cable length 0.5 m
The following table shows the pinout of the two connectors for the standard connecting cable
mentioned above.
124
Pin no. Signal name
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
Signal direction
Input
Input Pin with 8-pin DIL switch can be
set to RS-485.
Output Pin with 8-pin DIL switch can be
set to RS-485.
Output
Input
Output
Input
Illustration
SINAUT ST7 station control system
System Manual, 09/2016, C79000-G8976-C178-10
Remark