Specifications

Hardware Information

7-11

SIMATIC Box PC 620 Manual

A5E00131465-01

Gender Changer for COM1

You can convert the COM1/V24 / AG port of the SIMATIC PC family into the usual

25 pin male connector by means of the enclosed gender changer (25 pin / 25 pin).

For this, you only have to plug the gender changer onto the COM1 socket and

secure it with the two hexagon head screws.

The V24 and TTY interfaces for COM1 can be alternately used. The factory set

default value is V24 operation. Switching from V24 to TTY operation is described in

Section 5.1.2.

Serial Port COM2 (V24/Mouse)

The serial port (COM 2) on the Box PC has the following pinout:

Figure 7-2 Serial Port COM 2 (Connector)

Pin No.

Designation Description Input / Output

1 DCD (M5) Receiving signal level

carrier

Input

2 RxD (D2) Received data Input

3 TxD (D1) Transmitted data Output

4 DTR (S1) Terminal ready Output

5 GND (E2) Functional ground

(reference potential)

6 DSR (M1) Readiness for operation Input

7 RTS (S2) Switch on transmitter Output

8 CTS (M2) Ready to transmit status Input

9 RI (M3) Incoming call Input