User's Manual

5 Connectors
Page 20 of 38
5.4 Connector X3 COM 0 (RS232 V.24 Interface)
X3 is the connector for an RS232 interface on V.24 level and is primarily intended as a cash register
interface.
Pin
Label
Direction
Remarks
1
Device RXD
I
2
Device TXD
O
3
Wake-Up
I/O
see 5.2
4
GND
-
Table 7: Pin Assignment RS232 V.24 Interface (X3)
Required Connector:
The fitting complement for this connector consists of a 4-pole plug type Molex Micro Fit and the appending
crimp contact.
Manufacturer Ordering Code:
Molex 43025-0400
Plug, 4-pole, grid dimension 3.0 mm, dual row, Molex Micro Fit housing
Molex 43030-0001
Crimp contact, female, grid dimension 3.0 mm, AWG#20-24, Molex Micro Fit
NOTE:
The RS232 interface is designed for max. 3 m (9.8 ft) cable length.
Fig. 13: Connector X3 COM 0