Installation
cVEND plug
FEIG ELECTRONIC GmbH
Page 14 of 24
cVEND
plug - User manual.docx
4.4. Connector X4 - RS232-LVTTL (UART#0) Interface
At connector X4 a RS232 interface on LVTTL 3.3V level is provided. This interface offers also
hardware handshake.
Fig. 13: RS232-LVTTL Interface at connector X4
Required Connector:
The fitting complement for this connector consists of a 6 -pole plug Type JST PH and the
appending Crimp contact.
Manufacturer ordering code:
JST PHR-6 - housing, 6-pole, grid dimension 2.0 mm, Single Row
JST SPH-002T-P0.5 or SPH-004T-P0.5 Crimp contact
Table 5: Pin Assignment RS232 LVTTL Interface
PIN
Label
Direction
1
Device RTS
O
2
GND
-
3
Device RXD
I
4
Device TXD
O
5
Device CTS
I
6
Wake-Up
I/O
see 4.6. Wake-Up
NOTE:
The length of the cable to the RS232-LVTTL interface should be kept as short as possible,
and must in any case not exceed 3 m.