gefran DIGISTAR II Installation And Operation Manual page 28

INSTALLATION and CONNECTIONS
COM4 on the RJ10 connector is limited to signals TX and RX. Full functionality of COM4 can be restored via the adapter cable.
28
DB-9 connector: Serial COM3
PIN RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
2x5 connector: Serial COM4
PIN RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
10 GND
RJ-10 connector: Serial COM4
PIN RS-232
1 GND
2 RXD
3 TXD
4 RTS
80544B_MHW_DIGISTAR II - DIGISTAR II Control - GF-BOX_02-2013_ENG
J2 J10 J10
(COM3) (COM4) (COM4)
10 9
1 5 1 4
2 1
6 9
RS-422
RX-
RX+
TX+
TX-
GND
RS-422
RX-
RX+
TX+
TX-
GND
GND
RS-422
NOT
USED
J10
(COM4)
J10
(COM4)
J2
(COM3)
RS-485
RX- / TX-
RX+ / TX+
RX+ / TX+
RX- / TX-
GND
RS-485
RX- / TX-
RX+ / TX+
RX+ / TX+
RX- / TX-
GND
GND
RS-485
GND
RX+ / TX+
RX- / TX-
VCC