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Saia-Burgess Controls AG
Manual PCD7.D412DTPF & PCD7.D4xxxT5F │ Document 27-620 – Release ENG07 │ 2019-06-20
3-8
Logic Controller
Communications interfaces
3
3.1.2.2
PCD7.F121S Serial interface module RS-232
suitable for modem connection
PCD7.F121S
RS-232 connection
Port x.1
RS-485
10 pin spring-loaded terminal block
0 PGND
TxD
1
2
RxD
RTS
3
4
CTS
PGND 5
6
DTR
DSR
7
8
COM
DCD
9
RS-232 connection to DTE
RS-232 connection to DCE
6 DTR
0 PGND
1 TXD
2 RXD
3 RTS
4 CTS
5 PGND
7 DSR
9 DCD
PGND
TX
RX
RTS
CTS
SGND
DTR
DSR
DCD
cable
Peripherie
device (DTE)
8 Reserve
PGND
TX
RX
RTS
CTS
SGND
DTR
DSR
DCD
0 PGND
1 TXD
2 RXD
3 RTS
4 CTS
5 PGND
6 DTR
7 DSR
9 DCD
8 Reserve
cable External modem
(ETCD) DCE