Manual

14 VEGACOM 557 - without protocol
Electrical connection
6 Electrical connection
6.1 Connection instructions
You should please note the following instruc-
tions for electrical connection:
- the connection must be made according to
the appropriate national installation stand-
ards (e.g. in Germany acc. to the VDE-
regulations).
- the voltage supply of VEGACOM 557 must
be made with low voltage to keep protec-
tion class II. When using VEGASTAB 593-60
or 593 a reliable separation of mains circuits
acc. to DIN/VDE 0106, part 101 is fulfilled.
- secure the connected cables or lines by a
strain relief which is available as are acces-
sory from VEGA. The strain relief is also
used as earth terminal for screened lines.
6.2 Connection plans
1
2
3
6
7
8
9
5
4
RS 232
CTS
RxD
TxD
RTS
GND
Pin Description I/O
1 CTS clear to send I
2 RxD receive data I
3 TxD transmit data O
4 RTS request to send O
5 GND ground –
D-SUB-plug (front plate)
Multipoint connector (rear of instru-
ment)
Supply voltage
DISBUS (not used
with VEGALOG)
Interface cable PC – VEGACOM
With an RS-232-interface cable (interlink
cable) you connect the PC (with the software
VVO or VV) with the VEGACOM-card.
DCD
RxD
TxD
DTR
GND
NC.
NC.
NC.
NC.
DCD
RxD
TxD
DTR
GND
NC.
NC.
NC.
NC.
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
d b zd b z
d b zd b z
d b z
22
22
2
44
44
4
66
66
6
88
88
8
1010
1010
10
1212
1212
12
1414
1414
14
1616
1616
16
1818
1818
18
2020
2020
20
2222
2222
22
2424
2424
24
2626
2626
26
2828
2828
28
3030
3030
30
3232
3232
32
N (-)
L1 (+)
+
-
COM557 front plate
(9 pole socket)
RS 232 - PC
(9 pole socket)