6 electrical connection, 1 connection instructions, 2 connection plans – VEGA VEGACOM 557 PC-MODEM - Interface User Manual
Page 14: Interface cable pc – vegacom
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 z
d b z
d b z
d b z
d b z
2
2
2
2
2
4
4
4
4
4
6
6
6
6
6
8
8
8
8
8
1 0
1 0
1 0
1 0
1 0
1 2
1 2
1 2
1 2
1 2
1 4
1 4
1 4
1 4
1 4
1 6
1 6
1 6
1 6
1 6
1 8
1 8
1 8
1 8
1 8
2 0
2 0
2 0
2 0
2 0
2 2
2 2
2 2
2 2
2 2
2 4
2 4
2 4
2 4
2 4
2 6
2 6
2 6
2 6
2 6
2 8
2 8
2 8
2 8
2 8
3 0
3 0
3 0
3 0
3 0
3 2
3 2
3 2
3 2
3 2
N (-)
L1 (+)
+
-
COM557 front plate
(9 pole socket)
RS 232 - PC
(9 pole socket)