Westermo MA-42 - Manual (Page 8)

6042-2002
01.03 T
unaT
ryck AB, Eskilstuna, Sweden
Westermo Teleindustri AB • S-640 40 Stora Sundby, Sweden
Phone +46 16 42 80 00 Fax +46 16 42 80 01
E-mail: [email protected] • Westermo Web site: www.westermo.se
Westermo Teleindustri AB have distributors in several countries,
contact us for further information.
Westermo Data Communications GmbH
Bruchsaler Straße 18, 68753 Waghäusel
Tel.: +49(0)7254-95400-0 • Fax.:+49(0)7254-95400-9
E-Mail: [email protected] • Web: www.westermo.de Westermo Data Communications Ltd
Unit 14 Talisman Business Centre • Duncan Road
Park Gate, Southampton • SO31 7GA
Phone: +44(0)1489 580 585 • Fax.:+44(0)1489 580586
E-Mail: [email protected] • Web: www.westermo.co.uk
Subsidiaries
V.11/RS-422
RS-485 V.24/RS-232
Block diagram
SG
Power supply
A'
B'
A
B
Shield
TD
RTS
DTR
DCD
CTS
RD
DSR
PG
2)
7
0V
PE
1
2
3
4
PWR
TD
+5V
DCD
+5V
2
4
20
8
1
2
3
4
5
RTS
20mS
CTS
RD
5
3
+5V
S3
+5VB
6
1K
100R
1K
S2
6
0VB
5
F1
R44 R45
1)
1
PE
1) R46
PE 0VB
0VB
+5VB
0VB
+12V
S2
6
4
S3
3
5
S3
1
2
-12V
0V
+5V
2)
Insulated power supply
1) 0 Ω resistors R45 and R46 are normally not mounted.
2) Metal housing on D-sub is connected to PE.