Westermo MA-45 AC Manuel D'installation page 13

Line connection
4-wire
MA-45
Twisted pairs
1
A'
Receiver
2
B'
3
Transmitter
A
4
B
1)
Shield
5
1) If shielded cable is used, connect the shield only at one end to avoid ground currents.
Transmission range (interface 2)
Use twisted pair cable. Max transmission range 1 200 metre.
(cable specifications 0.3 mm
The transmission range will increase if a cable with lower capacitance and larger
diameter is used.
Use shielded cable in heavy industrial environments.
MA-45 DC
Specifications
Power supply
Power consumption
Insulation
Fuse F1
All other specifications according to MA-45 AC
Switch settings
According to MA-45 AC
Connections
According to MA-45 AC, except power supply
Power
Connection
supply
no.
1 + Voltage
2 – Voltage
3
6045-2001
RS-422
equipment
A
Transmitter
B
A'
Receiver
B'
2 and capacitance 42 pF/m).
12–36 V DC
Max 2 W
1 000 V
1.6 A fast 5x20 mm
POWER
12-36VDC CONNECTION
1 2 3 1 2 3 4 5
2-wire
MA-45
Twisted pairs
3
Transmitter/
A/A'
Receiver
4
B/B'
1)
Shield
5
LINE
V.24/RS-232-C
CONNECTION
RS-485
equipment
Transmitter/
A/A'
Receiver
B/B'
13