Westermo MD-64 H User Manual

Converter, fibre-optic – RS-232/V.24

INSTALLATION MANUAL

6070-2281

www.westermo.se

MD-62H AC

MD-62H DC

©

Westermo Teleindustri AB • 2001 • Rev. A

Galvanic

Isolation

Transient

Protection

CE

Approved

2 6070-2001

Specifications MD-62H

Transmission Asynchronous, full/half duplex or simplex
Interface 1 EIA RS-232/ITU-T V.24 9-position D-sub connector

female or 9-position detachable screw-terminal

Interface 2 ST-connectors, see table of power budget
Data rate Up to 115.2 kbit/s

Indicators Power, TD, RD, RTS, CTS
Temperature range 5-50°C ambient temperature
Humidity 0-95% RH without condensation
Dimension 55x100x128 mm ( WxHxD)
Weight 0.4 kg AC / 0.25 kg DC
Mounting On 35 mm DIN-rail
Power supply alternatives

Model description

MD-62H MD-62H MD-62H MD-62H
AC 115V AC DC 36–55V DC

Power supply 230V AC 115V AC 24V DC 48V DC

+15/–10% +15/–10% +50/–50% +15/–25%
Frequency 48–62 Hz 48–62 Hz – –
Fuse, F2 100 mA S 100 mA S 1.6 A S 1.6 A S

5x20 mm 5x20 mm 5x20 mm 5x20 mm

Littelfuse Littelfuse Littelfuse Littelfuse
Power consumption 27 mA 54 mA 1.5 W 1.5 W
Overvoltage protection 430 V 220 V – –
Isolation 3 000 V 3 000 V 1 500 V 1 500 V

RMS

Functional description MD-62H

MD-64H is developed for RS-232/V.24 point to point or multidrop (with LD-63H)
communication via fibre optic cables.

The H-version is developed for data and status transmission in a multidrop network.
Transmission rates up to 115.2 kbit/s and transmission distances up to 25 km is possible.

The MD-62H consists of one F/O channel with separate transmitter and receiver,
Tx and Rx. On the front of the unit there are also three LED’s indicating the data
transmission on the channel. The fibre optical cable is completely immune to external
interference, which makes it ideal for harsh environments.

36070-2001

Status signal disabled implies an active CTS to
the connected equipment.

Switch settings MD-62H

The MD-62H can, through switch settings, be set in to several modes.
To set the switches, open the plastic case by removing the top cover.

Status signal

Factory settings

S1 Disabled

ON

123456789

S1 Enabled

ON

123456789

S1

ON

123456789

S2

ON

12345

S2

ON

12345

Switch S1: 2–9 not used

Transmitted power

Low

S2

ON

12345

High

Switch S2: 1–4 not used

S1:1-9 S2:1-5