Westermo MD-54 - Manual (Page 2)

13 6605-2001
Specifications MD-54
Transmission Asynchronous, full/half duplex or simplex
Interface Channel 3: RS-232/V.24: 5-pin screw terminal
Channel 0: RS-232/V.24: 9-pin D-sub
RS-422/485: 5-pin screw terminal
Transmission rate Channel 3: 300–115 200 bit/s
Channel 0: RS-232/V.24: 1 200–115 200 bit/s
RS-422/485: 1 200–460 800 bit/s
Buffer Channel 3: 16 kb
Channel 0: 16 kb
Power supply 230V AC +15%/–10% 48–62 Hz, 12–36V DC
Isolation voltage 3000V AC, 1500V DC
Fuse AC 100mA fast 5x20 mm, DC 1.6A
LED Indicators PWR, RD0, TD0, L1, L2, L3, L4, L5, L6, L7, L8
Power consumption AC 30 mA, DC 1.5W
Temperature range 5–50°C, ambient temperature
Humidity 0–95% RH non-condensing
Dimension 55x100x128 mm (WxHxD)
Weight AC 0.5 kg, DC 0.3 kg
Mounting 35 mm DIN-rail
Description MD-54
The MD-54 is a device that solves serial data incompatibility problems between two
devices. For example it can be used as a ’CTS-generator’ or a ’XON/XOFF to RTS/CTS-
converter’. It can also be used as a parameter and/or speed-converter and data buffer.
The unit is set up using a terminal or PC and settings are stored in non volatile memory.
The unit consists of two RS-232/V.24 interfaces and two 16 kb data buffers, one in
each direction. There is also a RS-422/485 interface connected in parallel to one of the
RS-232/V.24 interfaces. Both RS-232/V.24 interfaces are DCE connections.
The front cover has 11 LED’s for status indication.
As with other Westermo products the MD-54 provides a high level of galvanic isola-
tion both on power and inputs. Operating modes are set-up via DIP-switches located
under the lid on the top of the unit. The MD-54 is available in both AC (230V) and DC
(12–36V) supply voltage. The unit is designed for mounting on 35 mm DIN-rail.