Ediseja 21 CMU 100 Series User manual
CMU 100 - RS232 to RS485 Con erter
Content
1 PREFACE.......................................................................................................3
2 CMU 100 SYSTEM.........................................................................................5
2.1 DESCRIPTION..................................................................................................................... 5
2.1.1 SOFTWARE...................................................................................................................... 5
2.1.2 HARDWARE...................................................................................................................... 5
3 RS232 TO RS485 CONVERTER...................................................................7
3.1 DESCRIPTION..................................................................................................................... 7
3.2 TYPICAL APPLICATION...................................................................................................... 7
3.3 APPEARANCE..................................................................................................................... 8
3.4 ARDWARE DESCRIPTION................................................................................................8
3.4.1 MAIN BOARD.................................................................................................................... 8
3.4.2 RS232 INTERFACE BOARD............................................................................................. 9
3.4.3 RS485 INTERFACE BOARD...........................................................................................10
4 SC EMATIC.................................................................................................13
5 INSTALLATION............................................................................................14
5.1 INSTALLATION.................................................................................................................. 14
6 COMMISSIONING & MAINTENACE..........................................................16
6.1 COMMISSIONING.............................................................................................................. 16
6.2 MAINTENANCE................................................................................................................. 16
7 TEC NICAL DATA.......................................................................................17
8 DIMENSIONS...............................................................................................19
9 ORDERING...................................................................................................20
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2 Ediseja 21 CMU 100 / 1.1.5 - 0 User manual CMUMU115 01.09.2019
PREFACE
1 PREFACE
Liability statement
We ha e checked the contents of this manual to ensure that the descriptions of both hardware
and software are as accurate as possible. Howe er, de iations may occur so that no liability can
be accepted for any errors or omissions contained in the information gi en.
The contents of this manual will be checked in periodical inter als, corrections will be made in
the following editions.
We reser e the right to make technical impro ements without notice.
Contact
If you ha e any questions or comments related to this product please contact us on:
Ediseja 21 d.o.o.
Stegne 21C
1000 Ljubljana
Slo enia – EU
Tel: 00 386 51 643 411, 051 643 411
Email: grega.flander@ediseja21.com
www.ediseja21.com
Copyright
Copyright © Ediseja 21, 2019. All rights reser ed.
Explanation of the symbols
Read the instructions!
De ice was tested with 2,5 kV AC oltage to check the de ice insulation.
De ice ground terminal.
Waste Electrical and Electronic Equipment (WEEE) Directi e 2002/96/EC; the affixed
product label indicates that you must not discard this electrical/electronic product in
domestic household waste.
Warnings
In this paper the following terms are used:
Danger
indicates that death, se ere personal injury or substantial property damage will result if proper
precautions are not taken.
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Ediseja 21 CMU 100 / 1.1.5 - 0 User manual CMUMU115 01.09.2019 3
CMU 100 - RS232 to RS485 Con erter
Warning
indicates that death, se ere personal injury or substantial property damage can result if proper
precautions are not taken.
Caution
indicates that minor personal injury or property damage can result if proper precautions are not
taken. This particularly applies to damage on or in the de ice itself.
General information
These paper contain the information that is necessary for the proper and safe operation of the
described de ices. This paper is intended for technically qualified personnel.
Warning!
azardous voltage is present inside the device during operation. Disregarding of safety
rules can result in severe personal injury or property damage.
Only qualified personnel may work with described devices after being familiar with warnings and
safety notices in this paper and other safety regulations.
Warning!
Device must operate completely assembled! Device must be used as described. No
modifications of the device should be made.
Warning!
Do not open device while it is energized! azardous voltage is present inside the
device. Disconnect all connectors before opening!
Warning!
If device is damaged disconnect it from power supply! Send it to the manufacturer for
inspection.
Warning!
Connect to earth before attaching power supply!
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CMU 100 SYSTEM
2 CMU 100 SYSTEM
2.1 DESCRIPTION
Communication unit (CMU 100) is modular system of communication de ices that can be used
for arious of tasks such as:
communication con erter (for example RS232 to RS485)
star coupler (for example 1 fiber optic to 7 fiber optics)
repeater (for example RS485/485)
communication isolator (for example for pre enting ground loops)
communication listener - debugger
PC serial com port extender (for example USB to 4 serial com)
CMU 100 de ice is a couple of software and hardware. For different purposes, different software
ersions and different hardware configuration ha e been de eloped.
2.1.1 SOFTWARE
Software is application dependent and allows different hardware configurations. Software's task
is switching between communication ports and allows almost any combination between them.
2.1.2 ARDWARE
Hardware is based on main board with power supply and port switching logic. On that board,
interface boards are attached. CMU 100 can handle up to 8 different interface boards. Currently
a ailable interface boards:
RS232
isolated RS485
Multimode Fiber Optic with ST and SMA connectors
Singlemode Fiber Optic with SC connectors
Versatile Link Fiber Optic
USB
ethernet (with one irtual com port)
Housing is aluminium and intended for mount on standard DIN 35 rail (acc. to DIN EN 50022). 3
different housings ha e been made. Depends on how many interfaces de ice has, appropriate
housing is used.
ardware settings
All settings on the de ice can be made from outside by a DIL switch. It is not necessary to open
the housing.
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RS232 TO RS485 CONVERTER
3 RS232 TO RS485 CONVERTER
3.1 DESCRIPTION
This de ice allows communication between two de ices with different communication interfaces.
It contains one RS232 and one half duplex RS485 interface. Data is send from RS232 to RS485
and ice ersa.
Wide power supply oltage allows connection to all common station batteries. Additionaly it can
be also connected to standard AC oltages.
This de ice is intended for use in cubicles and cabinets in all kinds of power production,
transmission and distribution stations. It requires no maintenace. All normaly used connectors,
switches and light indicators are accessed at the front side of the de ice. One light indicator
indicates power supply oltage, others indicate communication transfer.
3.2 TYPICAL APPLICATION
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Picture 2: Typical application
CMU 100 - RS232 to RS485 Con erter
3.3 APPEARANCE
3.4 ARDWARE DESCRIPTION
This configuration of de ice is made from main board (power supply, LEDs), one RS232
interface board and one RS485 interface board.
3.4.1 MAIN BOARD
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8 Ediseja 21 CMU 100 / 1.1.5 - 0 User manual CMUMU115 01.09.2019
Picture 4: Front view
Picture : Typical application
HARDWARE DESCRIPTION
Power LED indicates that de ice is turned on. The right LEDs of one port shows acti ity on
recei e (Rx) line and the left one shows acti ity on transmit (Tx) line.
Ports Configuration
Port 1 2
Interface RS232 RS485
3.4.2 RS232 INTERFACE BOARD
Description
Single, nonisolated, full duplex, RS232 port with DB9 female connector. Supported Rx, Tx and
GND pins.
Connector pin table
DB9 F 2 3 5
Description RX TX GND
Direction IN OUT -
Cable for connection to PC
CMU 100
DB9 M pin Signal
Direction PC
Signal DB9 F pin
2 RX <------- TX 3
3 TX -------> RX 2
5 GND <-------> GND 5
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Picture 5: DB9 Female connector
CMU 100 - RS232 to RS485 Con erter
3.4.3 RS485 INTERFACE BOARD
Description
Single, gal anically isolated, half duplex, RS485 port with Phoenix 3 pin screw connector, with
automatic switch to recei e after end of transmission and with additional terminating and
stabilizating resistors.
ardware settings
For proper functioning of that board some settings must be done:
RS485 bus termination and stabilisation
baud rate
RS485 bus termination and stabilisation
TERMINATION
At high transmission rates or long distance, RS485 bus termination is necessary.
The termination on RS485 bus must be set on both ends of the RS485 bus.
STABILISATION
Some de ice, to work properly, demands that RS485 must always be in known and alid state.
That is, when + (positi e) pin is more than 200 mV positi e than – (negati e) pin. Pins + and –
are sometimes marked as A and B. In case that no de ice on RS485 bus is transmitting or in
case of short circuit, there is no oltage difference between those pins and some de ice do not
work correctly.
On this port board so called „true fail-safe“ RS485 chip is used so board works correctly without
stabilisation at in alid RS485 bus state. But still switches for stabilisation are pro ided on port
board. The stabilization on RS485 bus may be set on one device only!
Switches at the lower side of connector:
Switch 4 5 6
Description RS485 stabilisation RS485 termination RS485 stabilisation
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Picture 6: RS485 BUS schematic
HARDWARE DESCRIPTION
Switches at the upper side of connector:
BAUD rate
bit/s Switch
Interface 5 Interface M Interface L 1 2 3
19200 4800 300 OFF OFF OFF
38400 9600 600 OFF OFF ON
57600 19200 1200 OFF ON OFF
115200 38400 2400 ON OFF OFF
BAUD rate setting 19,2 kbit/s is alid for all standard communication protocols, that do not
request special timings. If special protocols (small request-respond time required) are used
please note it in order.
NOTE! If there are problems with communication, try using higher speed setting. Some
manufacturer have different markings for B and A line. Try to switch A and B wires. See
http://en.wikipedia.org/wiki/RS-485 for detailed information.
Connector pin table
MSTB 1 2 3
Description GND - (B) + (A)
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Picture 7: RS485 interface board appearance with switch settings
CMU 100 - RS232 to RS485 Con erter
5 INSTALLATION
5.1 INSTALLATION
Warning!
azardous voltage is present inside the device during operation. Disregarding of safety
rules can result in severe personal injury or property damage.
Only qualified personnel may work with described devices after being familiar with warnings and
safety notices in this paper and other safety regulations.
Following instruction must be taken into consideration:
The de ice must be accessible to qualified personnel only.
The de ice is permitted to operate in enclosed housing or cabinet only.
The de ice location must be ibration-free.
The admisible operating temperature must be obser ed.
Check the de ice for damage at unpacking. If de ice is damaged it must not be installed
but it should be send to the manufacturer for repair.
The de ice should not be opened.
The de ice should be mounted on a 35 mm rail (acc to EN 50022).
Attach ground wire before attaching power supply. De ice must be grounded during
operation!
Single core or stranded wire 0,5 – 2,5 mm2 must be used for power supply connection. If
stranded wire is used, ferrules must be used to pre ent fraying. Recommended stripping
lenght is 5 mm.
Protecti e earthing wire must be terminated with tinned copper ear terminal.
The prescribed bending radius of the optical fibre cables must be obser ed.
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CMU 100 - RS232 to RS485 Con erter
6 COMMISSIONING & MAINTENACE
6.1 COMMISSIONING
Warning!
azardous voltage is present inside the device during operation. Disregarding of safety
rules can result in severe personal injury or property damage.
Only qualified personnel may work with described device after being familiar with warnings and
safety notices in this paper and other safety regulations.
Following instruction must be taken into consideration:
De ice must operate completely assembled! De ice must be used as described. No
modifications of the de ice should be made.
Attach ground wire before attaching power supply. De ice must be grounded during
operation!
Check if the power supply oltage complies with de ice operation oltage.
Do not open de ice while it is energized! Hazardous oltage is present inside the de ice.
If single mode fiber optic interface is used, do not look into the laser beam.
6.2 MAINTENANCE
The de ice is maintenance-free. Disconnect power supply before cleaning it. Use moist cloth.
Do not use liquids.
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TECHNICAL DATA
7 TEC NICAL DATA
Power supply
CMU 100 / 1... CMU 100 / 7...
Rated voltage DC 110 - 250 V 48 - 60 V
AC 230 V 48 V
Permissible voltage range DC 88 - 350 V 38 - 72 V
AC 70 - 264 V 30 - 50 V
Input current DC 7 - 4 mA 33 - 31 mA
AC 13 mA 56 mA
Fuse (internal) 2 A T
Power supply indicator green LED marked PWR
Voltage dips 20 ms
Connector type screw type „MSTB“ Phoenix 2pin
Power Supply Wire
crossection 0,5 – 2,5 mm2
type single or stranded wire
oltage rating 500 V
colour see alid standard
Ground wire crossection Cu, 2,5 mm2
colour see alid standard
Communication port RS232 (interface type 1)
Type RS232
Direction full duplex
Speed* up to 230 kbit/s
Distance up to 15 m
Isolation none; (GND earthed)
Connector type DB9 female
Lines in 1 (Rx)
Lines out 1 (Tx)
Communication port RS485 (interface type 5, M & L)
Type RS485
Direction half duplex
Interface type 5 19,2 - 115,2 kbit/s
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CMU 100 - RS232 to RS485 Con erter
Communication port RS485 (interface type 5, M & L)
Speed* Interface type M 4,8 - 38,4 kbit/s
Interface type L 300 - 2400 bit/s
Distance up to 1200 m
Isolation 1000 V DC
Connector type „MSTB“ Phoenix 3pin
Termination 120 Ohm
Max number of devices
on RS485 bus 32
* slowest interface defines de ice's maximum speed
Other data
Weight approx. 0,3 kg
Dimensions
(see picture)
(H) (D) (W)
105 mm 111 mm + connectors 40 mm
Temperature range 0 °C to +55 °C
umidity operating up to 95 % (noncondensing)
Enclosure Material Al
IP 20
Mount type standard DIN 35 rail (acc. to DIN EN 50022)
Class I
Overvoltage category II
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CMU 100 - RS232 to RS485 Con erter
9 ORDERING
ORDERING NUMBER: CMU 100 / c . c . c . c . c . c . c . c . c - c . c
Mother Board + Enclosure + :
Power supply: DC 110 - 250 V or AC 230 V
2 ports con erters (no echo possible, mark Function as 0) ............................................... 1
2 to 8 ports con erters, star couplers, ... (echo possible) .................................................. 2
Power supply: DC 48 - 60 V or AC 48 V
2 ports con erters (no echo possible, mark Function as 0) ............................................... 7
2 to 8 ports con erters, star couplers, ... (echo possible) .................................................. 8
(De ice width: 2 ports - 40 mm, 3 ports - 55 mm, 4 - 8 ports - 85 mm)
Interfaces: (up to 8 ports; if more than 8 ports are needed see CMU 200 de ices)
None ........................................................................................................................ lea e empty
RS232 noisolated, Rx & Tx support (up to 230 kbit/s, 15 m) ......….......................................... 1
RS232 nonisolated, Rx & Tx support (custom made: LDU ersion with rectifiers) ….............. C
RS485 isolated, half duplex (19,2 kbit/s – 115,2 kbit/s, 1200 m) ….......................................... 5
RS485 isolated, half duplex (4,8 kbit/s - 38400 kbit/s, 1200 m) .............................................. M
RS485 isolated, half duplex (300 bit/s – 2400 bit/s, 1200 m) …............................................... L
Versatile (650 nm) fiber optic for 1 mm plastic connector (up to 40 kbit/s, 110 m) ................. P
Multimode (820 nm) fiber optic with ST connector (up to 2,048 Mbit/s, 500 m) …................... 6
Multimode (820 nm) fiber optic with SMA connector (up to 2,048 Mbit/s, 500 m) .................... 7
Singlemode (1310 nm) fiber optic with SC connector (up to 2,048 Mbit/s, 20 km) .................. S
Singlemode (1310 nm) fiber optic with FC connector (up to 2,048 Mbit/s, 20 km) .................. T
Singlemode (1310 nm) fiber optic with ST connector (up to 2,048 Mbit/s, 20 km) .................. U
USB (one irtual com port) ....................................................................................................... 8
Ethernet 10/100Base-TX port ser er with one irtual com port (100 m) .................................. 9
Ethernet 100Base-TX (to be used with F interface only) (100 m) ............................................ E
Ethernet 100Base-FX multimode (1300 nm, 2000 m) (to be used with E interface only) ........ F
Function:
Con erter 2 ports (when Mother Board marked as 1 or 7 is used) …........................................... 0
Con erter 2 ports, 4 groups (4 independent channels) …............................................................. 7
Star coupler (1 master, 2 to 7 sla es) …..................................................................................... 12
Star coupler (1 master, 4 to 6 sla es, 1 listener) ….................................................................... 14
Star coupler (2 masters, 2 to 6 sla es) …..................................................................................... 5
Star coupler (3 masters, 3 to 5 sla es) …..................................................................................... 9
Node ….......................................................................................................................................... 8
Software Version:
Software ersion ................................................................................................................. lea e empty
Additional accessories (order if needed):
- power supply cable with „schuko“ plug, 2 m
- RS232 cable to PC (state the lenght up to 15 m)
- fiber optic cables (state the lenght)
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20 Ediseja 21 CMU 100 / 1.1.5 - 0 User manual CMUMU115 01.09.2019
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