Ediseja 21 | CMU 200 | CMU 100 / 2.6.1.5 - Communication converters, star couplers

CMU 100 / 2.6.1.5 - Communication converters, star couplers
CMU 100
Star coupler
FO multimode
to RS232 & RS485
CMU100 / 2.6.1.5-2.x &
2.6.2.5-2.x
CMU 100 - Star coupler
Project
Communication devices
Device name
CMU100
Document
421304700026_v1-08_02_26-CMU100 star FO mm to RS232 & RS485.doc
Version
1
Author
Grega Flander
Date
26.02.2008
Reference
document
-
Consultants
-
Approved by
Grega Flander
Code
421304700026
History
1 – first release
2
PREFACE
Liability statement
We have checked the contents of this manual to ensure that the descriptions of both hardware
and software are as accurate as possible. However, deviations may occur so that no liability can
be accepted for any errors or omissions contained in the information given.
The contents of this manual will be checked in periodical intervals, corrections will be made in
the following editions.
We reserve the right to make technical improvements without notice.
Copyright
Copyright © Iskra SISTEMI 2007. All rights reserved.
Warnings
In this paper the following terms are used:
Danger
indicates that death, severe personal injury or substantial property damage will result if proper
precautions are not taken.
Warning
indicates that death, severe 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 device itself.
General information
These paper contain the information that is necessary for the proper and safe operation of the
described devices. This paper is intended for technically qualified personnel.
Warning!
Hazardous 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.
3
CMU 100 - Star coupler
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! Hazardous 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.
4
CMU100 SYSTEM
Description
Communication unit (CMU100) is modular system of communication devices that can be used
for various of tasks such as:






communication converter (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 communication between two devices on
different voltage levels)
communication listener - debugger
PC serial com port extender (for example USB to 4 serial com)
CMU100 device is a couple of software and hardware. For different purposes, different software
versions and different hardware configuration have been developed.
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.
Hardware
Hardware is based on main board with power supply and port switching logic. On that board,
interface boards are attached. CMU100 can handle up to 8 different interface boards. Currently
available interface boards:






(non)isolated RS232
isolated RS485
Multimode Fiber Optic ST and SMA connectors
USB
ethernet (with one virtual com port)
power supply supervision with digital output
There is possibility to use additional redundancy power supply.
Housing is aluminium and intended for mount on standard DIN 35 rail (acc. to DIN EN 50022). 4
different housings have been made. Depends on how many interfaces device has, appropriate
housing is used.
Hardware settings
All settings on the device can be made from outside by a DIL switch. It is not necessary to open
the housing.
5
CMU 100 - Star coupler
Picture 1: CMU100 system general diagram
6
FO MM to RS232 & RS485 STAR COUPLER
(TYPE CMU100 / 2.6.1.5-2.x & 2.6.2.5-2.x)
DESCRIPTION
Star coulpler is communication device that transfer data from one (master) to more than one
port. Example is when we need access to one device with several PCs. With CMU system we
can have one master and up to seven slave ports. Data is send from master port to all slave
ports. On the other hand data from either slave port is send to master port only.
Communication node is device that transfers data from either port to all other ports.
All mentioned types of CMU100 devices can operate as star coupler or communiction node.
TYPICAL APPLICATION
Picture 2: CMU100 / 2.6.1.5-2.x & 2.6.2.5-2.x star coupler typical application
SOFTWARE DESCRIPTION
This software version (2.x) allows two modes of operations:
star coupler with one master and two slave ports
Master device (for example IED) is connected to CMU to master port (1). Other two
CMU ports are slave ports (2,3) (connected for example to PCs) .
Data flows from port 1 to ports 2 and 3. On return data flows from 2 or 3 port to port 1
only.
 simple three port communication node.
Data flows from any port to other two ports.

7
CMU 100 - Star coupler
In each mode echo can be set on each port.
Modes are set by switch 4:


OFF – star coupler mode
ON – communication node mode
Port switching matrix according to switch 4
switch 4 OFF


switch 4 ON
IN \ OUT
1
2
3
1
2
3
1
*
X
X
*
X
X
2
X
*
X
*
X
3
X
X
X
*
*
X – active
* - active when echo on incoming data port is ON
HARDWARE DESCRIPTION
This configuration of device is made from main board (power supply, switches and logic switch),
and three RS232 port boards.
MAIN BOARD
Main board can handle up to 8 in and up to 8 out lines. That means up to 8 ports with (one) Rx
and (one) Tx line can be used. If port with more input or/and output lines is used number of ports
is reduced. For example if port with Rx, Tx, CTS and RTS lines is used up to 4 ports can be
adopted in the system used.
The right LEDs of one port shows activity on receive (Rx) line and the lower one shows activity
on transmit (Tx) line.
On the bottom side of device are switches and JTAG connector which is intended for
downloading necessary software. Do not connect anything to that connector.
Switches
8
Switch
1
2
3
4
Description
Echo port 1
Echo port 2
Echo port 3
Device mode
Position OFF
Echo off
Echo off
Echo off
Star coupler
Position ON
Echo on
Echo on
Echo on
Comm. node
Default position
OFF
OFF
OFF
OFF
Bottom view
Picture 3: CMU100 bottom view
Configuration of ports
Port
1
2
3
Interface
FO MM
RS232
RS485
RS232 INTERFACE BOARD
Description
Single, galvanically (non)isolated, 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
-
Picture 4: DB9 F connector outlook
9
CMU 100 - Star coupler
Cable
CMU100 / RS232 to PC / RS232
CMU100
Direction
DB9 F pin
Signal
2
RX
3
5
PC
Signal
DB9 F pin
<-------
TX
3
TX
------->
RX
2
GND
<------->
GND
5
RS485 INTERFACE BOARD
Description
Single, galvanically isolated, half duplex, RS485 port with Phoenix 3 pin screw connector.
Automatic switch to receive after end of transmission with additional terminating and
stabilizating resistors.
Hardware settings
For proper functioning of that board some settings must be done:
board address
RS485 bus termination and stabilisation
 baud rate


RS485 bus termination and stabilisation
TERMINATION
At high transmission rates or long distance, RS485 bus termination is necessery.
The termination on RS485 bus must be set on both ends of the RS485 bus.
STABILISATION
Some device, to work properly, demands that RS485 must always be in known and valid state.
That is, when + (positive) pin is more than 200 mV positive than – (negative) pin. Pins + and –
are sometimes marked as A and B. In case that no device on RS485 bus is transmitting or in
case of short circuit, there is no voltage difference between those pins and some device do not
work correctly.
On this port board so called „true fail-safe“ RS485 chip is used so board works correctly without
stabilisation at invalid RS485 bus state. But still switches for stabilisation are provided on port
board. The stabilization on RS485 bus may be set on one device only!
10
Switches at the lower side of connector:
Switch
1 (J13)
2 (J12)
3 (J11)
Description
RS485 stabilisation
RS485 termination
RS485 stabilisation
Picture 5: RS485 BUS schematic
Switches at the upper side of connector:
Baud rate
Switch
1 (J4)
2 (J5)
3 (J6)
Description
57600 BAUD
38400 BAUD
19200 BAUD
BAUD rate setting 19k2 (bps) is valid 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.
Connector pin table
MSTB
1
2
3
Description
GND
- (B)
+ (A)
Picture 6: RS485 interface board outlook
11
CMU 100 - Star coupler
Picture 7: Data rate vs cable lenght
FO MM INTERFACE BOARD
Description
Single, full duplex, multimode, fiber optic port with ST or SMA connectors (see ordering) with
both positive or negative logic.
Hardware settings
For proper functioning of that board some settings must be done:


board address
optic logic
Fiber optic logic


Switch SW1
1
2
3
4
Positive logic
OFF
ON
OFF
ON
Negative logic
ON
OFF
ON
OFF
Positive logic – light OFF in idle state
Negative logic – light ON in idle state
It is recommended that positive logic on FO interfaces is used (light OFF in idle state). In other
case, if optic loop on one port is broken, communication with other slave port, also will not work.
12
SCHEMATIC
Picture 8: CMU100/2.6.1.5-2.x and CMU100/2.6.2.5-2.x general diagram
MAINTENANCE
Device is maintenance-free. Do not use liquids for cleaning the unit. Disconnect power supply
before cleaning.
TECHNICAL DATA
Power supply
88-350 V dc
Input voltage
70-250 Vac
Power consumption
88 V dc
26 mA
2.29 W
250 V dc
9.3 mA
2.32 W
70 V ac
56 mA
3.92 VA
250 V ac
21 mA
5.25 VA
Voltage dips
20 ms
Connector type
„MSTB“ Phoenix 2pin
Wire crossection
0.75 – 2.5 mm2
Communication port RS232
Type
RS232
Direction
full duplex
Speed
up to 230 k BAUD
13
CMU 100 - Star coupler
Communication port RS232
Number of ports
1
Distance
up to 15 m
Isolation
without (GND earthed) or 1000 V DC (see
ordering)
Connector type
DB9 female
Lines in
1 (Rx) or 2 (Rx and RTS) (see ordering)
Lines out
1 (Tx) or 2 (Tx and CTS) (see ordering)
Communication port RS485
Type
RS485
Direction
half duplex
Speed
up to 230 k BAUD
Number of ports
1
Distance
up to 1200 m
Isolation
1000 V DC
Connector type
„MSTB“ Phoenix 3pin
Termination
120 Ohm
Max number of
devices on BUS
32
Communication port FO
14
Type
multimode fiber optic
Wave lenght
820 nm
Fiber size
50/125 μm, 62.5/125 μm, 100/140 μm, 200 μm
Optical output
power
-18 dB
Reciver sensitivity
-24 dB
Direction
full duplex
Speed
up to 230 k BAUD
Input
1 receiver (grey connector)
Output
1 transmitter (white connector)
Logic
light ON or OFF in idle state set by switch (see
table)
Echo
can be enabled by switch on main board
Number of ports
1
Distance
up to 500 m
Connector type
ST, SMA, SC, FC (see ordering)
Device
Weight
Dimensions
0,35 kg
105 mm
103 mm
55 mm
DIMENSIONS
Picture 9: CMU100/2.6.1.5-2.x and CMU100/2.6.2.5-2.x dimensions
15
CMU 100 - Star coupler
ORDERING CODE
ORDERING NUMBER:
CMU100 /
MB .

I1.I2.I3.I4.I5.I6.I7.I8

-
SV .

SR




Software Version:
no software (when MB marked as 1 is used) ....................................................... 0
three port star coupler / communication node with echo's ................................... 2

Mother Board + power supply + enclosure:
Power supply: 70-250Vac or 88-250 Vdc
2 ports (without echo) .......... 1
2................................................ 2
3 or 4 ports .... ........................ 2
5 or 6 ports ............................... 2
7 or 8 ports ............................... 2
Power supply with additional second (redundant) power supply (in development)
(both 70-250Vac or 88-250 Vdc)
2 ports (without echo) .......... 3
2................................................ 4
3 or 4 ports .... ........................ 4
5 or 6 ports ............................... 4
7 or 8 ports ............................... 4

Interfaces:
none ............................................................................... 0 or leave empty
RS232 nonisolated, Rx & Tx support ............................. 1
RS232 isolated, Rx & Tx support ................................... 2
RS232 nonisolated, Rx, Tx, CTS & RTS support .......... 3
RS232 isolated, Rx, Tx, CTS & RTS support ................ 4
RS485 isolated, half duplex ........................................... 5
FO multimode ST ........................................................... 6
FO multimode SMA ....................................................... 7
USB (one virtual com port) ............................................. 8
Ethernet (one virtual com port, three I/Os)..................... 9
Digital output ................................................................... A
Power supervision .......................................................... B
RS232 nonisolated, Rx & Tx support (special version)... C

Software Revision:
latest software revision ...................................................................................................... L
write the number of software revision needed (not recommended).................................... x
Example:
CMU100 / 2.1.5.6.7.10-2.L
or
is
star coupler / communication node with
- single high voltage power supply and
- 5 interfaces with latest software revision:
1. interface is RS232 master port,
2. interface is RS485 slave port,
3. interface is FO with ST connectors slave port,
4. interface is FO with SMA connectors slave port and
5. interface is power supervision.
16
CMU100 / 2.1.5.6.7.10.0.0.0-2.L
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