Westermo ED-20 User Manual
PPP Router
INSTALLATION MANUAL
6609-2222
www.westermo.com
ED-20 PPP
©
Westermo Teleindustri AB • 2004 • REV.A
Galvanic
Isolation
Transient
Protection
Balanced
Transmission
CE
Approved
2 6609-2222
Contents
1. Description .................................................................................................................................................................. 3
2. Safety .................................................................................................................................................................................. 4
3. Approvals ....................................................................................................................................................................... 4
3.1 Declaration of Conformity ....................................................................................................................... 5
4. Specification ........................................................................................................................................................ 6–7
5. Maintenance .............................................................................................................................................................. 8
6. Installation .......................................................................................................................................................... 8–15
6.1 Mounting/Removal .......................................................................................................................................... 8
6.2 Connections ................................................................................................................................................ 9–11
6.3 Settings ................................................................................................................................................................. 12
6.3.1 Ethernet Router ................................................................................................................................. 12
6.3.1.1 DIP Switch Settings ................................................................................................... 12–13
6.3.2 Configuration ports ......................................................................................................................... 14
6.3.3 LED indicators .................................................................................................................................... 14
6.4 MAC address .................................................................................................................................................... 15
6.5 Installation of ED-Tool for ED-20 .................................................................................................... 15
7. Functional description .................................................................................................................... 16–17
7.1 Application mode ......................................................................................................................................... 16
7.1.1 About PPP .............................................................................................................................................. 16
7.1.2 Network interfaces .......................................................................................................................... 16
7.1.2.1 Ethernet connection ........................................................................................................... 16
7.1.2.2 PPP connection ....................................................................................................................... 16
7.1.2.3 Brouter function ..................................................................................................................... 17
7.1.2.4 Firewall function ..................................................................................................................... 17
7.1.2.5 Proxy ARP function .............................................................................................................. 17
7.2 Configuration mode .................................................................................................................................. 17
8. Configuration .............................................................................................................................................. 18–31
8.1 Configuration by ED-Tool for ED-20 ............................................................................................. 18
8.1.1 ED-Tool for ED-20 commands ................................................................................................ 19
8.1.1.1 General commands ............................................................................................................. 19
8.1.1.2 Serial Interface – Channel 1 specific commands .......................................... 19
8.1.1.3 Modem Settings ............................................................................................................ 20–21
8.1.1.4 Network Settings .................................................................................................................. 22
8.1.1.5 Brouter Settings ..................................................................................................................... 23
8.1.1.6 Firewall Settings ..................................................................................................................... 24
8.2 Configurable parameters .............................................................................................................. 25–31
8.2.1 Serial interface .................................................................................................................................... 25
8.2.2 Modem settings ........................................................................................................................ 25–29
8.2.3 Network Settings .................................................................................................................... 29–30
8.2.4 Brouter settings ........................................................................................................................ 30–31
8.2.5 Firewall Settings ................................................................................................................................ 31
9. Application examples ....................................................................................................................... 32–35
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1. Description
The ED-20 is an industrialised DIN Rail mounted, serial to Ethernet Router. The device
will allow access to a remote Ethernet network via a Westermo communication product.
The device is easy to set-up using the ED-Tool for ED-20, via TELNET or serial connection.
Standard PPP dial-up networking tools can be used from Microsoft Windows 9x, ME, NT,
2000 or XP. Any other platform supporting the PPP protocol could equally be used.
Passwords are provided to increase the remote site security. Once connected to the
remote network all TCP/IP, FTP,TELNET and UDP protocol types can be used.
Connection to the ED-20 is via 10Base-T on the Ethernet and RS-232 on the serial side.
The serial port supports speeds up to 115 kbit/s.
Total galvanic isolation ensures that the data communication will not be effected by
ground loops or transfer electrical noise between communications ports.The high EMC
specification, like all other Westermo production ensures reliability of operation in the
harshest of site conditions.
ED-20
TD-33
TD-35
PSTN
TCP/IP
Ethernet
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2. Safety
General:
Before using this unit, read this manual completely and gather all information on
the unit. Make sure that you understand it fully. Check that your application does
not exceed the safe operating specifications for this unit.
Before installation, maintenance or modification work:
Prevent damage to internal electronics from electrostatic discharges (ESD)
by discharging your body to a grounding point (e.g. use of wrist strap).
Prevent access to hazardous voltages by disconnecting the unit from AC/DC
mains supply and all other electrical connections.
Installation:
This unit should only be installed by qualified personnel.
This unit should only be installed in a “restricted access area”, for example
a lockable cabinet where access is restricted to service personnel only.
This unit is intended for permanent connection to the AC/DC mains supply.
The power supply wiring must be sufficiently fused, and if necessary it must be
possible to disconnect manually from the AC/DC mains supply. Ensure compliance
to national installation regulations.
Units with the rated voltage exceeding 42.4 V peak or 60 VDC, are defined as
class I equipment with a protective earthing conductor terminal.
Units with the rated voltage up to 42.4 V peak or 60 VDC, are defined as class III
equipment and shall be separated from hazardous voltage by double or reinforced
insulation.
This unit uses convection cooling.To avoid obstructing the air flow around the
unit, follow the spacing recommendations (see Installation section).
3. Approvals
Conformity with the Directive 89/339/EEC (Electromagnetic compatibility)
has been assessed by application of standards EN 61000-6-2 (industrial immunity)
and EN 61000-6-4 (industrial emission).
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3.1 Declaration of Conformity
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4. Specification
ED-20
Rated voltage 12 – 48 VDC (polarity independent)
Operating voltage 9.6 – 57.6 VDC
Rated current 300 mA @ 12 VDC
Rated frequency DC
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm
2
(AWG 24-12)
Power interface
Ethernet TX Interface 10Base-T
Electrical specification IEEE std 802.3. 2000 edition
Data rate 10 Mbit
Duplex Half
Connection RJ-45
Circuit type TNV-1
Transmission range 100 m
RS-232 Interface 1 (CH-1)
Electrical specification RS-232 V.24
Data rate 1200 bit/s – 115.2 kbit/s
Connection 9-pol. D-sub female DCE
Circuit type SELV
RS-232 Interface 2 (CH-2)
Electrical specification RS-232 V.24
Data rate 19.2 kbit/s
Connection 9-pol. D-sub female DCE
Circuit type SELV
RS-422 Interface (CH-1)
Electrical specification RS-422
Data rate 1200 bit/s – 115.2 kbit/s
Connection Detachable screw terminal
Connector size 0.2 mm
2
– 2.5 mm2(AWG 24-12)
Circuit type TNV-1
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Mechanical
Dimension (W x H x D) 55 x 100 x 128 mm
Weight <0.35 kg
Mounting DIN-rail
Degree of protection IP 20 (IEC 529)
Isolation between interfaces
Power to all other* 4.2 kV DC, 3 kV RMS @ 50 Hz and 60s duration
TX signal Interface to all other 2.1 kV DC, 1.5 kV RMS @ 50 Hz and 60s duration
TX shield Interface to all other 1.5 kV DC, 1 kV RMS @ 50 Hz and 60 s duration
Environmental
Temperature, operating +5 to +50°C
Temperature, storage
and transportation –25 to +70°C
Relative humidity, operating 5 to 95% (non-condensing)
Relative humidity,
storage and transportation 5 to 95% (condensation allowed outside packaging)
Configuration
Configuration of the Router is made with DIP-switches and with ED-tool for ED-20
locally via RS-232 port or remotly via Ethernet.
* Power to network interface, 2.1 kV DC, 1.5 kV RMS @ 50 Hz and 60 s duration.
8 6609-2222
5. Maintenance
No maintenance is required, as long as the unit is used as intended within the specified
conditions.
6. Installation
6.1 Mounting / Removal
Before mounting or removing the unit:
Prevent damage to internal electronics from electrostatic discharges (ESD) by discharging your body to a
grounding point (e.g. use of wrist strap).
Prevent access to hazardous voltages by disconnecting
the unit from AC/DC mains supply and all other electrical connections.
Mounting
This unit should be mounted on 35 mm DIN-rail which is
horizontally mounted on a wall or cabinet backplate.
This unit uses convection cooling.To avoid obstructing the
airflow around the unit, use the following spacing rules.
Recommended spacing 25 mm (1.0 inch) above/below and
10 mm (0.4 inches) left/right the unit.
Snap on mounting, see figure
Removal
Press down the black support at the back of the unit
using a screwdriver, see figure.
10 mm *
(0.4 inches)
25 mm
25 mm
* Spacing (left/right) recommended
for full operating temperature range
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K
C
I
L
C
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6.2 Connections
Power
LED indicators
LED indicators
Channel 1:
RS-232 connection
Channel 1:
RS-422 connection
Channel 2:
RS-232 connection
Ethernet 10Base-T
connection
8
7
6
5
4
3
2
1
Ethernet 10Base-T Connection (RJ-45 connector)
Media Dependent Interface (MDI)
Contact Signal Name Direction** Description
1 TD+ Out Transmitted Data
2 TD– Out Transmitted Data
3 RD+ In Received Data
4NC
5NC
6 RD– In Received Data
7NC
8NC
** Direction relative ED-20
NC Not connected
CAT 5 cable is recomended.
Unshielded (UTP) or shielded (STP) cables might be used.
Pin Signal Name*
Direction** Description
Number Description V.24 RS-232C
1 DCD 109 CF – Data Carrier Detect, NC
2 RD 104 BB Out Received Data
3 TD 103 BA In Transmitted Data
4 DTR 108.2 CD – Data Terminal Ready, NC
5 SG 102 AB In/Out Signal Ground
6 DSR 107 CC – Data Set Ready, NC
7 RTS 105 CA In Request to Send, NU
8 CTS 106 CB Out Clear to Send, NU
9 RI 125 CE – Ring Indicator, NC
Pin Signal Name*
Direction** Description
Number Description V.24 RS-232C
1 DCD 109 CF Out Data Carrier Detect
2 RD 104 BB Out Received Data
3 TD 103 BA In Transmitted Data
4 DTR 108.2 CD In Data Terminal Ready
5 SG 102 AB In/Out Signal Ground
6 DSR 107 CC Out Data Set Ready
7 RTS 105 CA In Request to Send
8 CTS 106 CB Out Clear to Send
9 RI 125 CE – Ring Indicator, NC
CH1: RS-422 Connections (Upper left screw terminal)
* Numbered right to left (front view). ** Direction relative ED-20.
Twisted pair cable is recommended
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CH1: RS-232 Connections, DCE
* Functionality might differ from standard ** Direction relative ED-20
NC Not connected
CH2: RS-232 Connections, DCE
* Functionality might differ from standard ** Direction relative ED-20
NC Not connected NU Not used
1
2
3
4
5
6
7
8
9
5
4
3
2
1
9
8
7
6
543
2
1
Terminal
Signal Name*
Number
Marked on According
ED-20 to Standard
Direction** Description
1 SG – – Not connected
2 T– B Out RS-422 4-wire Transmitter
3 T+ A Out RS-422 4-wire Transmitter
4 R– B’ In RS-422 4-wire Receiver
5 R+ A’ In RS-422 4-wire Receiver
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ED-20
(ED-20)
=Termination
4-wire termination
R+
R–
T+
T–
R– R+ T– T+
RS-422 general advice
4-wire
Twisted pair cable is recommended
Termination recommendations
The RS-422 line must be terminated. The receiver on each side shall be terminated.
RS-422 connection pins can be differently named.For some brands the T+ corresponds
to A, but other brands might use some other naming convention.
If a unit does not work it can help to swap A and B.
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