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(COMETH-EMBD range excepted)
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COMETH range
Single channel serial link servers over
Ethernet TCP/IP
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This new range of Serial over Ethernet TCP/IP servers is intended to connect to any serial equipments.
The high level of integration and its built-in protection make the COMETH range extremely reliable and the world's smallest module.
COMETH's technical characteristics make it a universal product at a very attractive price.
TELNET support (RFC 2217) and COM port redirector enables the COMETH to take advantage of Windows & Linux applications wrote for PC serial devices.
MODBUS/TCP Protocol support allows to connect any RS232 ou RS485 MODBUS equipments to the Ethernet network.
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Instant & direct serial connection
over Ethernet TCP/IP network |
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Available in dongle & printed circuit format |
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Ultra small & compact size,
COMETH-EMBD "System on a Chip": 20x63 mm, RJ45
included |
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RS232, RS422, RS485, TTL interfaces depending
to models, up to 250 Kb/s of sustained
data rate |
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Direct connection to any DTE
serial device (e.g. PC computer) without adaptation cable |
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Support for TCP Client/Server, DHCP Client, TELNET RFC2217 extension, Telnet Server, COM port re-director (VIP), multipoint or point to point virtual link over UDP modes and MODBUS/TCP Client/Server, MODBUS/RTU & MODBUS/ASCII protocols |
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Scanning I/O for all PLC's running MODBUS/RTU & MODBUS/ASCII |
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Virtual COM port redirection software for Windows 2000, NT & XP (VIP) |
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Easy administration through the
serial link or Ethernet (TELNET) |
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Multiple configuration tool for deployment
in volume |
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Remote firmware download for
easy upgrade operations |
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External power supply or remote-power
supply depending to models |
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15 kV ESD protection (except COMETH-EMBD) |
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Metallic case (except COMETH-EMBD),
CE industrial standards |
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Ethernet / RS 1500 Veff isolation
(except COMETH-EMBD) |
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| COMETH (Dongle
model) |
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RS type: RS232 (SUB D9 Female connector |
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Ethernet: 10 Base T,
RJ45 connector, 10/100 compatible (1) |
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Power supply: External
(jack connector, +4,5VDC to +5,5VDC) and remote power supply
through Sub D pin 9(3), AC power supply included |
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RS / Ethernet isolation: 1500 Veff |
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RS & Ethernet LEDs
signalling |
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| COMETH-LITE (Dongle
model without case) |
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RS type: RS232 (SUB D9 Female connector |
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Ethernet: 10 Base T, RJ45 connector, 10/100 compatible (1) |
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Power supply: External (jack connector, +4,5VDC to +5,5VDC) and remote power supply through Sub D pin 9 (3) |
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RS / Ethernet isolation: 1500 Veff |
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RS & Ethernet LEDs signalling |
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| COMETH-EMBD
(Printed circuit model) |
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High speed 120 Mips processor with
512 Kb of Flash memory for protocols and application storage |
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RS type: serial signals TTL level |
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Signals available on
HD dual in line connectors |
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Ethernet: 10 Base T,
TTL level, 10/100 compatible (1) |
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Power supply: +3,3VDC
or +4,5VDC to +5,5VDC |
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Ultra small size SOC
(System On a Chip): 20x63 mm, RJ45 included |
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Built-in or external
Ethernet RJ45 connector with line transformer |
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Evaluation model available
(COMETH-EMBD-EVAL) |
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Note 1:
The Ethernet interfaces of the COMETH are compatible
with any 10/100 Base TX equipment (network card or SWITCH) featuring self-commutation,
the serial data transfer between the COMETH and the SWITCH is carried
out at 10 Mbps while the transfer of the data between the SWITCH and the
main network is carried out at 100 Mbps.
Contact us for any other Ethernet interfaces like 10/100
Base TX and 10 Base FL.
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Remote COM port mode
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Works with Windows 9x/me/NT/2K/XP, Linux and requires a COM
port redirector driver software on the PC (VIP).
This mode is supported by the COMETH when running the "ServerCom"
firmware and when configured in the TELNET RFC 2217 mode (TELNET
RFC 2217 is a standard).
This mode makes it possible to run any Windows COM applications
without any adaptation (Hyperterminal for example), basically
designed for a local COM port, the Windows communication API
is fully supported. COM port configuration is carried out by
the application itself and not necessarily by the administration
module.
Other redirector softwares relying on the RFC 2217 standard exist for other operating systems.
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TCP socket server mode
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This mode works with any operating system supporting TCP/IP.
It is supported by the COMETH when running the "ServerCom"
firmware and when configured in the RAW mode.
The COMETH is able to answer to TCP connection request on a
configurable TCP port (it is thus a server).
The application which uses the COMETH relies on the SOCKET API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH using the administration module.
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TCP socket client mode
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This mode works with any operating system supporting TCP/IP.
It is supported by the COMETH when running the "TCP Client"
firmware.
The COMETH is able to answer a TCP connection request on a TCP
port to a server, the IP address of the server is programmed
using the administration module.
Connection origin can be established from COMETH power ON of
from the rising edge of the DSR signal.
The application which uses the COMETH relies on the SOCKET API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH using the administration module.
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TELNET mode
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This mode works with any operating system supporting TCP/IP
and which has a TELNET client software, two cases:
Configured TCP port TCP of the Socket TCP Server mode
This mode is supported by the COMETH when running the "ServerCom"
firmware and when configured in the TELNET mode.
It doesn't require any application development on the PC,
TELNET is the network application !
TCP port #23
This mode is supported by all the COMETH's firmwares.
When the COMETH receives a port 23 connection request, it
switches to the administration mode and can thus be configured
(speed, mode ...).
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UDP socket mode
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This mode works with any operating system supporting TCP/IP.
There's no concept of connection/deconnection and thus no server
/ client concept in the UDP mode as in TCP. UDP is a transport
Protocollike TCP but it works faster and is less advanced.
This mode is supported by the COMETH when running the "TUNNEL"
firmware and when configured in RAW mode.
The software which uses the COMETH relies on the Socket API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH using the administration module.
This mode enables to carry out a point-to-point connection between
2 serial ports while relying on IP but without transport of
serial control signals.
Two COMETH can be installed on each side but any other equipment
supporting UDP can also be connected.
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TUNNEL UDP & point-to-point mode
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This mode is supported by the COMETH when running the "TUNNEL"
firmware and when configured in the TUNNELAPP mode.
The software which uses the COMETH relies on the Socket API
and not on the COM API.
COM port configuration (speed, characters, flow control) is
programmed in the COMETH using the administration module.
This mode enables to carry out a point-to-point connection between
2 serial ports while relying on IP but with the transport of
serial control signals.
Only two COMETH can be installed on each side because TUNNELAPP
is not a standard Protocol.
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MODBUS/TCP data gateway mode
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This mode is supported by the COMETH when running the "MODBUS/TCP"
firmware.
In conformity with the MODBUS/TCP Client / Server specifications,
this mode makes it possible to connect any serial MODBUS equipments
(MODBUS/ASCII & MODBUS/RTU) to the Ethernet TCP/IP network.
In this mode, the COMETH settles like a bridge between the Ethernet
network and the serial MODBUS equipments which dramatically
simplifies the extension from traditional MODBUS installation
to a MODBUS/TCP based installation on the Ethernet network.
The COMETH device can work as a slave or master device on both
sides (Ethernet or Serial).
This mode also makes it possible to connect between them and
in a transparent way several traditional serial MODBUS equipments
through the Ethernet network.
COMETH with MODBUS/TCP allows moreover integration within the
same network of serial MODBUS/ASCII & MODBUS/RTU based equipments
and MODBUS/TCP equipments.
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Some illustrations
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References to order:
| COMETH |
Serial RS232 single channel server over Ethernet TCP/IP, dongle model, power supply and Windows COM port redirection software included
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| COMETH-LITE (2)(3) |
Same as COMETH but without case & power
supply |
| COMETH-EMBD (2) |
Serial (TTL) single channel server
over Ethernet TCP/IP, printed circuit model (embedded applications),
without RJ45 connector |
| COMETH-EMBD-ETH (2) |
Serial (TTL) single channel server
over Ethernet TCP/IP, printed circuit model (embedded applications),
with RJ45 connector |
| COMETH-EMBD-EVAL |
Evaluation model of the COMETH-EMBD
with connectors kit, Ethernet RJ45 mounted on the PCB, with COM port
redirector & MODBUS/TCP software |
NATO references to order for military applications:
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PN: COMETH-232
Item: 001 00
Name: Interface
NSN: 5895-14-539-9120 |
Serial RS232 single channel
server over Ethernet TCP/IP, dongle model, power supply and Windows
COM port redirection software included |
(2) Available for quantities only
(3) Add the /T suffix for remote power supply models (external
power supply not included), available for quantities only
Connectors and cables for the COMETH familly:
| COMETH-ACC-RJ45 |
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RJ45 connector with built-in
line isolation transformer (LF1S028) for COMETH-EMBD |
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| COMETH-ACC-C10 |
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10 points high density socket,
Ethernet signals (SFMC-105-L3-S-D) for COMETH-EMBD |
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| COMETH-ACC-C18 |
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18 points high density socket,
serial signals and LEDs (SFMC-109-L3-S-D) for COMETH-EMBD & COMETH-EMBD-ETH |
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