RS232 to Ethernet
Perle’s family of RS232 to Ethernet converters (commonly referred to as Terminal Servers or Device Servers) are the best choice for transmitting serial data across an IP network. Offering flexibility, high performance and advanced RS232 to Ethernet converter technology, Perle IOLANs are ideal for applications and devices that require an efficient way of communicating with serial RS232 devices over an Ethernet network.
A wide selection of choices are available to completely
address your RS232 to Ethernet
A Complete RS232 to Ethernet
Perle IOLAN converters offer a comprehensive set of RS232 serial
to Ethernet solutions for your project
and can match the communication specifications of your
equipment such as the right RS232 connector match,
compatible control signal, flow control, baud and data
Perle RS232 to Ethernet
converters come in various cable connector
types to meet your cabling needs. Typically when the serial
equipment is DTE (Data Terminal Equipment) based, a male
DB9 or DB25 is the most common.
1 – DCD
2 – RD
3 – TD
4 – DTR
5 - GND
6 - DSR
7 - RTS
8 - CTS
9 - RI
1 – Shielded GND
2 – TD
3 – RD
4 – RTS
5 – CTS
7 – Sig GND
8 – DCD
20 – DTR
22 – RI
Because CAT5 is inexpensive and commonly available, some
users prefer to use Ethernet ( straighthrough ) cabling for
their serial equipment connections. Perle IOLAN RS232-Ethernet
models with RJ45 connectors along with the appropriate DB9
or DB25 adapters make this possible. Click here for more
cabling pinout details ».
RS232 flow control
Flow control on the IOLAN RS232 to Ethernet converter is accomplished
through the use of software Xon/Xoff flow control, as well
as hardware flow control with RTS and CTS signaling between
DTE and DCE.
RS232 Control Signaling
As a DTE, the IOLAN presents DTR and RTS signals on its
RS232 port(s). This is straightfoward when communicating
directly with a modem or modem emulating DCE device. However,
when connecting to another DTE device or when using RJ45
CAT5 cabling schemes, a crossover cable or converter is required.
IOLAN cable accessories are available to assist with these
Asynchronous RS232 baud rates typically range from 50K baud
to 230K baud with some devices operating at speeds as high
as 500K baud. While most RS232 to Ethernet converters on the
market offer a limited selection of baud rates for communicating,
the Perle IOLAN supports the full typical baud rate range
and also offers customizable baud rates for those RS232 devices
that require unique baud rates.
The TrueSerial® Difference
TrueSerial® is an innovative approach that delivers the
most authentic RS232 connections across an Ethernet network.
Historically, serial RS232 based software applications and
devices were implemented around a simple direct cable connection,
however as companies begin replacing their direct serial
cable connections with a modern Ethernet infrastructure using
serial RS232 to Ethernet converter products, some will experience
difficulties in making this networked connection behave as
it did when directly connected. This can be attributed to
the lack of raw processing power as well as how the data
is handled across the network by the RS232-Ethernet converters.
- Intelligent packet structuring and forwarding provides
optimal control of how data is sent across an Ethernet network.
- 2ms latency - With the most powerful processor available,
IOLANs achieve the lowest latency in the market.
- Intelligent optimization is performed based on data
- Fast session reconnect in the event of connection
- TruePort virtual COM port redirector included with
all IOLANs, enables legacy serial / COM based applications
to send and receive data COM/TTY based data directly across
Ethernet. No software changes are required.
- A powerful Virtual Modem capability that enables your
dial-up application to connect to remote serial equipment
across an Ethernet network. Perle’s Vmodem feature appears
and behaves like a real modem to dial-up applications. No
software changes required.
- Easy data “tuning” controls including a built-in serial
line trace capability makes configuration of complex and
timing sensitive equipment easier to successfully connect
RS232 to Ethernet.
For more details on Perle’s TrueSerial technology »