Elpro Technologies 905U-E Manuale utente

ELPRO Technologies Pty Ltd, 9/12 Billabong Street, Stafford Q 4053, Australia.

Tel: +61 7 33524533 Fax: +61 7 33524577 Email: [email protected]

Web: www.elprotech.com

User Manual

905U-E Wireless Ethernet Bridge

905U-E Wireless Ethernet Bridge User Manual

Man_905U-E Rev 1.0 Page 2

Thank you for your selection of the 905U-E Wireless Ethernet Bridge. We trust it will

give you many years of valuable service.

ATTENTION!

Incorrect termination of supply wires may

cause internal damage and will void warranty.

To ensure your 905U-E enjoys a long life,

double check ALL your connections with

the user’s manual

before turning the power on.

Caution!

For continued protection against risk of fire, replace the internal module fuse only with the same type

and rating.

CAUTION:

To comply with FCC RF Exposure requirements in section 1.1310 of the FCC Rules, antennas used

with this device must be installed to provide a separation distance of at least 20 cm from all persons

to satisfy RF exposure compliance.

DO NOT:

operate the transmitter when someone is within 20 cm of the antenna

operate the transmitter unless all RF connectors are secure and any open connectors are properly

terminated.

operate the equipment near electrical blasting caps or in an explosive atmosphere

All equipment must be properly grounded for safe operations. All equipment should be serviced only

by a qualified technician.

Important Notices

Page 3 © February 2005

FCC Notice:

This user’s manual is for the ELPRO 905U-E Wireless Ethernet bridge. This device

complies with Part 15.247 of the FCC Rules.

Operation is subject to the following two conditions:

This device may not cause harmful interference and

This device must accept any interference received, including interference that may cause

undesired operation.

This device must be operated as supplied by ELPRO Technologies Pty Ltd. Any changes or

modifications made to the device without the written consent of ELPRO Technologies Pty.

Ltd. May void the user’s authority to operate the device.

This device may only be used with ELPRO antenna / cable combinations as specified

below.

Cable OptionsELPRO

Antenna

Part #

Antenna

Gain No Cable CC10/900 CC20/900

WH900 -2dBi OK N/A N/A

DG900 -2dBi OK N/A N/A

CFD890EL 0dBi OK N/A N/A

SG900EL +5dBi N/A OK OK

SG900-6 +8dBi N/A OK OK

YU6/900 +10dBi N/A NOT

Permitted

End user products that have this device embedded must be supplied with non-standard

antenna connectors, and antennas available from vendors specified by ELPRO

Technologies. Please contact ELPRO Technologies for end user antenna and connector

recommendations.

Notices:

Safety

Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard

for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment

as a result of its actions in Docket 93-62 and OET Bulletin 65 Edition 97-01.

Limited Warranty, Disclaimer and Limitation of Remedies

ELPRO products are warranted to be free from manufacturing defects for a period of 24 months from

905U-E Wireless Ethernet Bridge User Manual

Man_905U-E Rev 1.0 Page 4

the effective date of purchase by the end user. The effective date of purchase is decided solely by

ELPRO Technologies.

This warranty does not extend to:

- failures caused by the operation of the equipment outside the particular product's specification,

- use of the module not in accordance with this User Manual, or

- abuse, misuse, neglect or damage by external causes, or

-repairs, alterations, or modifications undertaken other than by an authorized Service Agent.

ELPRO’s liability under this warranty is limited to the replacement or repair of the product. This

warranty is in lieu of and exclusive of all other warranties. This warranty does not indemnify the

purchaser of products for any consequential claim for damages or loss of operations or profits and

ELPRO is not liable for any consequential damages or loss of operations or profits resulting from the

use of these products. ELPRO is not liable for damages, losses, costs, injury or harm incurred as a

consequence of any representations, warranties or conditions made by ELPRO or its representatives or

by any other party, except as expressed solely in this document.

CONTENTS

2.3 P

OWER

UPPLY

...............................................................................................................6

2.4 E

THERNET

ONNECTIONS

...............................................................................................6

2.4 S

ERIAL

ONNECTIONS

....................................................................................................6

2.4.1 RS232 Serial Port.......................................................................................................... 6

2.4.2 RS485 Serial Port.......................................................................................................... 7

2.4 D

IGITAL

NPUT

UTPUT

..................................................................................................8

CHAPTER THREE.................................................................................... OPERATION 9

3.1 P

OWER

UP AND

ORMAL

PERATION

.............................................................................9

3.2 S

ERIAL AND

ADIO

ATA

...............................................................................................9

3.3 A

DDRESSING

.................................................................................................................10

3.3 B

RIDGE

ODE

..............................................................................................................10

3.3 R

OUTER

ODE

.............................................................................................................10

3.3 A

CCESS

OINT

..............................................................................................................11

3.3 C

LIENT

..........................................................................................................................11

3.3 F

ILTER

..........................................................................................................................11

3.3 R

ADIO

ATES

................................................................................................................12

3.8 R

ADIO

NTERFERENCE

...................................................................................................12

CHAPTER FOUR................................................................................... CONFIGURATION 13

Important Notices

Page 5 © February 2005

4.1 B

EFORE

ONFIGURING

..................................................................................................13

4.2 A

DDRESSING

.................................................................................................................13

4.3 D

EFAULT

ONFIGURATION

...........................................................................................13

4.4 C

ONFIGURATION

ROGRAM

..........................................................................................14

4.6 C

ONFIGURATION

XAMPLES

.........................................................................................25

CHAPTER SIX .................................................................................TROUBLESHOOTING 31

6.1 D

IAGNOSTICS

HART

....................................................................................................31

6.1 C

ONNECTIVITY

..............................................................................................................31

6.1 M

ONITOR

OMMUNICATIONS

.......................................................................................31

6.1 S

TATISTICS

....................................................................................................................32

6.1 PING ............................................................................................................................32

6.1 IPCONFIG ................................................................................................................... 32

6.1 ARP..............................................................................................................................32

6.1 ROUTE........................................................................................................................32

Accessing Configuration inside a module for the first time ................................................14

Modifying an existing configuration.................................................................................... 19

Remote modification of an existing configuration ..............................................................19

Setting a 905U-E to Factory Default Settings...................................................................... 25

Extending a wired network..................................................................................................26

Connecting two separate networks together........................................................................28

905U-E Wireless Ethernet Bridge User Manual

Man_905U-E Rev 1.0 Page 6

2.3 Power Supply

The 905U-E module is powered by a 10 - 30VDC

supply. The power supply should be rated at 1 Amp and

be CSA Certified Class 2.

The negative side of the supply is connected to "COM"

and may be connected to “ground”. The supply negative

is connected to the “GND” terminal internally. The

positive side of the supply must not be connected to earth. The supply may be a floating supply

or negatively grounded.

The power requirements of the 905U-E units is 700mA at 12VDC or 450mA at 24VDC.

2.4 Ethernet Connections

HUB NIC

2.4 Serial Connections

2.4.1 RS232 Serial Port

The serial port is a 9 pin DB9 female and provides for connection to a host device. This

port is independent of the RS485 port. Communication is via standard RS232 signals.

The 905U-E is configured as DCE equipment with the pinout detailed below.

905U-E

10 – 30 +

VDC -

Chapter Two Installation

Page 7 © February 2005

905U-D

DB9

MALE

DTE HOST

DB9

FEMALE

905U-D

DB9

MALE

DCE HOST

DB9

MALE

Hardware handshaking using the CTS/RTS lines is provided. The CTS/RTS lines may be used to

reflect the status of the local unit’s input buffer, or may be configured to reflect the status of

CTS/RTS lines at the remote site. The 905U-D does not support XON/XOFF.

Example cable drawings for connection to a DTE host (a PC) or another DCE host (or modem) are

detailed above.

DB9 Connector Pinout

Pin Name Direction Function

1 DCD Out Data carrier detect –

- on when link is established in controlled mode

- on always in transparent mode

2 RD Out Transmit Data – Serial Data Output

3 TD In Receive Data – Serial Data Input

4 DTR In Data Terminal Ready - DTR can be configured to initiate low power

mode, or to force a link disconnection (“hang up” in controlled mode.

5 SG Signal Ground

6 DSR Out Data Set Ready - always high when unit is powered on.

7 RTS In Request to Send - hardware flow control configurable

8 CTS Out Clear to send - hardware flow control configurable

9 RI Ring indicator - indicates another module is attempting to connect in

controlled mode.

2.4.2 RS485 Serial Port

The RS485 port provides for communication between the 905U-E unit and its host device using a

multi-drop cable. Up to 32 devices may be connected in each multi-drop network.

905U-E Wireless Ethernet Bridge User Manual

Man_905U-E Rev 1.0 Page 8

As the RS485 communication medium is shared, only one of the units on the RS485 cable may

send data at any one time. Thus communication protocols based on the RS-485 standard require

some type of arbitration.

RS485 is a balanced, differential standard but it is recommended that shielded, twisted pair cable

be used to interconnect modules to reduce potential RFI. It is important to maintain the polarity

of the two RS485 wires. An RS485 network should be wired as indicated in the diagram below

and terminated at each end of the network with a 120 ohm resistor. On-board 120 ohm resistors

are provided and may be engaged by operating the single DIP switch in the end plate next to the

RS485 terminals. The DIP switch should be in the “1” or “on” position to connect the resistor. If

the module is not at one end of the RS485 cable, the switch should be off.

HOST

905U-D

HOST

RS485 CONNECTIONS

120

Ω

RS485

SUPPLY

RS232

DIP SWITCH

FOR 120Ω

120

Ω

HOST HOST

905U-E

RS485 CONNECTION USING TERMINATING RESISTOR

ETHERNET

DIO

DEFAULTS DIP SWITCH

2.4 Digital Input/Output

Chapter Three Operation

Chapter Three OPERATION

3.1 Power-up and Normal Operation

When power is initially connected to the 905U-E module, the module will perform internal

diagnostics to check its functions. The following table details the status of the indicating LEDs

on the front panel under normal operating conditions.

LED Indicator Condition Meaning

OK On Normal Operation

Radio RX GREEN flash

RED flash

Radio receiving data

Weak radio signal

Radio TX Flash Radio Transmitting

Serial RX GREEN flash

RED flash

Serial Port Receiving

CTS low

Serial TX GREEN flash Serial Port Transmitting

LINK On On when a radio communications link is

established

LINK Off Communications failure or radio link

not established

Other conditions indicating a fault are described in Chapter Six Troubleshooting.

3.2 Ethernet Data

3.2 Serial Data

The 905U-E module provides a full-duplex RS232 serial port and half-duplex RS485 serial port.

The radio communications is half-duplex - this means that the 905U-E operates at half duplex.

Many applications use full duplex RS232 communications but do not require full duplex - the

905U-E Wireless Ethernet Bridge User Manual

Man_905U-E Rev 1.0 Page 10

protocol used operates at half-duplex and will operate with the 905U-E without problems. If an

application really requires full duplex communications, then the 905U-E should not be used.

3.2 Radio Data

3.3 Addressing

A 905U-E network comprises modules with the same "system" address. Only modules with the

same system address will communicate with each other. This feature allows more than one

system to operate in the same area on the same radio channel.

3.3 Bridge Mode

Joins sections of the same network.

Work at the MAC Layer.

Filter may be used to minimize traffic

Learns where to send data

Initially Broadcast, listen, then limit

3.3 Router Mode

Joins separate networks

Useful for minimizing traffic between networks

Work at the Internet Layer

Knows where to send data based on IP address and routing rules.

905U-E at present only implements only 1 routing rule – default gateway

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