Moore Industries WLM Manual de usuario
WLM
Wireless Link Module
April 2016
288-787-01 B
WLM
Wireless Link Module
Ethernet 2.4-2.4835GHz
Ethernet
2.4-2.4835GHz
2 The Interface Solution Experts
WLM
The Interface Solution Experts 3
WLM
Table of Contents Page
Introduction ......................................................................................................................................... 4
Quick Start ......................................................................................................................................... 5
Modem Configuration ......................................................................................................................... 6
Main Menu Option (0): Set Operation Mode........................................................................................8
Main Menu Option (1): Set Baud Rate .............................................................................................. 10
Main Menu Option (2): Edit Call Book ............................................................................................... 10
Main Menu Option (3): Edit Radio Transmission Characteristics ..................................................... 12
Main Menu Option (4): Show Rado Statistics ................................................................................... 16
Main Menu Option (5): Edit Multi-Point Parameters .......................................................................... 18
Main Menu Option (8): Password ..................................................................................................... 21
Modem Location ............................................................................................................................... 22
Using an External Antenna ............................................................................................................... 22
Modem Front Panel LED’s ............................................................................................................... 23
Sample Data Communication Links.................................................................................................24
Technical Specifications ................................................................................................................... 26
Troubleshooting ................................................................................................................................ 26
Appendix A ........................................................................................................................................ 28
4 The Interface Solution Experts
WLM
Introduction
TheWLMtransceivermodem isa highperformance, wirelessradio modemdesigned forheavy-duty industrialdata
communicationsin the2.4 to 2.4835GHz license-free band.It employsadvanced spreadspectrum frequency
hoppingand errordetection technologyto achieve very reliable, noise and interference immune operation.AhighRF
datarateof 188kbps and superior sensitivity provideultra reliable dataintegrity.The WLMhas a ratedrange of up to
10 miles (15 km) in optimal conditions with line-of-sight and an omni directional antenna. This can also be extended
furtherwithrepeaters orhigher gainantenna.
TheWLM can be operated ina number ofdifferent modes to satisfy abroad range ofcommunications requirements.
Itcan be configured for point-to-pointor multi-point operationwith an unlimitednumber of remote sites ona single
masterdepending on datathroughput requirements. Repeaters can be used in the system to extendrange and
eliminate dead RF zones that are blocked by obstructions.
An external antenna can be used with up to two hundred feet of coax. Consult the factory if cable lengths longer
thantwo hundredfeet are required. Thisprovides a boost in signalstrength and decreases induced noiselevels.
With an external antenna, radio modems can be located inside buildings or metallic enclosures.
TheWLM will operatein virtuallyany environmentwhere Ethernetcommunications are required.The transceiver’s
Ethernet port is a standard 10Base-T connector with either a straight through or crossed selection.
TheUser Guide covers the operatingmodes and configurationsthat are availableto users of the WLM.It also
providesthe userwith technicalinformation and specifications.
In most applications, the WLM comes pre-configured for the application in which it is going to be used. In most
casesno other configuration is required.If you are unsure ifthe modem needs further configuration,please contact
MooreIndustries-International,Inc.
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WLM
Quick Start
The WLM comes pre-configured for your application (unless otherwise requested). In most cases, configuration
settings are not required.
Although each modem is tested before shipment, it is recommended that a bench test be done before the modem is
installed in its application.
In all applications, there is a master modem and one or more remotes. Some applications may also have one or
more repeaters. This “Quick Start” will assume that there is a repeater in the system. If there is not, ignore the parts
that talk about repeaters, as the remote modems should operate the same with or without repeaters.
Locate the modem labeled “Master” and connect its power supply to an appropriate 120VAC power source, then
connect it to the modem. The “P” LED should come on and stay on
Note: on all modems, the “C” LED will come on for the first few seconds after power up.
Next, locate the modem(s) labeled “Repeater” and connect to power. The LED’s “P” and “C” should come on and
stay on. Now locate the modem(s) labeled “Remote” and connect to power. The LED’s “P” and “C” should come on
and stay on. The modems are now ready to carry Ethernet data.
Connect the “Master” and “Remote” (or “Repeater/Remote” if your network has one) to the Ethernet equipment that
has been pre-tested for operation.
Note: The WLM will not support “Peer to Peer” communications. The equipment that is attached to the
WLM must be capable of operating in a “Master (host) to Remote” network.
It is recommended that a “Ping” test be done at this point. This can be done in either direction, but remember that
only a “Master to Remote” or “Remote to Master” connection can be established through the modems. Also note
that because of the MAC filtering done by the modems, if you take a piece of Ethernet equipment on one side of the
WLM network and move it to the other side of said network, you must power down both the “Master” and the effected
“Remote” in order to re-establish connectivity through the modems. If powering down the modem is not practical to
the application, the modems will rebuild the MAC filter table in approximately six minutes and communications
should return. Once a successful “Ping” test has been done, the modems are ready for communication. If the “Ping”
test was not successful, please refer to the trouble shooting section of this manual or contact Moore Industries-
International, Inc. tech support for assistance.
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WLM
Configuration
In most cases, the WLM comes pre-configured from the factory. However, it may sometimes be necessary to
change the configuration. Most parameters are changed in the radio section of the modem although there are a few
settings that are set using switches. If you are not sure if you need to change the configuration of the WLM, you
probably don’t. Please contact Moore Industries-International, Inc. for further information if you are unsure about your
configuration.
Switch Settings
Access to the switches is via removal of the left side (LAN side) end plate.
Note: Leave switch positions 4, 5 and 6 at factory setting of off unless otherwise directed by Moore
Industries-International, Inc. Changing these switches requires a radio parameters change.
Mac Filtering Function
All devices capable of generating Ethernet traffic have a MAC (Medium Access Control) address. This address is
used in the communications of Ethernet data.
The WLM is factory set to perform MAC level filtering. This means that it learns all the MAC addresses from the LAN
it is connected to, and only forwards data packets across the radio links which are destined for addresses located
across the radio link.
The MAC address table can store up to 10,000 addresses. Each entry to the table has a lifetime of six minutes after
which the address is deleted. This dynamic table building allows for the possibility of stations being removed from
the LAN. The net result of this filtering functionality is the reduction of unnecessary network traffic across the radio
link.
Any device that does not communicate on the network within a six minute time out period will be dropped from the
radio’s MAC table list. If frequent changes in the LAN cabling are done, cycle the DC power or press the reset button
on the front of the modem.
Note: Many Ethernet networks have data packets that are not covered by the MAC filter function (broadcast
packets for example). These packets can occupy tremendous amount of the network’s bandwidth and
overwhelm the WLM section of the network. If the WLM’s are going to be installed where they are linked to
an open network (on office network, etc…), a properly configured router or switch should be installed to
protect the modems from excessive data traffic. If you are unsure about your network, please consult with
your network administrator.
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WLM
Radio Parameter Configuration
The WLM allows you to set several parameters to suit your particular application. All adjustments are done through
the WLM setup program, a user interface that eliminates the need for setup diskettes or custom software.
To access the configuration menu, connect the radio modem’s configuration port to any terminal program with port
settings of 19.2Kbaud, 8 data bits, no parity and one stop bit. With the modem connected to the PC running the
terminal program, press the Configure button. While any terminal program will work, examples for this manual were
generated using the Microsoft Windows 2000 application “HyperTerminal.”
Note: When using HyperTerminal, set Handshaking to none and use a standard straight through cable. If
you are using something other than Hyper Terminal, it may be necessary to use a cable that has pins 4 and
6 connected together on the modem side of the cable. Contact Moore Industries-International, Inc. for further
information.
Table 1: Terminal Settings
When the setup program is invoked the RF “IN” LED on the WLM front panel will flash once when the Configure
button is pressed and the RF “Link” LED will remain on for the entire time the radio modem is in setup mode.
The main menu provides the radio modem’s unique call book number and the set of choices for editing the
operational parameters and viewing the performance data.
Figure 1: Main Menu
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8 The Interface Solution Experts
WLM
Main Menu Option (0): Set Operation Mode
When item (0) is selected, the Operation Mode Menu appears as shown in figure 2. The Operation Mode option is
used to designate the method in which the particular WLM will be used. The WLM operates in a master to remote
configuration; therefore, any radio modems that are intended to operate together must be set up as such. In a point-
to-point setup, either the master or remote may be used on either end of the communications link. One
consideration when setting up the radio modems is that a number of parameters are controlled by the settings in the
master; therefore, you may wish to deploy the master on the communications end where you will have easier
access to the radio modem.
Figure 2: Mode Menu
Shown below are example settings. Please refer to supplied configuration sheets for your modem’s configuration.
(0) Point-to-point Master
The WLM operates in a master/remote configuration. When designated as a master in point-to-point mode, the
radio modem will call any or all remotes it is instructed to call in the call book. The master determines the
settings used for all Radio Transmission Characteristics (except power), regardless of the settings in the
remotes and/or repeaters.
(1) Point-to-Point Remote
When set up as a point-to-point remote, an WLM will communicate with any master in its call book, either
directly or through one or two repeaters. When functioning as a remote, the Entry to Call feature in the radio
modem’s call book (Figure 3) is not operational. The remote will communicate with any master on the list that
calls.
(2) Point-to-Multi-Point Master
The WLM may be set to run in multi-point mode, which allows one master to simultaneously be in
communication with numerous remotes. A point-to-multi-point master will communicate only with other radio
modems designated as point-to-multi-point remotes or point-to-multi-point repeaters.
(3) Point-to-Multi-Point Remote
Setting (3) allows the radio modem to operate as a remote in a multi-point network.
Please refer to the section entitled multi-point operation, for more information on running a multi-point network.
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WLM
(4) Point-to-Point Remote/Repeater
Option 4 allows you to designate the radio modem to act as either a remote or a repeater, depending upon the
instructions received from the master for the specific communications session. When a radio modem is placed
in an ideal location, this setting offers the flexibility of using that radio modem as an end point in the
communications link (remote) or to extend the link to a further point (repeater). These functions are not, however,
available simultaneously (the radio modem cannot act as both a remote and a repeater at the same time).
Note: Configured as a repeater, a radio modem has no security features as explained below. When a radio
modem is designated as a Point-to-Point Remote/Repeater, it will allow any master to use it as a repeater.
(5) Point-to-Point Repeater
WLM radio modems allow the use of up to two repeaters in a communications link, significantly extending the
operating range. When designated as a repeater, a radio modem behaves as a pass-through link. All settings for
the call book, baud rates, and radio transmission characteristics are disabled. A repeater will connect with any
master that calls it (the repeater must still be set up in the master’s call book).
The use of one repeater in a communications link will reduce the top data throughput available when compared
to a direct master to remote link (generally on the order of 50%). The throughput does not decrease further if two
repeaters are used.
(6) Point-to-Point Remote/Master Switchable
Mode 6 is not applicable to the WLM radio modems.
(7) Point-to-Multi-Point Repeater
Setting (7) allows the radio modem to operate as a repeater in a multi-point network.
Please refer to the section entitled, multi-point operation, for more information on running a multi-point network.
(F) Ethernet options
This selection is factory set and should not be changed.
10 The Interface Solution Experts
WLM
Main Menu Option (1): Set Baud Rate
The baud rate setting affects the interface between the radio and Ethernet sections of the modem. All of the settings
are factory set and should not be changed.
Main Menu Option (2): Edit Call Book
The Call Book is an innovative feature in the WLM that offers both security and flexibility in use. The Call Book
accomplishes this by allowing the user to determine with which other WLMs a given radio modem will communicate,
based on the call book numbers for both the master and remote. The radio modem’s call book number is encoded in
the microprocessor and identified on a label on the modem. The instructions provided in this section are for point-to-
point mode only. Use of the Call Book for multi-point systems is explained later in this chapter. For two WLM radio
modems to communicate in point-to-point mode, three events must occur:
1. The call book number for the master must be listed in the remote’s Call Book.
2. The call book number for the remote must be listed in the master’s Call Book.
3. The master must be programmed to call the remote.
As shown in figure 3, the Call Book allows users to set up a list of up to 10 WLMs to communicate with, designate
up to 2 repeaters to be used in communicating with a given radio modem, and tell the master which remote to call.
To direct the master to call a remote, the Remote must be in the Call Book Menu. A specific remote may be called
by entering (C) at the prompt, followed by the menu number corresponding to that remote. To call any available
remote in the list, the user should enter C and then A (for All).
Note: To call a remote through one or two repeaters, you must call that remote directly (as opposed to
using the Call All option). When Call All is selected, the master is not able to connect with any remotes
through repeaters. This is because the master calls every remote in the list when instructed to call all and
will connect with the first remote to respond. When calling through a repeater, the master must first call that
repeater and establish a communications link with it prior to making contact with the remote.
Figure 3: Call Book Menu
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