GE MDS SD Series User manual

05-4847A01, Rev. D MDS SD Series Setup Guide 1
MDS SD Series
Setup Guide
The MDS SD transceiver (Figure 1) is a software-configurable,
industrial radio for use in wireless telemetry applications. Models
offered at the time of printing include: MDS SD2 (215-235 MHz),
SD4 (350-512 MHz), and SD9 (928-960 MHz). The term SD is
used for information common to all models of the radio.
The radio supports both polled and report-by-exception data net-
works, and interfaces with a varietyofdatacontrol equipment such
as remote terminal units (RTUs), programmable logic controllers
(PLCs), flow computers, and similar devices. Data interface con-
nections support both Ethernet and serial (RS-232/485) protocols.
Invisibleplaceholder
Figure 1. MDS SD Data Transceiver
1.1 About This Guide
This guide covers all SD transceivers except those operating in
x710 mode. A more detailed Technical Manual is also available
(05-4846A01). Before installing this product, refer to the Technical
Manual for important warnings, cautions, and notes. SD manuals
areavailableinprintedorelectronic form.All manualsareavailable
free of charge at www.gemds.com.Invisibleplaceholder
1.1.1 x710 Mode—Different Manuals Required
The radio may be configured to emulate a corresponding MDS
x710 transceiver. For x710 mode information, consult these man-
uals instead:
•Setup Guide (05-4669A01)
•Technical Manual (05-4670A01)
There are three main requirements for installing the transceiver:
• Adequate and stable primary power
• An efficient and properly installed antenna system
• Correct interface connections between the transceiver and
the data equipment.
Figure 2 shows a typical installation of the radio.
NOTE: Retrofit Kits are available to ease installation at former
MDS x710 digital and analog sites. Consult your factory
representative for ordering details.
2.1 Installation Steps
In most cases, the steps given here are sufficient to install the
transceiver.Refer totheTechnicalManualforadditional details,as
required.
1. Mount the transceiver. Attach the supplied brackets to the
bottom of the transceiver case (if not already attached), using
the four 6-32 x 1/4 inch (6 mm) screws. Mounting bracket
dimensions are shown in Figure 3. If DIN Rail mounting
brackets are to be used, consult the Technical Manual for
instructions.
NOTE: To prevent moisture from entering the radio, do not mount
the case with the cable connectors pointing up. Also,
dress all cables to prevent moisture from running along
the cables and into the radio.
Figure 2. Typical Installation (Remote Site Shown)
Figure 3. Mounting Bracket Dimensions
2. Install the antenna and feedline. The antenna must be
designed to operate in the radio’s frequency band, and be
mounted in a location providing a clear path to associated sta-
tion(s). At Remote sites, aim directional antennas toward the
Master Station. Low loss coaxial feedline should be used and
it should be kept as short as possible.
3. Connect the data equipment. Connection may be made
using Ethernet signaling, Serial protocols (RS-232/RS-485),
or both.
• IfEthernet is to be used, connect your data equipment to the
front panel Ethernet port next to the PWR connector.
1.0 INTRODUCTION
2.0 INSTALLATION
ANTENNA
CONNECTOR (TNC)
SERIAL DATA
CONNECTORS (DB-9)
DC INPUT
POWER
LED INDICATOR
PANEL
ETHERNET
CONNECTOR (RJ-45)
POWER SUPPLY
10.5–30 VDC @ 2.5A
Negative Ground Only
TRANSCEIVER
LOW-LOSS FEEDLINE
ANTENNA SYSTEM
ETHERNET
SERIAL
Master Stations typically use
omni-directional antenna
DATA TELEMETRY DEVICE
OR HOST COMPUTER
OR:
6.675˝(16.95 cm)
2.75˝(7 cm)

2 MDS SD Series Setup Guide 05-4847A01, Rev. D
• If serial is to be used, connect your data equipment to the
COM1 or COM2 port on the front panel. (Typically, COM2 is
used for connecting data equipment and COM1 is used for
serial management of the radio. Other assignments are pos-
sible. (Refer to the Technical Manual for details.) In all
cases, the radio is hardwired as a DCE device. A
straight-thru cable may be used in most applications.
NOTE: Do not connect the Ethernet port to a LAN with high traffic
levels. Excessive traffic will overload the port and
Ethernet communications will be temporarily disabled.
4. Connect primary power. Input power must be 10.0 to 30 Vdc
and capable of providing at least 2.5 Amperes. A power con-
nector with screw-terminals is provided (see Figure 4). Strip
the wire leads to 6 mm (1/4 inch) and insert them into the wire
ports. Be sure to observe proper polarity as shown below.
Tighten the binding screws securely.
NOTE: Some early models supported 10.5 to 16 Vdc power, not
10.0 to 30 Vdc. Always check the labeling above the
Power connector to verify the proper range for your unit.
Figure 4. DC Power Connector
CAUTION:The unit is designed for use with negative-ground
systems only. The power supply should be equipped with
overload protection (NEC Class 2 rating), to protect
against a short circuit between its output terminals and
the radio’s power connector.
2.1.1 Configuration Settings
The SD Radio contains a Setup WIzard for fast, easy configuration
ofkey settings.Onanewradioshippedfromthefactory,thewizard
starts as soon as you are connected to the radio. Follow the steps
below to connect and use the wizard.
1. Connect an Ethernet cable (straight-thru or crossover)
between the radio and a PC as shown in Figure 5.
Figure 5. Setup for PC Configuration
2. Configure your PC network settings to an IP address on the
same subnet as the radio. The default IP address on a new
factory shipped radio is 192.168.1.1. The default subnet mask
is 255.255.255.0.
3. Enter the radio’s IP address in a web browser window, just as
you would enter a website address. When the login screen
appears (Figure 6), enter the User Name and Password for
the radio. The default entries for a new radio are both admin.
Click OK.
Invisibleplaceholder
Figure 6. Login Screen
4. The Basic Setup Wizard (Figure 7) begins automatically upon
connection to a new factory shipped radio. It displays a series
of screens with key selections as follows:
• TX/RX Frequencies (entries must match station license)
• RF Power Output
• Operating Mode
• Modem Type
• Serial Port Configuration
• Ethernet Bridging
• Encryption Setting
• AP or Remote Service
Continue through each wizard screen until all selections have
been made. (You may back up to previous screens if required,
to review or change settings.) Contact your network adminis-
trator if you are unsure about a setting.
Invisibleplaceholder
Figure 7. Basic Setup Wizard
5. At the conclusion of the wizard, click Done. Configuration is
now complete for this radio. Run Remote Management Wiz-
ard, if required, for other installed radios in the network.
A summary of all SD settings (Figure 8) may be viewed, by
clicking Overview. The Overview screen may be formatted for
printing, by clicking Printer friendly configuration at the bot-
tom of the screen.
6. When finished, log out of the Device Manager by clicking
Logout in the upper right hand side of the screen.
Figure 8. Overview Summary Screen
NOTE: The radio may also be programmed using serial or Telnet
management methods. Refer to the Technical Manual for
details.
PC Running Web Browser
Transceiver
RJ-45 to Ethernet Port

05-4847A01, Rev. D MDS SD Series Setup Guide 3
2.2 Initial Checkout
In-service operation of the transceiver is completely automatic.
The only operator actions required are to apply DC power and
observe the LEDS for proper indications. Table 1 summarizes the
radio’s LED functions.
2.2.1 LED Functions
NOTE: LED labeling may vary on early units. LED position and
functionality remains as described below.
Figure 9. LED Status Indicators
Table 1: Description of LED Status Indicators
NOTE: In addition to the LEDs above, the Ethernet connector
also has two embedded LEDs. A flashing green indicates
Ethernet data activity. A yellow indicates 100 Mbps oper-
ation.
2.2.2 Antenna SWR Check
The antenna system’s standing wave ratio (SWR) should be
checked on new installations using a wattmeter suited to the fre-
quency of operation. High SWR (above 2:1) may indicate an
antenna or feedline problem.
2.2.3 RSSI Check (for Remotes)
Using the Maintenance & Status>>Performance screen, check
the received signal strength indication (RSSI). The radio must be
receiving a signal from the associated Master Station (LINK LED
on or blinking). In general, signal levels stronger than –80 dBm will
provide reliable communication and allow for a degree of “fade
margin.”
Optimize the RSSI at Remotes by slowly adjusting the direction of
thestationantenna.Watch theRSSIindication forseveralseconds
after making each adjustment, so that the RSSI accurately reflects
the new heading. With RSSI readings, the less negative the
number, the stronger the incoming signal.
NOTE: The radio’s RSSI facility limits the maximum displayed
signal strength to -60 dBm. A receive signal attenuator is
available in the Configuration>>Radio>>Advanced
Settings screen.
All radios in the network must meet the basic requirements listed
below for proper operation. Check these items first when trouble-
shooting a system problem:
• Adequate and stable primary power
• Secure connections (RF, data and power)
• A clear transmission path between Master and each Remote
• An efficient and properly aligned antenna system providing
adequate received signal strength.
• Proper programming of radio settings
• The correct interface between the transceiver and the con-
nected data equipment (correct cable wiring, proper data
format, timing, etc.)
3.1 LEDs
The radio’s LED indicator panel provides useful information when
troubleshooting a system problem. Refer to Table 1 for LED indi-
cations.
3.2 Event Codes
When an alarm condition exists, the transceiver creates a mes-
sage readable on the Maintenance & Status Screen. From this
screen, select Event Log to view the current alarm(s). Consult the
Technical Manual for details.
3.2.1 Types of Alarms
Minor Alarms—These alarms report conditions that, under most
circumstanceswill not prevent transceiveroperation.Thisincludes
out-of-tolerance conditions, baud rate mismatches, etc. The cause
should be investigated and corrected to prevent system failure.
Major Alarms—These alarms report serious conditions that gen-
erally indicate a hardware failure, or other abnormal condition that
will prevent (or seriously hamper) further operation of the trans-
ceiver. Major alarms may require factory repair. Contact your fac-
tory representative for assistance.
3.3 Built-In Spectrum Analyzer/Graph
A Spectrum Analyzer/Graph is available to display other radio sig-
nals near the SD radio’s operating frequencies. This can be a
helpful tool in cases of interference. The graph may be accessed
from the Maintenance & Status>>Radio Test screen.
To use the graph, simply enter the frequency you wish to use as
the center point of the graph (Center Frequency), and enter the
frequency range you wish to cover (Span Frequency). Select
Show Spectrum to display the results.
The display creates a received signal strength indication (in dBm)
vs. frequency plot for signals near the center frequency (see
Figure 10). Invisibleplaceholder
Figure 10. Spectrum Analyzer/Graph (Portion of Display)
LED Name Description
PWR • Continuous—Power applied, no problems detected.
• Rapid flash (5 times-per-second)—Alarm
indication.
LAN • Flashing—Ethernet data activity is detected.
• Off—Ethernet signals not detected, or excessive
traffic is present.
DATA1/DATA2 The DATA LEDs show data activity on the DB-9
serial payload port(s).
LINK When lit, indicates that a communication link exists
with the another station.
3.0 TROUBLESHOOTING

GE MDS, LLC
175 Science Parkway
Rochester, NY 14620
MDS SD Series Setup Guide General Business: [phone]
05-4847A01, Rev. D FAX: [phone]
July 2010 (Copyright 2010, GE MDS, LLC) Web: www.gemds.com
The COM1/COM2 connectors (Figure 11) are typically used to
connect an external DTE telemetry device to the radio, supporting
the RS-232 or RS-485 (balanced) format, depending on how the
radio is configured. The radio supports data rates of 300, 1200,
2400, 4800, 9600, 19200, 38400, 57600, and 115200 bps (asyn-
chronous data only) on these connectors.
These connectors mate with a standard DB-9 plug available from
many electronics parts distributors.
4.0.1 Pin Descriptions—RS-232 Mode
Table 2providespindescriptionsfor theconnectorwhenoperating
in RS-232 mode. For RS-422/485, refer to the Technical Manual.
4.0 COM1/COM2 REFERENCE Figure 11.COM1/COM2 Connector
(DB-9F)
As viewed from outside the radio
5
96
1
Table 2: COM1/COM2 Pin Descriptions—RS-232
Pin
Number Input/ Output Pin Description
1OUTDCD(DataCarrier Detect/Link)—A low on
this pin indicates signal received.
2OUTRXD (Received Data)—This pin supplies
received data to the connected device.
3INTXD(TransmittedData)—Thispinaccepts
TX data from the connected device.
4INSleep Mode Input—Grounding this pin
turns off most circuits in a remote radio.
This allows for greatly reduced power
consumption, yet preserves the radio’s
ability to be quickly brought on line.
5--Signal Ground—This pin connects to
ground (negative supply potential) on
chassis.
6OUTAlarm Output (DSR)—An RS-232
high/space (+5.0 Vdc) on this pin indicates
an alarm condition. An RS-232 low/mark
(–5.0 Vdc) indicates normal operation. This
pin may be used as an alarm output.
7 IN Reserved.
8 OUT Reserved.
9 -- User I/O for special applications; not
normally used.
NOTE: The radio is hard-wired as a DCE device.