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EL705 OEM Series ™ Board Version Enclosed Version 220 MHz and 450 MHz Data Transceivers MDS 05-3624A01, Rev. B JANUARY 2001...
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QUICK START GUIDE Below are the basic steps for installing the transceiver. Detailed instructions are given in “Installation Steps” on page 6 of this guide. Mount the transceiver (see for mounting dimensions) Figure 6 Figure 7 Install and connect the antenna system to the radio •...
2.3 meters of required for FCC RF Exposure compliance the antenna. Antenna Gain vs. Recommended Safety Distance (EL705 OEM Series) Antenna Gain (EL705 OEMSeries) 10–16.5 0–5 dBi 5–10 dBi Minimum RF 0.6 meter...
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MDS Quality Policy Statement We, the employees of Microwave Data Systems Inc., are committed to understanding and exceeding our customer’s needs and expectations. • We appreciate our customer’s patronage. They are our business. • We promise to serve them and anticipate their needs.
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Customer Service Team using the information at the back of this guide. In addition, manual updates can often be found on the MDS Web site at www.microwavedata.com.
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OEM Series I/O Guide MDS 05-3624A01, Rev. B...
1.0 INTRODUCTION This guide presents installation and operating instructions for the MDS OEM Series™ of digital radio transceivers. The radios can be purchased as compact, modular boards for direct mounting inside remote terminal units (RTUs), programmable logic controllers (PLCs), automatic banking machines, or similar equipment.
(modem) at the main computer and at each remote site, usually built into the remote monitor itself. Since the cost of leasing a dedicated-pair telephone line is quite high, radio is frequently used as an alternative communication medium. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
Figure 3. It provides a simplex or half-duplex communications link for the transfer of data between two locations. Invisible place holder Figure 3. Typical Point-to-Point Link MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
Switched Carrier Operation Switched Carrier operation is a half-duplex mode where the master station transmitter is keyed to send data and unkeyed to receive. MDS OEM Series™ radios operate in switched carrier mode and are keyed when data is present.
Radio programming software for use 03-3649A01 Software (EL705) with a Windows-based PC. This program is available on 3.5” disks, and is included on the MDS’ InSite 6.4 (or higher) CD. PC Programming Required when programming the radio 01-3683A01 Adapter Kit with a personal computer operating in terminal mode.
RF output. Lower current consumption is possible if lower output power may be used in your application—seeOEM Series™ Transceiver Specifications on Page 26 for details.) NOTE: Use the radio in negative ground systems only. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
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Pin 2 (Transmitted Data—TXD), Pin 3 (Received Data—RXD), and Pin 7 (Signal Ground). Additional connections may be required in some installations. Refer to the complete list of pin functions in Table 4 on Page MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
Antennas The transceiver can be used with a number of antennas. The exact style depends on the physical size and layout of the radio system. Suitable antennas are available from several manufacturers, including MDS. At master stations, omni-directional antennas (Figure 8) are typically used to provide equal coverage to all remote sites in the network.
Pin 18 is intended only as an auxiliary output for powering a EQUIPMENT low-current (1.0 Amp max.) device, such as an RTU. DAMAGE NOTE: The radio is designed for use in negative ground systems only. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
When DEVICE is set to DCE, this pin follows RTS and will provide “buffer full” flow control. When DEVICE is set to CTS KEY, this pin provides a keyline output when receive data is present. MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
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A logic high (greater than 4 volts) indicates that some alarm condition is present. This pin can be used as an alarm output, provided the internal series resistance of 1 kΩ is considered. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
Flashing—Indicates another radio (with the same network (Data Carrier address) is transmitting at the radio’s receive frequency. Detect) Receive data is present on DATA INTERFACE connector. (Receive Data) Transmit data is present on DATA INTERFACE connector. (Transmit Data) MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
PC-based Radio Configuration software is available for use with the radio (MDS P/N 03-3649A01). This software is normally supplied on 3.5” disks, but can also be found on the MDS InSite disk (version 6.4 or higher) under the title of “EL705.” On-line instructions are included with the configuration software.
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Invisible place holder Figure 11. Terminal Interface (PC) Connected to the Transceiver (Pin 23 on cable must be grounded—see Figure MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
This may indicate an internal software problem. —Software was unable to program the internal radio NOT PROGRAMMED memory or the requested item was not programmed.This is a serious internal radio error. Contact MDS for assistance. —Response to command when too many TEXT TOO LONG characters have been entered.
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— The command was unable to write to EEPROM. EEPROM FAILURE INIT This usually indicates a hardware error. Contact MDS for assistance. Table 6. Command summary Command name Function ADDR [NONE | 1–255] Set or display the network address of the radio.
Each bit that is a ‘1’ identifies an associated alarm condition that can trigger the alarm output status line. Each bit that is a ‘0’ treats the associated alarm as irrelevant when deciding whether or not to assert the alarm output status line. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
RXD pin of the DATA INTERFACE port. The time is in milliseconds. The default value is 0, which means that CTS drops immediately after the last byte. MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
• is set to 9600 baud, 8 data bits, no parity, and 1 stop bit BAUD 9600 8N1 • is set to • is set to CTSHOLD • is set to DEVICE OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
This command displays the software revision level of the transceiver firmware. STAT This command displays the current alarm status of the transceiver. If no alarms exist, the message appears at the top NO ALARMS PRESENT of the terminal display. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
If the entered frequency is invalid, the terminal interface displays the message INCORRECT ENTRY NOTE: The frequency must be in the valid range for the sub-band purchased, and may not be programmed “between” channels. MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
(00–31) and the event is identified as a Major or Minor Alarm. A brief description of the alarm is also given. If more than one alarm exists, the word appears at the bottom of MORE the screen. To view additional alarms, press ENTER OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
(or seriously degrade) further operation of the transceiver. Major alarms generally indicate the need for factory repair. Contact MDS for further assistance. Minor Alarms—report conditions that, under most circumstances do not prevent transceiver operation. These include out-of-tolerance conditions, baud rate mismatches, etc.
6.0 TECHNICAL REFERENCE 6.1 OEM Series™ Transceiver Specifications MODELS MDS OEM Series™ 200: Licensed 200 MHz Transceiver MDS OEM Series™ 400: Licensed 400 MHz Transceiver RADIO TYPE Synthesized, half duplex, 12.5 kHz channel spacing, split frequency, or simplex ENVIRONMENTAL Temperature Range: –30 to +60 degrees C...
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150 mA @ low power (100 mW) :Circuit Protection: 2 amp fuse, surface mount Reverse Polarity Protection: Diode across primary input * At 19200 bps, the radio operates in a buffered mode, storing 50 characters at a time. MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
6.4 Upgrading the Radio’s Software From time to time, new product features or software maintenance files become available from MDS. This section describes the steps necessary to install new software into the transceiver using a PC connected to the radio’s port.
1. Connect a PC to the radio’s port via a DB-9 to DATA INTERFACE DB-25 adapter (MDS P/N 01-3683A01 or equivalent). If desired, an adapter cable may be constructed from scratch using the wiring diagram shown in Figure...
DCE—Data Circuit-terminating Equipment (or Data Communications Equipment). In data communications terminology, this is the “modem” side of a computer-to-modem connection. The MDS OEM Series™ is a DCE device. Decibel (dB)—A measure computed from the ratio between two signal levels. Frequently used to express the gain (or loss) of a system.
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Remote (Station)—A radio in a network that communicates with an associated master station. Remote Terminal Unit—See RTU. MDS 05-3624A01, Rev. B OEM Series™ I/O Guide...
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RTU—Remote Terminal Unit. A data collection device installed at a remote radio site. SCADA—Supervisory Control And Data Acquisition. An overall term for the functions commonly provided through an MAS radio system. Supervisory Control And Data Acquisition—See SCADA. OEM Series™ I/O Guide MDS 05-3624A01, Rev. B...
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IN CASE OF DIFFICULTY... MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment may have an occasional component failure. The following informa- tion will assist you in the event that servicing becomes necessary.
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175 Science Parkway, Rochester, New York 14620 General Business: +1 (716) 242-9600 FAX: +1 (716) 242-9620 Web: www.microwavedata.com...