Market Applications SCADA Telemetry Systems Multiple Address Communications Gas/Oil Production and Distribution Water, Gas and Electric Utilities Lotteries Traffic Control Industrial Process Control Railroad Communication Systems

MDS Master Station Series Product Overview

The GE MDS Redundant, Full-Duplex Master Station Series offers the ultimate in reliability and simplicity for ease of configuration and operation.

The GE MDS Master Station Series is the price/performance leader in licensed microwave radio in the 330-512 MHz frequency range. It gives increased throughput, longer-range alternatives for our customers' Multiple Address Systems needs. Transparent and direct asynchronous communication offer real-time communication. No extra software or programming is needed to implement communications from standard asynchronous protocols.

The GE MDS Master Station Series may operate as a full duplex, half-duplex or simplex radio and is configurable as a redundant master station or remote radio. When operating as a master station it controls all network parameters of the remotes. The MDS 4790 and MDS 4710 remote transceivers together offer a new level of ease of integration and performance reliability for our customers' data network systems.

Why Consider a GE MDS Master Station Series Solution?

High system performance and data integrity! Through robust construction and digital signal processing technology (DSP) we offer up to 19.2 kbps data throughput.

Reliability! For mission critical needs, system back-up capability is built-in.

Rapid Installation! Quick return on investment due to ease of wireless installation. This licensed radio offers the ability to communicate with any asynchronous protocol without extra software or extra programming.

Performance under the most adverse conditions! Exceptional design provides excellent performance in the face of interference or difficult signal paths. Will accept external bypass high performance duplexers or receive filters.

Network Wide Diagnostics! InSite Network Management software simplifies tasks and reduces the cost of managing the network infrastructure. Provides a non-intrusive means of maintenance and link monitoring.

Features

• Digital Signal Processing (DSP) Engine
• Software Configurable Modems
• Modular Design with Swappable Power Supply

More Information

• English PDF data sheet
• Portuguese PDF data sheet
• Spanish PDF data sheet
• French PDF data sheet
• Software/Firmware Downloads
• Installation Instructions and Product Manual

Specifications

General
Supports:	TXD, RXD, RTS, CTS, DCD, RUS, AUX POWER, DSR, and GND
Frequency Range:	330 to 512 MHz
Tx / Rx Split:	Simplex to 132 MHz
Data Interface:	RS-232, DB-25 Female Connector
Freq. Programmability:	6.25 kHz increments to any MAS channel pair
Operational Modes:	Async. - Simplex, half-duplex, full-duplex (synchronous available in MDS 4790B, and MDS 9790B)
MDS 4790A MDS 4790E Agency Approvals FCC Part 90 Industry Canada & CE Mark ETSI: ETS 300 113 EMC: EN 300 279 CE Mark
Transmitter
Carrier Power:	0.1 to 5 Watts Programmable
Duty Cycle:	Continuous
Output Impedance:	50 Ohms
Frequency Stability:	+/- 0.00015% (1.5 ppm)
Carrier Power Accuracy:	Normal +/- 1.5 dB
Receiver
Type:	Double Conversion Superheterodyne
Frequency Stability:	+/- 0.00015% (1.5 ppm)
Adjacent Channel (EIA):	60 dB nominal
Power
Primary Power:	100-240 Vac (50/60 Hz) 24/48 Vdc (21 to 60 Vdc) 125 Vdc external 12 Vdc external
Power Required:	< 60 Watts nominal
Modem
Modulation:	Digital / CPFSK
Latency (Rx-Tx-Rx):	10 ms including RTS/CTS delay
CTS Delay:	0-255 msec programmable in 1 msec increments
PTT Delay:	0-255 msec programmable in 1 msec increments
Data Rate (data):	110 bps - 38.4 kbps
MDS 4790A MDS 4790C MDS 4790E Bit Error Rate Sensitivity 9600 bps: BER 1x10 -6 @-110 dBm typical 19.2 kbps BER 1x10 -6 @-105 dBm typical 4800 bps: BER 1x10 -6 @-114 dBm typical Data Rate (rf) 9600 bps 19,200 bps 4800 bps
Environmental
Temperature Range:	-30°C to +60°C (-22°F to +140°F) at 95% humidity (non-condensing)
Physical
Front Panel:	Detachable for convenient location of Keypad/LCD panel
Rack Mount:	Flush or 5 inch offset
Dimensions:	9 cm (3.5 in) x 48 cm (19 in) (2U)
Weight:	9 kg (19.8 lbs)
Diagnostics
Local Diagnostics:	Included in all models
Network-wide Diagnostics:	Optional InSiteTM Radio System Management software
Configuration Diagrams
Typical MDS MAS Point-to-Multipoint Application Typical GE MDS Point-to-Multipoint Application with Spread Spectrum Tail-End Link