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MDS Mercury 900™

Mercury Product Photo  

Applications

  • High speed, low latency for SCADA and polling applications
  • High speed, backhaul alternative
  • Long range wireless Ethernet
  • Gateway for serial/legacy networks and/or devices to IP networks

 

Introducing MDS Mercury 900™

The Mercury 900 is a multi-megabit, long-range, industrial wireless IP/Ethernet solution, with advanced cyber-security. Featuring QoS, the Mercury 900 is able to be optimized for your specific application, whether mobile data, video surveillance, VoIP, or SCADA polling. In addition Mercury 900 is based on OFDM which enables it to use multipath to its advantage to enhance radio coverage.

The multiple interfaces of Mercury 900 facilitate the communication of Ethernet and/or serial devices through an IP network. The radio operates in the license-free 902-928 MHz ISM band at distances of up to 25 miles1 and with user throughput under optimal point-to-point conditions of over 8 Mbps.

The Mercury 900 provides the best combination of range and speed in the industrial market today.

Why use an MDS Mercury 900 Wireless Networking Solution?

Multi-megabit longest range product in the industrial class.

Reliable communications for your specific application by virtue of QoS and OFDM

Secure wireless operation – with multiple layers of protection, including AES-128 encryption, 802.1x and RADIUS authentication - current industry standards. This standard level of protection is supplemented by 900 MHz physical layer privacy.

Industrial reliability – Designed and built for low failure rates and reduced maintenance costs thereby providing low total cost of ownership.

Future proof – Mercury 900 adheres to open standards and interfaces with a wide range of external devices, allowing both new and old technologies to communicate.

Comprehensive Network Management - Compatible with MDS NETview MS™ and any standard off-the-shelf SNMP management system.

Features

  • Multi-megabit Speed
  • QoS
  • OFDM Encoding Technology
  • Adaptive split for optimal duty cycle calculation
  • Long Range Coverage—up to 25 miles1
  • Receive Diversity
  • Multiple Layers of Cyber Security, including AES-128 Encryption and RADIUS Authentication
  • Extended Temperature Range
  • Class 1 Div 2 for Hazardous Locations

More Information

Specifications

General | Radio | Physical | Protocols | Security Suite | Management | Environmental | Electrical | Mechanical | Agency Approvals | Configuration Diagrams

General

  • Raw Bit Rate: from 600 kHz to 12.7 Mbps (see chart below)
  • Frequency Band: 902-928 MHz ISM band
  • Orthogonal Frequency Division Multiplexing (OFDM)
    • 200 Carriers per Channel
  • Range (BPSK/1.75 MHz channel)1:
    • Typical Fixed Range: 12-15 miles
    • Maximum Fixed Range: 25-30 miles
    • Typical Mobile Range (parked): 3-5 miles, strong RF signal environment
    • Typical Mobile Range (moving): 2-4 miles, strong RF signal environment
  • Available Configurations:
    • Access Point - Ethernet, Serial, GPS
    • Remote - Ethernet, Serial, GPS

Radio

  • System Gain: 140 dB for 1.75 MHz channel, 137 dB for 3.5 MHz channel
  • Carrier Power: 0.1 to 1 watt
  • Output Impedance: 50 Ohms
  • Sensitivity and Data Rate2:
    3.5 MHz Bandwidth Mode 1.75 MHz Bandwidth Mode
    Modulation (CP=1/16) Sensitivity Signaling Rate Max User Throughput Aggregate Sensitivity Signaling Rate Max User Throughput Aggregate
    64-QAM 3/4 -77 dBm 12.7 Mbps 7.2 Mbps -80 dBm 6.35 Mbps 3.6 Mbps
    16-QAM 3/4 -86 dBm 8.4 Mbps 4.8 Mbps -89.5 dBm 4.2 Mbps 2.4 Mbps
    QPSK 3/4 FEC -92 dBm 4.2 Mbps 2.4 Mbps -95 dBm 2.1 Mbps 1.2 Mbps
    BPSK 1/2 FEC -95 dBm 1.4 Mbps 500 Kbps -98 dBm 706 Kbps 250 Kbps

    (i) Mercury is a half-duplex radio, so max user throughput is based on configured or dynamic duty cycle, which is typically 50/50 indicating that half of the max throughput would be available one way.

    (ii) The max throughput is also based on high protocol overhead from TCP/IP applications. For UDP applications, these throughput numbers will increase.

Physical Interface

  • Ethernet: 10/100BaseT, RJ-45
  • Serial: 1,200 – 115,200 bps
    COM1: RS-232, DB-9F
  • Antennas: TX/RX and RX (diversity mode) - TNC connectors
    GPS - Female SMA connector
  • LEDs: PWR, COM1, LINK, LAN

Protocols

  • Ethernet: IEEE 802.3, Spanning Tree (Bridging), VLAN, IGMP
  • TCP/IP: DHCP, ICMP, UDP, TCP, ARP, Multicast, SNTP, TFTP
  • Serial: Encapsulation over IP (tunneling) for serial async multidrop protocols including Modbus, DNP.3, DF1, BSAP

MDS Cyber Security Suite, Level 1

  • Encryption: AES-128 with automatic key rotation.
  • Authentication: 802.1x, RADIUS, EAP/TLS, PKI, PAP, CHAP
  • Management: SSL, SSH, HTTPS

Management

  • HTTP, HTTPS, TELNET, SSH, local console
  • SNMPv1/v2/v3, MIB-II, Enterprise MIB
  • MDS NETview MS™ compatible

Environmental

  • Temperature: -40°C to +70°C (-40°F to +158°F)
  • Humidity: 95% at 40°C (104°F) non-condensing

Electrical

  • Input Voltage range: 10-30 Vdc
  • Current Consumption (nominal):
    Mode Power 13.8 Vdc 24 Vdc
    AP Operational (50% TX) 16W 1.16A 667mA
    TX (Maximum) 30W 2.2A 1.25A
    RM Operational & Associated 12W 870mA 500mA
    TX (Maximum) 25W 1.8A 1.04A

Mechanical

  • Case: Die Cast Aluminum
  • Dimensions: 5.715 H x 20 W x 12.382 D cm. (2.25 H x 7.875 W x 4.875 D in.)
  • Weight: 1kg (2.2 lb.)
  • Mounting options: Flat surface mount brackets, DIN rail, 19” rack tray

Agency Approvals

  • FCC Part 15.247
  • CSA Class 1 Div. 21 (UL 508, UL 1604) pending3
  • IC pending

Configuration Diagram

Mercury Diagram
Footnotes
1

Typical fixed range calculation assumes a 6 dBd gain Omni on a 100 ft tower at the AP, a 10 dBd gain Yagi on a 25 ft mast at the remote with output power decreased to yield maximum allowable EIRP (36 dBm), a 10 dB fade margin, and a mix of agricultural and commercial terrain with line of sight.

Typical mobile range calculation assumes a 6 dBd gain Omni on a 100 ft tower at the AP, a 5 dBd gain Omni with 1 watt output power at 6 ft height, a 10 dB fade margin, and 90% reliability with near line-of-sight in a mix of agricultural and commercial terrain. Maximum range achieved with a clear line-of-sight path, and fresnel zone clearance. Actual performance is dependent on many factors including antenna height, blocked paths and terrain.
2 Please note that for best range and performance, mobile data is limited to using a 1.75 MHz channel and BPSK and QPSK modulation schemes.

GE MDS products are manufactured under a quality system certified to ISO 9001. GE MDS reserves the right to make changes to specifications of products described in this data sheet at any time without notice and without obligation to notify any person of such changes.

Copyright 2005 GE MDS Inc. (MDS Mercury SL0127) Rev B, 03-30-07