Secure, Long Range IP/Ethernet & Serial Covering Subscriber, Base, and Outdoor Subscriber Units of the Mercury 16E Series MDS 05-6302A01, Rev.
Quick-Start instructions for this product are contained in publication 05-6301A01. All GE MDS user guides are available online at www.gemds.
TABLE OF CONTENTS 1.0 PRODUCT DESCRIPTION................................................................................................... 1 1.1 Product Models ............................................................................................................................. 2 1.2 Key Features ................................................................................................................................. 3 1.3 Key Specifications ..................................................
.2 802.11 Wi-Fi Interface (Optional Feature) ................................................................................... 31 802.11 Configuration Options ........................................................................................................ 32 802.11 Status ................................................................................................................................. 36 4.3 Radio Test Mode Menu ......................................................................
9.0 dBm-WATTS-VOLTS CONVERSION CHART .................................................................... 76 Band History .................................................................................................................................. 77 Technical Details ............................................................................................................................ 77 Exclusion Zones...............................................................................................
Pour les installations ODU: Dans l'industrie des règlements du Canada, cet émetteur radio peut fonctionner uniquement à l'aide d'une antenne d'un type et un maximum (ou moins) de gain approuvé pour l'émetteur par Industrie Canada. Pour réduire le risque d'interférence aux autres utilisateurs, le type d'antenne et son gain doivent être choisis afin que la puissance isotrope rayonnée équivalente (PIRE) ne dépasse pas ce qui est nécessaire pour une communication réussie.
L'énergie concentrée en provenance d'une antenne directionnelle peut présenter un danger pour la santé. Ne pas permettre aux gens de s'approcher à moins de 25 cm à l'avant de l'antenne lorsque l'émetteur est en opération. On doit augmenter la distance proportionnellement si on utilise des antennes ayant un gain plus élevé. Ce guide est destiné à être utilisé par un installateur professionnel. Plus d'informations sur l'exposition aux rayons RF peut être consulté en ligne à l'adresse suivante: www.fcc.
vi MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev.
1.0 PRODUCT DESCRIPTION The GE MDS Mercury SeriesTM transceiver is an easy-to-install WiMAX solution offering extended range, secure operation, and multi-megabit performance in a compact and rugged package. Mercury is ideally suited for wireless data applications in Smart Grid Electric, Oil and Gas, Water/Wastewater, and other industrial uses in fixed locations where range, reliability, throughput, and security are paramount. Figure 1.
For installation and setup instructions for these products, please refer to GE MDS publication 05-6301A01. 1.1 Product Models The Mercury transceiver is available in several different product models: • The indoor Base Station (BS) acts as the center of each point-to-multipoint network. It has two RJ-45 Ethernet ports and a DB-9 RS-232 serial port for data connections. • The indoor Subscriber Unit (SU) acts as one of the multipoints in the network.
Table 1. Mercury Models and Interfaces (Continued) Antenna External External 15 dBi panel ant. for 1800 model 18 dBi panel ant. for 3650 model 18 dBi panel ant for 5800 model Wi-Fi -- Optional reverse SMA connector Optional reverse SMA connector 1.2 Key Features The Mercury transceiver supports: • WiMAX IEEE 802.
Table 2. Key Specifications (Continued) Frequency Bands 1800 to 1830 MHz (Industry Canada) 3650 to 3675 MHz (FCC, Industry Canada) 5725 to 5825 MHz (FCC) Frequency step size 250 kHz Bandwidth 3.5, 5, 7, 8.75, and 10 MHz Wi-Fi (optional) 2.4 GHz, 802.11b/g protocol RF Power Output 1800 and 3650 models: 30 dBm for all units, except 23 dBm for 3650 ODU 5800 model: +18.0 dBm for ODU; 17.
2.0 QUICK-START INSTRUCTIONS 2.1 Connecting to the Device Manager The Mercury transceiver contains a built-in web server, known as the Device Manager, for configuration and diagnostics. Each transceiver needs to have some basic configuration parameters set before placing the unit in service. To start the Device Manager, connect an Ethernet cable from the Mercury to the PC used for configuration.
2.2 Configure IP Address and Identity The IP Address of the unit is configured on the Configuration - IP & Networking page. The IP address and netmask should be set according to the network configuration defined by the system administrator. Note that if the IP address is changed, the web browser session will need to be re-started with the new configuration. Invisible place holder Figure 4.
2.3 Basic Connectivity To establish basic connectivity between a Base Station and a Subscriber, start the configuration with the Base Station. The IP address and Device Name will be as set from the factory (or by the previous user). With a factory-fresh unit, the Device Name will blank. The Configuration - Radio page contains the key parameters for configuring the WiMAX interface. Invisible place holder Figure 6. Mercury Configuration—Radio For 3650 units, the frequency defaults to 3662.
Invisible place holder Figure 7. Benchtop Test Setup Use the Maintenance & Status - Performance page on the Subscriber to monitor the establishment of the link. Invisible place holder Figure 8. Maintenance and Status Screen The WiMAX Network Status will display a Connection Status of OPERATIONAL when the Subscriber is successfully linked to the Base Station. This pane also displays the signal strength and quality. For a cabled, benchtop test, an RSSI of -70 dBm is acceptable.
Setup for Maximum Throughput To demonstrate maximum throughput, several configuration changes must be made. In addition, the link needs to be cabled according to Figure 7, with a strong signal, that is, above -70 dBm. If necessary, the link attenuation should be adjusted to reach the desired RSSI level. The transmit power of the Base Station should be reduced to 10 dBm to ensure that the Subscriber only receives the signal through the cables and not directly from enclosure to enclosure.
Authentication Authentication is the process by which one network entity verifies that another entity is who or what it claims to be and has the right to join the network and use its services. Authentication in wireless SCADA networks has two primary forms: User Authentication and Device Authentication. User authentication allows a device to ensure that a user may access the device's configuration and services.
the Subscriber to join the network, then the data encryption keying material is sent to the Base Station. The Base Station then continues the PKM protocol to further derive keying material that is used to secure transmissions between the Base Station and the Subscriber. The Subscriber must be configured with X.509 certificates that are appropriate for the Public Key Infrastructure (PKI) in which they are deployed. These certificates are used to identify and authenticate the Subscriber to the RADIUS sever.
There are two operating modes that the Mercury supports. The first mode is Matrix A in which the Mercury uses Space-Time Coding (STC) on the transmitter to allow it to send the same data on each channel but coded differently in order to get transmit diversity. On the receive side, the Mercury transceiver uses Maximum Ratio Combining (MRC) to more accurately reconstruct the received signal by using both receive channels.
• ARQ Window Size - The number of blocks of ARQ data that can be transmitted without receiving an acknowledgment. • ARQ Block Lifetime - The maximum period, in milliseconds, that the ARQ block is considered still valid and can be retransmitted. • ARQ Transmitter Delay - The amount of delay time, in milliseconds, at the transmitter. • ARQ Receiver Delay - The amount of delay time, in milliseconds, at the receiver.
Invisible place holder Figure 10. Configuration—Radio (HARQ Category Setting) 4.0 PERFORMING COMMON TASKS 4.1 Basic Device Management There are several ways to configure and monitor the Mercury transceiver. The most common method is to use a web browser to connect to the device's HTTP/HTTPS server. This can be done by opening a web browser and entering the Mercury's IP address. Another way to connect, especially if the IP address is unknown, is to use the USB interface.
Next, expand the group labeled Ports (COM & LPT). A new COM port will appear as Gadget Serial when the device is connected. Open a new session for the newly added COM port using a terminal program such as PuTTY, HyperTerminal, ProComm, etc. Note that the baud rate will be ignored as this is not an actual serial port. Using Configuration Scripts Configuration scripts can be used to save, restore, and copy configurations from unit to unit.
Perform Firmware Upgrade New firmware is periodically released by GE MDS to deliver new features and performance enhancements. The latest firmware can be downloaded from the GE MDS website at www.gemds.com. There are several ways to load new firmware on the Mercury transceiver. The firmware file can be transferred using FTP, SFTP, TFTP, or a USB flash drive. The selection between FTP, SFTP, or TFTP must be made according to the user's network and security environment.
Instructions for Completing the Firmware Upgrade Process (Applies to all loading methods above) Once the file transfer is complete, select the new image under the Device 12) and press the Reboot button. The transceiver verifies the integrity of the new firmware image and then reboots to it. Reboot pane (see Figure Invisible place holder Figure 12. Maintenance & Status—Firmware Utilities Screen Configuring Networking Features for VLAN The Mercury supports IEEE 802.1Q, or VLAN tagging.
The Management VLAN IP address allows administrators to manage the transceiver using the usual networked interfaces, such as Web, telnet, and SNMP. Those services are only available through the Management VLAN IP address while VLAN is enabled. The Management VLAN IP Address settings are configured under the MGMT VLAN Subnet Configuration Menu or the IP Address section on the web page. The Serial VLAN IP address allows SCADA networks to connect to the Serial Terminal Server on the transceiver.
Management VLAN Mode determines whether or not VLAN tags will be applied to Management frames. When the mode is set to Tagged Mode, management frame s are expected to already have the management VLAN ID attached to them. If management frames arrive at the trunk port without a VLAN ID and the mode is Tagged Mode, then those frames will be ignored. In Native Mode, management frames do not need the VLAN tag. The frames will automatically be included in the Native VLAN, which is the management VLAN.
The Base Station is configured as follows: Figure 13. Base Station VLAN Configuration Settings The Subscriber Unit is configured as follows: 20 MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev.
Invisible place holder Figure 14. Subscriber Unit VLAN Configuration Settings Configure Serial Data Interface for TCP, UDP, MODBUS Overview The transceiver includes an embedded serial device server that provides transparent encapsulation of serial data in IP packets. In this capacity, it acts as a gateway between serial and network-based devices.
Dual Purpose Capability The transceiver's COM1 serial port is able to function as a local console or in data encapsulation mode. When the Com 1 Status parameter is set to Enabled, the port operates in data encapsulation mode. It can be reverted back to console mode by entering the escape sequence +++ at the data mode baud rate (or using the web interface to disable). TCP and UDP Encapsulation The serial data can be encapsulated in either TCP or UDP packets.
The transceiver keeps a TCP session open until internal timers that monitor traffic expire. Once a TCP session is closed, it must be opened again before traffic can flow. The timeout period, labeled TCP Keepalive, is user-configurable and should be set to match the application data flow and balance a trade-off between responsiveness and connection overhead. TCP connection establishment can introduce a slight delay to data delivery, as it performs handshaking between the client and server.
Invisible place holder Figure 15. Setup Wizards—Serial Configuration To begin the Serial Wizard, click the Begin Wizard link under the Serial Wizard table. The wizard prompts for the protocol to configure. The options are TCP, UDP, or TCP/MODBUS. Example: TCP Server The following procedure describes how to setup a TCP Server. 1. Select TCP as the IP protocol. 2. Select the desired TCP mode - client or server or client/server. 3. Next, specify the local port to use for receiving TCP data from the host.
6. The current settings are shown. Click Commit Changes to apply all settings and exit the Serial Wizard. Invisible place holder Figure 16. Serial Wizard's Commit Changes Screen Configure QOS Quality of Service (QoS) is configured on the Base Station through the use of service flows. Service flows can be created through the web interface and through the use of QoS configuration scripts. The web interface displays the active service flows as well the user-configured flows.
Service Types WiMAX provides five types of service: Unsolicited Grant Service (UGS), Real-time Polling Service (RTPS), Non-real time polling Service (nRTPS), Enhanced Real-time Polling Service (eRTPS), and Best Effort (BE). The characteristics and typical uses for service type are given in Table 4 below. Table 4. Service Types and Characteristics Service Type Characteristics Typical Uses Unsolicited Grant Service (UGS) The BS grants bandwidth to the SU without it needing to make a request.
Table 6 provides a description for each of the above parameters. Table 6. Parameter Descriptions Parameter Description Min Reserved Rate The minimum rate in bits per second that must be reserved for the service flow. For UGS, the Min Reserved Rate is set to the same value as the Max Sustained Rate. Max Sustained Rate The maximum rate in bits per second that the service flow will increase to. It is used as an upper bound for the flow.
Creating a Service Flow The Add New Service Flow button allows for a new service flow to be created and configured. Pressing this button displays the following dialog box. Invisible place holder Figure 18. Configuration QoS Screen (Edit Service Flow) QOS Example: Low Latency To create a service flow providing consistent low latency, the UGS service type should be used. The grant interval should be set to match the desired latency.
QOS Example: Prioritizing a Data Flow In order to prioritize one traffic flow over another, the service flow priority should be used. In this example, there are two VLANs on the trunk at the Base Station. Suppose the user wants to treat traffic on VLAN 5 as higher priority than traffic on VLAN 6 in the event of heavy network traffic or congestion. To accomplish this, uplink and downlink service flows are created that classify on VLAN ID, assigning a higher priority to VLAN 5's service flows.
NOTE: When using QoS with a subscriber-specific MAC address, an uplink and downlink service flow must be created. Otherwise, no data will pass over the air. The dialog box shown in Figure 20 shows the uplink service flow for VLAN 6. Figure 20. Edit Service Flow Screen (VLAN 6) Once configured, the list of provisioned service flows appears similar to that shown in Figure 21 below. Figure 21. Manage Provisioned Service Flows 30 MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev.
QoS Traffic Shaping Traffic shaping is selectable on the Configuration - QoS menu. It is a rate-limiting mechanism by which the WiMAX scheduling engine delays packets when necessary to limit the overall packet rate to a certain maximum. Traffic shaping can be useful when the payload into the WiMAX network is very “bursty” in nature and the high end of the packet rate is greater than the capacity of the WiMAX link.
802.11 Configuration Options Not all settings shown here are available at all times. Some can only be configured when an appropriate mode has been set; for example WPA security settings can only be configured if the security mode is set to WPA. A parameter in the following tables is configurable only when the 802.11 Mode has been set to one of the selections in the Mode column of the table. The following abbreviations apply. • AP - Access point mode • STA - Station mode • AH - Ad-Hoc mode Table 7. 802.
Table 8. 802.11 IP Address Settings Parameter Mode Description 802.11 IP Address Mode AP, STA, AH Static/Dynamic—Whether or not to use the statistically assigned IP Address specified below or to obtain IP settings from a DHCP server. 802.11 IP Address AP, STA, AH xxx.xxx.xxx.xxx—The static IP address to use. 802.11 IP Netmask AP, STA, AH xxx.xxx.xxx.xxx—The static IP netmask to use. IP Gateway AP, STA, AH xxx.xxx.xxx.xxx—The static IP gateway to use.
Table 10. Settings for WPA, WPA2 Security Modes Parameter Mode Description 802.11 IP Privacy Mode AP, STA WPA-PSK, WPA Enterprise, WPA2 Personal, WPA2 Enterprise—Type of privacy applied. 802.11 WPA Encryption AP, STA TKIP, CCMP—Method of encryption to use. Preshared Key AP, STA WPA-PSK, WPA2 Personal—A string of up to 64 characters used for encryption. EAP Method AP, STA EAP-TLS—Method of EAP to use for authentication (Enterprise). Certificates to Use STA Wi-Fi 802.
Invisible place holder Figure 24. 802.11 Configuration for Ad-Hoc Mode MDS 05-6302A01, Rev.
Invisible place holder Figure 25. Configuration for Access Point Mode 802.11 Status The status of the 802.11 module and network is available in the Maintenance & Status section. The information displayed differs depending on the 802.11 mode selected. Figure 26 and Figure 27 show two examples of this status information. 36 MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev.
Invisible place holder Figure 26. 802.11 Status when in Access Point Mode MDS 05-6302A01, Rev.
Invisible place holder Figure 27. 802.11 Status when in Station or Ad-Hoc Mode. 4.3 Radio Test Mode Menu The Radio Test Mode screen (Figure 28) allows keying the transmitter for performance checks and setting of several parameters used during tests. NOTE: Using Test Mode disrupts traffic through the radio. If the unit is a Base Station, it will disrupt traffic through the entire network. The Test Mode function is automatically limited to 10 minutes. Only use Test Mode for brief measurements.
The following parameters are read-only unless Radio Test Mode is first selected and set to Test. In Test Mode, these items become selectable: • • • • • • Test Key—Sets/displays keying status of the transmitter. Test Transmit Power—Sets/displays the transmitter's power setting. Test Frequency—Sets/displays the radio’s test frequency. Test RF Bandwidth—Sets/displays the transmitter's bandwidth for testing. Test Modulation—Sets/displays the modulation to use for testing.
User Accounts Each Mercury transceiver has two local user accounts available via console terminal management, as listed in the chart below: Table 11. Local User Accounts Username Default Password Access Level operator operator Read-only access to configuration parameters, status, performance metrics, and statistics. admin admin Read and write access to all configuration parameters.
4.5 RADIUS Server Configuration Using the Configuration - Security page, each Mercury transceiver can be configured with one or two IP addresses for RADIUS servers. The RADIUS server is used for user authentication and device authentication. The IP address, port, shared secret, and authentication protocol can be configured for each RADIUS server. If two servers are configured, the device will use the first server for authentication processes.
Specify the filename of the certificate as it appears on the server or USB flash drive used. Specify the certificate type: Root CA, Public certificate, or Private Key. Once these parameters are set, begin the transfer by pressing the Retrieve Certificate button. Repeat this process for each of the three certificates. Invisible place holder Figure 31. Configuration - Security Screen (Certificate Portion) Configure SNMPV3 Overview The Mercury transceiver supports SNMP protocol version 3.
• Limited USM User Table Manipulation. The SNMP Agent starts with five default accounts. New accounts can be added (SNMPv3 adds new accounts by cloning existing ones), but they will be volatile (will not survive a power-cycle). New views cannot be configured on the SNMP Agent. Views are inherited for new accounts from the account that was cloned. The SNMP Agent uses one password pair (Authentication/Privacy) for all accounts. This means that when the passwords change for one user, they change for all users.
If passwords are managed locally, they can be changed on the Agent (via the console). Any attempts to change the passwords for the Agent via an SNMP Manager will fail when the Agent is in this mode. Locally defined passwords will survive a power-cycle. In either case, the SNMP Manager needs to know the initial passwords being used in order to communicate to the Agent. If the Agent's passwords are configured via the Manager, they can be changed from the Manager.
4.6 Use of the Antenna Alignment Tool The antenna alignment tool (expected availability late 2012) is intended for use with the ODU Subscriber. The tool provides status and performance indicators and is intended for use during ODU installation and troubleshooting. The tool features indicators for Power, Device status (Operational or Alarmed), Link status, RSSI, and SNR. It is powered by the ODU over the USB connection.
5.0 TROUBLESHOOTING 5.1 LED INDICATORS Table 12.
Note that the term “Downlink” refers to the wireless path from the Base Station to the Subscriber and the term “Uplink” refers to the Subscriber to Base Station path. In addition to the packet and byte statistics, each unit provides packets-per-second and kilobits-per-second metrics in real time. The Clear WiMAX Statistics button can be clicked to reset the packet and byte counters and the rate indicators. 5.
Table 13. Troubleshooting Checks (Continued) Symptom Possible Cause/Remedy Unable to log in due to lost Password The configuration, including the user account passwords for the unit, can be reset by logging in with a special user account and entering an authorization key. The authorization key is a cryptographic key generated by GE MDS for the specific serial number of the device. The key can be obtained by contacting GE MDS Technical Services.
Invisible place holder ANTENNA SYSTEM Subscriber: Directional Ant. Base Unit: Omni Ant. RTU/PLC LOW-LOSS COAX Ethernet Cable to Radio TO DC POWER SUPPLY (1060 Vdc) Ethernet Cable to Radio PC FOR RADIO MANAGEMENT Figure 32. Typical Installation with a Tower-Mounted Antenna (SU shown; BS Similar) NOTE: When using Power over Ethernet (PoE), do not use data lines to carry power. Suitable power supply models are listed in the GE MDS Accessories Guide.
Invisible place holder Release Tab Step 1: Attach the bracket using the the two screws provided. (Attach to the end opposite the connectors.) Step 2: Snap the assembly onto the DIN Rail. Removal is performed by pulling down on the release tab. Figure 33. DIN Rail Mounting of GE MDS Equipment (Unit shown is for example only, and is not a Mercury Transceiver) 6.
Normally, the transceiver is adequately grounded if the supplied flat mounting brackets are used to mount the radio to a well-grounded metal surface. If the transceiver is not mounted to a grounded surface, it is recommended that a safety ground wire be attached to one of the mounting brackets or a screw on the transceiver’s case. The use of a lightning protector is recommended where the antenna cable enters the building; Bond the protector to the tower ground, if possible. 6.
may be constructed using the pinout information in Figure 35 and Table 15. 5 9 1 6 Figure 35. COM1 Port (DCE) (Viewed from the outside of the unit.) Table 15. COM1 Port Pinout, DB-9F/RS-232 Interface Pin Functions DCE 1 Unused 2 Receive Data (RXD) <—[Out 3 Transmit Data (TXD) —>[In 4 Unused 5 Signal Ground (GND) 6–9 Unused 6.
Invisible place holder Figure 36. Typical Yagi Antenna (mounted to mast) Feedlines The choice of feedline used with the antenna should be carefully considered. Poor-quality coaxial cables should be avoided, as they will degrade system performance for both transmission and reception. The cable should be kept as short as possible to minimize signal loss. We recommend using a low-loss cable type suited for the frequency of operation, such as Heliax®.
GPS Cabling & Antenna The antenna to be used with the transceiver’s built-in GPS receiver should be a 16 or 26 dBi active antenna designed for the GPS satellite band. The GPS antenna connector delivers a 3 Vdc supply to power the electronics in the active antenna. 6.7 Conducting a Site Survey If you are in doubt about the suitability of the radio sites in your system, it is best to evaluate them before a permanent installation is underway.
Although these antennas may be more costly than omnidirectional types, they confine the transmission and reception pattern to a comparatively narrow lobe, that minimizes interference to (and from) stations located outside the pattern. • If interference problems persist, try reducing the length of data streams. Groups of short data streams have a better chance of getting through in the presence of interference than do long streams.
Procedure 1. Place a directional wattmeter between the radio (TX/RX connector) and the antenna system. 2. With the transmitter keyed, measure the forward and reflected power on the wattmeter. Reflected power should be no more than 10% of the forward power. Record these readings for future reference. NOTE: The transmitter has a 10-minute timer. When in test mode, it will dekey after 10 minutes of continuous operation. The Radio can also be dekeyed by temporarily disconnecting the radio’s DC power. 3.
5. Optimize RSSI (less negative indicates a stronger signal) by slowly adjusting the direction of the antenna. Watch the RSSI for several seconds after making each adjustment so that it accurately reflects any change in the link signal strength. 6. Once RSSI is optimized, view the Packets Dropped and Receive Error rates. They should be the same or lower than the previous (recorded) readings.
bridge running STP sends out Bridge Protocol Data Units (BPDUs) at regular intervals so that the spanning tree can be built and maintained. BPDUs are 60-byte multicast Ethernet frames. NOTE: STP expected availability is mid-2012. 7.2 Distance-Throughput Relationship Distance affects throughput. Because of timers and other components of the protocol, there is a practical distance limit of 30 miles (48 km) for reliable operation.
7.6 Interference has a Direct Correlation to Throughput Interference could be caused by other radios at the same site, in nearby locations, or by high power transmitters such as paging systems. Such interference will have a negative effect on data throughput of the radio system. 7.7 Placing the Radio Behind a Firewall Mercury radios use the port numbers listed below.
8.0 INDEX OF CONFIGURATION PARAMETERS Table 17 contains brief explanations of the parameters and selections available through the Mercury user interface. The list is intended to be a reference, and not an exhaustive discussion of every possible menu function. Users should consult the built-in Help option available from the top of each menu screen for additional assistance, as required. 60 MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev.
Table 17. Configuration Parameters Menu Location Parameter Name Description Default Value Possible Values Configuration – Identity & Time Device Information Device Name Contact Location Description Console Baud Rate The Device Name is a user-configurable parameter that is used to ease configuration and monitoring. Typically this parameter is set to a label that makes it easy to identify the specific unit.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values Static IP Address This is the IP address that the Mercury transceiver uses for its management interfaces (web, SNMP, SSH, and telnet). 192.168.1.1 Static IP Netmask This is the Netmask used in conjunction with the Static IP Address 255.255.255.0 Static IP Gateway This is the IP address of a Gateway device on the network used for inter-subnet routing. 0.0.0.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values Port Status (LAN) LAN1/2 Port Enable LAN is enabled/disabled. Note that LAN2 only applies to BS/SU indoor units (IDUs). Enabled Enabled, Disabled LAN1/2 Port Phy Rate Speed/Duplex of LAN port. Over-the-air link status depends on Base Station’s LAN connection. Note that LAN2 only applies to BS/SU indoor units (IDUs).
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values TX Power Transmit power of the Wi-Fi radio in dBm. 15 dBm Log 802.11 Events Enable/Disable logging of Wi-Fi events in the Event Log. Disabled Enabled, Disabled NIC in Bridge (AP only) When enabled, the Wi-Fi interface is bridged to the Network Interface Card, allowing traffic to pass between the Wi-Fi and the other interfaces (LAN and wireless).
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values WEP Auth Mode Determines the authentication mode used by the radio. This parameter is not configurable, as the radio only supports Open System. The entry is provided as a reminder of the mode, but it cannot be changed. Open 802.11 WPA Encryption Type of encryption security used in WPA security modes.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values Frequency Frequency This is the operating frequency of the WiMAX radio interface. Frequency range limits can be affected by bandwidth selection. 1815, 3662.5, or 5800 MHz 1800 to 1830 (1800 models) 3651.75 to 3670 (3650 models) 5725 to 5825 (5800 models) RF Bandwidth Frame Profile This is the operating bandwidth of the WiMAX radio interface. 3.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values The MIMO Type parameter controls the use of the second RF antenna port. In Matrix A/B mode, the Mercury transceiver automatically chooses the appropriate operating mode according to the packet error rate (PER) performance of the wireless channel. None HARQ BS only. This is the Base Station parameter that enables the use of Hybrid Automatic Repeat Request.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values QoS Configuration-QoS (Applies to BS only) QoS Traffic Shaping Disabled Enabled, Disabled Traffic shaping affects all QoS-enabled PSFs, including the default SFs. When shaping is enabled, the BS delays packet transmission if the maximum rate is reached. When shaping is disabled, packets are dropped. Enabling shaping improves throughput at the cost of delayed packets.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values SNMP Mode This parameter specifies the protocol(s) that the SNMP agent should support. Disabled SNMP community name with SNMPv1/SNMPv2c read access. This string. SNMP community name with SNMPv1/SNMPv2c write access. This string.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values Telnet Access This parameter allows or disallows the TELNET interface to operate. For secure installations, it is recommended that TELNET be disabled. Enabled Enabled, Disabled SSH access This parameter allows or disallows the SSH interface to operate. Enabled Enabled, Disabled HTTP Mode The operation of the web server can be disabled or set to HTTP or HTTPS mode.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values Server 2 Address This is the IP address of a second RADIUS server that will be used if the first RADIUS server is not reachable. 0.0.0.0 Server 2 Port The UDP port that the RADIUS server is listening on. 1812 Shared Secret 2 The secret phrase shared between the RADIUS server and client.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values Event Log Host Address Set/display the IP address of the TFTP server. 0.0.0.0 TFTP Timeout The time the client radio will wait for a response from the server before ending the transfer. 15 sec. 10-120 sec. TFTP Block Size The amount of data sent in each TFTP packet. 512 bytes 512, 1020, 2048, 4096, 8192 bytes File Transfer Username Login username for FTP/SFTP server.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values TFTP Block Size The amount of data sent in each TFTP packet. 512 byte 512, 1020, 2048, 4096, 8192 bytes TFTP Timeout The time the client radio will wait for a response from the server before ending the transfer. 15 seconds 10-120 seconds File Transfer Username Login username for FTP/SFTP server. Blank 0-40 characters File Transfer Password Login password for FTP/SFTP server.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values TFTP Block Size If TFTP is used for file transfers, the TFTP Block Size is used to control the protocol transfer size. When transferring file over wired LAN interfaces, a block size of 4096 or 8192 will make the transfer go faster. When transferring over a lossy wireless link, the block size should be kept to 512 or 1024 to minimize packet retries.
Table 17. Configuration Parameters (Continued) Menu Location Parameter Name Description Default Value Possible Values TFTP Block Size If TFTP is used for file transfers, the TFTP Block Size is used to control the protocol transfer size. When transferring file over wired LAN interfaces, a block size of 4096 or 8192 will make the transfer go faster. When transferring over a lossy wireless link, the block size should be kept to 512 or 1024 to minimize packet retries.
9.0 dBm-WATTS-VOLTS CONVERSION CHART Table 18 is provided as a convenience for determining the equivalent voltage or wattage of an RF power expressed in dBm. Table 18. dBm-Watts-Volts conversion—for 50 ohm systems 76 dBm V Po dBm V Po dBm mV +53 +50 +49 +48 +47 +46 +45 +44 +43 +42 +41 +40 +39 +38 +37 +36 +35 +34 +33 +32 +31 +30 +29 +28 +27 +26 +25 +24 +23 +22 +21 +20 +19 +18 +17 +16 +15 +14 +13 +12 +11 +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 200W 100W 80W 64W 50W 40W 32W 25W 20W 16W 12.5W 10W 8W 6.
APPENDIX-A 3650 MHz Band Information Band History • Historically part of the Fixed Service Satellite (FSS) allocation • FSS operators are considered “grandfathered” operations and are provided protection in the form of “exclusion zones” • About 85 users remain, mostly on East and West Coasts of U.S. • Over 20 states with no grandfathered operations in effect • Recently, the FCC allocated 50 MHz of this spectrum (3.65 – 3.
78 MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev.
APPENDIX-B Glossary of Terms & Abbreviations If you are new to wireless IP/Ethernet systems, some of the terms used in this guide may be unfamiliar. The following glossary explains many of these terms and will prove helpful in understanding the operation of your radio network. While not all of these terms apply to every use of the transceiver, they are provided to give a more complete understanding of common wireless concepts.
Cyclic Redundancy Check (CRC)—A technique used to verify data integrity. It is based on an algorithm which generates a value derived from the number and order of bits in a data string. This value is compared with a locally-generated value and a match indicates that the message is unchanged, and therefore valid. Datagram—A data string consisting of an IP header and the IP message within. dBi—Decibels referenced to an “ideal” isotropic radiator in free space. Frequently used to express antenna gain.
versed process is applied at the other end of the network extracting the data from the IP envelope, resulting in the original packet in the original protocol. Endpoint—IP address of data equipment connected to the ports of the radio. Equalization—The process of reducing the effects of amplitude, frequency or phase distortion with compensating networks. Fade Margin—The greatest tolerable reduction in average received signal strength that will be anticipated under most conditions.
MAC—Media Access Control. MD5—A highly secure data encoding scheme. MD5 is a one-way hash algorithm that takes any length of data and produces a 128 bit “fingerprint.” This fingerprint is “non-reversible,” it is computationally infeasible to determine the file based on the fingerprint. For more details review RFC 1321 using an Internet search. MCU—Microcontroller Unit. MIB—Management Information Base. MIMO—Multiple In / Multiple Out.
ered authenticated when it has agreed with the access point on the type of encryption that will be used for data packets traveling between them. The process of association causes a station to be bound to an access point and allows it to receive and transmit packets to and from the access point. In order for a station to be associated it must first authenticate with the access point. The authentication and association processes occur automatically without user intervention.
SCEP—Simple Certificate Enrollment Protocol. A protocol that automates the provisioning process of creating and loading x.509 digital certificates on a device. SFTP—Secure File Transfer Protocol. A networking protocol used to securely transfer files between a server and a client device. SNMP—Simple Network Management Protocol. SNR—Signal-to-Noise Ratio. A measurement of the desired signal to ambient noise levels.This measurement provides a relative indication of signal quality.
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