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Rohill Technologies R-8070 Manual

Tetranode base station system
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TetraNode Base Station System

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Summary of Contents for Rohill Technologies R-8070

  • Page 1 Confidential Manual TetraNode Base Station System...
  • Page 2 This manual is copyrighted; it may not, in whole or in part, be copied, photocopied, translated, or reduced to any electronic medium or machine readable form without prior consent in writing from Rohill Technologies B.V. Rohill Technologies B.V. / Rohill Engineering B.V.
  • Page 3 Introduction TetraNode Base Station System Change history Version Date Name Changes V1.0 18-11-15 HW team FCC version of manual. FCC warnings added. Issue 1.0, 18 November 2015 Confidential...
  • Page 4 Warnings and Cautions Caution: This manual contains important information concerning installation, maintenance and user instructions for the R-8070 based TetraNode Base Station. Read the following pages before installing or using the equipment. Warning: This Equipment MUST be connected to a SAFETY EARTH.
  • Page 5 Introduction TetraNode Base Station System Warning: If dual power supplies are used for redundancy, ensure warnings are clearly posted on the cabinet and double circuit isolators are provided. Warning: Do not connect equipment-room earth to the same earth used for the tower lightning protection.
  • Page 6 Introduction TetraNode Base Station System Warning: This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 7 They must not be replaced with alternatives nor be manually re-tuned. Caution: 12VDC is present on the receiver inputs of the R-8070. Do NOT short circuit the receiver inputs. Do NOT connect receivers to test equipment without a DC block. Caution: All unconnected connectors should remain unconnected unless otherwise stated by Rohill.

  • Page 8: Table Of Contents

    2.5 Transmitter output power ................12 2.6 TBS-SYN Timing reference ...............13 2.7 Line Interface(s) ..................14 2.8 Environmental ....................15 3 Technical description ..............16 3.1 R-8070 transceiver ..................16 3.1.1 Transceiver User Interface (MMI) ..............16 3.1.2 Transceiver Alarms and Warnings ...............21 3.2 Synchronisation TBS-SYN ................21 3.3 Connections ....................22 3.3.1 R-8070 connections ..................22...
  • Page 9 5.1 General ......................32 5.2 Maintenance policy ...................32 5.3 Maintenance ....................32 6 Troubleshooting ................33 6.1 General ......................33 6.2 R-8070 Alarm messages ................33 7 Specifications ................34 7.1 General transceiver specifications ............34 7.2 Receiver specifications ................34 7.3 Transmitter specifications ................35 Issue 1.0, 18 November 2015...

  • Page 10: Introduction

    A TetraNode Base Station System is designed to provide the radio frequency carriers for one TETRA base site. As standard it consists of one cabinet containing one to four R-8070 transceivers and all the associated cabling, antenna combining, synchronisation unit(s), optional fall-back site controller, line interfacing and optional power supplies.

  • Page 11: System Options

    2.2 Cabinet The standard R-8070 Base Station System (1 to 4 carriers) is supplied in a 1670mm high (32U internal) 19” rack unit. 600x600mm footprint with lockable front and rear doors. Colour light grey (RAL 7047). Front door is solid. Rear door is ventilated (exhaust air) top and lower/middle.

  • Page 12: Frequency Bands

    TetraNode Base Station System The R-8070 transceivers are each supplied from their own AC/DC PSU. For true redundant operation two power supply input connections are required. Normally, each input will power half of the equipment in the rack. BSS Cabinet...

  • Page 13: Tbs-Syn Timing Reference

    TetraNode Base Station System 2.6 TBS-SYN Timing reference The R-8070 site always contains at least one timing reference. This can be either with or without GPS receiver. Note - Seamless handover is only supported when the system is locked to GPS. A second reference is fitted for dual-redundant operation.

  • Page 14: Line Interface(S)

    The standard for connecting TetraNode Base Station Systems to the back-haul network (modems) is Ethernet 10/100baseT. 1 – 2 carrier systems contain one switch. BSS Cabinet Single IP/ Ethernet input R-8070 switch R-8070 Options Fallback controller Simplified diagram Figure 3, 1-2 carriers, FSC option, single switch 3 –...

  • Page 15: Environmental

    TetraNode Base Station System 2.8 Environmental The BSS is designed for operation in a dry weather protected and vibration-free location. Exposure to solar radiation should be limited. High humidity can be tolerated, but MUST be non-condensing conditions. Air conditioning is only required if the performance envelope of the equipment inside the rack would otherwise be exceeded.

  • Page 16: Technical Description

    At power-up the touch-screen MMI will initially show a TetraNode splash screen whilst the carrier is booting up. The display will then directly enter the System Settings sub-screen: Figure 6, R-8070 MMI generic screen layout Issue 1.0, 18 November 2015 Confidential...
  • Page 17 Touching the screen anywhere in the information area will return the user to the top level screen: Figure 7, R-8070 MMI Top-level screen This screen has three navigation buttons and one button (bottom right) to toggle screen-save on/off. When enabled, the display (default) will enter a screen save mode after a time-out period of 60 seconds (10 seconds if after clearing an alarm).
  • Page 18 TetraNode Base Station System The navigation keys correspond to the three sub-screens described below. 3.1.1.2 Menu Map The top level menu (Figure 7) presents three choices. The categories within each of these then operate as a “tab” selection, i.e. the selected sub-sub-category is highlighted with a blue tab-key.
  • Page 19 TetraNode Base Station System Alarm list of alarms & warnings -see section 6.2 STATUS --- Controller uptime (days hours:minutes) Connection (TNSP | IP-Link) TNX (name, description) card temperature (C) Receiver RSSI value (dBm) by time-slot and receiver uplink assignment summary (1 row) scrolling histogram of received data black –...
  • Page 20 TetraNode Base Station System [keypad}, <backspace> and <enter> keys for setting: IP address network mask Default gateway Reset press both buttons (sequentially), within 1 second, to reset the carrier. Caution: Please note that if this soft-button is used during normal operation it will cause an interruption of service to the users.

  • Page 21: Transceiver Alarms And Warnings

    Power and timing-reference cables are <3m to comply with EMC requirements. The TBS-SYN is designed to be powered from one or two R-8070 base station transceivers. The second power cable is only fitted as a special as it is only required by partially redundant systems.

  • Page 22: Connections

    Therefore always ensure good connections and maximise Rx- Tx cable separations. Isolators are built-into 20MHz bandwidth PAs as standard, thus the R-8070 is suitable for multi-Tx sites without supplementary intermodulation protection. Extra isolators are also present in the hybrid or cavity combiners.
  • Page 23 3.3.1.4 Synchronization inputs The reference frequency and synchronization data from the TBS-SYN enters the R-8070 via the SYNC input connector. The spare input is for use in dual- redundant systems. The R-8070 is designed for a (dual) star connection of synchronisation clocks.

  • Page 24: R-855 Tbs-Syn Rear Panel Layout

    TetraNode Base Station System Warning: The protective earths within the TetraNode Base Station should be adequately bonded to the electrical earth of the 19” rack cabinet and NOT to any lightning protection system for transmitter-towers/antennas. 3.3.2 R-855 TBS-SYN rear panel layout Figure 8: TBS-SYN rear panel connector layout Synchronisation outputs 1..16 3.3.2.1 Connector Details...

  • Page 25: Installation And Configuration

    TetraNode Base Station System 4 Installation and configuration The initial alignment and calibration (and if required, factory acceptance testing) of the units is performed in the factory. This section describes the installation after delivery. The cabinets are shipped fully equipped and ready for use. The basic sequence for installation should be: 1.

  • Page 26: Equipment-Room Earth

    4.2 Installation – floor standing cabinets Standard R-8070 Base Station configurations are supplied in a 37.5U 19” floor standing cabinet (600x600mm footprint) with supporting shelves or slide rails. The system components are held in the rack by M6 (pozidrive) screws.

  • Page 27: Ventilation And Cooling

    Ensure the earth is connected first. 4.2.1 Ventilation and cooling Cool air is required at the front/underside of the R-8070 cabinet. Hot air is exhausted at the rear/top. Ensure that hot air is NOT recirculated into the inlet. Sufficient ventilation to remove typically 190 W per carrier (on full power) and worst case 250 W should be provided.

  • Page 28: Earthing

    TetraNode Base Station System Warning: The protective earth point within the TETRA Base Station cabinet should be adequately bonded to the electrical earth of the 19” rack cabinet and NOT to any lightning protection system for transmitter-towers/antennas. Warning: If connecting to floating power supplies take care to minimise touch-currents. Correctly earthed supplies are preferred over floating supplies.

  • Page 29: Dc Power Cables

    4.4 Network Connections IP over Ethernet requires 50 kbps bandwidth per R-8070. In either case, total delay to the TNX should not exceed 20ms. If it does, the system will still work, but PTT delays will be increased. Also ensure that the jitter is kept below 4 ms to minimise buffer sizes.

  • Page 30: Antenna System

    TetraNode Base Station System 4.5 Antenna system 4.5.1 Lightning protection Warning: The reader is advised to seek specialist advice on this subject . Rohill accepts no liability for failure of designs that may be based upon the following advice! DO NOT WORK ON OR TOUCH ANY SYSTEM WHEN LOCAL ELECTRICAL STORM ACTIVITY IS PRESENT.

  • Page 31: Bss Configuration

    For a multi site system the parameters need to be configured to enable handovers. Make sure the site is enabled. 3. Now the R-8070 carriers must be associated with site. Fill in the carrier number and select the channel plan profile. Select the required output power and enable the receivers to be used.

  • Page 32: Maintenance And Replacement

    5.2 Maintenance policy There are NO end-user or distributor serviceable parts within the components of a TetraNode Base Station (such as an R-8070 or R-855 TBS-SYN). Spare parts are complete sub-rack components. Spares holding and support requirements should be negotiated through your Rohill representative.

  • Page 33: Troubleshooting

    6.2 R-8070 Alarm messages The R-8070 executes continuous measurements on critical parameters such as output power and level of linearization (which influences the quality of the transmitted signal). Errors are indicated by means of error codes shown on the front panel of the R-8070.

  • Page 34: Specifications

    TetraNode Base Station System 7 Specifications 7.1 General transceiver specifications Parameter Specification Manufacturer Rohill, http://www.rohill.com Type R-8070 Power supply voltage 18 to 36 V (24 V nominal) Power consumption per carrier 35 W standby (excludes ancillary site equipment) 180 W typical for 40W...

  • Page 35: Transmitter Specifications

    TetraNode Base Station System 7.3 Transmitter specifications Parameter Specification Tx Frequency 350-370; 380-400; 410-430; 450-470; 851-870 MHz Duplex Spacing Variable 4 to 10 MHz reversible, 45 MHz Carrier Spacing 25 kHz Frequency Offset -6,25, 0, +6,25 or +12,5 kHz Modulation Format π/4 DQPSK Data Rate 36 kbps...

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