Aviat Networks MDR2400ET Digital Radio User Manual 862 01881 Iss8 e200602
Aviat Networks Digital Radio 862 01881 Iss8 e200602
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![MDR2400 and MDR5800 User Manual 862-01881 Issue 8 Page 38 5.3.2 Alignment Procedure 1. Locate the far site and point the antenna to the antenna at the far site, as accurately as possible using binoculars or a compass. 2. Connect the multimeter to the RSSI connector on the Outdoor Unit using the supplied RSSI test cable and set the multimeter to measure volts. 3. Check the RSSI level and refer to the figure below for received power level. 4. Align the antenna until the maximum RSSI is attained. 5. Secure the antenna. 6. Measure the RSSI level and record the value (see section 5.7). 7. Compare with the value with that calculated for the link i.e. using the path loss calculation done when planning the link. Typical Version 2 Outdoor Unit RSSI Voltage vs Received Signal Power0.40.60.811.21.4-80 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30Received Signal Power [dBm]Outdoor Unit RSSI Voltage Figure 7. Typical Version 2 MDR5800 OU RSSI Voltage as a function of RF input power level -80 dBm Average 0.436 ± 0.029 V : MIB RSSI 95 ± 1 dBm (see comment below) -30 dBm Average 1.333 ± 0.047 V : MIB RSSI 54 ± 2 dBm (see comment below) The MIB lists a dBm value representative of the received signal level. The value detected is representative of the level that would be measured should a CW signal be input at the Outdoor Unit's Diplexer RF Port - a Spread Spectrum signal will appear to be 20 dB lower. The NMS makes an adjustment for this by using a 20 dB offset (addition to the Indoor Unit MIB-indicated value). The front panel RF Link LED, the Received Signal Strength Indicators (RSSI : on NMS, via SNMP or as an Electrical signal on the Outdoor Unit), Carrier-detect (NMS, SNMP) and Frame Lock (NMS, SNMP) indicators are available to assist with link installation and alignment.](https://usermanual.wiki/Aviat-Networks/MDR2400ET.Manual/User-Guide-251683-Page-38.png)
![MDR2400 and MDR5800 User Manual 862-01881 Issue 8 Page 39 Typical MDR2400 OU RSSI Voltage vs Received Signal Power0.60.811.21.41.61.8-100 -95 -90 -85 -80 -75 -70 -65 -60 -55 -50 -45 -40Received Signal Power [dBm]Outdoor Unit RSSI Voltage Figure 8. Typical MDR2400 OU RSSI Voltage as a function of RF input power level 5.3.3 Set Transmitted Power Level It is good practice to match received power levels by adjusting transmitted powers if co-located systems are being installed. This is important to avoid interference between co-located systems. An attenuator can be fitted between the Outdoor Unit and the antenna if the power level cannot be sufficiently reduced. The dBm output at the OU N-type connector (socket) levels are set via the NMS or using a SNMP Management application.](https://usermanual.wiki/Aviat-Networks/MDR2400ET.Manual/User-Guide-251683-Page-39.png)
![MDR2400 and MDR5800 User Manual 862-01881 Issue 8 Page 42 5.7 MDR Test Record Parameter Unit Site A Site B Frequency channel plan: Transmit Receive Note 1 : C is NOT used for the MDR2400. Note 2 : FCC requirements (U.S. only), page 2. A/B/C/D A/B/C/D If D – List Transmit and Receive Frequencies [MHz] Transmitter output power (Note 2) DBm Receiver input level (ON) Volts Receiver input level (ON) DBm Receiver input level (OFF) Volts Receiver input level (OFF) dBm Calculated input level dBm Fade margin dB Frame Lock indicator Colour Fixed attenuator dB BER-test Hours BER Alarm Indicators Clear (Yes/No) Date Name Signature Performed by Approved by](https://usermanual.wiki/Aviat-Networks/MDR2400ET.Manual/User-Guide-251683-Page-42.png)
![MDR2400 and MDR5800 User Manual 862-01881 Issue 8 Page 98 Object ID Group Object Type Access Description Indoor Units has not reactivated within 5 seconds, the previous (working) 'default' RF parameters are programmed into the respective Outdoor Units. 1.3.6.1.4.1.1316.1.1.1.2.2.9 mdrmteOURateOverride INTEGER read-write Deprecated 1.3.6.1.4.1.1316.1.1.1.2.2.10 mdrmteOUDataRate INTEGER read-write A settable rate that allows a reduced transfer data rate over the RF Link. 1.3.6.1.4.1.1316.1.1.1.2.2.11 mdrmteTxFrequencyCurrent INTEGER read-only This value [MHz] is read back from the Outdoor Unit and defines the transmit frequency of the Outdoor Unit. 1.3.6.1.4.1.1316.1.1.1.2.2.12 mdrmteRxFrequencyCurrent INTEGER read-only This value [MHz] is read back from the Outdoor Unit and defines the receive frequency of the Outdoor Unit. 1.3.6.1.4.1.1316.1.1.1.2.2.13 mdrmteNonAutoBandPlan INTEGER read-write Same as mdrMTEBandPlan setting in this MIB group except “auto recovery” is not enabled - this allows control of the Outdoor Unit frequencies without the “auto recovery” feature attempting to intervene and re-establish setup of an operational RF Link. 1.3.6.1.4.1.1316.1.1.1.2.2.14 mdrmteNonAutoTxFreqPlanD INTEGER read-write Same as mdrTxFrequencyPlanD setting in this MIB group except “auto recovery” is not enabled - this allows control of the Outdoor Unit Plan D frequencies without the “auto recovery” feature attempting to intervene and re-establish setup of an operational RF Link. 1.3.6.1.4.1.1316.1.1.1.2.2.15 mdrmteNonAutoRxFreqPlanD INTEGER read-write Same as mdrTxFrequencyPlanD setting in this MIB group except “auto recovery” is not enabled - this allows control of the Outdoor Unit Plan D frequencies without the “auto recovery” feature attempting to intervene and re-establish setup of an operational RF Link. 1.3.6.1.4.1.1316.1.1.1.2.2.16 mdrmteNonAutoTxPower INTEGER read-write Same as mdrTxPower setting in this MIB group except “auto recovery” is not enabled - this allows control of the Outdoor Unit power level setting without the “auto recovery” feature attempting to intervene and re-establish setup of an operational RF Link. 1.3.6.1.4.1.1316.1.1.1.2.3 mdrmteServiceChannel 1.3.6.1.4.1.1316.1.1.1.2.3.1 mdrmteScDataRate†3 INTEGER read-write Bit rate used across the wayside service channel link. 1.3.6.1.4.1.1316.1.1.1.2.3.2 mdrmteScDataBits†4 INTEGER read-write The data width - can be 7 or 8 bits. 1.3.6.1.4.1.1316.1.1.1.2.3.3 MdrmteScParity INTEGER read-write Serial channel - set to none, odd or even. 1.3.6.1.4.1.1316.1.1.1.2.3.4 MdrmteScStopBits INTEGER read-write The number of stop bits can be set to 1 or 2. 1.3.6.1.4.1.1316.1.1.1.2.3.5 mdrmteScFlowControl INTEGER read-write Either hardware or no flow control is used. 3 Fixed at 115.2kbps in Version 1.00 and 2.00, 2.01, 2.02 IU firmware releases. 4 Serial setting – 8 bits, no parity, 1 stop bit](https://usermanual.wiki/Aviat-Networks/MDR2400ET.Manual/User-Guide-251683-Page-98.png)
![MDR2400 and MDR5800 User Manual 862-01881 Issue 8 Page 99 Object ID Group Object Type Access Description 1.3.6.1.4.1.1316.1.1.1.2.3.6 mdrmteScStatusDump INTEGER read-write Allows the wayside service (serial) channel to be used as a diagnostics port [deprecated]. 1.3.6.1.4.1.1316.1.1.1.2.4 MdrmteGeneral 1.3.6.1.4.1.1316.1.1.1.2.4.1 MdrmteStationName DisplayString read-write The station name is stored in the Indoor Unit in non-volatile memory - limited to 14 characters in length. 1.3.6.1.4.1.1316.1.1.1.2.4.2 mdrmteIUSerialNumber DisplayString read-only An electronic serial number is read from the Indoor Unit - this number is unique for each IU and is derived from an IC that is used within the product. 1.3.6.1.4.1.1316.1.1.1.2.4.3 mdrmteIUFirmwareVersion DisplayString read-only The Indoor Unit firmware version is the version of application firmware that loaded into the product's application Flash. 1.3.6.1.4.1.1316.1.1.1.2.4.4 mdrmteIUBootkernelVersion DisplayString read-only The Indoor Unit bootkernel version is the version of boot firmware that loaded into the product's Boot Flash. 1.3.6.1.4.1.1316.1.1.1.2.4.5 mdrmteOUSerialNumber INTEGER read-only The Outdoor Serial Number is programmed into the OU at time of manufacture and is read via the Indoor Unit. 1.3.6.1.4.1.1316.1.1.1.2.4.6 MdrmteOUPICFirmwareVersion DisplayString read-only The Outdoor Unit PIC firmware number is programmed into the OU at time of manufacture and is read via the Indoor Unit. 1.3.6.1.4.1.1316.1.1.1.2.4.7 mdrmteOUPayloadSupport INTEGER Deprecated. 1.3.6.1.4.1.1316.1.1.1.2.4.8 mdrmteDate DisplayString read-write This is a date record that is recovered from the Indoor Unit's Real Time Clock. 1.3.6.1.4.1.1316.1.1.1.2.4.9 mdrmteTime DisplayString read-write This is a time record that is recovered from the Indoor Unit's Real Time Clock. 1.3.6.1.4.1.1316.1.1.1.2.4.10 mdrmteNOVRAMInit INTEGER read-write If activated, the Nonvolatile memory is initialised to a set of default parameters. 1.3.6.1.4.1.1316.1.1.1.2.4.11 mdrmteFECBypass INTEGER read-write This is primarily a laboratory test entry used to control whether the FEC circuitry within the Indoor Unit is activated. By default the FEC is not bypassed i.e. FEC is active. 1.3.6.1.4.1.1316.1.1.1.2.4.12 mdrmteFECCorrectableSymbols INTEGER read-write This is primarily a laboratory test entry used to control the FEC correction power - 20 parity symbols are appended to the transmit packet - 10 is the maximum number of symbols the FEC circuitry can correct. At a maximum, 20 symbols in error can be detected but only 10 can be corrected - the higher the correction power selected, the greater the improvement in system gain. 1.3.6.1.4.1.1316.1.1.1.2.4.13 mdrmteTribCode DisplayString read-write This is a text entry code (16 characters) used to allow activation of tributaries on the Indoor Units. It is unique to the Indoor Unit based on a hardware-dependent serial number in the IU. 1.3.6.1.4.1.1316.1.1.1.2.4.14 mdrmteIndoorUnitBarCodeNumber† DisplayString read-write This is a text entry code used to allow storage of the Indoor Unit's bar code serial number (as seen on the outside of the on the outside of product's housing).](https://usermanual.wiki/Aviat-Networks/MDR2400ET.Manual/User-Guide-251683-Page-99.png)
