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MDS LEDR 1400F, Installation & Operation Manual

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MDS LEDR 1400F Installation & Operation Manual Download Page 57

MDS 05-3627A01, Rev. D

LEDR Series I/O Guide

49

ais 

Alarm Indication Signal 

Usage:

 ais [linelist] [-g <on|off>] [-f <on|off>]

This command enables or disables alarm signal generation [

-g

] and for-

warding [

-f

] on specified E1/T1 interface lines. When generation is 

enabled, fault conditions within the link or at the line interface will cause 
the appropriate AIS/RAI signaling to occur. When forwarding is 
enabled, AIS/RAI signaling at the line interfaces will be detected and 
passed to the other end of the link.

Command Example: 

ais -f on -g on

Returns: 

AIS on RAI on

NOTE:

For protected configurations and full-rate radios, disable the
alarm generation through the use of the 

ais -g off

 command.

Background on AIS command:
In fractional operation, the radio extracts the required timeslots and data 
at the input to a link, and reconstructs the full frame at the output end. 
The 

AIS -g (generation)> 

command, when enabled, allows the radio to 

override the frame reconstruction process in order to generate a proper 
all-ones alarm signal. For example, modem loss of synchronization will 
cause all-ones to be transmitted from the active G.703 ports. When 

AIS -g 

is disabled, the output will consist of a framed signal with all-ones in the 
active timeslots. In Fractional operation, AIS generation also creates a 
yellow alarm/RAI back to the defective source when a problem is found 
at the input. In FE1 mode, when 

AIS -g 

is enabled, loss of Multi-Framing 

Alignment Sequence (MFAS) at the line receiver will generate a 
Multi-frame Yellow Alarm (MYEL) or Multi-frame Remote Alarm 
Indication (MRAI) at the line transmitter.

AIS <-f (forwarding)>

 is the act of detecting a condition at the input and 

causing an appropriate response at the other end. For example, with for-
warding enabled, an all-ones signal applied at one end causes all-ones to 
be output at the other. A Remote Alarm Indication (RAI) applied will 
likewise appear at the opposite end. Disabling the forwarding function 
limits the presentation of alarm signaling to the active timeslots at the 
remote end. It is recommended that the 

ais -f on 

or

 ais --g on 

command be 

used for Fractional operation, to enable alarm generation and for-
warding.

In full-rate modes, the radio will always output AIS when the unit is 
unlocked—received radio signal is lost. When the modem is locked, and 
the input is removed from one end, you will get all-zeros at the other end 
unless AIS generation is enabled. Yellow alarms/RAI are not generated 

E1

FT1

FE1

Summary of Contents for LEDR 1400F

Page 1: ...peration Guide P N 05 3627A01 Rev D JANUARY 2003 Covering LEDR 400S F 700S 900S F 1400S F Models Including Protected 1 1 and Space Diversity Versions LEDR Series Digital Microwave Radios Microwave Dat...

Page 2: ...configured as DCE 3 Apply DC power to the radio Verify that the line voltage matches the power supply input range typically 24 Vdc or 48 Vdc The power connector is a three pin keyed connector The powe...

Page 3: ...ine Selection 10 Antennas 10 Feedlines 11 3 4 Radio Mounting 13 Maximizing RSSI 13 Attaching the Rack Mounting Brackets 13 3 5 Front Panel 14 Indicators Text Display and Navigation Keys 14 Connectors...

Page 4: ...ont Panel LCD Menu Descriptions 32 CONSOLE 32 Default Screen 32 Diagnostics 32 Front Panel 33 G 821 33 General 34 IO Configuration 35 Line Configuration 36 Login 38 Logout 38 Modem 38 Network 39 Order...

Page 5: ...99 9 0 USING ORDERWIRE 99 9 1 Introduction 99 9 2 Setup 99 9 3 Operation 100 9 4 Related NMS Commands 101 10 0 USING THE SERVICE CHANNEL 101 10 1 Concept 101 10 2 Setup 101 10 3 Usage 102 10 4 NMS Com...

Page 6: ...formance 115 14 3 Configurable Parameters 116 Timeslots and Framing 116 Line Codes 116 Diagnostics 117 Clocking 117 14 4 Field Installation of the FT1 Interface Board 117 15 0 INCREASE BANDWIDTH BY CH...

Page 7: ...y other companies used in this publication are acknowledged to be property of the holder Antenna Installation Warning 1 All antenna installation and servicing is to be performed by qualified technical...

Page 8: ...n this band take precautions to prevent the radio from transmitting between 406 to 406 1 MHz RF Emissions This equipment has been tested and found to comply with the limits for a Class A digital devic...

Page 9: ...try standard G 703 T1 data interface equipment See Page 115 for a complete description of the Fractional T1 Fractional E1 and Full Rate E1 options All LEDR Series radios with the exception of the 700S...

Page 10: ...1 Protected Operation 1 1 Compatible 1 0 Watt Transmit Power Space Efficient Rack Size 1RU Rugged Reliable Design Voice Orderwire DTMF compliant Service Channel Data Subrate Models LEDR 400S 700S 900S...

Page 11: ...EDR radios are monitored and controlled by a third unit the Protected Switch Chassis shown in Figure 2 This unit provides a gateway for data and radio frequency paths to the LEDR data radio transceive...

Page 12: ...radios PROTECTED STANDBY N None W Warm H Hot With Modes N 2 With Modes 3 8 L L L LE E E ED D D DR R R R 4 4 4 40 0 0 00 0 0 0 CLASS S Subrate F Fullrate DUPLEXER N None Optional External 1 300 400 MHz...

Page 13: ...z None 4 9 MHz Internal Redundant 5 3 6 MHz External Redundant 6 76 MHz Internal Redundant 7 9 MHz Internal Space Diversity 8 3 6 Mhz Internal Space Diversity 9 76 MHz Internal Space Diversity Only av...

Page 14: ...Fractional E1 3 1 1 EIA 530 4 Not Used 5 1 1 E1 Fractional E1 6 Space Diversity EIA 530 7 Not Used 8 Space Divers E1 Frac E1 Available in subrate radios CLASS S Subrate F Fullrate BANDWIDTH A 25 kHz B...

Page 15: ...al should be reviewed before beginning the radio hardware equip ment installation When the radio installation is successfully complete you will need to address the data interface and operational confi...

Page 16: ...ing that an unobstructed transmission path exists Microwave radio signals travel primarily by line of sight and obstructions between the sending and receiving stations will affect system performance I...

Page 17: ...llation site The test can be performed by installing a radio at each end of the pro posed link and checking the Received Signal Strength Indication RSSI value reported at the front panel LCD screen of...

Page 18: ...tional 20 dB or more of attenuation to interference can be achieved by using opposite antenna polarization Refer to the antenna manufacturer s instructions for details on changing polarization 3 3 Ant...

Page 19: ...n paths we rec ommend using a low loss cable suited for the frequency band of opera tion Helical transmission lines such as Andrew Heliax or other high quality cable will provide the lowest loss and s...

Page 20: ...2 4 Meters 500 Feet RG 8A U 0 7 dB 3 4 dB 6 8 dB 34 0 dB 1 2 in HELIAX 0 2 dB 1 0 dB 1 9 dB 9 5 dB 7 8 in HELIAX 0 1 dB 0 5 dB 1 1 dB 5 3 dB 1 1 4 in HELIAX 0 1 dB 0 4 dB 0 8 dB 3 9 dB 1 5 8 in HELIAX...

Page 21: ...n on the LCD screen See Performance on Page 40 for details A maximum RSSI ensures the antenna is properly aimed at the associated station Move the antenna slowly while an assistant observes the RSSI d...

Page 22: ...n the right side of the front panel to control the radio s operation and access diagnostic information Use of the navigation keys Figure 9 is simple and allows many basic operating tasks to be perform...

Page 23: ...ordi nate menus The key allows entry into each primary menu s subordinate menus exposing another menu level The key always exits the cur rent screen causing the program to pop up one level in the hier...

Page 24: ...while you are in the editing selection mode If you are asked to select or change more than one character you will see a horizontal scroll symbol in the bottom right hand corner of the display and a cu...

Page 25: ...nector Locations LEDR S Series The rear panel of the LEDR S Series radios is shown in Figure 11 Refer to the descriptions that follow for specific information regarding rear panel connections Invisibl...

Page 26: ...s used it acts as the trans mitter RF output TX connector to the duplexer RX RF Connector The RX receive connector is an N type coaxial connector It is only installed if the radio is supplied for use...

Page 27: ...gement interface The connector is a standard 10Base T connection with an RJ 45 mod ular connector The LEDR Ethernet connections are provided for remote equipment management NMS Ethernet in a Repeater...

Page 28: ...detailed pin information see EIA 530 A Data Rear Panel on Page 128 NOTE This connector is not operational on LEDR F Series fullrate models Service Channel The Service Channel provides a transparent AS...

Page 29: ...ol of an external device or indicator when a radio event occurs An alarm output could be used for example to sound a claxon when the radio link goes down or when the battery for the real time clock is...

Page 30: ...information DC Power Input Primary Power The DC POWER INPUT connector is a three pin keyed connector used to connect an external DC power source A label next to the power con nector indicates the nomi...

Page 31: ...our radio s bandwidth please see INCREASE BANDWIDTH BY CHANGING TRANS MITTER AND RECEIVER FILTERS on Page 120 for details Use of the modem command Page 71 and configuration argument code automatically...

Page 32: ...l lo o o oc c c ck k k k M M M Mo o o od d d de e e e screen description on Page 35 for setting the radio transmit clocking from the front panel Refer to the clkmode description on Page 55 for setting...

Page 33: ...s There is no primary power switch simply connecting primary power to the unit will start the radio operating After a short self test a default screen similar to the following appears on the radio s L...

Page 34: ...guration performance and user access require ments of the LEDR radio system A separate manual MDS P N 05 3532A01 explains SNMP in more detail 4 4 STEP 3 Make Initial Login to Radio When the radio is f...

Page 35: ...gged in You may now access any of the NMS commands listed in Table 15 on Page 45 with Administrator level privileges the highest allowable user level 4 5 STEP 4 Change the SUPER Password The factory p...

Page 36: ...del group and configuration Table 12 Essential Parameters for Standalone Protected Model Group Data Interface Parameter Setting Subrate EIA 530 RF TX RX Frequency Factory configured for customer frequ...

Page 37: ...alarm mappings using the alarm command Page 50 Set event mappings using the evmap command Page 58 Set alarm thresholds using the threshold command Page 83 Set the SNMP community using the snmpcomm com...

Page 38: ...ag g g gn n n no o o os s s st t t ti i i ic c c cs s s s L L L LE E E ED D D DR R R R L L L Li i i in n n nk k k k O O O Or r r rd d d de e e er r r rw w w wi i i ir r r re e e e L L L LE E E ED D D...

Page 39: ...pressed to enter the edit mode Use the keys to scroll through all available characters Press the key again to save the displayed character in displayed location ENTER ENTER ENTER R R R RE E E ES S S...

Page 40: ...anslate any line mapping to select the correct physical remote port to loop back based on the selected local port When conducting RF loopback testing see Page 69 loopback NMS command for additional in...

Page 41: ...vailable Seconds as the period of time following a period of 10 consecutive seconds each of which has a BER of less than 1x10 3 This screen shows the unavailable seconds of the radio link The G 821 st...

Page 42: ...l l ly y y y E E E Er r r rr r r re e e ed d d d 0 0 0 0 R R R Re e e es s s se e e et t t t G G G G 8 8 8 82 2 2 21 1 1 1 N N N NO O O O U U U Un n n ni i i it t t t I I I ID D D D 0 0 0 00 0 0 00 0...

Page 43: ...upport CAS Consult the factory if you require this service This screen is used to set or display the current span mapping configu ration The entry consists of from 1 to 4 alpha numeric characters spec...

Page 44: ...nd passed to the other end of the radio link C C C Ch h h ho o o oo o o os s s se e e e L L L Li i i in n n ne e e e 1 1 1 1 L L L LI I I IN N N NE E E E1 1 1 1 For the NMS command line equivalent see...

Page 45: ...et 533 to 655 feet L L L Li i i in n n ne e e e C C C Co o o od d d de e e e 1 1 1 1 A A A AM M M MI I I I For the NMS command line equivalent see linecode on Page 66 R R R Re e e ef f f fr r r ra a a...

Page 46: ...frames blocks could not be corrected by the radio s FEC capability This menu shows the current bit error rate BER of the LEDR radio L L L LE E E ED D D DR R R R L L L LI I I IN N N NK K K K L L L Lo...

Page 47: ...efault IP port for networking con nections to the LEDR radio The Ethernet selection is used for cable con nection to a Local Area Network LAN or repeater via the radio s rear panel ETHERNET connector...

Page 48: ...Output PA Temperature Power amplifier temperature The RSSI display indicates the strength of the radio signal being received by the radio The measurement is in dBm Therefore an RSSI of 80 dBm is stron...

Page 49: ...t or display whether the currently selected radio is the active unit This screen is used to set or display the radio s redundancy mode The available selections are 1 1 HOT redundant hot standby 1 1 WA...

Page 50: ...itchover to the non active radio trans ceiver The newly selected unit becomes the active transceiver Remote Status This screen is used to set or display the unit identification for the remote radio RF...

Page 51: ...ormation It is the most common way to access the LEDR radio for its initial configuration The CONSOLE Port is an EIA 232 connection that provides ASCII text communications to a con nected terminal Mos...

Page 52: ...S Commands Once you are successfully logged in the Network Management System NMS commands shown in Table 15 are available at the command line prompt LEDR Note that some commands are model and or featu...

Page 53: ...the radio s piezo buzzer to test its operation Page 54 clkmode Set display data clocking mode Page 55 coffset Displays modem carrier frequency offset in Hz Page 56 con Set display CONSOLE Port communi...

Page 54: ...lear send event log information Page 67 login Console user level access Page 68 logout Console user exit Page 69 loopback Set display loopback modes Page 69 model Display radio model number Page 71 mo...

Page 55: ...est Runs self test of LEDR hardware Page 82 threshold Set display performance degradation threshold s Page 83 time Set display system time Page 84 timeslot Selects which timeslots to transmit for a sp...

Page 56: ...of the command and changes the basic command Angle brackets contain arguments The arguments are values needed to carry out the command such as a frequency value or option Some commands are limited to...

Page 57: ...AIS g is disabled the output will consist of a framed signal with all ones in the active timeslots In Fractional operation AIS generation also creates a yellow alarm RAI back to the defective source w...

Page 58: ...the evmap command Page 58 When mapped to events the active level may repro grammed to be either active open or active closed Active means that an event is mapped to an external alarm output that is cu...

Page 59: ...radio This function allows you to signal a radio and alert someone that the Order wire handset should be picked up The three digit number following the command indicates the unit ID of the radio that...

Page 60: ...bert is used for diagnostic purposes by causing the selected line of the FT1 E1 interface port lines to output a user selectable pseudo random bit sequence either framed or unframed This command also...

Page 61: ...o 6 Unframed 2 20 with 14 zero limit QRSS QRS QRTS No 7 Unframed 2 23 with 14 zero limit non standard No 8 Framed 2 11 No 9 Framed 2 15 Yes 10 Framed 2 20 No 11 Framed 2 23 Yes 12 Framed 2 11 with 7 z...

Page 62: ...command s configuration boot Boot from Active Archive Software Usage boot 1 2 s o This command is used to view or change the radio s active software image If boot is entered alone the currently activ...

Page 63: ...to RC RC is derived from far end of radio link Note Do not use looped clocks at both ends of any radio link extdce ETC and ERC are accepted as inputs on the EIA 530 interface NOTE Earlier versions of...

Page 64: ...isplayed using the parity subcommand The default setting is 9600 bps no parity 8 data bits and 1 stop bit config Configuration Usage config get send getall filename console hostIP This command is used...

Page 65: ...date format 1 3 Date Format 1 mm dd yyyy All numbers Date Format 2 dd mm yyyy All numbers Date Format 3 dd MON yyyy English abbreviation of month Example Response date 07 JUN 1999 08 11 30 dtmf Dual...

Page 66: ...the alarm events but they cannot be deleted nor can new ones be created The subcommands specify which output will be asserted led or aout upon occurrence of an event Multiple outputs can be specified...

Page 67: ...00 Hz fstruct Frame Structure Usage fstruct linelist mode 0 7 none This command is used to set or display the span s frame structure The linelist variable represents a list of line interfaces This ent...

Page 68: ...formation avail able seconds errored seconds severely errored seconds and unavail able seconds Example Response Demodulator ERROR FREE Savail 1036 Sunavail 0 ES 0 SES 0 group Group Number in LEDR Syst...

Page 69: ...radio s Ethernet port help or User help Usage help or This command can be used alone to list all available commands or with a specific command to provide syntax assistance Entering help before or afte...

Page 70: ...ed to program information into or clear it from radio memory that is particular to the radio site or installation The infor mation is intended for identification and memorandum needs Five text fields...

Page 71: ...le Response interleave 1 Background In digital communications interference often occurs in the form of short noise bursts These bursts normally corrupt a series of consecutive bits Interleaving is a d...

Page 72: ...fy image 1 2 app dsp fpga scripts This command is used to determine the data integrity of the two firm ware image files that reside in the radio See also icopy above Example Response iverify Image has...

Page 73: ...line linelist cable length 0 4 spec T1 interfaces require setting of a minimum of two variables ITU cable specification and cable length Table 21 shows the specification options and Table 22 lists val...

Page 74: ...ge of line numbers i e 1 4 or if linelist is not given all lines will be displayed See Table 19 on Page 59 for a list of line numbers The most typical Fractional T1 selection is to choose B8ZS for all...

Page 75: ...es a range of line numbers i e 1 4 or if linelist is not given all lines See Table 19 on Page 59 for a list of line numbers The namelist variable consists of a list of names It can consist of a single...

Page 76: ...to the config command See config command on Page 56 NOTE When setting up a link for the first time after powering up the unit you may want to clear the event log After logging in as SUPER enter the c...

Page 77: ...loop back all data at the remote site towards the RF path use loopback remote Entering loopback without any parameters displays the current loopback mode Usage 1 for Fractional T1 loopback none rf loc...

Page 78: ...RF output setting may resolve these problems Also in some configura tions insufficient signal strength for RF loopback testing may exist In addition on all LEDR radios except the LEDR 1400 Series the...

Page 79: ...nk codeword Example 000111 within 16 bit codeword 0 000111 0 11111111 model Radio Model Number Usage model This command displays the radio model number This information is programmed at the factory an...

Page 80: ...modem cas on and modem cas off This command provides for FT1 Robbed Bit Signaling bits to pass over the link In the FE1 case this command in conjunction with the fstruct command ensures the proper han...

Page 81: ...onse PING 10 2 233 12 56 data bytes 64 bytes from 10 2 233 12 seq 1 ttl 255 rtt 49ms 64 bytes from 10 2 233 12 seq 2 ttl 255 rtt 6ms 64 bytes from 10 2 233 12 seq 3 ttl 255 rtt 9ms 64 bytes from 10 2...

Page 82: ...dio Read Set hitless Sets or displays the hitless error free switching status of the receivers It can be enabled or disabled using the hitless on off command In protected operation either receiver reg...

Page 83: ...adios in order for the swxcvr command to operate correctly NOTE The rdnt swxcvr command should not be used within 2 minutes of a power up to ensure reliable communications exist between the two transc...

Page 84: ...his command starts the RFOUT Calibration Sequence and should only be used when directed by MDS factory personnel CAUTION This command is used to recalibrate the internal transmitter power output meter...

Page 85: ...lf Discovery Routing IP traffic to other devices via the radio s management channel can be per formed by adding routes to the radio s routing table Once the IP configuration is set using the ip comman...

Page 86: ...e to be associated with this route entry gateway Specifies gateway IP address port Specifies IP port either ETH or AIR Example 1 Entry LEDR route add 10 2 150 1 mask 255 255 255 255 10 2 150 101 air E...

Page 87: ...well as the target and gateway IP addresses At both ends the command used is exactly the same see command Example 1 above In the command example given above the route is being added at the gateway end...

Page 88: ...ain 104 Index 1 RSSI 90 dbm Gain 40 Index 2 RSSI 75 dbm Gain 1 Index 3 RSSI 60 dbm Gain 28 Index 4 RSSI 45 dbm Gain 61 Index 5 RSSI 30 dbm Gain 97 rxlock Receiver locked onto Remote radio Usage rxlock...

Page 89: ...read public snmpcomm write private snmpcomm trap public snr Signal to Noise Ratio of Incoming RF Signal Usage snr This command displays the signal to noise ratio SNR of the received signal in dB The...

Page 90: ...ssion Usage telnetd kill session This command is used to display or kill terminate the current Telnet session s Entry Example telnetd Response Session Username Rem Addr Connected tns0 ENGR 10 2 129 22...

Page 91: ...threshold coffset 0 threshold temp 110 threshold 15mines 900 threshold 15minses 900 threshold 24hres 86400 threshold 24hrses 86400 rssi dBm level below which an RSSI alarm is generated snr Value below...

Page 92: ...are committed made active The timeslots may be different at each end of the link They will be monotonically mapped that is Slot 1 is mapped to Slot 13 Slot 2 is mapped to Slot 14 etc To select timesl...

Page 93: ...t 0 is always selected When frame struc tures are selected that contain CAS fstruct 4 7 timeslot 16 must be selected trapfilter Trap Filtering for SNMP Usage trapfilter critical major minor inform Thi...

Page 94: ...icates the trans mitter is not keyed unitid Unit Identification Number for Orderwire and NMS Usage unitid ID This command sets or displays the radio s unit identification number This number is used fo...

Page 95: ...person responsible for the radio system Example entry user add fieldserv secret w The above example shows the command string for adding a new user fieldserv with write permission and a password of sec...

Page 96: ...order wire microphone will key the transmitter NOTE When the orderwire microphone is spoken into the audio will be heard by all LEDR radios in the network which currently have a handset plugged into...

Page 97: ...e Evmap led 86 none Evmap led 87 none Evmap led 88 none Evmap led 89 none Evmap led 90 none Evmap led 91 none Evmap led 92 none Evmap led 93 none Evmap led 94 none Evmap led 95 none Evmap led 96 none...

Page 98: ...arm Evmap led 78 ioalarm Evmap led 79 ioalarm Evmap led 80 ioalarm Evmap led 81 ioalarm Evmap led 82 ioalarm Evmap led 83 ioalarm Evmap led 84 ioalarm Evmap led 85 ioalarm Evmap led 86 ioalarm Evmap l...

Page 99: ...IP address of the PC running the TFTP server Finding IP Addresses To determine the IP address of aWindows NT 2000 XP computer select Run from the Start menu and enter cmd At the cmd prompt type ipcon...

Page 100: ...LE Port enter config getall radio_1 txt 1 2 3 4 At radio 2 CONSOLE Port enter config getall radio_2 txt 1 2 3 4 etc 7 3 Setup Through the DB 9 CONSOLE Port You have the option of sending the configura...

Page 101: ...the ETHERNET Port 3 Remotely over a network connection using TFTP and Telnet to the ETHERNET Port The procedures that follow use one or both of two utilities found in MDS LEDR Utilities package These...

Page 102: ...lity application 2 From the View Options menu select the appropriate COM Port and baud rate Ensure that autobaud is enabled Look in the lower right hand corner of the Flash Utility window 3 From the V...

Page 103: ...verify command above 4 Once the radio has rebooted and Flash Utility screen displays the LEDR prompt the firmware can be downloaded or copied into the other image Often copying the firmware from one i...

Page 104: ...P TFTP server you should execute the set root command and point to the known directory where ledr mpk has been copied 3 Launch your Telnet application and login to the radio which you desire to load r...

Page 105: ...k 2 Once the image has been verified the radio must be rebooted using the new firmware This is done by entering the command boot 1 or boot 2 where the 1 or 2 corresponds with the image number used wit...

Page 106: ...The download can be monitored from the radio by entering reprogram status When the download is complete the radio will sound two short beeps and the response from reprogram status will indicate that...

Page 107: ...use The Orderwire uses voice compression technology that introduces a slight but notice able delay in Orderwire audio The orderwire will not interrupt the normal data flow through the LEDR data commun...

Page 108: ...smission The transmit ter will be dekeyed when you stop speaking The VOX level must be properly set for this function to work See vox on Page 88 5 Alternatively a DTMF style handset can be used to dia...

Page 109: ...e data will always be sent to every radio on the network No other radio will be allowed to transmit until the current sender is finished If a radio does receive data in the Service Channel Port while...

Page 110: ...its char length and parity via the svch subcommands so that the settings match those at the device connected to the Service Channel Port Lastly the user can re initialize the Service Channel port via...

Page 111: ...against failure in any of the LEDR radio sub systems Failures can be either malfunction or external environmental effects such as multipath fading or nearby light ning strikes A Protected station con...

Page 112: ...itch Chassis is a gateway for data coming and going between each of the LEDR radio units and the common data circuits connected to the PSC The PSC monitors various RF and data signal paths for predefi...

Page 113: ...ath is powered However upon transmitter failure the switchover takes longer due to the transmitter having to be powered up In a hot standby link the standby transmitter is powered up at all times and...

Page 114: ...om connector is for Radio B For pinout information please consult the factory Replace ment cables are available from MDS P N 03 3837A02 E1 This is a block of four RJ 45 modular connectors for connecti...

Page 115: ...h LEDR radios In the protected radio con figuration the Service Channel connectors on the radios are non func tional For detailed pin information see Service Channel Rear Panel on Page 129 11 5 Inter...

Page 116: ...g param eters DO NOT USE IN PROTECTED CONFIG TX External Data Interface EIA 530 A Ethernet NMS Service Channel Alarm I O DC Power Input EIA 530 A Ethernet NMS Data Interface Service Channel Alarm I O...

Page 117: ...be repeated for each radio in the protected pair 1 Configure the protected mode to hot standby LEDR rdnt mode 1 rdnt mode 1 1 Hot Standby LEDR 2 Configure the IP address of each radio LEDR ip address...

Page 118: ...efer to the clkmode description on Page 57 for setting the radio transmit clocking mode from the CONSOLE Port NOTE When customer premises equipment CPE is operated in looped clock mode it is recommend...

Page 119: ...and select that path without inducing any additional bit errors into the link Space diversity is especially effective in changeable multi path environ ments such as over tidal water paths Since water...

Page 120: ...R B TX RX RX ANT DO NOT USE IN PROTECTED CONFIG TX External Data Interface EIA 530 A Ethernet NMS Service Channel Alarm I O DC Power Input EIA 530 A Ethernet NMS Data Interface Service Channel Alarm I...

Page 121: ...EIA 530 A Ethernet NMS Service Channel Alarm I O DC Power Input EIA 530 A Ethernet NMS Data Interface Service Channel Alarm I O DC Power Input TO ETHERNET HUB SERVICE CHANNEL For both radios RX TX Ex...

Page 122: ...01 E1 FE1 Data Interface PCB LEDR 400F LEDR 400S LEDR 900F LEDR 900S LEDR 1400F LEDR 1400S 03 3846A02 Subrate Data Interface PCB LEDR PSC 03 2824A01 Fullrate Data Interface PCB LEDR PSC 03 3539A01 Tab...

Page 123: ...erface allows the LEDR radio to be connected directly with a G 703 T1 or E1 interface The line rate of the interface operates at the T1 rate of 1 544 Mbps or E1 rate of 2 048 Mbps Twelve user selectab...

Page 124: ...not be reordered Alarm signals RAI and AIS are generated as appropriate The user may optionally have these signals forwarded over the RF link The frame formats available for Fractional T1 operation ar...

Page 125: ...ble for network loopback and internal timing with secondary selections available should the primary source become faulty Refer to the discussion of the clkmode command Page 55 for more information 14...

Page 126: ...onnectors engage 7 Install the Phillips mounting screws with lockwashers on the top of the FT1 board For protected versions only Install the plastic clip if supplied at the right rear corner of the In...

Page 127: ...s I O Guide 119 Invisible place holder Figure 29 View of Radio PC Board Showing Installation Details for FT1 FE1 Interface Board J912 J913 REAR PANEL OF LEDR RADIO Installation Area for Interface Boar...

Page 128: ...ey To realize the full benefit of the increased RF bandwidth it may be nec essary to upgrade the radio s data interface Table 1 on Page 1 provides a simplified listing of radio bandwidth and compatibl...

Page 129: ...at the new filter is installed in the same orientation as the original unit Invisible place holder Figure 30 Location of Bandwidth Filters FL600 FL601 and FL700 5 Locate and remove Filters FL600 and F...

Page 130: ...ed If an alarm is present double check all cable connections and radio set tings 16 0 BENCH TESTING OF RADIOS In some cases it may be necessary to test the operation of the equipment in a bench settin...

Page 131: ...ely when less than the channel s capacity is utilized by the timeslot command configuration 17 0 TECHNICAL REFERENCE 17 1 Specifications Models LEDR 400S 700S 900S and 1400S General Frequency Ranges 3...

Page 132: ...rwire Voice handset interface DTMF capable Service Channel RS 232 9600 bps Ethernet 10 Base T Console Port RS 232 9600 bps to 115200 bps Alarms 4 programmable outputs 4 inputs Antenna 50 Impedance Net...

Page 133: ...6 QAM QPSK Forward Error Correction FEC Reed Solomon Acquisition Time Typical From power up 10 seconds Voltage Range 24 Vdc or 48 Vdc 20 Power Consumption Less than 60 watts non protected configuratio...

Page 134: ...neral Alarm Rx Alarm Tx Alarm I O Alarm Via Front Panel LCD Display Measurements of RSSI RF Power Signal to Noise ratio BER Data Loopback Local and Remote Agency Approvals LEDR 1400F Transmission ETS...

Page 135: ...vance notice or obligation to any person 17 6 I O Connector Pinout Information Orderwire Front Panel Invisible place holder Figure 32 Orderwire RJ 11 Connector CONSOLE Port Front Panel Invisible place...

Page 136: ...Received Line Signal Detector A Signal Ground DCE Ready A Clear to Send A Request to Send A Received Data A Transmitted Data A Shield Return Return Return Return Return DCE Common DCE DCE DTE DCE DTE...

Page 137: ...nector DB 9 Female Pinout See See Alarm I O on Page 21 for parameters 17 7 Watts dBm Volts Conversion Table 32 is provided as a convenience for determining the equivalent voltage or wattage of an RF p...

Page 138: ...0mW 1 200 80mW 2 180 64mW 3 160 50mW 4 141 40mW 5 125 32mW 6 115 25mW 7 100 20mW 8 090 16mW 9 080 125mW 10 071 10mW 11 064 12 058 13 050 14 045 15 040 16 0355 dBm mV Po 17 31 5 18 28 5 19 25 1 20 22 5...

Page 139: ...nent region checksum failed NONE INFORM 9 APP1_REGN_CHECKSUM Application 1 checksum failed NONE INFORM 10 APP2_REGN_CHECKSUM Application 2 checksum failed NONE INFORM 11 BOOT_REGN_CHECKSUM Boot loader...

Page 140: ...gnal or equipment failure RXALARM CRITICAL 32 SOFTWARE_TX_OFF Software command has unkeyed the radio TXALARM CRITICAL 33 RTC_NOT_SET The real time clock is not programmed NONE MINOR 34 IO1_DIG_LOC_lOO...

Page 141: ...ICAL 49 INACTIVE_ON Current radio transceiver is in standby mode when in protected radio chassis ALARM MAJOR 50 NO_OPTION_UNIT No Option Card is detected NONE INFORM 51 VOCODER_INIT_ERR The voice proc...

Page 142: ...69 OPT_MUX_LOOBACK Option card multiplexed data path from Line s is looped back NONE INFORM 70 IO1_REM_LOOPBACK_SERV Radio is server for remote radio loopback mode with its payload data at Line IO 1 l...

Page 143: ...alarm I O ALARM INFORM 84 IO1_RECVR_LCV Line IO 1 receiver detected Line Code Violation alarm I O ALARM INFORM 85 IO1_RECVR_CRC Line IO 1 receiver detected CRC alarm I O ALARM INFORM 86 IO1_RECVR_FBI...

Page 144: ...I O ALARM CRITICAL 102 IO3_RECVR_ALOS Line IO 3 receiver Loss of analog signal alarm I O ALARM CRITICAL 103 IO3_RECVR_AIS Line IO 3 receiver detected AIS alarm I O ALARM CRITICAL 104 IO3_RECVR_RAI Lin...

Page 145: ...ames I O ALARM CRITICAL 120 IO4_RECVR_COFA Line IO 4 receiver detected Change of Frame Alignment alarm I O ALARM CRITICAL 121 IO4_RECVR_MAIS Line IO 4 receiver detected multi framed AIS alarm I O ALAR...

Page 146: ...ers for product assistance 585 241 5510 Phone 585 242 8369 FAX 130 IF_SYNTH_LOCK Intermediate Frequency IF synthesizer out of lock TXALARM RXALARM CRITICAL 131 OPT_FPGA_LOAD Option Card Field Programm...

Page 147: ...of the shipping box and on any correspondence relating to the repair No equipment can be accepted for repair without an SRO number A statement should accompany the radio describing in detail the troub...

Page 148: ...140 LEDR Series I O Guide MDS 05 3627A01 Rev D...

Page 149: ...adi ates equally in all directions Used to express antenna gain dBm Decibels relative to one milliwatt An absolute unit used to measure signal power as in transmitter power output or received signal s...

Page 150: ...the power is reduced 3 dB with respect to the main beam HDB3 High density bipolar order of 3 A line interface standard for E1 transmission that employs coding to eliminate data streams with four or m...

Page 151: ...o QAM Redundant Switching Refers to the practice of switching between transmit signal paths when a fault condition occurs on the currently active radio rai Remote Alarm Indication Sometimes referred t...

Page 152: ...G 4 LEDR Series Installation Operation Guide MDS 05 3627A01 Rev D...

Page 153: ...mmands Set alarm thresholds using the THRESHOLD command Page 83 Set the SNMP community using the SNMPCOMM command Page 81 9 Perform bench tests to verify the performance of the radio The data performa...

Page 154: ...Microwave Data Systems Inc Rochester NY 14620 General Business 1 585 242 9600 FAX 1 585 242 9620 Web www microwavedata com 175 Science Parkway A product of Microwave Data Systems Inc...

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