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Western multiplex Lynx 1xE1, Installation And Maintenance Manual

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INSTALLATION AND MAINTENANCE MANUAL 

LYNX

 

E1 FAMILY  

LICENSED & SPREAD SPECTRUM RADIOS 

JUNE 2001 

 

PAGE 4-2 

SECTION 4: TROUBLESHOOTING 

4.2  Changing Frequency Plans 

 
The 

Lynx

 RF frequency selections are listed in Section 3.5. The near-end radio and the far-end radio 

must be corresponding (e.g. A1 / A2). The frequency of a given 

Lynx

 terminal is set by the specific 

filter, the physical orientation of this assembly, and the setting of corresponding DIP Switches. (See 
Section 3.12.1 for more details.) 
 
With respect to a given filter, the frequencies are fixed, because tuned RF filters are required for 
normal operation. Changing of the (pretuned) radio frequencies may be required when installing 
spares or for special situations, such as interference mitigation. This is accomplished by installing 
an alternate filter or reorienting the existing filter. 
 
For any given model of 

Lynx

 (2.4 GHz 1xE1, 2.4 GHz 2xE1, 5.8 GHz 1xE1, 5.8 GHz 2xE1, or 5.8 

GHz 4xE1), the frequency channel can be changed by swapping and /or reorienting the filter. 

 

It is not necessary to remove the cover assembly of the Lynx 

 

 

 

1.  Remove any cables connected to the antenna connector on the diplexer (filter) and then 

remove the two screws which mount the filter to the 

Lynx

 chassis. 

 

2.  Slowly remove the filter from the chassis being careful to not endanger the cables that are 

connected to the rear side of the filter. 

 

3.  Disconnect the two SMA connectors that are attached to the rear of the filter with a 5/16” 

open end wrench. 

 

4.  Select the new filter or orient the existing filter such that the frequency channel label on the 

filter (showing the DIP switch positions) is right-side-up corresponding to the desired 
frequency channel. 

 

5.  Connect the two SMA connectors to the new or reoriented filter with the 5/16” open end 

wrench. 

 

6.  Slowly place the wired filter assembly so that it is flush with the rear panel. 

 

7.  Install the two screws which mount the filter to the rear panel. 

 

8.  Refer to the rear panel filter label or Section 3.12.1 for DIP Switch settings to correspond to 

the new filter and reattach the antenna cable. 

 

As an example, the filter assemblies of an A1 and A2 terminal are 
identical. They are simply installed differently. An A1 terminal can 
be changed into an A2 by removing the filter and rotating it 180 
degrees and reinstalling the filter. The DIP switch positions need 
to match the filter orientation, per the appropriate filter label. 

Summary of Contents for Lynx 1xE1

Page 1: ...INSTALLATION AND MAINTENANCE MANUAL LICENSED RADIOS 2xE1 and 4xE1 1 5 GHz SPREAD SPECTRUM RADIOS 1xE1 2xE1 4xE1 and 8xE1 2 4 AND 5 8 GHz MAN 31400 002...

Page 2: ......

Page 3: ...plex makes no warranty of any kind concerning this manual or any equipment supplied with this manual including but not limited to the implied warranties of merchantability and fitness for a particular...

Page 4: ...ber 2000 Added the LYNX HD6 8xE1 March 2001 Added Lynx HD 4xE1 2 4 GHz Model 31350 20 30 Added Lynx HD 4xE1 5 8 GHz Model 31850 20 30 Added Lynx HD 8xE1 5 8 GHz Model 27705 20 June Added Safety Instru...

Page 5: ...e equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the...

Page 6: ...INSTALLATION AND MAINTENANCE MANUAL LYNX E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 iv This page intentionally left blank...

Page 7: ...ex Western Multiplex shall either repair or replace the Returned item at its sole option The replacement item may be new or refurbished if refurbished it shall be equivalent in operation to new Equipm...

Page 8: ...SAVINGS ANY CLAIM AGAINST A CUSTOMER BY A THIRD PARTY OR ANY OTHER COMMERCIAL OR ECONOMIC LOSSES OF ANY KIND 6 4 THESE LIMITATIONS AND DISCLAIMERS ARE NOT MADE BY WESTERN MULTIPLEX WHERE PROHIBITED B...

Page 9: ...nication from the Customer that are not identical with the terms and conditions steed in this document shall NOT become a part of the agreement of sale unless expressly agreed to in writing in the Quo...

Page 10: ...payment of the purchase price of the Equipment and all other amounts due from the Customer 6 2 If the Customer is not located in North America a despite delivery and passing of risk in the Equipment...

Page 11: ...result of a failure of the Equipment to operate in conjunction with other manufacturer s equipment WARRANTY 14 1 All Equipment is covered by the Warranty 14 2 THE WARRANTY CONTAINS LlMITATIONS ON THE...

Page 12: ...ern Multiplex may enforce the provisions of the Agreement in accordance with the laws of the jurisdiction in which the Equipment is situated The United Nations Convention on the Sale of Goods The Vien...

Page 13: ...3 2 Test Points Power Indicator 2 15 2 3 3 Alarm and Status Indicators 2 16 2 3 4 Controls 2 17 2 3 5 Connections 2 18 2 4 REAR PANEL DESCRIPTION 2 19 2 4 1 RF Connection 2 21 2 4 2 DATA Connections...

Page 14: ...78 3 14 3 Diagnostics Port Operation 3 80 3 14 3 1 Diagnostics Port using RS 232 3 81 3 14 3 2 Diagnostics Port using RS 422 3 82 3 14 3 3 TBOS Protocol and Map 3 83 3 14 4 AUX DATA Digital Service Ch...

Page 15: ...L PLAN 2 4 GHZ 4XE1 3 40 FIGURE 3 4 CHANNEL PLAN 5 8 GHZ 1XE1 4XE1 3 40 FIGURE 3 5 CHANNEL PLAN 5 8 GHZ 2XE1 3 41 FIGURE 3 6 CHANNEL PLAN 5 8 GHZ 8XE1 3 41 FIGURE 3 7 NEGATIVE VOLTAGE DC CONNECTION 3...

Page 16: ...C 2 ALARM PORT CONNECTIONS 5 12 FIGURE C 3 DIAGNOSTIC PORT 9 PIN D STYLE CONNECTOR 5 13 FIGURE C 4 AUX DATA PORT 9 PIN D STYLE CONNECTOR 5 13 Tables TABLE 3 A DC POWER CONNECTION FOR NEGATIVE SUPPLY...

Page 17: ...effectively utilize the information in this manual Section 2 Provides a brief description and specifications of the Lynx Radio Modems Section 3 Explains the Lynx installation and adjustments in detail...

Page 18: ...ation in accordance with Articles 110 18 110 26 and 110 27 of the United States National Electric Code ANSI NFPA 70 This equipment should be installed in accordance with Article 810 of the United Stat...

Page 19: ...it is earthed properly as described in this manual and per Figure 1 1 Do not connect or disconnect the power cable to the equipment when the other end of the cable is connected to the dc power supply...

Page 20: ...same source as other units ensure that the power supply circuit does not get overloaded When installed in a rack always ensure that proper air flow is provided for this product The maximum room ambien...

Page 21: ...ional microwave Because each owner controls the operation of the link there is no reliance on any outside services Lynx radio operators are able to operate instant links whenever needed and to be in c...

Page 22: ...utput Power typ 30 dBm 30 dBm 27 dBm 27 dBm Output Power min 27 dBm 27 dBm 24 dBm 24 dBm Control Range 16 dB min 16 dB min Frequency Range 2410 2473 MHz 2421 2462 5 MHz 1429 1515 5 1429 1515 5 occupie...

Page 23: ...0 ohms 1 5 or 2 4 GHz 5 8 GHz Recommended 4 6 or 8 foot 2 4 6 or 8 foot Antenna not included parabolic parabolic 1 or 2 foot flat panel 1 or 2 foot flat panel Gain Beamwidth 3 dB 2 ft Parabolic Antenn...

Page 24: ...d Spectrum models only 2 4 GHz 1 x E1 2 4 GHz 4 x E1 5 8 GHz 1 x E1 Threshold Rx Level 93 dBm 88 dBm 92 dBm BER 10 6 Frequency Range 2400 2400 5725 2483 5 MHz 2483 5 MHz 5850 MHz System Gain 123 dB 11...

Page 25: ...0 dB 1 8m Antennas 174 dB 181 dB 184 dB 182 dB 2 4m Antennas 176 dB 181 dB 184 dB 182 dB Deduct 2 dB 4 dB or 6 dB for the 2xE1 4xE1 or 8xE1 models respectively Typical Link Distance 0 6m Antennas 1 2m...

Page 26: ...Hz 5834 MHz 5820 MHz 2467 MHz C1 channel N A 5775 MHz N A 5775 MHz N A C2 channel N A 5840 MHz N A 5840 MHz N A 5 8 GHz 8xE1 HD 27705 20 A1 channel 5750 MHz A2 channel 5825 MHz Receive Frequencies 2 4...

Page 27: ...1 channel 1443 0 MHz TBD MHz E2 channel 1508 5 MHz TBD MHz F1 channel 1446 5 MHz TBD MHz F2 channel 1512 0 MHz TBD MHz G1 channel 1450 0 MHz TBD MHz G2 channel 1515 5 MHz TBD MHz Receive Frequencies 1...

Page 28: ...ced 120 ohm Pins 1 TT 2 TR 4 RT 5 RR optional 75 ohm unbalanced balun available Blue Code Alarm Indication Signal AIS Remote Loopback Internal or external test signal rear panel DIP switch selectable...

Page 29: ...B DTMF tones within 1 5 of nominal freq Ringing Voltage 48 VDC typical use telephones with solid state ringers NOT adequate for older style mechanical ringers VF Orderwire Bridge 600 ohm balanced 4 w...

Page 30: ...e T e m p e r a t u r e a n d E n v i r o n m e n t a n d E n v i r o n m e n t All Models Operating Temperature Range 30 to 65 C Humidity 95 non condensing Altitude 4 500 meters maximum 2 2 8 2 2 8 P...

Page 31: ...7 Industry Canada ID 522 102 415A 202 810 21853A 2028 102 237 IC Rule Parts RSS 210 RSS210 RSS 210 ETSI ETS 300 328 826 ETS 300 328 826 5 8 GHz 2xE1 5 8 GHz 4xE1 5 8 GHz 8xE1 FCC Identifier HZB LYNX66...

Page 32: ...ECTRUM RADIOS JUNE 2001 PAGE 2 12 SECTION 2 PRODUCT DESCRIPTION 2 2 1 0 2 2 1 0 M e c h a n i c a l M e c h a n i c a l All Models Width for 19 inch EIA 437 mm 17 2 rack mounting brackets supplied rac...

Page 33: ...ed for installation maintenance operation and troubleshooting Prior to installation it is best to be familiar with the front panel of your particular model Sections 2 3 2 through 2 3 5 briefly describ...

Page 34: ...M RADIOS JUNE 2001 PAGE 2 14 SECTION 2 PRODUCT DESCRIPTION Figure 2 Figure 2 4 Front Panel 5 8 GHz 8xE1 4 Front Panel 5 8 GHz 8xE1 Figure 2 Figure 2 5 Front Panel 1 5 GHz 2xE1 5 Front Panel 1 5 GHz 2x...

Page 35: ...troubleshooting LOCAL TX PWR This is a test point which corresponds to the output transmit power of the radio A voltage can be measured with a voltmeter using the GND test point for reference which co...

Page 36: ...active AIS Alarm Indication Signal is injected into the E1 line transmit output data port AIS OUT When lit RED this is a status condition indicating that the radio receiver is transmitting AIS Alarm I...

Page 37: ...flashes while the far end is solid Loopback is disabled by pushing and releasing the ENABLE button at either the near end or far end radio Enabling loopback will interrupt traffic This is an out of s...

Page 38: ...ress of the far end radio or any radio in the Lynx network to establish telephone communication between sites This communication does not interrupt or interfere with the other radio communications The...

Page 39: ...sed for installation maintenance operation and trouble shooting Before installation you should familiarize yourself with the rear panel Figure 2 Figure 2 7 R e a r P a n e l 1 x E 1 7 R e a r P a n e...

Page 40: ...ure 2 1 0 R e a r P a n e l 8 x E 1 b a l a n c e d R J 1 0 R e a r P a n e l 8 x E 1 b a l a n c e d R J 4 5 p o r t s o n l y 4 5 p o r t s o n l y Figure 2 Figure 2 1 1 R e a r P a n e l 1 5 G H z...

Page 41: ...panel The N Type connector is used to connect the antenna typically using coaxial transmission line In some cases waveguide may be used as the primary transmission line in which case a waveguide to N...

Page 42: ...1 connections These connections carry the individual E1 signals in and out of the radio The BNC data ports accept bipolar signals with the shield normally left open floating in order to eliminate grou...

Page 43: ...ed to other transmission equipment for monitoring alarm status locally or remotely DIAG NOSTICS This is a serial interface port RS 232 or RS 422 9600 baud to the Lynx radio This port provides maintena...

Page 44: ...esting when the operator is located at the terminal site and watching for errors see Section 3 13 3 AIS Disable This switch segment allows the user to select whether or not an AIS signal will be autom...

Page 45: ...spreading code for the spread spectrum signal Both ends of a radio system must be set to the same code Users may wish to change codes for radios that are nearby other similar radios to aid in interfer...

Page 46: ...g screws are provided which allow 19 inch rack mounting of the Lynx radio Terminal Connector This is a 6 pin mating connector used for DC power supply D Connector 9 pin Two of these mating connectors...

Page 47: ...INSTALLATION AND MAINTENANCE MANUAL E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 SECTION 2 PRODUCT DESCRIPTION PAGE 2 27 Your Notes on the Lynx Radio...

Page 48: ...vent that the equipment must be returned to the factory use the original packing materials for return shipment The original packaging materials are also recommended for transporting the equipment from...

Page 49: ...DIOS JUNE 2001 SECTION 2 PRODUCT DESCRIPTION PAGE 3 29 3 2 Packing Items Identification The primary shipping container houses the radio and an additional box The box contains several related items ins...

Page 50: ...e margin calculation Availability calculation Frequency plan determination Power supply planning Antenna and accessories purchase Only directional antennas should be used with Lynx radios These can be...

Page 51: ...mission will not pass through trees or other obstacles Factors to consider include Earth curvature Future growth of trees Height of buildings In addition to the line of sight requirement a well engine...

Page 52: ...by Lp dB 96 6 20 log10 F 20 log10 D where F Frequency in GHz 1 5 2 4 or 5 8 D Distance of path in miles This link budget is very important for determining any potential problems during installation If...

Page 53: ...rovided in Section 3 3 3 the anticipated RSL can be calculated Compare this RSL to the specified threshold of the Lynx radios which is shown in Section 2 2 and calculate the fade margin as the differe...

Page 54: ...4 GHz or 5 8 GHz in the case of the Lynx radios Terrain smooth average mountainous Climate dry temperate hot humid Depending on the type of traffic carried over the link the system designer may wish t...

Page 55: ...used at the same site the same radio channel e g A1 and A1 should be used at a site to minimize interference Using alternate channels e g A1 and A2 is less likely to be successful and therefore not re...

Page 56: ...battery reserves Typically either a positive or negative ground 24 or 48 volt supply is used For DC be sure the cable is of sufficient gauge to carry the necessary current and it is less than three 3...

Page 57: ...e more costly to purchase and install than smaller antennas in some cases requiring special equipment for installation All of these factors should be taken into consideration when selecting antennas I...

Page 58: ...wer Alarms The following tools are recommended for the installation of the Lynx radios RF power meter to measure transmitter output power Cellular phone or two way radio for talking with far end crew...

Page 59: ...lows users to implement Lynx systems in the proximity of other Lynx radios planned or unplanned hub and repeater applications and can be used to mitigate interference The channel plans are illustrated...

Page 60: ...ENTS Channel Pairs A1 TX 2410 RX 2451 A2 RX 2410 TX 2451 B1 TX 2424 RX 2465 B2 RX 2424 TX 2465 Figure 3 Figure 3 3 Channel Plan 2 4 GHz 4xE1 3 Channel Plan 2 4 GHz 4xE1 Figure 3 Figure 3 4 C h a n n e...

Page 61: ...PTION PAGE 3 41 Figure 3 Figure 3 5 Channel Plan 5 8 GHz 2xE1 5 Channel Plan 5 8 GHz 2xE1 A1 A2 Channel Plan A1 A2 Tx 5750 MHz Rx 5750 MHz Rx 5825 MHz Tx 5825 MHz Figure 3 Figure 3 6 Channel Plan 5 8...

Page 62: ...k mounting brackets enclosed with the screws in the Accessory Kit 4 per bracket The rack mounting brackets may be reversed in order to install for flush or cabinet mounting if preferred Depending on r...

Page 63: ...see figure 3 7 3 Return DC 4 Return DC 5 Ground see figure 3 7 6 Power DC T a b l e 3 T a b l e 3 A D C P o w e r C o n n e c t i o n f o r N e g a t i v e S u p p l y A D C P o w e r C o n n e c t i...

Page 64: ...ground return connection to pins 3 or 4 See Figure 3 7 If using positive power connect the positive voltage to pins 3 or 4 Connect the ground return connection to pins 1 or 6 See Figure 3 8 The groun...

Page 65: ...i v e V o l t a g e D C C o n n e c t i o n 7 N e g a t i v e V o l t a g e D C C o n n e c t i o n Figure 3 Figure 3 8 P o s i t i v e V o l t a g e D C C o n n e c t i o n 8 P o s i t i v e V o l t...

Page 66: ...AC power supply operates from any AC voltage 100V 250V and 50 Hz or 60 Hz The AC supply is equipped with a mating connector that plugs directly into the Lynx radio and an AC cord with a 3 pin AC plug...

Page 67: ...rack should be as high as possible 20 dB minimum recommended The length of the antenna transmission line should be kept as short as possible to minimize losses For 5 8 GHz radios to minimize feeder l...

Page 68: ...be grounded every 100 feet In areas of high incidence of lightning dissipaters should be attached to antennas In addition coaxial in line spark gap type lightning suppressors should be added at the bo...

Page 69: ...ion and azimuth adjustment rods are then mounted onto the support brackets The whole structure must be adequately grounded for lightning protection The antenna system must always be installed accordin...

Page 70: ...e convenient to run two wires from the RSL and ground test points to the antenna so that the voltmeter reading is directly visible to the technicians aligning the antenna Also a cellular telephone or...

Page 71: ...SL to be peaked to the level calculated in the link budget If the RSL is peaked but is approximately 20 dB below the calculated level then it is likely that the antennas are aligned on a sidelobe of t...

Page 72: ...dBm RSL Voltage Volts 25 0 350 60 0 625 30 0 359 65 0 675 35 0 383 70 0 725 40 0 429 75 0 778 45 0 479 80 0 825 50 0 525 85 0 858 55 0 575 90 0 875 Figure 3 Figure 3 1 0 B T y p i c a l R S L V o l t...

Page 73: ...nal equipment If a balanced 120 ohm connection RJ45 is required when using Lynx 1xE1 or 2xE1 or Lynx 4xE1 with BNC ports then an optional balun will provide this interface If you can not locate these...

Page 74: ...LYNX E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 PAGE 3 54 SECTION 3 INSTALLATION ADJUSTMENTS Figure 3 Figure 3 11 CEPT 11 CEPT 1 I n t e r f a c e G r o u n d i n g S w i t c h 1 I n t e r f...

Page 75: ...is upside down Set the DIP switch settings for the label that is right side up If a new filter is installed or the existing filter is rotated for opposite channel configuration e g A1 to A2 reset the...

Page 76: ...e internal or an external test signal The factory setting for loopback mode is internal On 1xE1 2xE1 and 4xE1 models SW1 position 3 and on the 8xE1 model SW 3 position 1 will select the loopback test...

Page 77: ...el The spreading code must be the same for both ends of a radio link The spreading code can not be selected on the 4xE1 and 8xE1 Lynx 1 5 GHz and Lynx HD models Spreading codes are all set in the fact...

Page 78: ...and remote alarms are not regularly generated by the known lack of this data input When the network is later expanded to include traffic on the second E1 this switch can be set to enable the input dat...

Page 79: ...3 59 Ch1 SW4 1 Ch1 SW4 2 Ch1 SW4 3 Ch1 SW4 4 Ch1 SW4 5 Ch1 SW4 6 Ch1 SW4 7 Ch1 SW4 8 Input Alarm Disabled 1 1 1 1 1 1 1 1 Input Alarm Enabled 0 0 0 0 0 0 0 0 Figure 3 Figure 3 1 4 B I n p u t A l a r...

Page 80: ...en the AIS is selected on the CEPT 1 signal will send blue code to the line when the r eceived BER exceeds 1 x 10 3 This function is similar to a data mute function When the AIS is disabled off no ins...

Page 81: ...ifferent codes can be selected using the SW2 DIP switch segments 1 through 8 located on the Lynx HD 8xE1 rear panel The security code must be the same for both ends of a radio link The factory setting...

Page 82: ...e can also be very useful for installation but typically cannot be put into service until step 8 or 9 of this procedure is completed See Section 3 14 1 for more details 2 Perform a general alignment o...

Page 83: ...mitter in accordance with the path analysis calculations The recessed potentiometer is rotated clockwise to increase transmit output power and counter clockwise to decrease transmit output power After...

Page 84: ...TMENTS Figure 3 Figure 3 1 6 T y p i c a l R F O u t p u t P o w e r 1 6 T y p i c a l R F O u t p u t P o w e r ve ve r s u s P W R V o l t a g e 1 5 2 4 G H z r s u s P W R V o l t a g e 1 5 2 4 G H...

Page 85: ...Figure 3 Figure 3 1 7 T y p i c a l R F O u t p u t P o w e r 1 7 T y p i c a l R F O u t p u t P o w e r v e r s u s P W R V o l t a g e 5 8 G H z M o d e l s v e r s u s P W R V o l t a g e 5 8 G H...

Page 86: ...he near end radio In other words RSL is the amount of signal the near end radio is receiving from the far end radio Since the antennas have not been finely aligned it is not expected at this time that...

Page 87: ...typical causes of low RSL Radio operations can be verified by connecting radios back to back with attenuators 40 60 dB see Section 4 9 If the problem remains consult Section 4 of this manual for troub...

Page 88: ...5 7 5 9 5 3 5 0 5 2 5 61 0 200 16 6 12 1 10 6 13 4 8 9 7 4 20 2 14 2 11 2 8 2 9 6 3 6 0 6 2 4 64 0 210 17 0 12 5 11 0 13 6 9 1 7 6 20 9 14 9 11 9 8 9 9 7 3 7 0 7 2 3 67 1 220 17 4 12 9 11 4 13 8 9 3...

Page 89: ...61 0 200 M A X 29 3 28 4 27 6 26 3 25 4 64 0 210 M A X 29 6 28 8 27 8 26 5 25 7 67 1 220 M A X M A X 29 2 28 1 26 7 25 9 70 1 230 M A X M A X 29 6 28 3 27 0 26 1 73 2 240 M A X M A X M A X 28 5 27 2...

Page 90: ...Thruline power meters do not operate at Lynx RF frequencies If adjusting the output power to meet an EIRP limit it will be first necessary to calculate the overall system gains and losses including fe...

Page 91: ...around the far end radio press ENABLE and hold for approximately 3 seconds then release the Loopback ENABLE button on the front panel of the near end radio The ENABLE LED should now be blinking If th...

Page 92: ...be initiated Section 4 10 describes BER testing in more detail Loopback may be turned off at either end of the link by simply pressing the ENABLE button at either end If two BER test sets are used to...

Page 93: ...or rate In this mode the LED will flash on each time a single or multiple error occurs The LED turns off if no further errors occur This mode can be useful if a BER test set is not available and the u...

Page 94: ...al type ringers This Orderwire service does not affect the normal radio transmission of E1 traffic Refer to Section 2 3 5 for the telephone specifications For simple near end to far end communications...

Page 95: ...re telephone jack see Figure 3 19 for details 3 With a telephone connected to each Lynx terminal on opposite ends of the link either telephone can be used to dial up the far end location Simply pick u...

Page 96: ...red to connect all radios to the orderwire The orderwire system can be integrated with orderwire equipment supported by many other vendors If your existing orderwire network uses 2 digit addressing an...

Page 97: ...INSTALLATION AND MAINTENANCE MANUAL E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 SECTION 2 PRODUCT DESCRIPTION PAGE 3 77...

Page 98: ...ms interface to a single standard TTL load When the unit is IN ALARM 0 the TTL output is 0 V to 0 5 V When the unit is NO ALARM 1 the TTL output is 3 5 V to 5 5 V See Table 3 E and Figure 3 21 for Ala...

Page 99: ...ction for the out of service summary alarm relay PIN 8 AIS OUT in alarm when the BER exceeds 1 x 10 3 for the received signal or when there is an RX SYNC alarm condition Near end radio CEPT 1 line out...

Page 100: ...ics port allows connection of either EIA standard RS 232 or RS 422 devices to poll and receive status of the Lynx radio This serial port provides similar information to that which is normally availabl...

Page 101: ...stics connection to the Lynx radio connect the serial device modem computer terminal to the male 9 pin subminiature connector in accordance with Figure 3 23 Figure 3 Figure 3 23 RS 23 RS 2 3 2 D i a g...

Page 102: ...nnect to the serial device modem computer terminal to the male 9 pin subminiature connector in accordance with Figure 3 24 Figure 3 Figure 3 24 RS 24 RS 4 2 2 D i a g n o s t i c P o r t C o n n e c t...

Page 103: ...x radio sends to the TBOS terminal has a specific meaning with regard to status alarms or controls All TBOS network elements require a map for the network management software to interpret their respon...

Page 104: ...Off Front panel switch where applicable 29 3 S C Loopback Channel 3 Enabled Loopback Channel 3 On Off Front panel switch where applicable 30 2 S C Loopback Channel 4 Enabled Loopback Channel 4 On Off...

Page 105: ...INSTALLATION AND MAINTENANCE MANUAL E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 SECTION 2 PRODUCT DESCRIPTION PAGE 3 85...

Page 106: ...s for this configuration There is a related DIP switch position as shown in Figure 3 27 that makes the AUX DATA port usable for customer data instead of the TBOS network management information The fac...

Page 107: ...M a n a g e m e n t 2 6 R e p e a t e r A p p l i c a t i o n w i t h S i t e N e t w o r k M a n a g e m e n t Antenna Diagnostics Diagnostics 2 X E1 Lynx Antenna E1 Diagnostics E1 Aux DATA Aux DATA...

Page 108: ...88 SECTION 3 INSTALLATION ADJUSTMENTS Figure 3 Figure 3 2 7 A U X D A T A C a b l e C o n n e c t i o n f o r R e p e a t e r 2 7 A U X D A T A C a b l e C o n n e c t i o n f o r R e p e a t e r Hub...

Page 109: ...necting the antenna and E1 connections to the Protection Switch unit and then connecting the Protection Switch unit to two separate and identical Lynx or radios The Protection Switch unit provides the...

Page 110: ...ication is typically configured as two separate radios at the same site connected to two separate antennas The separate antennas yield a slightly different path and therefore may provide better perfor...

Page 111: ...INSTALLATION AND MAINTENANCE MANUAL E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 SECTION 2 PRODUCT DESCRIPTION PAGE 3 91 Your Notes on the Lynx Radio...

Page 112: ......

Page 113: ...monitor the radio link at regular intervals to assure that the link conditions are not changing When visiting a radio site for maintenance the following items may be checked and their results recorded...

Page 114: ...ected to the antenna connector on the diplexer filter and then remove the two screws which mount the filter to the Lynx chassis 2 Slowly remove the filter from the chassis being careful to not endange...

Page 115: ...any other radio in that same model type independent of frequency channel plan For example a 5 8 GHz E1 channel A2 can be used as a spare for any A B or C channel E1 radio at 5 8 GHz See Section 4 2 fo...

Page 116: ...ers are encouraged to troubleshoot the radio and link in accordance with the latter part of this section in this manual before contacting Western Multiplex Western Multiplex also has a limited supply...

Page 117: ...ce of returning the product You will be assigned a Return Material Authorization RMA number that authorizes your return Units sent to the factory without an RMA number may be delayed in the processing...

Page 118: ...re are several front panel status LEDs on the Lynx radio These LEDs indicate conditions where either a hardware failure has occurred or the radio link is not optimum In many cases a combination of LED...

Page 119: ...lure The capacity of the radio will determine how many DATA LOSS LEDs there are on the front panel Sometimes a double capacity radio is put into service with only one input channel active with the sec...

Page 120: ...e the alarm condition can be disabled by a rear panel DIP switch as described in Section 3 12 4 4 Verify that the CEPT 1 line has data active at the radio connection This can be accomplished using a B...

Page 121: ...at least 1 second for any group of errors which exceed the threshold whether they are a burst of errors or a long string of errors If the RX SYNC alarm is on the near end or far end radio in addition...

Page 122: ...xpected RSL from the link budget calculations If RSL from both ends of the radio are approximately the same as each other but lower than anticipated for this installation then the likely cause of the...

Page 123: ...external BER test should be performed to verify the extent of bit errors on the link See Sections 4 9 and 4 10 for details on bit error rate testing A BERT can be connected on one side of the link th...

Page 124: ...e reading v Antenna problems misalignment or path clearance usually accompanied by Far End RX SYNC or BER alarm and low RSL voltage reading v Improper radio settings frequency channel spread code v In...

Page 125: ...is not receiving data and is therefore injecting AIS to the line transmit out of the CEPT 1 connector If the AIS has been disabled by rear panel DIP switch AIS will not be injected onto the line trans...

Page 126: ...unobstructed for airflow 3 Verify that at least one of the internal fans are operational by temporarily covering some of the ventilation holes on the right side of the radio as you face the front pan...

Page 127: ...If RADIO FAIL alarm clears check CEPT 1 connections for proper pin connections and impedance as described in Section 3 11 3 If RADIO FAIL alarm does not clear remove power from the unit 4 Check to mak...

Page 128: ...n the DISPLAY FAR END button is pressed and held the status LEDs indicate the alarm conditions of the far end radio Possible Cause v One or more alarm condition s exist on the far end radio Recommende...

Page 129: ...If the BER LED is lit this indicates rather severe error conditions and it is best to follow the procedures provided in Section 4 6 1 However some errors will not result in the BER alarm such as bipo...

Page 130: ...AINTENANCE MANUAL LYNX E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 PAGE 4 18 SECTION 4 TROUBLESHOOTING 2 Even if the BER alarm LED is unlit but errors continue follow the instructions describe...

Page 131: ...eam antennas also reject off azimuth signals being received from potential sources of interference and have high gain which boosts desired receive levels and improves the carrier to interference ratio...

Page 132: ...6 dB for radios using the same channel plan This is the difference between the co channel C I when using different codes for the wanted and unwanted signals When combined with a different frequency ch...

Page 133: ...reduced by moving from the A1 A2 plan to the B1 B2 plan or by swapping terminals or RF filters so that A1 becomes A2 Signals outside the range of 2 4 GHz to 2 5 GHz for 2 4 GHz radios and 5 7 GHz to...

Page 134: ...g any radio to the factory for repair When the equipment is connected as shown in Figure 4 1 without connecting the BER tester both Lynx radios should have no alarm conditions except for DATA LOSS Whe...

Page 135: ...t C o n f i g u r a t i o n B a c k T e s t C o n f i g u r a t i o n When using a BER tester initiate loopback on connected Lynx and select external test mode as described in Section 3 12 2 The Lynx...

Page 136: ...back testing using the DIP switches as defined in Section 3 12 Verify all DIP switch settings The BER test pattern chosen must contain adequate 1 s density A 215 1 QRSS or 3 in 24 test pattern may be...

Page 137: ...INSTALLATION AND MAINTENANCE MANUAL E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 SECTION 4 TROUBLESHOOTING PAGE 4 25 Your Notes on the Lynx Radio...

Page 138: ......

Page 139: ...it Rate 2 048 Mb s Pulse Shape All marks of a valid signal must conform with the mask irrespective of the sign The value V corresponds to the nominal peak value Pair s in each Direction One Coaxial pa...

Page 140: ...1 PAGE 5 2 SECTION 5 APPENDICES Figure A Figure A 1 M a s k o f t h e E 1 P u l s e C E P T 1 M a s k o f t h e E 1 P u l s e C E P T 1 1 219 10 10 10 10 10 10 269 244 25 194 ns 244 50 244 ns 20 488 n...

Page 141: ...set for factory default configuration which is all switches down in the zero position except for SW3 positions 5 through 8 which are set to match the installed rear panel RF filter assembly which dete...

Page 142: ...able Diagnostics Port 7 TBOS 0 Craft SNMP Proxy 1 Aux Data Port 8 Bridged TBOS 0 Enabled Clear 1 1 2 3 4 SW2 1 0 0 0 0 0 1 CEPT 1 Ground Note 0 Floating Not used 1 Grounded on 2E 4E 1 2 3 4 5 6 7 8 SW...

Page 143: ...le Diagnostics Port 7 TBOS 0 Craft SNMP Proxy 1 Aux Data Port 8 Bridged TBOS 0 Enabled Clear 1 1 2 3 4 SW2 1 0 0 0 0 0 1 CEPT 1 Ground Note 0 Floating Not used 1 Grounded on 2E 4E 1 2 3 4 5 6 7 8 SW3...

Page 144: ...nostics Port 7 TBOS 0 Craft SNMP 1 Aux Data Port 8 Bridged TBOS 0 Enabled Clear 1 1 2 3 4 SW2 1 0 0 0 0 0 1 CEPT 1 Ground 0 Floating 1 Grounded 1 2 3 4 5 6 7 8 SW3 1 x x x 0 0 0 0 0 0 x x x 1 2 Spread...

Page 145: ...e Flash 5 Rx AIS Output 0 Enable 1 Disable Diagnostics Port 7 TBOS 0 Craft 1 Aux Data Port 8 Bridged TBOS 0 Enabled Clear 1 1 2 3 4 SW2 1 0 0 0 0 0 1 2 CEPT 1 Ground 0 0 Floating 1 1 Grounded 1 2 3 4...

Page 146: ...ut 0 Enable 1 Disable Diagnostics Port 7 TBOS 0 Craft SNMP Proxy 1 Aux Data Port 8 Bridged TBOS 0 Enabled Clear 1 1 2 3 4 SW2 1 0 0 0 0 0 1 2 3 4 CEPT 1 Ground 0 0 0 0 Floating 1 1 1 1 Grounded 1 2 3...

Page 147: ...aft SNMP Proxy 1 Aux Data Port 8 Bridged TBOS 0 Enabled Clear 1 1 2 3 4 5 6 7 8 SW2 1 x x x x x x x x 0 x x x x x x x x 1 2 3 4 Not Used Not Used 5 6 7 8 1 2 3 4 5 6 7 8 SW3 1 x x x 0 0 0 0 0 0 x x x...

Page 148: ...0 Enabled Clear 1 1 2 3 4 5 6 7 8 SW2 1 0 0 0 0 0 0 0 0 0 1 2 3 4 Link Security ID 0 0 0 0 1 1 1 1 Link Security ID 5 6 7 8 0 0 0 0 1 1 1 1 1 2 3 4 5 6 7 8 SW3 1 x x x 0 0 0 0 0 0 x x x 1 Loopback Tes...

Page 149: ...bled Clear 1 1 2 3 4 SW2 1 0 0 0 0 0 2xE1 4xE1 4xE1 1 2 3 4 CEPT 1 Ground 0 0 0 0 Floating 1 1 1 1 Grounded 1 2 3 4 5 6 7 8 SW3 1 NotUsed x x x x 0 0 0 0 0 x x x x 1 Loopback Test Source 0 Internal 1...

Page 150: ...ures illustrate the pin structure for all rear panel data connections All figures are oriented as a customer would view them facing the rear panel DC power connection information is found in Section 3...

Page 151: ...3 D i a g n o s t i c P o r t 9 r t 9 Pin D Pin D S t y l e C o n n e c t o r S t y l e C o n n e c t o r Do NOT use both the RS 232 and RS 422 connections at the same time Figure C Figure C 4 AUX DA...

Page 152: ...STALLATION AND MAINTENANCE MANUAL LYNX E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 PAGE 5 14 SECTION 5 APPENDICES Appendix E Installation and Troubleshooting Guide Insert foldout after this pa...

Page 153: ...INSTALLATION AND MAINTENANCE MANUAL E1 FAMILY LICENSED SPREAD SPECTRUM RADIOS JUNE 2001 SECTION 5 APPENDICES PAGE 5 15 Your Notes on the Lynx Radio...

Page 154: ...un 2 8 2 22 3 53 Bit error rate 3 70 Bit Error Rate 2 16 2 17 3 34 3 59 3 66 3 71 3 77 4 9 4 11 4 17 4 23 BNC 3 53 C Calculations 3 32 Caution 1 2 CEPT 1 2 22 3 53 5 1 5 2 CEPT 1 connection 3 66 3 70...

Page 155: ...3 55 3 70 4 10 4 17 M Mechanical 2 12 MHS 3 86 Mounting 3 42 N Note 1 2 O Orderwire 2 9 2 23 2 25 3 61 3 66 3 73 3 74 3 75 Output power 3 63 3 64 Output power adjust 3 67 3 68 3 69 P Path 3 31 Path pl...

Page 156: ...3 50 S SD Configuration 3 87 Shipping 2 26 3 28 Spares 4 3 Spreading code 3 56 Switches 4 2 Synchronization 4 12 System 2 5 2 6 2 7 T TBOS 2 23 2 24 2 25 3 73 3 78 3 81 3 82 3 83 3 84 Technical suppor...

Page 157: ...For ISO Purposes Last Page of this Manual...

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