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Datum Systems M7 Series, Инструкция по установке и эксплуатации

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M7/M7L/M7LT Modular Satellite Modem 

 

Operation 

M7/M7L/M7LT - Rev. 0.05 

 

1-23 

allow entering either just the 3 digit FEC options or the full 

M

odulation, FEC 

T

ype, 

O

ption, 

C

ode rate and 

R

eed-Solomon mode (MTOCR) in a single entry. 

Additional table notes: 

 

TPC 4k and 16k restrictions apply to that line and Code Rate only 

 

TPC16k operates up to up to 51.66Mbps depending on the Feature Set and modulation 

 

The Viterbi CT modes, Rate 3/4 & 7/8, 16QAM are only for Comtech modem compatibility as they 
only operate in this mode with R-S at 220, 200, depth of 4. R-S is auto-enabled 

 

TPC Advanced modes are Datum Systems proprietary implementations that require the TPC16k 
option only for the highlighted lines. They offer superior performance to CT modes 

1.6.1. 

Viterbi, Trellis Code Modulation Codec 

Viterbi has been the standard high performance FEC used in satellite communications for many 
years. It has only been in the past few years that new technologies have emerged which provide 
more coding gain with reasonable implementations. Viterbi still maintains the advantage of fairly high 
coding gain with very low latency.  

Trellis Code Modulation or “TCM” is a standard part of the modem used with 8PSK at rate 2/3. 

The Viterbi CT option mode allows interoperability with competitive modems for 16QAM operation at 
rates 3/4 and 7/8. The CT mode at this setting defaults to selecting Reed-Solomon CT mode at n, k 
and depth values of 220, 200, depth of 4 and inverts the data. This is a closed circuit mode that does 
not meet normal IESS standards, but is necessary in order to link to those modems. 

1.6.2. 

FlexLDPC FEC 

The addition of the 

Flex

LDPC FEC allows replacement of the standard Viterbi FEC selectively for 

transmit and receive paths. The performance improvement achieved by 

Flex

LDPC is the highest and 

most flexible of any specialized FEC technology to date, outperforming TPC across all modes

.

 For 

example, the 

Flex

LDPC at rate 1/2 is capable of operating at a sustained Eb/No of only 1.5 dB with 

an error rate less than 10

-9

  

1.6.3. 

Reed-Solomon Codec (RS) 

Reed-Solomon Codec places a second Forward Error Correction (FEC) process outside of and in 
series with the existing Viterbi FEC. The two FECs are thus considered "Concatenated". In addition, 
the data between the two FECs is "interleaved" which effectively reduces the possibility of multiple 
consecutive errored block symbols, thus improving the Reed-Solomon Codec performance.  

The performance improvement achieved by this combination is significant. For example, the BER vs. 
Eb/No performance of concatenated Viterbi rate 3/4 coding with R-S is better than Viterbi rate 1/2 
alone and it uses less bandwidth than the Viterbi rate 1/2 alone. 

Reed-Solomon is a block oriented code, meaning that data is framed into fixed size blocks and 
processed in a specific way. A full block must be received before processing can begin, thus adding 
to the latency.  

Reed-Solomon uses framing which allows the use of a synchronous scrambler resulting in slightly 
improved performance relative to the self-Synchronized scrambler normally used. 

A simplified block diagram of the Reed-Solomon Codec is shown in the Figure 1-19. 

Содержание M7 Series

Страница 1: ...M7 M7L M7LT Rev 0 05 M7 Series Modular Satellite Modem M7 M7L M7LT M7D M7DL Series Installation and Operation Manual Revision 0 05 0 ...

Страница 2: ...This page is intentionally blank ...

Страница 3: ...3 3 0 Operation 3 1 3 1 Operating Procedures 3 1 3 2 Front Panel 3 1 3 3 Front Panel Control and Monitor Matrix 3 3 3 4 Web Browser Operation 3 6 3 5 Front Panel Monitor and Control Parameters 3 32 3 6 Remote Command Interface Control 3 78 3 7 Modem Configuration 3 78 3 8 Data Interface Options Technical Details 3 85 3 9 Data Interface Clock Options 3 96 3 10 Automatic Uplink Power Control AUPC Op...

Страница 4: ...LT Rear Panel Connector Options N Type or F Type 2 5 Figure 2 5 M7LT Rear Panel indicators 2 6 Figure 2 6 M7LT Internal BUC Power Supply AC version shown 2 7 Figure 2 7 M7LT Internal BUC Power Supply DC Version 2 7 Figure 2 8 I7 IP Interface Rear Panel 2 13 Figure 2 9 Express Ethernet Interface E7 2 14 Figure 2 10 Typical SFP Interface Adapters Optical and GbE shown 2 14 Figure 2 11 G7 Dual G 703 ...

Страница 5: ... Figure 3 38 E7 Interface Statistics Page 3 28 Figure 3 39 Dual G 703 Interface Status Page 3 29 Figure 3 40 Dual G 703 Interface Send Mux Page 3 29 Figure 3 41 Dual G 703 I O Port 1 Page showing D I selections 3 30 Figure 3 42 Dual G 703 Interface Event Page 3 31 Figure 3 43 Alarm Processing 3 83 Figure 3 44 Express Ethernet Interface Block Diagram 3 89 Figure 3 45 Point to Point Satellite Networ...

Страница 6: ... Pinout J29 J32 2 14 Table 2 14 Port 1 J22 Port 2 J21 Connector 120 ohm Balanced Pinout RJ48c 2 15 Table 2 15 Overhead Interface RS 232 J20 2 16 Table 2 16 Overhead Interface RS 485 J20 2 16 Table 2 17 M7 Overhead Channel IBS Standard Mux RS 232 J25 2 18 Table 2 18 M7 Overhead Channel IBS Standard Mux RS 485 J25 2 18 Table 2 19 M7 Overhead Channel Advanced IBS Custom Mux RS 232 J25 2 19 Table 2 20...

Страница 7: ...ocal or national wiring codes and regulations The external IEC filtered AC to DC power converter module is rated for a nominal operating range of 90 to 264 VAC The unit has a maximum power consumption of 25 watts Never operate the equipment with the cover removed Never remove the cover with power applied As a safety measure the power cord should be disconnected from the unit when preparing to remo...

Страница 8: ...vironment Operation while exposed to precipitation condensation relative humidity above 95 excessive dust or temperature outside the operating range of 0 to 50 C may cause damage to the unit and will void the warranty Maximum storage temperature is 20 to 70 C Do not operate the modem in an unsafe environment near explosive or flammable gases or liquids If the M7 Series is to operation in a mobile ...

Страница 9: ...requested directly from Datum Systems Inc or via download from the web at www datumsystems com The electronic format on the web is always the latest revision Revision History Release Number Release Date Comments Revision 0 02 02 27 2013 Initial Public Release Revision 0 03 06 01 2013 Interface additions and cleanup Revision 0 04 9 16 2013 M7LT E7 PtMP AUPC and cleanup Revision 0 05 05 29 2014 Add ...

Страница 10: ......

Страница 11: ...n All M7 series modems encompass significant performance improvement over previous modems at reduced cost All options in the M7 M7L and M7LT modems are fully interchangeable with the exception of the IF input and output frequency range which is selected and factory installed at the time of order The M7 is designed for service in a variety of satellite systems and network types Carrier operating mo...

Страница 12: ...educes the number of devices that need to be managed and maintained A typical PtP network is shown in Figure 1 2 Figure 1 2 Point to Point Network Point to Multipoint networks are used to connect a central location to multiple remote locations The central location the Hub will output a continuous carrier that is received by all of the remote sites and receive the individual carriers from each of t...

Страница 13: ...riers that would be added and also an increase in the number of modems required at each site At some point this becomes unmanageable and the alternative is to use a Mesh network topology instead of multiple PtP networks At each site in a Mesh network there is a single carrier that contains all the information destined for all the nodes within the network In an IP based network there is considerabl...

Страница 14: ...rsion is capable of many software upgradeable Feature Sets as described in section 1 7 Many features of the modem are field upgradeable without adding new hardware The M7 modems contain two slots for IF boards These can include any combination of modulator and demodulator This means the M7 is capable of being a modem a TX only modulator RX only demodulator a dual modulator or dual demodulator Ther...

Страница 15: ...M7 M7L M7LT Modular Satellite Modem Operation M7 M7L M7LT Rev 0 05 1 9 Figure 1 6 M7LT Terminal showing front and rear views ...

Страница 16: ...ange for standard modem or 950 to 2150 MHz in the L Band versions The M7 digital PSK QAM demodulator accepting signals in the 50 to 180 MHz range for the standard modem or 950 to 2150 MHz in the L Band versions The Digital Signal Processor Acquisition subsystem is part of the demodulator assembly The M7 microprocessor monitor control subsystem The optional M7 Data Interfaces The standard serial da...

Страница 17: ...seband Signal Processing Modulator TData V 35 Intelsat and Differential Encoder Programmabl e Attenuator Processor Control Option Interface Connector P1 Intf Option Card Serial IP HSSI RData Option Interface Connector P1 XMT Out 70 140 MHz FEC Decoder Baseband Signal Processing Demodulator V 35 Intelsat and Differential Decoder Front end AGC Amp A D Conversion RCV In 70 140 MHz Out Clk In Clk Mode...

Страница 18: ...th stations The M7LT is an extension of the M7L that provides the LNB and BUC power supplies to power the low power outdoor RF equipment This creates the ability to build extremely simple and low cost high performance remote terminals 1 5 2 Sharp Carrier Technology The M7 provides multiple setting for the modulation carrier roll off that will allow interoperability with industry standards and opti...

Страница 19: ...Figure 1 10 Figure 1 10 Carrier Alpha 0 08 1Msps x1 10 Carrier Spacing For example in a typical 36MHz transponder configured with 1Msps carriers with a 0 4 roll off there could be twenty five 25 carriers If the 1Msps carrier roll off was changed to 0 08 there could now be 32 carriers a 28 increase in transponder throughput Table 1 1 shows the relative improvement that can be gained in a bandwidth ...

Страница 20: ...cally recognized by the modem making them a selectable option on the front panel or remote control protocols Refer to the optional interface appendix for detailed information on each of the interface options 1 5 3 1 Multi protocol Synchronous Serial Data interface S7 The Synchronous Serial Data Interface is considered the standard baseband interface for the M7 Figure 1 11 and contains the drivers ...

Страница 21: ...oint or point to multipoint data transfer The I7 interface Figure 1 12 contains a complete Linux X86 computer running the open source Vyatta router This processor router combination combines high performance with standard control mechanisms similar to Cisco or Juniper routers The I7 is a full function sophisticated router and therefore requires configuration in order for a network to operate prope...

Страница 22: ...des the M7 modem with an economical access solution for E1 network services over satellite The two 2 E1 ports are independent of each other except that they both must be selected for Balanced or Unbalanced operation Each E1 port also operates independently on transmit and receive sides of each port Typical use of the G7 interface is in a duplex point to point link with a similarly configured modem...

Страница 23: ...raming The G7 interface provides these key features Single or Dual port G 703 E1 Unframed Fractional E1 operation Balanced or Unbalanced operation Data rate 2 048Mbps Fully transparent signal conversion under unframed mode Clock Regeneration from incoming HDB3 or AMI formatted data Diagnostic Loopbacks for both Terrestrial and Satellite side The G7 interface provides E1 alarm monitoring for all co...

Страница 24: ...N links The standard itself describes communications at up to 52 Mbps over cable lengths up to 50 feet Since the M7 series of modems is capable of up rates 52 Mbps this optional interface allows full utilization of the M7 capabilities 1 5 3 6 Dual Interface Configuration The M7 allows for up to two 2 interface modules to be installed in the modem The M7 controller will recognize the installed inte...

Страница 25: ...es also provide the data loop back function The data loop back can be controlled from the front panel or via remote control command The data towards both the terrestrial and satellite sides can be looped back individually by enabling this function via the front panel or remote control The data loop back allows testing of the signal path connection up to the loop back and back to the source Since b...

Страница 26: ...60 Figure 10 resulting in a 16 15 aggregate to through data ratio This means that when the multiplexer is enabled the modem aggregate operating data rate is computed as the terrestrial connection through data rate multiplied by 16 15 The user sets only the desired through data rate while the modem computes the aggregate rate required The multiplexer is also capable of expanded operating modes whic...

Страница 27: ...es NOTE The Advanced mode is only available when the FEC is set to TPC or LDPC 1 5 8 Modem Control Channel MCC In the synchronous baseband interface options the MCC is available in both the Custom and Advanced Multiplexer modes In these modes the MCC provides for the AUPC plus the Remote Modem Control RMC Channel and the Auxiliary control bits RFC In the Ethernet and IP baseband interface options ...

Страница 28: ...election numbers are listed in the column to the right of each item These numbers can be referred for front panel operation but are even more applicable to the SnIP Telnet command line program named M7ctl This program has specific commands that FEC Type Sel T FEC Type Option Sel O Code Rates Available Sel C R S Option BPSK QPSK OQPSK 8PSK 8QAM 16APSK 16QAM 0 1 2 3 4 5 6 None 0 N A 0 N A 0 l l l Vi...

Страница 29: ...d circuit mode that does not meet normal IESS standards but is necessary in order to link to those modems 1 6 2 FlexLDPC FEC The addition of the FlexLDPC FEC allows replacement of the standard Viterbi FEC selectively for transmit and receive paths The performance improvement achieved by FlexLDPC is the highest and most flexible of any specialized FEC technology to date outperforming TPC across all...

Страница 30: ...modes shown in Table 1 4 can be selected from the front panel or remote control The CT220 200 mode is a special compatibility mode and is automatically set by certain CT FEC modes for example when Viterbi Rate 3 4 is selected when in 16QAM mode It can be over ridden from the Custom Reed Solomon parameter settings Table 1 4 Reed Solomon Modes Mode Compatibility Terrestrial Data Rate Overhead Ratio ...

Страница 31: ...utilization than either Reed Solomon concatenated on Viterbi or 8PSK TCM with Reed Solomon Figure 1 20 TCP Option Card The modem offers extensive TPC capabilities including first generation 4k block TPC with both legacy Datum modem compatibility PSM500 and Competitive Technology CT operating modes plus a newer second generation 16k block TPC This second generation TPC offers superior performance a...

Страница 32: ... primary or having preference when both modems are operational The first modem turned on assumes a non redundancy mode until the second connected unit is powered up The on line unit can be set to send its configuration information to a second unit via the front panel The modems will remain in this state constantly sending status information back and forth until one unit indicates a failure If that...

Страница 33: ... other information on CD 2 1 1 Removal and Assembly If using a knife or cutting blade to open the carton exercise caution to ensure that the blade does not extend into the carton but only cuts the tape holding the carton closed Carefully unpack the unit and ensure that all of the above items are in the carton If the Prime AC power available at the installation site requires a different power cord ...

Страница 34: ...to mate with the modem or installed interface option either a 25 pin male D sub connector for all standard or appropriate connector for an optional interface such as G 703 or Ethernet 2 3 Modem Connections All connections to the modem are located on the rear of the unit The connector definitions in the following sections describe the connectors on the modem Any connection interfacing to the modem ...

Страница 35: ...Option The RJ11 auxiliary connector J3 is used for redundancy operation and contains all control signals required for 1 1 redundancy operation 2 3 4 EIA 485 232 Control Port 9 pin female D sub connector J5 The modem has a command interface serial control port which can be configured for either of two electrical interface modes of operation Both are located on the rear panel 9 pin female D sub conn...

Страница 36: ...relays are designated A and B and the particular alarms that are summarized on each relay are programmable from the front panel of the unit or via remote control Connection to the A and B relays is via the proper set of pins as shown in Table 2 3 below and programming the applicable alarm entries via the front panel control or remote control Non Alarm is defined as the powered state of the relay r...

Страница 37: ...ntrol interface Please refer to the specifications in Appendix A 2 3 6 4 M7L L Band Demodulator M7L L Band IF Input SMA f J7 The modem L Band IF Input is located on a female SMA J7 The frequency and power level of this interface is programmable from any control interface Please refer to the specifications in Appendix A 2 3 6 5 M7LT L Band Modulator M7LT L Band IF Output N f or F f J8 The modem L B...

Страница 38: ...age and current applied to the BUC and LNB and can create alarms in addition to reading voltage and current at the front panel The rear panel LED next to the L Band IF connector show status of the BUC and LNB voltage as shown in Table 2 4 and Figure 2 5 Figure 2 4 shows the Prime Power and IF connector section of the M7LT rear panel Figure 2 5 M7LT Rear Panel indicators Table 2 4 Rear Panel BUC an...

Страница 39: ...er unit and Figure 2 7 shows the location of the BUC power supply in the DC input unit Instructions on how to acquire and install a different BUC power supply can be found in an Application Note Figure 2 6 M7LT Internal BUC Power Supply AC version shown Figure 2 7 M7LT Internal BUC Power Supply DC Version Location of the Internal BUC Power Supply AC Prime Power input 48VDC output Location of the I...

Страница 40: ...150 Watt 3 2 Amps 20 60 VDC 48 VDC 200 Watt 4 2 Amps NOTE DC Power Input is isolated so it can be either positive or negative ground NOTE All M7LT DC units are shipped from the factory with a five foot 3 conductor cable with mating connector on one end that will allow connection to the main DC supply at the installation site CAUTION VERY important that the polarity needs to be wired correctly 2 3 ...

Страница 41: ...pin assignments for the selectable standard electrical interfaces Table 2 6 Synchronous Serial Data Interface Connector Pinout J11 J11 Pin EIA 449 Signal Name V 35 Signal Name EIA 232 Signal Name 3 EIA 530 Signal Name Direction 1 Shield GND Shield GND Shield GND SHD GND GND 2 Transmit Data A SD A SD SD TD A Input 14 Transmit Data B SD B SD TD B Input 15 Transmit Clock A SCT A ST ST TTSETC A Output...

Страница 42: ...will phase locked to if within acceptable range The send timing signal is still an output from the modem but in this case will be at the input signal rate Both functions can be used simultaneously if the transmit and receive data rates are the same Table 2 7 Serial Interface Overhead Channel IBS Standard Mux RS 232 J10 J10 Pin Signal Name Use Direction 1 Ground All Ground 2 ESC Send Data RS 232 St...

Страница 43: ... 6 ESC DSR RS 232 Advanced Custom Mode Connection sync Output 7 Ground Ground Ground 8 ESC DCD RS 232 Advanced Custom Mode Connection sync Output 9 Primary Interface External Clock B FIFO External Clock input or B line RS422 level Input 11 ESC Alarm Out A Relay Common Backward Alarm A Form C Common Output 12 ESC Alarm Out B Relay N O Backward Alarm B Form C Normally Open Output 13 ESC Alarm Out B ...

Страница 44: ...ne RS422 level Input 11 ESC Alarm Out A Relay Common Backward Alarm A Form C Common Output 12 ESC Alarm Out B Relay N O Backward Alarm B Form C Normally Open Output 13 ESC Alarm Out B Relay N C Backward Alarm B Form C Normally Closed Output 14 ESC Alarm In A Alarm A Relay Low Activates Remote ESC Input TTL Internal 1mA Pull Up 15 Ground Return for ESC Alarm In A Alarm A Relay Ground Ground 16 ESC ...

Страница 45: ...on 1 TX D1 Transmit Data 2 TX D1 Transmit Data 3 RX D2 Receive Data 4 BI D3 Bi directional pair C 5 BI D3 Bi directional pair C 6 RX D2 Receive Data 7 BI D4 Bi directional pair D 8 BI D4 Bi directional pair D The Console connector J13 is a nine pin female D connector provides the user access to for configuration of the internal Vyatta router Table 2 12 I7 Console Connector Pinout J13 Pin Name Desc...

Страница 46: ...GigBit Ethernet Interface Ports 1 4 Connector Pinout J29 J32 Pin Name Description 1 TX D1 Transmit Data 2 TX D1 Transmit Data 3 RX D2 Receive Data 4 BI D3 Bi directional pair C 5 BI D3 Bi directional pair C 6 RX D2 Receive Data 7 BI D4 Bi directional pair D 8 BI D4 Bi directional pair D 2 3 8 3 2 SFP Interface J28 The optional SFP port provides an additional interface port that can be configured w...

Страница 47: ...nnectors are shown in Table 2 14 Table 2 14 Port 1 J22 Port 2 J21 Connector 120 ohm Balanced Pinout RJ48c Signal Name Description Direction Pins SD T Send Data Tip To Modem 1 SD R Send Data Ring To Modem 2 RD T Receive Data Tip From Modem 4 RD R Receive Data Ring From Modem 5 GND Ground n a 3 6 2 3 8 4 2 Dual G 703 E1 75 ohm Unbalanced The G7 interface offers dual G 703 E1 unbalanced interfaces pr...

Страница 48: ...anced Custom Mode Connection sync Input 4 ESC DTR RS 232 Advanced Custom Mode Connection sync Input 5 Ground Ground Ground 6 ESC DSR RS 232 Advanced Custom Mode Connection sync Output 7 ESC RTS RS 232 Advanced Custom Mode Connection sync Input 8 ESC CTS RS 232 Advanced Custom Mode Connection sync Output 9 RS 232 Input Not Currently Used Input Table 2 16 Overhead Interface RS 485 J20 J20 Pin Signal...

Страница 49: ...ips are engaged on both ends The standard HSSI SCSI 2 type cable designed to connect between a DTE Device like a router and a DCE such as the M7 modem is a 25 pair cable with shield This cable is connected as a 1 to 1 pin connection between the two male cable connectors That means that pin 1 on one end goes to pin 1 on the other pin 2 to 2 etc through pin 50 to pin 50 2 3 8 5 2 HSSI Overhead Chann...

Страница 50: ...ous Output 7 Ground Ground Ground 8 ESC Rcv Clock RS 232 Standard Mode Connection synchronous Output 9 Primary Interface External Clock B FIFO External Clock input or B line RS422 level Input 15 Ground Ground Ground 17 Ground Ground Ground 21 Primary Interface External Clock A FIFO External Clock input or A line RS422 level Input Table 2 18 M7 Overhead Channel IBS Standard Mux RS 485 J25 J10 Pin S...

Страница 51: ...n Backward Alarm A Form C Common Output 12 ESC Alarm Out B Relay N O Backward Alarm B Form C Normally Open Output 13 ESC Alarm Out B Relay N C Backward Alarm B Form C Normally Closed Output 14 ESC Alarm In A Alarm A Relay Low Activates Remote ESC Input TTL Internal 1mA Pull Up 15 Ground Return for ESC Alarm In A Alarm A Relay Ground Ground 16 ESC Alarm In B Alarm B Relay Low Activates Remote ESC I...

Страница 52: ... Output 12 ESC Alarm Out B Relay N O Backward Alarm B Form C Normally Open Output 13 ESC Alarm Out B Relay N C Backward Alarm B Form C Normally Closed Output 14 ESC Alarm In A Alarm A Relay Low Activates Remote ESC Input TTL Internal 1mA Pull Up 15 Ground Return for ESC Alarm In A Alarm A Relay Ground Ground 16 ESC Alarm In B Alarm B Relay Low Activates Remote ESC Input TTL Internal 1mA Pull Up 17...

Страница 53: ...or more added interface types available However only one interface type is allowed to be enabled at one time Installed interface card s are automatically recognized by the modem and an entry is added to the Interface Option selection menu Selection of the option interface then becomes identical to selection of any of the standard interfaces 2 5 Option Turbo Product Codes FEC Option Installation Th...

Страница 54: ...device The M7 can be ordered with any of these TPC options from the factory or installed in the field by a qualified technician Once installed the TPC option card will provide added functionality to the standard FEC functions already contained within the modem Viterbi TCM Reed Solomon and FlexLDPC The Turbo Product Codes option when enabled replaces any other FEC function The Modulator Transmit an...

Страница 55: ... necessary to ascertain correct functioning At the same time transmit and receive IF ports are also connected together through transmit and receive IF combiner splitter assemblies The major advantage to the built in redundancy capability is its extreme low cost but there are additional advantages The second or back up unit is sent its full configuration from the on line unit eliminating any config...

Страница 56: ......

Страница 57: ...guration information AUPC the analog monitor output redundancy and automatic recovery 3 2 Front Panel The M7 front panel is divided into three functional areas the LED Indicators the Keypad and the LCD display The front panel of the M7 allows complete control and monitor of all modem parameters and functions The front panel layout showing the location and labels is shown in Figure 3 1 Figure 3 1 M...

Страница 58: ...t panel keypad consists of three areas First is a 10 key numeric entry with 5 additional keys Two keys provide for a change sign and decimal point function three provide Edit Clear and Enter and four The Enter key on the lower right is normally blue while the rest of the numeric keypad keys are gray The second area is a set of Arrow or Cursor keys used to navigate the parameter currently being mon...

Страница 59: ...ront panel Figure 3 2 can be used to completely control the modem setup and operating parameters The modem parameters are arranged in four matrices Unit Unit Mod Modulator Demod Demodulator Intf Interface Each matrix represents a major functional area of modem operation i e Unit Modulator Demodulator and Interface while the columns represent groupings within those functional areas i e Status IF Da...

Страница 60: ...it Mod Dem and Intf 2 Select the parameter to be changed using the four arrow keys to the right of the LCD display The Left and right arrow keys control the column of the matrix and is shown in the upper left position of the LCD display The up and down arrow keys control the row of the matrix and is shown in the upper right of the LCD display 3 Press the Edit key to indicate that a new entry is de...

Страница 61: ...shed if the Unit Keyboard Entry Mode is set to Quick In this mode the current parameter can be changed by simply entering digit key 0 1 2 3 or 4 and pressing Enter to finalize the entry Optional selections can be viewed by successively pressing several keys to determine their value then pressing Enter Following a valid input the modem will store the new parameter into nonvolatile memory 3 3 4 Auto...

Страница 62: ...P address of the target M7 in the address bar of the browser NOTE Login security may be activated by setting up the User Password parameter in the binary interface Once this parameter is active the operator will be prompted to enter the username and password Figure 3 3 prior to connection to the M7 Web Browser The default user name is Admin and default password is Datum Figure 3 3 Login Page ...

Страница 63: ...t summary status of the selected page Unit Mod Dem or Intf The Page Menu allows the operator to navigate between the modem card set functions Unit Mod Dem and Intf The Parameter Window is the section of the page that allows detailed status of every parameter of the M7 The Parameter Window is further divided into sub pages by selecting the Tab for the desired function On any page where the user is ...

Страница 64: ... the current M7 status and indicates the available interfaces The status window cycles through the status of the Mod Carrier Dem Carrier RX Eb No and RX Level Figure 3 5 Summary Status Page From the Summary Status page the user may navigate to the other modem card set pages by selecting the desired parameter page on the Page Menu The available pages are Unit Modulator Demodulator and Interface Wit...

Страница 65: ...gure the common parameters of the M7 The remote control interface parameters the unit frequency reference and other unit parameters are controlled in the Unit pages Figure 3 6 through Figure 3 12 represent seven 7 of the sixteen 16 Unit pages available to the user Figure 3 6 Unit Status Page Figure 3 7 Unit Reference Page ...

Страница 66: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 10 M7 M7L M7LT Rev 0 05 Figure 3 8 Unit Events Log Page ...

Страница 67: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 3 11 Figure 3 9 Unit Remote IP Control Interface Pages Figure 3 10 Unit Remote Serial Control Interface Page ...

Страница 68: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 12 M7 M7L M7LT Rev 0 05 Figure 3 11 Unit HTTP Page Figure 3 12 Unit Event Page ...

Страница 69: ...are used to configure the transmit section parameters of the M7 The IF Data interface and other transmit parameters are controlled in the Modulator pages Figure 3 13 through Figure 3 16 represent four 4 of the eight 8 Modulator pages available to the user Figure 3 13 Modulator Status Page Figure 3 14 Modulator IF Page ...

Страница 70: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 14 M7 M7L M7LT Rev 0 05 Figure 3 15 Modulator Data Interface Page Figure 3 16 Modulator Event Page ...

Страница 71: ...pages are used to configure the receive section parameters of the M7 The IF Data interface and other receive parameters are controlled in the Demodulator pages Figure 3 17 through Figure 3 22 represent six 6 of the eight 8 pages available to the user Figure 3 17 Demodulator Status Page Figure 3 18 Demodulator IF Page ...

Страница 72: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 16 M7 M7L M7LT Rev 0 05 Figure 3 19 Demodulator Data Interface Page Figure 3 20 Demodulator Event Page ...

Страница 73: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 3 17 Figure 3 21 Demodulator Monitor Constellation Page ...

Страница 74: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 18 M7 M7L M7LT Rev 0 05 Figure 3 22 Demodulator Monitor Spectrum Analyzer Page ...

Страница 75: ...Channel parameters and other interface parameters are controlled in the Interface pages Each interface type will have a different set of pages Details of the parameters can be found in Section 3 4 2 5 4 NOTE The active interface is selected in the Modulator and Demodulator Data Interface pages 3 4 2 5 1 Serial Synchronous Interface Pages Figure 3 23 through Figure 3 28 represent six 6 of the eight...

Страница 76: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 20 M7 M7L M7LT Rev 0 05 Figure 3 24 Serial Synchronous Interface I O Page Figure 3 25 Serial Synchronous Interface Overhead Mux Demux Page ...

Страница 77: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 3 21 Figure 3 26 Serial Synchronous Interface ESC Interface Page Figure 3 27 Serial Synchronous Interface Test Configuration Page ...

Страница 78: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 22 M7 M7L M7LT Rev 0 05 Figure 3 28 Serial Synchronous Interface Event Page ...

Страница 79: ...e M7 M7L M7LT Rev 0 05 3 23 3 4 2 5 2 I7 Interface Screens Figure 3 29 through Figure 3 33 represent five 5 of the eight 8 I7 Interface pages available to the user Figure 3 29 I7 Interface Status Page Figure 3 30 I7 Interface IP Configuration Page ...

Страница 80: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 24 M7 M7L M7LT Rev 0 05 Figure 3 31 I7 Interface MCC Configuration Page Figure 3 32 I7 Interface Event Page ...

Страница 81: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 3 25 Figure 3 33 I7 Interface Statistics Page ...

Страница 82: ...Modem 3 26 M7 M7L M7LT Rev 0 05 3 4 2 5 3 E7 Interface Screens Figure 3 34 through Figure 3 38 represent five 5 of the eleven 11 E7 Interface pages available to the user Figure 3 34 E7 Interface Status Page Figure 3 35 E7 Interface Events Page ...

Страница 83: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 3 27 Figure 3 36 E7 Interface I O Port Configuration Page Figure 3 37 E7 Interface QoS Configuration Page ...

Страница 84: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 28 M7 M7L M7LT Rev 0 05 Figure 3 38 E7 Interface Statistics Page ...

Страница 85: ... Rev 0 05 3 29 3 4 2 5 4 Dual G 703 Interface Screens Figure 3 39 through Figure 3 42 represent four 4 of the eleven 11 Dual G 703 Interface pages available to the user Figure 3 39 Dual G 703 Interface Status Page Figure 3 40 Dual G 703 Interface Send Mux Page ...

Страница 86: ...Maintenance M7 M7L M7LT Modular Satellite Modem 3 30 M7 M7L M7LT Rev 0 05 Figure 3 41 Dual G 703 I O Port 1 Page showing D I selections ...

Страница 87: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 3 31 Figure 3 42 Dual G 703 Interface Event Page ...

Страница 88: ... HW Type Modulation FEC Option Xmt Gain Major BUC Cr Max HW ID Spectrum FEC Code Rate Xmt Level Max Test Active BUC Cr Min HW S N Filter Mode RS Mode FSK Rmt M C Hardware BUC FSK Filter Alpha RS n Rmt Parameter 1 AUPC Mode RS k Rmt Parameter 2 AUPC Eb No RS Depth Rmt Parameter 3 AUPC Max Lvl Dif Encoder AUPC Min Lvl Scrambler Mute Impedance The tables below are organized with general Rules of Thum...

Страница 89: ...9 Time Entered as 24 hour time format Current Time Status Date 09 10 12 Date Entered current date in mm dd yy format Current Date Status Model M7 Series Read Only Read from Installed Option Modem Model Number Status Controller ID M7009001A 1r1 00 Read Only Read from Installed Option ID of Installed Controller in Slot 0 Status RF 1 ID M709002A 1r1 00 Read Only Read from Installed Option Installed M...

Страница 90: ...to 99 Selection Numeric 1 to 99 Location number of a stored modem configuration to recall Config Store Factory 1 to 99 Selection Numeric 1 to 99 Location number to store the current configuration to recall at a later time Config Auto Restore Disabled Selection 0 Disable 1 Enable Set a modem configuration defined in the Config Restore menu based on loss of rcv carrier for the time set in the Config...

Страница 91: ...Full Password Datum Alpha Numeric Enter up to 24 characters HTTP full access password HTTP Activity Blink Online Lamp Selection 0 None 1 Beep 2 Blink Online Lamp 3 Beep Blink Online Audible beep and or Online LED Blink on HTTP port activity HTTP Web Version 1 1 1q Read Only Read from Web Browser Display of the current Web Browser version SNMP Server Mode Full Access Selection 0 Disable 1 Read Only...

Страница 92: ...trol DHCP Enable Selection 0 Disable 1 Enable IP Address of the IP Control Port is selected via DHCP or manually IP Control Address 192 168 002 122 Numeric Enter IPv4 address If DHCP is Disabled manually enter the IP Control Port IPv4 Address IP Control Network Mask 255 255 255 000 Numeric Enter IPv4 Network Subnet Mask If DHCP is Disabled manually enter the IP Control Port IPv4 Subnet Mask IP Con...

Страница 93: ... M7 Binary Packet Selection 0 VT100 1 Quiet VT100 2 M7 Binary Packet Remote control mode type Control RS 232 Address 1 Numeric 0 to 254 0 address disabled 255 global Address used to access this unit via remote control and USB packets Control RS 232 Rate 9600 bps Selection 0 to 8 selects 300 to 57 600 bits per second Remote port bit rate Control RS 232 Format N 8 1 Selection 0 N 8 1 1 E 8 1 2 O 8 1...

Страница 94: ...tput on rear panel alarm connector pins 5 and 6 on connector J6 on the rear panel Monitor Full 5 000V Numeric 1 0V to 10 0 V Full scale setting for maximum output voltage Monitor Output Slope Positive Numeric 0 Positive 1 Negative Setting the slope of the Monitor output to be X and Y or X and Y Monitor Input Threshold 1 2 V Numeric 0 5V to 49 5V in 0 1V steps Sets the trigger threshold for the ana...

Страница 95: ...og 2 Log Send Alert Selects whether to log the activity of any Minor alarms Event Major Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the activity of any Major alarms Event Test Active Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the status of the Test Active alarm Event Hardware Alarm Log Selection 1 Log 2 Log Send Alert S...

Страница 96: ...t power DC voltage alarm Alarm Beep Mask On Alarm A B Selection 0 None 1 On Alarm A 2 On Alarm B 3 On Alarm A B Selects if alarm causes a unit audible beep Alarm Test Active Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Hardware Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Test ...

Страница 97: ... Modulator Test Status Status BUC Power Option 48v 3 13A Read Only Read Only Installed Internal BUC Power Supply M7LT only Status HW Type Std IF Modulator Read Only Read Only Identification of installed Modulator hardware Status HW ID M709002A 1r1 00 Read Only Read Only Part number of installed Modulator hardware Status HW S N 100032 Read Only Read Only Serial number of installed Modulator hardwar...

Страница 98: ...tion 3 forces Cxr off after power fail IF Impedance 75 Ohm Selection 0 50 1 75 Transmit IF impedance Data Bit Rate 4 096000Mbps Numeric 1 2 kbps to 59 04 Mbps in 1 bps resolution Entered in kbps but display will change to Mbps if the rate is 1000 000 kbps or higher Modulator Bit Rate The max and min are determined by settings and options Data Symbol Rate 2 730667Msps Numeric 2 4 ksps to 14 76Msps ...

Страница 99: ...oder Enabled Selection 0 Disable 1 Enable Vit R S Differential Encoder Not shown or settable except in special modes Data Scrambler Auto Selection 0 Disable 1 Auto 2 V 35 3 Intelsat 4 EFD 5 Alt V 35 6 Alt Intelsat 7 Alt RS EFD 8 RS Sync Vit R S Scrambler types Types are added if optional hardware is installed The Auto mode uses IESS standards to automatically switch to use synchronous scramblers p...

Страница 100: ...UC in the M7LT BUC Voltage Out 23 2 V Numeric Read Only Displays Voltage Output on Transmit Cable in the M7LT BUC Current 3 42 A Numeric Read Only Displays Current draw of BUC in the M7LT BUC 10 MHz Ref Enabled Selection 0 Disabled 1 Enable Selects if modem s current 10 MHz reference to be supplied to a BUC in M7L LT BUC LO Frequency 13050 000000MHz Numeric 0 to 49999 999996 MHz Selects BUC LO fre...

Страница 101: ...t Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the activity of any Major alarms Event Test Active Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the status of the Test Active alarm Event Hardware Alarm Log Selection 1 Log 2 Log Send Alert Selects whether to set an alert for the status of the Hardware alarm Alarm Carrier Mask Mute Alarm A...

Страница 102: ...of the modem Feature Modulation B Q OQ 8 PSK 8 16QAM Read Only N A Shows the modulation capability of the modem Feature FEC Vit TCM RS L16k T16k Read Only N A Shows the FEC capability of the modem Feature Activation 00000000000000000000 Numeric 20 characters Allows entry of a Feature code to activate new features Table 3 7 Demodulator Parameter Detail Demodulator Parameters Representation Type Ent...

Страница 103: ...eive carrier acquisition range in kHz IF Sweep Mode Fast Selection 0 Fast 1 Search Fast acquisition mode is standard method Search acquisition parameters are set in the Sweep Time menu IF Sweep Time 10 0 Sec Numeric 0 0 to 99 9 Seconds 0 Disables Narrow Sweep Narrow Sweep time applicable to Search sweep mode only IF Modulation QPSK Selection 0 BPSK 1 QPSK 2 OQPSK 3 8PSK 4 8QAM 5 6 16QAM Modulation...

Страница 104: ...rbi 2 TCM 3 N A 4 TPC 5 LDPC Reed Solomon is enabled below Please note that available FEC options are determined by installed options and other modem settings Data FEC Option Normal Selection 0 Normal 1 Swap C0 C1 Vit Sets the bit compatibility of the Viterbi FEC decoder Data FEC Code Rate 3 4 Selection 0 1 2 1 3 4 2 5 6 3 7 8 0 2 3 in 8PSK TCM Vit Sets the code rate of the Viterbi FEC decoder Dat...

Страница 105: ...2 V 35 3 Intelsat 4 EFD 5 Alt V 35 6 Alt Intelsat 7 FEC Sync 8 FEC Sync TPC Descrambler types Types are added or removed depending on the selected FEC mode The Auto mode uses IESS standards to automatically switch to use synchronous descramblers part of R S and TPC Data FEC Option 4k Block Selection 0 256 Block 1 512 Block 2 1k Block 3 2k Block 4 4k Block 5 8k Block 6 16k Block LDPC Sets the LDPC ...

Страница 106: ...erting or non inverting LNBs in the M7LT Low side LO provides a non inverted spectrum Event Carrier Lock Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Carrier Lock alarm Event Eb No Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Eb No alarm Event Level Alarm Do Not...

Страница 107: ...arm Test Active Mask To Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Hardware Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm LNB Power Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Only shown in M7LT Alarm LNB Current Max 300...

Страница 108: ...er is active 100 is buffer center Status I O Rcv Data Active Ok Read Only N A Status I O Signaling rts CTS DCD dtr DSR Read Only N A Synchronous Interface signaling status Lower case indicates not active status upper case indicates active status Status ESC Signaling rts CTS DCD dtr DSR Read Only N A Engineering service channel interface signaling status Lower case indicates not active status upper...

Страница 109: ...trol CXR Interface RTS line control I O CTS Normal Selection 0 Normal 1 Force Active Interface CTS line control I O DCD Normal Selection 0 Normal 1 Force Active Interface DCD line control I O DTR Ignore Selection 0 Normal 1 Ignore Interface DTR line control I O DSR Force Active Selection 0 Normal 1 Force Active Interface DSR line control I O RTS Monitor to Alarm A Selection 0 Disabled 1 to Alarm A...

Страница 110: ...bled Selection 0 Disabled 1 Enabled Enable the backward alarms Rcv Mux Overhead Ratio 3871 4096 Read Only N A Shows current data to aggregate ratio for mux ESC Async Mode Auto Overhead Rate Selection 0 ESC port ESC Async Port RS 232 Selection 0 RS 232 1 RS 485 2 wire 2 RS 485 4 wire 3 RS 485 Drvr On Physical ESC port type ESC Async Rate 9 600 kbps Selection 0 to 7 selects standard rates 0 300 kbps...

Страница 111: ...t Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Backward alarm Event BER Loss Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the BER Loss alarm Event Buffer Slip Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Buffer Slip ...

Страница 112: ...larm A B Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Test Ter Loopback Disabled Selection 0 Disable 1 Enable Interface terrestrial loop back send input to receive output Test Sat Loopback Disabled Selection 0 Disable 1 Enable Interface satellite loop back receive output to send input Test BER I O Satellite Selection 0 Satellite 1 Terrestrial BERT Transmit...

Страница 113: ...rom the satellite reference to the internal modem reference standard Feature Options None Read Only N A Feature Activation 00000000000000000000 Numeric 20 characters Allows entry of a Feature code to activate new features Table 3 9 I7 IP Interface Parameter Detail I7 Interface Parameters Representation Type Entry Description Status IP Online OK Read Only N A Interface Status Status GbE Connected 1...

Страница 114: ...r Model Number IP Q7 Software Ver Vyatta 3 03 Read Only N A I7 Controller software type and version Stats Send Data PPS 0 015 kpps Read Only Stats Send Data Packets 3 125E3 Read Only Press Edit then Enter to reset the counter Stats Send Data Bytes 2 000E5 Read Only Press Edit then Enter to reset the counter Stats Send Data Usage 12 66 Read Only Press Edit then Enter to reset the counter Stats Send...

Страница 115: ...Edit then Enter to reset the counter Stats Rcv MCC Bytes 0 Read Only Press Edit then Enter to reset the counter Stats Rcv MCC Usage 0 00 Read Only Press Edit then Enter to reset the counter Stats Rcv Idle Packets 2 156E4 Read Only Press Edit then Enter to reset the counter Stats Rcv Idle Bytes 1 380E6 Read Only Press Edit then Enter to reset the counter Stats Rcv Idle Usage 87 33 Read Only Press E...

Страница 116: ...m Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Rcv Data alarm Event Ref Relay Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Future Option Selects whether to log the change in status of the Ref Relay alarm Event Minor Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the activity of a...

Страница 117: ...election 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Hardware Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Test Sat WAN Loopback Disabled Selection 0 Disabled 1 Enabled Interface satellite loop back receive output to send input Test Ter WAN Loopback Disabled Selection 0 Disabled 1 Enabled Interface ter...

Страница 118: ...atus Hardware Type E7 Express Interface Read Only N A Indicates the type of the active interface Status Hardware Ver M709017A 1r9 91 Read Only N A Indicates the part number of the active interface Status Hardware S N 100360 Read Only N A Indicates the serial number of the active interface I O Port 1 Mode Data I O Selection 0 Disable 1 Data I O 2 Dmd Output I O 3 Dmd Input I O Sets the mode of the ...

Страница 119: ... 1 1000BASE T 2 100BASE T Full Duplex 3 100BASE T Half Duplex 4 10BASE T Full Duplex 5 10BASE T Half Duplex Sets the connection type of the Ethernet Port I O Port 3 VLAN ID Disabled Numeric Valid ID 1 to 4094 0 Disabled 4095 reserved VLAN ID for Port 3 I O Port 4 Mode Data I O Selection 0 Disable 1 Data I O 2 Dmd Output I O 3 Dmd Input I O Sets the mode of the Ethernet Port I O Port 4 Connection A...

Страница 120: ...control QOS WAN Drop All 2938 ms Numeric Set value in mSec Sets the time before a the WAN buffer will drop all packets that overfills the buffer Stats Send Data PPS 38 871 kpps Read Only Indicates the Send rate of the Ethernet Data traffic Stats Send Data Packets 7 812E7 Read Only Press Edit then Enter to reset the counter Indicates the number of Ethernet packets sent Stats Send Data Bytes 9 374E9...

Страница 121: ...link that is used by the Ethernet port Stats Rcv MCC Packets 3 413E3 Read Only Press Edit then Enter to reset the counter Indicates the number of MCC packets received Stats Rcv MCC Bytes 9 374E4 Read Only Press Edit then Enter to reset the counter Indicates the number of MCC Bytes received Stats Rcv MCC Usage 18 56 Read Only Press Edit then Enter to reset the counter Indicates the percentage of th...

Страница 122: ...larm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the IO alarm Event Send Data Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Send Data alarm Event Rcv Data Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Rcv...

Страница 123: ...v interface 0 Disable Alarm Ref Relay Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Future Option Selects destination of alarm Alarm Test Active Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Hardware Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Test S...

Страница 124: ...ace Status Hardware ID M709014A 100r1 00 Read Only N A Indicates the part number of the active interface Status Hardware S N 100048 Read Only N A Indicates the serial number of the active interface I O Port 1 Mode E1 Balanced 120 Ohm Selection 0 Disable 1 E1 Balanced 120 Ohm 2 E1 Unbalanced 75 Ohm Interface Port 1 electrical mode I O Port 1 Send Coding HDB3 Selection 0 AMI 1 HDB3 Sets the line cod...

Страница 125: ...Full E1 Sets the Framing of the Port 2 E1 Send Data I O Port 2 Send Nx64 2048 000 kbps Numeric 64 000 to 2048 000 kbps in 64 kbps steps If Send Framing is set to Full E1 2048 000 is the only setting Sets the Interface Port 2 Send data rate I O Port 2 Rcv Coding HDB3 Selection 0 AMI 1 HDB3 Sets the line coding of the Port 2 E1 Rcv Data I O Port 2 Rcv Framing Full E1 Selection 0 Full E1 Sets the Fra...

Страница 126: ...meric 0 000 Disable 0 300 to 29428 110 kbps Only in Custom or Advanced Mode Selects framing resources committed to MCC Modem Control Communications Rcv Mux Alarm Channel Enabled Selection 0 Disabled 1 Enabled Enable the backward alarms Rcv Mux Overhead Ratio 16384 16379 Read Only N A Shows current data to aggregate ratio for mux ESC Async Mode Auto Overhead Rate Selection 0 Disable 1 Auto Overhead...

Страница 127: ...Log 2 Log Send Alert Selects whether to log the change in status of the Port 1 I O activity alarm Event I O Port 2 Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Port 2 I O activity alarm Event Backward Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Backward alarm E...

Страница 128: ...m A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Hardware Mask to Alarm A B Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Feature Options None Read Only N A Feature Activation 00000000000000000000 Numeric 20 characters Allows entry of a Feature code to activate new features Table 3 12 High Speed Serial Interfa...

Страница 129: ...n 0 Internal 1 TT Clock 2 Rcv Clock 3 External Transmit Clock Source I O Send Data Normal Selection 0 Normal 1 Inverted Transmit Data Inversion I O Rcv Clock Source Dmd Rcv Clock Selection 0 Dmd Rcv Clock 1 Internal 2 Mod Clock 3 TT Clock 4 External Receive Clock Source Dmd Rcv Clock selection disables the buffer I O Rcv Buffer Delay 2 0000 ms Numeric 0 0001 to 999 9999 ms Sets the size of the Rcv...

Страница 130: ...le 1 to 7 selects standard rates 0 300 kbps 38 4 kbps Only in Custom or Advanced Mode Selects framing resources committed to ESC Communications Rcv Mux MCC Rate 0 300 kbps Selection 0 Disable 1 to 7 selects standard rates 0 300 kbps 38 4 kbps Only in Custom or Advanced Mode Selects framing resources committed to MCC Communications Rcv Mux Alarm Channel Enabled Selection 0 Disabled 1 Enabled Enable...

Страница 131: ...ctivity alarm Event Send Data Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Send Data activity alarm Event Rcv Data Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert Selects whether to log the change in status of the Rcv Data activity alarm Event Backward Alarm Do Not Log Selection 0 Do Not Log 1 Log 2 Log Send Alert ...

Страница 132: ...able Alarm Backward Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm BER Loss Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Test Active Mask to Alarm A Selection 0 None 1 to Alarm A 2 to Alarm B 3 to Alarm A B Selects destination of alarm Alarm Hardware Mask to Alarm A B Selec...

Страница 133: ...ror free seconds in the active test measurement if Test Rcv BER is active Test BER Erred Sec 15 Read Only Enter to restart test Errored seconds in the active test measurement if Test Rcv BER is active Test BER Total Sec 8485 Read Only Enter to restart test Total seconds in the active test measurement if Test Rcv BER is active Test Send Bit Offset 0 PPM Read Only N A Monitor of the frequency offset...

Страница 134: ... controllers on a single control link NOTE Special considerations are required when legacy modems are to be connected on the same command line with the latest modes See Appendix B for more information 3 7 Modem Configuration Configuring the modem operating parameters is essential before placing the unit into service The modem operating parameters may be set up using the front panel the USB or the ...

Страница 135: ...ther not installed or not enabled the preferred scrambler and descrambler is automatically selected to IESS 308 or IESS 309 See below for the difference When TPC is enabled but the IBS multiplexer option is not installed or not enabled Auto uses the new Scrambler and Descrambler option 7 TPC Sync this uses a synchronous scrambler specific to the TPC Codec When both TPC and IBS multiplexer are inst...

Страница 136: ...e final PA removing it and going to a low power state when the 10 MHz is absent This reference is activated in the Mod BUC 10 MHz Ref parameter NOTE See the specifications in Appendix A for the exact reference stability aging phase noise and level specifications 3 7 6 Using the M7L LT LNB Reference Control The M7L LT modem contains a high stability 10 MHz OCXO reference oscillator designed to prov...

Страница 137: ...it Frequency Control When the BUC Local Oscillator or LO frequency is entered into the Mod BUC LO Frequency parameter the Mod IF Frequency parameter requires entry of transmit frequency at the actual satellite uplink RF frequency To return to using L Band IF frequencies set the Mod BUC LO Frequency parameter to 0 BUC Transmit Gain The Mod BUC Xmt Gain parameter is used to set the desired gain of t...

Страница 138: ...range can be set to a low value which will slightly reduce acquisition time especially at low data rates Conversely if system frequency offsets are not known or change over time the initial acquisition range should be set very wide to allow locking to a carrier well outside the typical range CAUTION If the acquisition range is set too small and the system offsets drift then a carrier may be locked...

Страница 139: ... redundancy switch request A basic representation of the alarm system functioning is shown in the Figure 3 43 Individual Alarms Processing Matrix Outputs Unit Alarms Modulator Alarms Demodulator Alarms Interface Alarms Reference Test Active Hardware Carrier Bit Clock Test Active Hardware No Data BER Loss Test Active Option Fail Carrier Lock Low Level Low Eb No Test Active Hardware No Data Summary ...

Страница 140: ... front panel or remotely They are the unit serial number and the Unit Name or Station ID The serial number is set at the factory and cannot be changed but the Station ID can be set and changed whenever necessary This field allows identification of the modem with up to 16 characters The Station ID can be set in the front panel Unit Status Station ID parameter and pressing Edit to begin entry Each c...

Страница 141: ...o multipoint data transfer The I7 is not a fixed dumb interface it is a full sophisticated router class device and therefore requires configuration The purpose of this section is to introduce the IP interface cards that use the Q7 processor based platform for routing and bridging Detailing the full capabilities of these IP cards is beyond the scope of this section Our goal here instead is to 1 Int...

Страница 142: ... based on the Debian Sqeeze distribution of Linux with Vyatta router overlay and Datum Systems additions specific to satellite modem use 4 Packages are the Linux term for software programs and drivers The entire Linux system consists of a small set of kernel and base programs with many packages added to provide the particular capabilities needed for its intended use Most of the drivers and virtual...

Страница 143: ...of 255 255 255 0 is shown and entered as 24 This mask prefix refers to the number of leading 1 s in the mask The standard operation of the modem front panel entries is to replace the first address in the Vyatta configuration If there is no address currently then the front panel entry will add that as the first address The polling software does this by detecting the front panel change and first del...

Страница 144: ... which can be read on the modem front panel display in the interface section If this is not within your network either set a new IP address on the modem front panel or log into the console port of the Interface board at 9600 N 8 1 and use Vyatta to set an IP address NOTE On the modem front panel you must select either the Mod or Dem tab below the LCD display first then make sure the transmit and r...

Страница 145: ...o 4 If a port is not being used the port can be disabled by the menu Intf I O Port x Mode Disabled x 1 to 4 If the E7 interface is installed in a multi demod M7 the configuration of the ports will need to reflect the data flow from the multi demod s to the central router This will be typical of a point to multipoint network where the Hub site has a single modulator and multiple demodulators In thi...

Страница 146: ...d full congestion of the WAN traffic This is set in the menu item Intf QOS WAN Drop None for the non congested state and Intf QOS WAN Drop All for the congestion point where all incoming packets will be dropped until the QoS buffer drops below this setting Between the QoS buffer settings of Drop None and Drop All there is an expectation that some packets will be dropped in line with the QoS Mode T...

Страница 147: ...Send WAN Protocol M7 HDLC and Intf Rcv WAN Protocol M7 HDLC for operation in a network that has all M7 modems installed Configuration of the proper WAN Mode and WAN Protocol will automatically set the proper MAC learning and packet forwarding to prevent duplicate MAC addresses and enable proper network operation 3 8 2 4 1 Point to Point PtP Satellite Network Figure 3 45 shows a typical PtP satelli...

Страница 148: ...own in Figure 3 47 Figure 3 47 Four site PtMP Hub and one Remote site example The E7 interface configuration in the Hub M7s must be configured based on the size of the network and the physical position within the Hub cabling configuration The menu setting for the E7 interface in the hub M7 modulator would be Intf Send WAN Mode Hub Bridge PTMP Intf I O Port 1 Mode Data I O Intf I O Port 4 Mode Dmd ...

Страница 149: ... M7s 3 8 2 4 3 Mesh Satellite Network Figure 3 48 shows a typical four 4 site MESH satellite network that could be used for connecting multiple remote locations with a single satellite hop In a PtMP network multiple remote sites can be connected but all of the traffic would need to transit the Hub location which would cause two 2 satellite hops Real time applications operate better with less delay...

Страница 150: ...M7 multi demod 2 and 3 would be Intf Rcv WAN Mode Intf I O Port 4 Mode Dmd Output I O The physical connections shown in Figure 3 34 are specific to this example and are dependent on the number of sites in the network This example is a very simple Mesh network example and a more complex network with more remote sites would require additional M7 hardware at each site and careful attention to the E7 ...

Страница 151: ...r loopback testing Loopback functions are set in menu item Intf Test Sat WAN Loopback for over the satellite testing and menu item Intf Test Ter WAN Loopback for local interface checkout The E7 provides extensive live statistics of the link performance Statistics on Packets per Second PPS sent and received number of data MCC and idle packets and Bytes sent and received the percentage of the link t...

Страница 152: ... density so that the receiving equipment is able to maintain synchronization with the received signal The G7 supports two E1 link line codes AMI coding HDB3 coding 3 8 3 3 Other Interface Specifications Balanced 120 ohm impedance on a RJ48c Port 1 and Port 2 Unbalanced 75 ohm impedance using J23 and J24 for Port 1 and a connector adapter for Port 2 Jitter performance is in according to ITU G 823 3...

Страница 153: ... This option allows a station derived standard clock rate to be used to clock data out of the FIFO 4 Terminal Timing locked to the Terminal Timing input pins 24 11 NOTE Bit timing options for optional interfaces are discussed in the applicable interface appendix A simplified block diagram of the Modulator clock sources for a Synchronous Interface is shown in Figure 3 50 Transmit Clock Sources Demo...

Страница 154: ...ked to an External Reference applied at the rear panel J1 Refer to Section 3 7 4 for details on how to activate the External Reference 4 External an external clock at the bit rate applied on pins 9 and 21 of the overhead channel interface connector J10 This option allows a station derived standard clock rate to be used to clock data out of the FIFO A simplified block diagram representation of the ...

Страница 155: ...he selections available for clocking the data in and out of the FIFO buffer The Receive FIFO operation can be set from the front panel or remote control and consists of selecting the Intf I O Rcv Clock Source parameter to something other than Dmd Rcv Clock and the Intf I O Rcv Buffer Delay parameter to the desired delay in milliseconds The processor computes the Intf I O Rcv Buffer Size parameter ...

Страница 156: ...ould be selected for the modulator timing option 3 9 4 Master Master In this network configuration both stations are considered a master This would be required for any connection between local networks that operate on their own network timing standard This is typical within Telco networks running G 703 as an interface at the modem At both ends of the satellite link the transmit timing is typically...

Страница 157: ... performance on each of the return links independently There must be safeguards built into any AUPC system to limit the automatic maximum and minimum power output level changes Other safeguard controls are built into the operating control software to limit response times and detect adverse operating conditions The AUPC selection parameters and their descriptions are shown in Table 3 14 Table 3 14 ...

Страница 158: ...mote can be enabled in a single direction or in both directions as required When operating AUPC Remote in a single direction the MCC must be enabled in only the direction necessary to return Eb No information to the controlled transmit modem 3 10 1 1 1 Site 2 AUPC Setup 1 Set the Intf MCC Mode parameter to Full Access 2 Set the Intf MCC Send Rate Limit parameter to 0 500 kbps or higher 3 Set the I...

Страница 159: ...er to the desired level Determine the value for this parameter by calculating the minimum power that is allowed to prevent the link from dropping below the operating threshold but should be several dB below the nominal operating point for margin e g 15 0 dBm The PtP link should now be operating and using bidirectional AUPC that will adjust both transmit output power levels in order to keep the dis...

Страница 160: ... 1 Site A AUPC Local Setup 1 Determine the current receive Eb No at a sampling of the remote sites during clear sky condition 2 Read Site A Eb No 3 Set the Mod IF AUPC Mode parameter to Enabled 4 Set the Mod IF AUPC Eb No parameter to that desired value e g 9 0 dB 5 Set the Mod IF AUPC Max Level parameter to the desired level Determine the value for this parameter by calculating the maximum power ...

Страница 161: ...mote site for transmit power adjustment to maintain the set Eb No level for the link NOTE The configuration settings in this section are specific to the configuration shown in Figure 3 54 The actual network configuration may be different and will require different settings of the MCC Send and Rcv addresses at the remote sites and Remote MCC addresses at the Hub site Mod IF AUPC Mode Enabled Unit I...

Страница 162: ...r A AUPC PtMP Setup 1 Set the Unit IP Control Address parameter to be in the same subnet at the Hub modulator but not the same address as any other unit connected to the LAN 2 Set the Unit IP Control M C Port Number parameter to 9101 Port 9101 is the default port and this can be set per network requirements BUT all units in the AUPC PtMP configuration MUST be set to the same port number 3 Set the ...

Страница 163: ...Disable 2 Set the Intf MCC Mode parameter to Full Access 3 Set the Intf MCC Send Rate Limit parameter to 0 500 kbps or higher 4 Set the Intf MCC Send Address and Intf MCC Rcv Address parameters to 1 for this example The setting of this address can be any address between 1 and 254 but match the Demod IF AUPC Remote MCC Address parameter settings of the Dual Demodulator A Demod 1 5 Set the Mod IF AU...

Страница 164: ...Mod IF AUPC Min Level parameter to the desired level Determine the value for this parameter by calculating the minimum power that is allowed to prevent the link from dropping below the operating threshold but should be several dB below the nominal operating point for margin e g 15 0 dBm 3 10 3 1 7 Remote Site 4 AUPC PtMP Setup 1 Set the Mod IF AUPC Mode to Enabled 2 Set the Demod IF AUPC Remote Pa...

Страница 165: ...Monitor Output Operation The modem has a built in function to output an analog voltage representing the current value of one of three internal parameters by setting the Unit Monitor Mode parameter The available parameters that can be selected for this output are Receive carrier level Dmd CXR Level Receive Eb No Dmd Eb No Transmit output power level Mod CXR Level The analog output can be tailored t...

Страница 166: ...ntrol the Carrier enable via the RTS status CAUTION Setting this to either Alarm A or B relay will override any other settings going to that alarm relay NOTE It is the responsibility of the user to set alarms properly when using this unique feature This relay control is not de bounced with a time delay therefore a fast changing or chattering RTS signal will cause the relay to chatter 3 12 Storing ...

Страница 167: ... the modulator is the end of transmission signal 5 When the closing flag is detected by the modulator it drops the CTS indicating that a new data message cannot be started When the last data bit is sent the modulator will reassert the CTS signal and turn the carrier OFF 3 14 Built in 1 1 Redundancy Mode Operation Future Option The modem has a built in 1 1 redundancy mode that allows two modems to ...

Страница 168: ... or above the other in the rack This allows the status of the two modems to be seen together and avoids confusion CAUTION Care should be taken that both units are not turned on in a non redundant configuration with the Y data cable installed This will result in the two unit s data output drivers possibly conflicting and causing damage During configuration of the primary unit several new parameters...

Страница 169: ...rently Off Line will present its status on the lower line of the LCD display as one of two messages Standby OK The offline modem is not faulted OFFLINE ALARM The offline modem is in an alarm state 3 14 3 1 Manual Transfer Switch in 1 1 Redundancy Mode The 1 1 transfer process of forcing the two paired modems to swap their on line off line status is a one step process The procedure however can only...

Страница 170: ......

Страница 171: ... or frequency CAUTION The Reference Calibration procedure may result in lost traffic during performance of the calibration The calibration should not be performed in operating links without prior arrangements The factory calibration may be restored by setting the Unit Ref Fine Tune value to 0 4 2 Modem Checkout The following descriptions assume that the full system is in operation and that softwar...

Страница 172: ...SK Code Rate Rate 1 2 Differential Encoder Enabled Scrambler Auto Clock phase Normal Data Normal Clock Source Internal RTS Ignore Carrier Off All Mod Alarms to Relay A Demodulator Carrier Frequency 70 00 MHz Data Rate 256 kbps Modulation QPSK Code Rate Rate 1 2 Differential Decoder Enabled Descrambler Auto Clock phase Normal Data Normal Clock Source Receive Sweep mode Fast Acquisition Range 30 kHz...

Страница 173: ...ed link with DTE equipment that can transmit and verify receipt or preferably a Bit Error Rate Test Set BERT The basic procedure used is to transmit a data signal at one end of the link and sequentially set each of the loop back options Proper reception of the loop back data verifies all components between the source and the loop The simplified diagram below shown in Figure 4 1 show the location o...

Страница 174: ...ion demodulation receive signal processing and connection to the receive interface This loopback is set in IF loop back in Dem Test IF Loopback 4 3 1 4 Far End Satellite Data Loop Back This loopback will test most of the satellite link as well as the functions checked in paragraph 4 3 1 3 above The signal is sent over the satellite or test setup and is looped back at the satellite side of the data...

Страница 175: ...h BERT setting should be the same to operate properly When the Demodulator receive BER Test is enabled there are seven 7 test status items shown in the Interface Test column These seven 7 items are 1 BER The ratio of errored bits to un errored bits since the test began or was last reset Expressed in bits per bit as x yyy E power where the mantissa x yyy is always between 0 and 10 and power is the ...

Страница 176: ...ource of the problem this method will quickly eliminate items from the potential source list The two drawbacks to this method are the availability of extra equipment and the possibility of interaction between two or more equipment items 4 4 1 Symptom The Modem will not acquire the incoming carrier Possible Cause Improper receive input to modem Action Verify all receive cabling is correct Possible ...

Страница 177: ...Action Ensure that the transmit end is properly set and that the receive subsystems are all operating correctly In a small station ensure that the antenna is peaked on the satellite In a Ku Band station intense rain can cause poor receive performance Possible Cause Transmit and Receive scrambler or differential encoder options do not match or not enabled Note The differential encoder in the M7 is ...

Страница 178: ...are in the M7 The first is to replace the internal SD card with a new card that has the updated firmware The second is to update the M7 firmware via the Web Browser interface 4 5 1 Software Update using the Web Browser The following information will provide a step by step process to update the M7 firmware using the Web browser interface Instructions on how to set up and communicate to the M7 via a...

Страница 179: ...7L M7LT Rev 0 05 4 9 Clicking on the Browse button will open a dialog box to allow navigation to the folder location where the file that was saved after it was downloaded from the Datum FTP site Click Update to begin the process to update the M7 firmware ...

Страница 180: ...tatus will show the process of uploading the installation file into an internal memory location The second status will show the process of verification of the installation file that was uploaded into an internal memory location The third status will show the process of extracting the contents of the installation into internal flash memory ...

Страница 181: ...the Login page will display Reenter the login credentials to verify the update process was completed properly In the Unit Test tab the current updated firmware will show in either Firmware Flash 1 or 2 and display Running to indicate it is the operating firmware The previous firmware will be maintained in the other flash location and can be called up if there is an issue with the new update ...

Страница 182: ...re are a couple of ways to insert the feature code into the M7 4 6 1 Using the front panel menu To insert the code go to the Unit Status Feature parameter using the front panel keypad Then enter the 20 digits of the given code directly using the digits on the keypad then press the Enter key If correctly entered the modem will now display the new feature set and list the available modulation modes ...

Страница 183: ...M7 M7L M7LT Modular Satellite Modem Maintenance M7 M7L M7LT Rev 0 05 4 13 Figure 4 3 Modulator Feature Page Figure 4 4 Demodulator Feature Page Figure 4 5 E7 Interface Feature Page ...

Страница 184: ...front panel selection These modes are typified by the modes used in the CDM5xx and CDM6xx series of competitive modems There are several modes that are probably not compatible for several reasons First is that there is no standard for implementation of TPC Second Datum Systems spent a lot of time and development in implementing a full set of TPC parameters i e Rates 1 2 3 4 and 7 8 and insuring th...

Страница 185: ...nitor Mode The slope and polarity are selected using the Zero and Full parameters below this The signal is available at the rear panel on the J5 Alarm Connector pin 5 with the Ground return on pin 6 See Installation Section 2 3 3 Alarm Connection and Operations Section 3 11 for more information on connection and use of the monitor function The AGC has been the classic parameter used for this type ...

Страница 186: ...le the Differential encoder or decoder We only found that occasionally someone disabled it and then had problems locking up to carriers so this capability was initially removed from front panel control All of the latest firmware however now allows this control so you may need to update your firmware 4 7 3 2 How do I enter a number with a minus sign At any time during the Edit process the key will ...

Страница 187: ...ions in FAQ Section E below 4 7 4 Remote Control 4 7 4 1 Where is the ASCII Control packet structure in the M7 The M7 and the PSM 4900 modems do not have an ASCII control packet protocol only the binary packet protocol The SnIP however does have a fairly complete command line driven control method via the M7ctl program In addition the SnIP can potentially control multiple modems connected via its ...

Страница 188: ...If the encoder is turned off the modem has a possibility of locking to a signal with the wrong phase For all normal operation of the modem the Modulator differential encoder and the Demodulator differential decoder must be Enabled The Turbo Product Codes TPC option does not use the differential encoder and when it is enabled the differential encoder and or decoder is turned off and the option is r...

Страница 189: ... Frequency Control AGC Automatic Gain Control ALC Automatic Level Control Alm Alarm Alt Alternate AUPC Automatic Uplink Power Control AUFC Automatic Uplink Frequency Control BER BERT Bit Error Rate Bit Error Rate Test BUC Block Up Converter Cal Calibrate Clk Clock Config Configuration Cntst Contrast CXR Carrier Dem Demodulator Dif Differential ESC Engineering Service Channel Erred Errored FEC Forw...

Страница 190: ...ence Rqst Request RS R S Reed Solomon Type of FEC Sat Satellite SCPC Single Channel Per Carrier SER Symbol Error Rate SnIP Satellite network Interface Processor our name for an Ethernet Interface running Linux SW Sw Switch Sync Synchronous or Synchronization SysClk System Clock Ter Terr Terrestrial Line side of modem TPC Turbo Product Codes Type of FEC Tst Test USB Universal Serial Bus VSAT Very S...

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