Cdm750 manual

Status Info page Status Firmware Info page Status ACM Status page Status IP Statistics page Status BB Statistics page Interfaces Ethernet page Interfaces page TxGraph pages TxHours page shown RxGraph pages RxHours page shown Figure B 1. Figure B 2. Figure B 3. Figure B 4. Figure B 5. Figure B 6. Figure B 7. Figure B 8. Figure C 1. Downlink Margin vs. Average Link Availability Figure C 2. User Throughput vs.

Time and Fades Figure C 3. Figure C 4. Single Hop Latency Figure C 5. Spectral Efficiency vs. Figure C 6. Figure C 7. Figure C 8. Figure D 1. Conceptual Block Diagram Figure D 2. Figure D 3. Figure D 4. Duplex Link Optimization Figure D 5.

DoubleTalk Carrier in Carrier Signals Figure D 6. Figure F 1. Networking Loop with Switches Figure F 2. Figure F 3. Figure G 1. Figure H 1. Figure H 2. Figure H 3. Figure H 4. This is an informational document intended for the persons responsible for the operation and maintenance of the CDM Comtech EF Data welcomes comments and suggestions regarding the content and design of this manual.

Comtech EF Data acknowledges that all trademarks are the property of the trademark owners. A NOTE gives important information about a task or the equipment. References to the old designations may be shown when depicting actual text e. All other references in the manual refer to EIA designations.

Metric conversion information is provided at the inside back cover of this manual to assist the operator in cross referencing non Metric to Metric conversions. The shield must be bonded to the back shell. Neutralleiter Sicherung. For additional symbols, refer to Warnings, Cautions and Notes listed earlier in this Preface.

Comtech EF Data products are warranted against defects in material and workmanship for a specific period from the date of shipment, and this period varies by product. In most cases, the warranty period is two years. During the warranty period, Comtech EF Data will, at its option, repair or replace products that prove to be defective. Repairs are warranted for the remainder of the original warranty or a 90 day extended warranty, whichever is longer. Contact Comtech EF Data for the warranty period specific to the product purchased.

For equipment under warranty, the owner is responsible for freight to Comtech EF Data and all related customs, taxes, tariffs, insurance, etc.

Comtech EF Data is responsible for the freight charges only for return of the equipment from the factory to the owner. Comtech EF Data will return the equipment by the same method i. All equipment returned for warranty repair must have a valid RMA number issued prior to return and be marked clearly on the return packaging.

Comtech EF Data strongly recommends all equipment be returned in its original packaging. The warranty does not apply to any part of a product that has been installed, altered, repaired, or misused in any way that, in the opinion of Comtech EF Data Corporation, would affect the reliability or detracts from the performance of any part of the product, or is damaged as the result of use in a way or with equipment that had not been previously approved by Comtech EF Data Corporation.

The warranty does not apply to any product or parts thereof where the serial number or the serial number of any of its parts has been altered, defaced, or removed. The warranty does not cover damage or loss incurred in transportation of the product. The warranty does not cover replacement or repair necessitated by loss or damage from any cause beyond the control of Comtech EF Data Corporation, such as lightning or other natural and weather related events or wartime environments. The warranty does not cover any labor involved in the removal and or reinstallation of warranted equipment or parts on site, or any labor required to diagnose the necessity for repair or replacement.

The warranty excludes any responsibility by Comtech EF Data Corporation for incidental or consequential damages arising from the use of the equipment or products, or for any inability to use them either separate from or in combination with any other equipment or products.

A fixed charge established for each product will be imposed for all equipment returned for warranty repair where Comtech EF Data Corporation cannot identify the cause of the reported failure. Comtech EF Data shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Be prepared to provide the product model number and its serial number. From the. Shipping charges should be prepaid. The CDM Advanced High Speed Trunking Modem Figure 1 1 is intended for network operators, enterprise users, and service providers requiring maximum throughput while using minimal satellite resources in point to point links. The CDM architecture allows efficient networking and transport over satellite links while supporting a wide range of applications and network topologies.

All non volatile memory is provided by both onboard and Compact Flash devices. This design provides carrier class reliability and high speed, purpose driven processing.

On the Tx transmit side: Transmit data from the Ethernet interface is converted for further processing. Synchronous data interfaces are mapped into the DVB S2 frame directly. Transmit data from non IP interfaces, like the G. In MultiStream mode, all data interfaces are encapsulated in the low overhead GSE structure and multiplexed to form an aggregated carrier. The data is sent to the Rx side of the Ethernet interface for user access via an RJ 45 connector.

Similarly, MultiStream traffic is decapsulated and demultiplexed to form the original data streams. Verification: The CDM includes many test modes and loopbacks for rapid verification of the correct functioning of the unit. Of particular note is the IF loopback, which permits the user to perform a quick diagnostic test without having to disturb external cabling.

During the loopback, all of the receive configuration parameters are temporarily changed to match those of the transmit side, and an internal RF switch connects the modulator output to the demodulator input.

When normal operation is again selected, all of the previous values are restored. Monitor and Control Interfaces: The unit is managed through multiple interfaces providing options for both in band and out of band monitor and control.

On site Firmware Updates: Field update of the operating system firmware is possible through file upload via satellite or the Ethernet port. Handles at the front allow easy placement into and removal from a rack. The unit can be free standing if desired. This plug in daughter card can either be factory installed at the time of ordering, or field installed by the user. Appendix D. An optional K4 GZip lossless compression card plugs into an internal expansion slot on the modem card. The equipment must be connected to the protective earth connection at all times.

It is therefore imperative that the unit is properly grounded, using the ground stud provided on the unit rear panel, during installation, configuration, and operation. External cables are attached to connectors provided on the rear panel of the unit Figure 1 4. The CRS may not be used with any other data interface, nor can it be used for redundancy in MultiStream mode.

Requires the two carriers in a duplex circuit to share a common frequency. Different symbol rates are. Positive values represent a stronger. Interferer Carrier, and negative values represent a stronger Desired Carrier. Use ESD precautionary procedures when handling the equipment.

Proceed to Sect. In a rack system where there is high heat discharge, provide forced air cooling with top or bottom mounted fans or blowers. Mount the CDM in its assigned position in the rack enclosure. Use, as required:. Follow these steps to install the Radyne style chassis kit:. Slide the CDM into the front of the rack enclosure.

Follow these steps to install the rack slides:. Ensure that the slides properly engage the enclosure-mounted slide rails. Continue to slide the modem into the enclosure to its final operating position. Then, use. Each cable type is typically dedicated to a specific mode of operation.

Not all of these operational interface types may be available with this product. This lockdown design provides secure assembly without over tightening the connection.

The plug shell features internal threads, and has either a knurled outer surface to permit hand tightening of the connection, or hex flats to accommodate torqued installation.

Then, turn the plug clockwise until the jack posts are fully seated within the plug slot. Do not over tighten the connection. BNC plugs and jacks feature a Bayonet Coupling design. The connector pair features multiple rows of pins male side coupled to mating sockets female side. The cable plug and chassis receptacle each feature a D shaped profile that interlock to ensure proper pin orientation and connector seating.

Either chassis receptacle gender features two jack nuts for secure assembly of the cable plug to the chassis receptacle. Whether its gender is male or female, the cable plug features two jack screws for secure connection to the jack nuts provided on the mating chassis receptacle. The jack screws may be hand tightened or tightened with a standard flat blade screwdriver. Connection Instructions: Orient the plug to the receptacle in the proper position.

Press firmly into place. Use the jack screws to secure the plug to the receptacle jack nuts. Do not over tighten. Circular connectors are intended for weatherproof outdoor applications. The connector pairs feature a sleeve lock configuration, with an array of pins male side coupled to mating sockets female side. Connection Instructions: Engage all of the alignment and lock features between the male connector on the interconnection cable and female socket e.

Engage the primary and secondary alignment tabs on the male connector with the mating cutouts on the female socket. Push the male connector into the female socket. The plug for an RJ 45 or RJ 48 cable features a flexible tab.

The RJ 45 or RJ 48 jack features a mating slot. This design configuration assures proper installation and pin orientation. Connection Instructions: Press down the tab on the cable plug, and then insert the plug into the RJ 4 x jack.

Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. Comtech EF Data. MultiStream Mode Operation A—1 A. B—1 B. B—4 B. B—5 B. B—6 B.

B—7 B. B—8 B. C—1 C. C—2 C. C—4 C. C—6 C. C—8 C. C—9 C. C—10 C. C—12 C. C—14 C. C—16 C. C—17 C. C—18 C. C—19 C. C—20 C. D—1 D. D—2 D. D—4 D. D—5 D. D—9 D. D—10 D. D—11 D. D—13 D. D—14 D. D—16 D. D—17 D. D—18 D. D—19 D. D—20 D. F—1 F. F—2 F. F—3 F. G—1 G. G—3 G. G—4 G. H—1 H. H—2 H. C—2 Table C 2. C—3 Table C 3. C—5 Table C 4. C—10 Table C 5.

C—11 Table C 6. C—15 Table D 1. D—7 Table E 1. E—3 Table E 2. B—2 Figure B 2. B—4 Figure B 3. B—4 Figure B 4. B—4 Figure B 5. B—6 Figure B 6.

B—6 Figure B 7. B—8 Figure B 8. B—8 Figure C 1. C—4 Figure C 2. C—5 Figure C 3. C—7 Figure C 4. C—9 Figure C 5. C—12 Figure C 6. C—13 Figure C 7. C—17 Figure C 8. C—19 Figure D 1. D—3 Figure D 2. D—5 Figure D 3. D—6 Figure D 4. D—6 Figure D 5. D—8 Figure D 6. D—9 Figure F 1. F—2 Figure F 2. F—3 Figure F 3. F—4 Figure G 1. G—2 Figure H 1. H—3 Figure H 2. H—4 Figure H 3. H—5 Figure H 4. Reporting Comments or Suggestions Concerning this Manual Comtech EF Data welcomes comments and suggestions regarding the content and design of this manual.

Metric Conversion Metric conversion information is provided at the inside back cover of this manual to assist the operator in cross referencing non Metric to Metric conversions.

Sect 3. Warranty Policy Comtech EF Data products are warranted against defects in material and workmanship for a specific period from the date of shipment, and this period varies by product. Limitations of Warranty The warranty does not apply to any part of a product that has been installed, altered, repaired, or misused in any way that, in the opinion of Comtech EF Data Corporation, would affect the reliability or detracts from the performance of any part of the product, or is damaged as the result of use in a way or with equipment that had not been previously approved by Comtech EF Data Corporation.

Chapter 1. Chapter 4. Appendix A. CDM Dimensional Envelope. The keypad comprises six individual 2 Keypad keyswitches. Data, prompts, and messages are displayed on the VFD. Vacuum The VFD is an active display, with adjustable brightness, showing 3 Fluorescent two lines of 40 characters each.

Nested menus display all available 5. Excludes spectral mask area. Symbol Rate. L-Band Input Level vs. Symbol Rate 1. Different symbol rates are allowed. Positive values represent a stronger Interferer Carrier, and negative values represent a stronger Desired Carrier. Chapter 2. Once opened, inspect the shipment Figure 2 1 : Step Task 1 Keep all shipping materials for storage or reshipment. Inspect the equipment for any possible damage incurred during shipment.

Contact 3 the carrier and Comtech EF Data immediately to submit a damage report if damage is evident. Follow these steps to install the rack slides: Step Task 1 Use the provided mounting hardware to install one slide onto each side of the CDM chassis.

Chapter 3. Feature Description 1 Primary Alignment features 2 Secondary Alignment features 3 Sleeve Lock features Connection Instructions: Engage all of the alignment and lock features between the male connector on the interconnection cable and female socket e. Make guesswork a thing of the past in your operations with video intelligence solutions. Back National Government Security.

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