L-band 1:1 redundancy switch accessory product for use only with comtech ef data cdm-625/a, cdm-840, cdm-750, cdm-760, cdm-570l, cdm-700, cdm-710, cdm-710g, cdm-600l (clm-9600l), and sdm-300l3 modems (148 pages)
L-band 1:1 redundancy switch, accessory product for use only with comtech ef data cdm-625a, cdm-625, h64/h32/h16/h8 heights remote gateways, cdm-850, cdm-840, cdm-760, cdm-750, cdm-570al, cdm-570l, cdm-710gl, cdm-710, cdm-700, cdm-600l clm-9600l, and sdm- (176 pages)
1:1 redundancy switch, accessory product for use only with comtech ef data cdm-qx/qxl and slm-5650/5650a modems (modem firmware and hardware requirements apply) (194 pages)
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Installation and Operation Manual Accessory Product for use only with Comtech EF Data CDM-625, CDM-750, CDM-570, CDM-700, CDM-710, and CDM-710G Modems (Modem Firmware and Hardware Requirements Apply) IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product.
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Errata A Comtech EF Data Documentation Update Original Manual Part Number/Rev: MN/CRS180.IOM REV 8 Errata Number/ PLM Document ID: ER-CRS180-EA8 PLM CO Number: C‐0027990 Comments: The updated information will be incorporated into the next formal revision of the manual. Change: NOTES: 1. CDM-625 and CDM-625A switch configurations are identical. Throughout the manual, replace "CDM-625" with "CDM-625/A". CDM-760 and CDM-750 switch configurations are identical.
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This page is intentionally blank. ER-CRS180-EA8 Rev - This document is not subject to revision/update! PLM CO C-0027990 Page 2 of 2...
TABLE OF CONTENTS TABLE OF CONTENTS ...................... III TABLES .......................... V II FIGURES.......................... V II PREFACE .......................... XI About this Manual ........................ xi Reporting Comments or Suggestions Concerning this Manual .......... x i Related Documents ........................ xi Conventions and References ....................xii Warnings, Cautions and Notes .................... x ii Examples of Multi‐Hazard Notices ..................... x ii Metric Conversion ........................ x ii Recommended Standard Designations.................. x ii Trademarks .......................... x iii Safety and Compliance ...................... x iii Electrical Safety and Compliance ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Table of Contents MN/CRS180.IOM 1.1 Overview ........................ 1–1 1.1.1 Modem Side Connectors..................... 1–2 1.1.2 Antenna Side Connectors ................... 1–3 1.2 Functional Description ..................... 1–3 1.2.1 Operation with CDM‐625/750/570/700/710/710G ........... 1–3 1.2.1.1 1:1 IP Redundancy Data Switching – Functional Description ...... 1–5 1.2.1.1.1 CDM‐570 (with optional IP Module) Managed Switch or Router Modes .. 1–5 1.2.1.1.2 CDM‐625/750/700/710/710G Managed Switch Mode ........ 1–7 1.2.1.1.3 CDM‐625 (with Optional IP Packet Processor) – Router Mode .... 1–10 1.3 Summary of Specifications .................. 1–13 CHAPTER 2. INSTALLATION ................... 2–1 ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Table of Contents MN/CRS180.IOM 4.2.2 Modem‐to‐Switch Control Interface Connection ............ 4–4 4.2.3 Modem‐to‐Switch IF Interface Connection .............. 4–5 4.2.4 Modem‐to‐User Data Interface Connections and Examples ........ 4–6 4.2.4.1 RS‐422/232 Interface Example ................ 4–7 4.2.4.2 HSSI Interface Example .................. 4–7 4.2.4.3 ASI Interface Example .................. 4–8 4.2.4.4 Quad E1 Interface Example ................. 4–9 4.2.4.5 G.703 Balanced Interface Example .............. 4–10 4.2.4.6 G.703 Unbalanced Interface Example .............. 4–10 4.2.4.7 Overhead Interface Example ................ 4–11 4.2.4.8 Engineering Service Channel (ESC) Interface Example ........ 4–11 4.2.4.9 10/100 Ethernet Interface Examples .............. 4–12 ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Table of Contents MN/CRS180.IOM 4.6 Cabling to the CDM‐710 .................. 4–37 4.6.1 Modem‐to‐Switch Control and IF Interface Connection .......... 4–37 4.6.2 Modem‐to‐User Data Interface Kit and Connection Examples ........ 4–39 4.6.2.1 ASI 75Ω Data Interface (CDI‐40) Kit KT/12579 .......... 4–40 4.6.2.2 HSSI Data Interface (CDI‐60) Interface Kit KT/12578 ........ 4–41 4.6.2.3 Gigabit Ethernet Data Interface (CDI‐70) Example ........... 4–42 4.7 Cabling to the CDM‐710G .................. 4–43 4.7.1 Modem‐to‐Switch Control and IF Interface Connection .......... 4–43 4.7.2 Modem‐to‐User Data Interface Kit and Connection Examples ........ 4–45 4.7.2.1 Single G.703 E3/T3/STS‐1 75Ω Data Interface (CDI‐10‐1) Kit KT/12583 .... 4–46 ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Table of Contents MN/CRS180.IOM A.3.8 Modem to User, Overhead User Data ‘Y’ Splitter Cable, (2X) HD‐44M HD‐44F .. .......................... A ‐15 ® A.3.9 Modem to Modem Shielded Multi‐drop CnC Plus, CDM‐625 1:1 Cable, DB‐9M DB‐9M ........................ A ‐16 A.3.10 User to CRS‐180, Coax Cable, RoHS, Type ‘BNC’ 75Ω .......... A ‐17 A.3.11 Modem to User, Optical Gigabit Ethernet Single‐Mode OR Multi‐Mode Cable Assemblies, (2X) Type ‘LC’ (4X) Type ‘LC’ ............ A ‐18 ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Table of Contents MN/CRS180.IOM Figure 4‐5. CDM‐625 HSSI 1:1 Example .................. 4–7 Figure 4‐6. CDM‐625 ASI 1:1 Example .................. 4–8 Figure 4‐7. CDM‐625 Quad E1 1:1 Example ................ 4–9 Figure 4‐8. CDM‐625 G.703 Balanced 1:1 Example .............. 4–10 Figure 4‐9. CDM‐625 G.703 Unbalanced 1:1 Example ............. 4–10 Figure 4‐10. CDM‐625 Overhead 1:1 Example ................. 4–11 Figure 4‐11. CDM‐625 ESC 1:1 Example ................... 4–11 Figure 4‐12. CDM‐625 10/100 Ethernet 1:1 Example – Managed Switch Mode ..... 4–12 Figure 4‐13. CDM‐625 10/100 Ethernet 1:1 Example – Router Mode ........ 4–13 Figure 4‐14. CDM‐625 PMSI 1:1 Example ................. 4–14 Figure 4‐15. CDM‐750 Modem‐to‐Switch Control & IF Connections – KT‐0000160 .... 4–16 Figure 4‐16. CDM‐750 RJ‐45 Gigabit Ethernet 1:1 Example ............. 4–17 Figure 4‐17. CDM‐750 Optical Gigabit Ethernet 1:1 Example .......... 4–18 Figure 4‐18. CDM‐750 Block Diagram: User Modem Switch Traffic ...... 4–19 Figure 4‐19. CDM‐750 G.703 E3/T3 PIIC Interface Kit – KT/12542 ........... 4–20 Figure 4‐20. CDM‐570 Modem‐to‐Switch Control Connections.......... 4–22 Figure 4‐21. CDM‐570 Modem‐to‐Switch 70/140 MHz IF Connections ........ 4–23 ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Table of Contents MN/CRS180.IOM Figure A‐5. Tx/Rx 50Ω Type ‘BNC’ RoHS Coax Cable (CEFD P/N PL/0946‐1) ....... A ‐8 Figure A‐6. 75Ω Type ‘BNC’ User Data Coaxial Cable (CEFD P/N CA/BNC75OHM) ..... A ‐9 Figure A‐7. 1:1 User Data Splitter Cable (CEFD P/N CA/RB10461‐1) ......... A ‐10 Figure A‐8. 1:1 User Data ‘Y’ Splitter Cable (CEFD P/N CA‐0000071) ........ A ‐11 Figure A‐9. 1:1 Quad E1 User Data ‘Y’ Splitter Adapter Cable (CEFD P/N CA‐0000163) ... A ‐12 Figure A‐10. Quad E1 User Data ‘Y’ Splitter Adapter Cable (CEFD P/N CA‐0000164) .... A ‐13 Figure A‐11. Quad E1 User Data ‘Y’ Splitter Adapter Cable Kit (CEFD P/N KT‐0000122) .. A ‐14 Figure A‐12. Overhead User Data ‘Y’ Splitter Cable (CEFD P/N CA‐0000070) ...... A ‐15 ...
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PREFACE About this Manual This manual provides installation and operation information for the Comtech EF Data CRS‐180 70/140 MHz IF 1:1 Redundancy Switch. This is a technical document intended for the persons responsible for the operation and maintenance of the CRS‐180 and its supported modems. Reporting Comments or Suggestions Concerning this Manual Comtech EF Data welcomes comments and suggestions regarding the content and design of this ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM Conventions and References Warnings, Cautions and Notes A WARNING gives information about a possible hazard that MAY CAUSE DEATH or SERIOUS INJURY. A CAUTION gives information about a possible hazard that MAY CAUSE INJURY or PROPERTY DAMAGE. A NOTE gives important information about a task or the equipment. A REFERENCE directs the user to additional information about a task or the equipment. Examples of Multi-Hazard Notices ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM Trademarks Product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged. The user should carefully review the following information: Safety and Compliance Electrical Safety and Compliance The unit complies with the EN 60950 Safety of Information Technology Equipment (Including Electrical Business Machines) safety standard. The equipment is rated for operation at ±12 volts DC. It has a maximum power consumption of 1 Watt, and draws a maximum of 80 mA at +12 volts DC and 120 mA at ‐12 volts DC. The power supply current is, in all circumstances, supplied by either a single Comtech EF Data modem, or a pair of these modems. IF THE UNIT IS OPERATED IN A VEHICLE OR MOVABLE INSTALLATION, MAKE SURE ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM Equipment Connection THE CRS‐180 IS DESIGNED FOR OPERATION ONLY WITH THE COMTECH EF DATA MODEMS LISTED IN THIS MANUAL. THESE MODEMS SUPPLY DC OPERATING CURRENT (ELECTRONICALLY FUSED AND PROTECTED) AND CONTROL SIGNALS FOR THE CORRECT FUNCTIONING OF THIS UNIT. CONNECTION TO OTHER MANUFACTURERS’ EQUIPMENT COULD RESULT IN DAMAGE TO THE UNIT. THE CRS‐180 IS NOT COMPATIBLE WITH OTHER COMTECH EF DATA MODEMS NOT LISTED IN THIS MANUAL. European Union Electromagnetic Compatibility (EMC) Directive (2004/108/EEC) Independent testing verifies that the unit complies with the following standards: • Emissions, EN 55022 Class B – Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment. In a domestic environment, this deive may cause radio interference that requires the user to take adequate protective measures. • Immunity, EN 55082‐1 – Generic Immunity Standard: Residential , Commercial, and Light Industry. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM International Symbols Symbol Definition Symbol Definition Alternating Current Protective Earth Fuse Chassis Ground For additional symbols, refer to Warnings, Cautions and Notes listed earlier in this Preface. European Union RoHS Directive (2002/95/EC) This unit satisfies (with exemptions) the requirements specified in the European Union Directive 2002/95/EC on the Restriction of the use of certain Hazardous Substances in Electrical and ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM 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. 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, ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM 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. Exclusive Remedies Comtech EF Data Corporation’s warranty, as stated is in lieu of all other warranties, ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM Getting Help Review the Warranty Policy before contacting Comtech EF Data Technical Support or Customer Service. Contacting Comtech EF Data Contact Comtech EF Data for: • Technical Support – Product support or training. • Customer Service – Information on returning an in‐warranty or out‐of‐warranty product for upgrade or repair. Be prepared to provide the product model number and its serial ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Preface MN/CRS180.IOM Returning a Product for Upgrade or Repair Step Task Go to the Comtech EF Data Service page 1 (http://www.comtechefdata.com/service.asp) and read the Return Material Authorization section in its entirety. 2 Request a Return Material Authorization Number: • On the Comtech EF Data Service page: Select the Return Material Authorization hyperlink. • On the Comtech EF Data Support page (http://www.comtechefdata.com/support.asp): Click [Send RMA Request] (http://www.comtechefdata.com/rmaform.asp); • Fill out the RMA form completely; • Click [Send Email]. ...
Figure 1-1. CRS-180 70/140 MHz IF 1:1 Redundancy Switch The CRS‐180 70/140 MHz IF 1:1 Redundancy Switch module, shown in Figure 1‐1, is a 50Ω, 70/140 MHz Tx‐Rx IF signal switch designed for use with IF satellite modems in a 1:1 ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM Table 1-1. CRS-180 Application Summary Modem 1:1 Data Switch Other Information* CDM-625 Built into the CDM-625 Firmware 1.1.1 or higher CDM-750 Built into the CDM-750 Firmware 1.1.1 or higher •...
Ref Des Connector Type Function IF Input IF Output Figure 1-3. CRS-180 – Antenna Side Connectors and Ground Lug Functional Description The CRS‐180 70/140 MHz IF 1:1 Redundancy Switch module performs the Tx and Rx coaxial switching required for redundant modem operation with an outdoor BUC and LNB. 1.2.1 Operation with CDM-625/750/570/700/710/710G The CRS‐180 is configured with two modems to form a complete 1:1 redundant modem system. ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM • Third, the online/offline signals are routed from the CRS‐180 to each modem. Based on the modem faults, the CRS‐180 will determine which modem should be Online and Offline. In the event that both modems indicate faults through some malfunction, the CRS‐180 switch will select, by default, Modem ‘A’. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM occurred at the same time (in fact, within a 0.5 second window), and infers that the fault is external. Therefore, no unnecessary switchover is initiated. 1.2.1.1 1:1 IP Redundancy Data Switching – Functional Description 1.2.1.1.1 CDM-570 (with optional IP Module) Managed Switch or Router Modes •...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM unknown to the switch, it sends the packet out all ports and waits for response packets in an attempt to identify which port that particular MAC resides. Once the device responds, the ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM CDM-625/750/700/710/710G CDM-625/750/700/710/710G CDM-625/700/710/710G/750 Figure 1-7. CDM-625/750/700/710/710G 1:1 IP Redundancy Managed Switch Mode – Switchover As shown in Figure 1‐7, in the event of a fault occurring on the Online Modem ‘A’, the following will occur: • Modem ‘A’ goes offline and disables its Ethernet data interface. • Simultaneously, Modem ‘B’ goes online and enables its Ethernet data interface. • Layer 2 Switch ‘A’ senses that Port 4 is no longer active and clears the CAM table entries for that port. •...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM Note the following: 1. The Managed Switch Mode method of redundancy is intended to be equivalent to pulling the Ethernet cable from one port and putting it into a different port on the same switch. 2. For the CDM‐625 modem: The user may configure one of the CDM‐625’s four available ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Introduction MN/CRS180.IOM Whichever modem is online will assume the Traffic IP. When there is a switchover to the backup modem, this modem will now assume the Traffic IP. Per Figure 1‐9, the backup modem will also broadcast a “gratuitous ARP” which will tell all local devices to now associate a new MAC address for the Traffic IP 172.18.10.20. Each device will update their ARP tables and traffic will resume virtually instantaneously. ...
Chapter 2. INSTALLATION Unpacking and Inspection The CRS‐180 70/140 MHz IF 1:1 Redundancy Switch module and its Installation and Operation Manual were packaged and shipped in a reusable cardboard carton containing protective foam spacing. This equipment contains parts and assemblies sensitive to damage by Electrostatic Discharge (ESD). Use ESD precautionary procedures when handling the equipment. Once opened, inspect the shipment: Step Task 1 Keep all shipping materials for storage or reshipment. 2 Check the packing list to ensure the shipment is complete. 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. Review this manual and the pertinent modem’s Installation and 4 Operation Manual carefully to become familiar with 1:1 redundancy ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Installation MN/CRS180.IOM Mounting Figure 2-1. KT/11708 Mounting Panel Kit (for horizontal or vertical mounting) The CRS‐180 is designed to be freestanding, or mounted at the rear of the rack containing the modems using the available Comtech EF Data Mounting Panel Kit KT/11708. As shown in Figure 2‐1, this kit allows the module to be mounted into the rack horizontally or vertically. Otherwise, because of the module’s small size and weight, the user may choose to let the module hang freely, supported by the interfacing cables. 2–2...
Chapter 3. MODEM AND SWITCH CONFIGURATION Overview In order to avoid damage to the modems and CRS‐180 switch, it is important to follow this sequence of configuration: First, • configure the modems for 1:1 redundant operation as outlined in this chapter in Sect. 3.2 through Sect. 3.5. Second, • once the modems have been properly configured for 1:1 redundant operations, set the DIP switches on the CRS‐180 to the correct modem selection, as outlined in this chapter in Sect. 3.6 CRS‐180 Switch DIP Settings. Third, •...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM Configuring CDM-625s for 1:1 Redundancy CDM‐625 Advanced Satellite Modem Installation and Operation Manual (CEFD P/N MN‐CDM625) The CDM‐625 Advanced Satellite Modem automatically detects if it is connected to a 1:1 redundancy system – the steps required to configure both modems are therefore minimal, with some exceptions: •...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM 3.2.2 Carrier-in-Carrier® Redundancy Configuration ® If Carrier‐in‐Carrier (CnC) is utilized, the CnC control setting must be set to Redundancy mode using the CDM‐625 front panel menus. Configuration of the CnC control setting for CDM‐625 1:1 Redundancy is as follows: Step Procedure From the top-level SELECT: menu, navigate each menu level using the ◄► arrow keys and...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM CDM-750 Operation in 1:1 Redundancy CDM‐750 Advanced High‐Speed Trunking Modem Installation and Operation Manual (CEFD P/N MN‐CDM750) The CDM‐750 Advanced High‐Speed Trunking Modem automatically detects if it is connected to a 1:1 redundancy system. With both modems automatically configured for 1:1 operation, the online modem keeps the offline modem updated as online modem configuration changes ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM Notes: 3–6...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM Configuring CDM-570s for 1:1 Redundancy CDM‐570/CDM‐570L/CDMR‐570L Satellite Modem Installation and Operation Manual (CEFD P/N MN/CDM570L.IOM) For correct operation of the CRS‐180, the CDM‐570 Satellite Modems must have the following installed: • Base Modem Firmware Version 1.6.7 (or higher) • IP Module Firmware Version 1.5.4.2 (or higher) • Hardware Revision 3 • This manual also presumes that the CDM-570 has been factory-configured for 50Ω...
Manual (CEFD P/N MN/CDM570L.IOM): Sect. H.6 Cabling with the CDM‐570 IF. While monitoring the Serial console CLI on both modems, observe the following after powering on both modems at the same time (also observe the CRS-180 Online LEDs to see which modem is the Online modem). Online modem CLI displays: 1:1 Redundancy (Auto Detected) Redundancy: PARAM File Connection Established.
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM Figure 3-2. CDM-570 CLI 1:1 Redundancy Configuration screen All configuration changes can only be made to the Online CDM‐570 and will ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM Notes: 3–10...
Setup of the CDM‐700/CDM‐710/CDM‐710G modems for 1:1 IP Redundancy (i.e., when the terrestrial data type is GigE) is as follows: Step Procedure Before connecting the modems to the CRS-180, you will need to first configure the following IP module settings on the modem. From the modem front panel: CONFIG AUX (Redundancy Mode) ENA/DIS set to Disable.
Switchover upon a Unit or Rx Traffic fault Switchover upon a Unit or Tx Traffic or Rx Traffic fault Figure 3-3. CRS-180 Antenna Side – DIP Switches 3–13...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Modem and Switch Configuration MN/CRS180.IOM Notes: 3–14...
Chapter 4. CABLES AND CONNECTIONS Overview When assembling a Comtech EF Data 1:1 Redundancy System, in addition to purchasing the desired modem pair (one Redundant modem, one Traffic modem), the user must also purchase a redundancy kit tailored to that modem choice. This kit provides – in addition to the CRS‐180 70/140 MHz IF 1:1 Redundancy Switch module – all cables and components required for interconnection ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM This page is intentionally blank. ...
4.2.4 for CDM‐625 terrestrial data interface configuration and connection examples and details. Comtech EF Data’s KT‐0000159 1:1 Redundancy Control/IF Interface Cabling Kit is required for control and 70/140 MHz switch‐to‐modem cabling connections: KT-0000159 1:1 Redundancy Control / IF Interface Cabling Kit (CRS-180 CDM-625) Ch. 4 CEFD Part No. Qty Description Used For PL/11560-1 CRS-180 Switch – Top Assembly...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.2.2 Modem-to-Switch Control Interface Connection When connecting the Control cable between the CRS‐180 and the modems, ensure that screw locks on the ‘D’ type connectors are securely fastened. This will prevent the accidental unmating of the cable, particularly when a standby unit is being removed or replaced. CEFD Part No. Description CA/WR9378-4 Control Cable – Universal, DB-9M, 4’ Figure 4-1. CDM-625 Modem-to-Switch Control Connections...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.2.3 Modem-to-Switch IF Interface Connection EXAMPLE: The Tx IF from ‘ Modem A’ connects to the Tx IF port ‘J5 | Tx A’ on the CRS‐180; similarly, the Tx IF from ‘Modem B’ connects to the Tx IF port ‘J6 | Tx B’ on the CRS‐180. The same logic applies for the Rx IF connections. It is important to note that failure to observe this requirement will result in system malfunction. Item CEFD Part No. Description PL/0946-1 IF Coax Cable, 50Ω XF/BNC-MF-50-75 Transformer, 50-75Ω, 2-200 MHz, BNC, M/F...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.2.4 Modem-to-User Data Interface Connections and Examples The data cables and components identified in each of the examples that follow in this section must be purchased separately, as required. In addition to the control and IF switch‐to‐modem cabling shown previously, a number of data interface configurations are available for the CDM‐625. The block diagram shown in Figure 4‐3 is typical for the examples shown in Sects. 4.2.4.1 through 4.2.4.8. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.2.4.4 Quad E1 Interface Example The G.703 Balanced and Auxiliary G.703 DB‐9F single connectors are used for Quad E1 operation. Note the following: 1. As shown in Figure 4‐7, the CA‐0000071 ‘Y’ Cable provides for two ports of E1 (i.e., Ports 1/2 ‐or‐ Ports 3/4). 2. If the user desires three or four separate ports of E1 (i.e., Port 1 and Port 2 ‐or‐ Port 3 and ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.2.4.9 10/100 Ethernet Interface Examples 4.2.4.9.1 Managed Switch Mode (with/without IP Packet Processor) Figure 4‐12 shows a block diagram and cabling example of a CDM‐625 1:1 modem configuration using the 10/100 Ethernet Interface in Managed Switch (Ethernet Bridge) Mode. Direct connection is made via one to four RJ‐45 ports using user‐provided Ethernet cables and Layer 2 switches, so no cables or kit is required. The cabling example depicts all four Ethernet ports used. CDM-625 Block Diagram: 10/100 Ethernet Interface – Managed Switch Mode ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.2.4.9.2 Router Mode (Optional IP Packet Processor Required) Figure 4‐13 shows a block diagram and cabling example of a CDM‐625 1:1 modem configuration using the 10/100 Ethernet Interface in Router Mode, with the optional IP Packet Processor installed and enabled. Direct connection is made via only one of four RJ‐45 ports using user‐...
® 4‐14 to connect and secure the CDM‐625 Multi‐drop CnC Plus 1:1 Cable CA‐0000276 (2X DB‐ 9M, 1’), required between the Redundant Modem and each Traffic Modem using CnC. The CA-0000276 Multi-Drop CnC PLUS 1:1 Cable bypasses the CRS-180 70/140 MHz IF 1:1 Redundancy Switch. ® If CnC ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM Cabling to the CDM-750 1. For information on the CDM‐750’s 1:1 auto‐enable functionality, see: • Chapter 3. MODEM AND SWITCH CONFIGURATION • CDM‐750 Advanced High‐Speed Trunking Modem Installation and Operation Manual (CEFD P/N MN‐CDM750) 2. For information on the cables and cable assemblies specified in this section, see: • Appendix A. CABLE DRAWINGS 4.3.1 Modem-to-Switch Control and IF Interface Connection Figure 4‐15 shows the control and IF connections for the CDM‐750 to the CRS‐180. All control and IF components are provided for the CDM‐750 in the KT‐0000188 CRS‐180 70/140 MHz IF 1:1 ...
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KT-0000177 70/140 MHz IF 1:1 Redundancy Kit (CRS-180 CDM-750) Item CEFD Part No. Description PL/11560-1 Top Assy, CRS-180 70/140 MHz IF 1:1 Redundancy Switch XF/BNC-MF-50-75 Transformer, 50-75Ω, 2-200 MHz, BNC, M/F (Notes 1,2) CA/WR9378-4 Control Cable, Universal, DB-9M, 4’ PL/0813-4 Cable, Special, 75Ω...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.3.2 Modem-to-User Data Interface Connections and Examples In addition to the control and IF switch‐to‐modem cabling shown in the previous section, a number of data interface configuration kits are available for use with the CDM‐750. 4.3.2.1 RJ-45 Gigabit Ethernet Data Interface Example When ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.3.2.2 Optical Gigabit Ethernet Interface Option Example Figure 4‐17 depicts a CDM‐750 1:1 modem configuration using the FAST‐activated J7 Optical SFP port and optional Optical Gigabit Ethernet Interface module (CEFD P/N IC‐0000058). Depending on the mode – Single Mode or Multi Mode – installation involves use of either one ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.3.2.3 Serial Data Interface Kit and Connection Examples For all CDM‐750 serial data interface configurations, separate cabling kits are needed. For each user interface, one interface kit per 1:1 modem pair is required (see examples for specified quantities). For example, Sect. 4.3.2.3.1 identifies the interface kit used for the G.703 PIIC data interface. ...
4.4.1 CRS-180 CDM-570 1:1 Redundancy Kit KT/11599 Reference to how the items provided in Redundancy Kit KT/11599 are used with all possible CDM‐570 data interface configurations is as follows: KT/11559 1:1 Redundancy Control/IF Interface Cabling Kit (CRS-180 CDM-570) Qty/Kit Ch. 4 CEFD Part No. Description...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.4.2 Modem-to-Switch Control Interface Connection When connecting the Control cable between the CRS‐180 and the modems, ensure that screw locks on the ‘D’ type connectors are securely fastened. This will prevent the accidental unmating of the cable, particularly when a standby unit is being removed or replaced. CEFD Part No. Description CA/WR9378-4 Control Cable – Universal, DB-9M, 4’ Figure 4-20. CDM-570 Modem-to-Switch Control Connections...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.4.3 Modem-to-Switch IF Interface Connection EXAMPLE: The Tx IF from ‘ Modem A’ connects to the Tx IF port ‘J5 | Tx A’ on the CRS‐180; similarly, the Tx IF from ‘Modem B’ connects to the Tx IF port ‘J6| Tx B’ on the CRS‐180. The same logic applies for the Rx IF connections. It is important to note that failure to observe this requirement will result in system malfunction. Item CEFD Part No. Description PL/0946-1 IF Coax Cable, 50Ω...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.4.4 Modem-to-User Data Interface Connections and Examples In addition to the control and IF switch‐to‐modem cabling shown previously, a number of data interface configurations are available for the CDM‐570. The block diagram shown in Figure 4‐22 is typical for the examples shown in Sects. 4.4.4.1 through 4.4.4.3. With the exception of the 10/100 Ethernet Interface configuration shown in Sect. 4.4.4.4, where user‐provided Ethernet cables and hub are used, one cable/component set per 1:1 modem pair is required for each user interface (see examples for specified quantities). Figure 4-22. CDM-570 Block Diagram: User Modem Switch Traffic ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.4.4.4 10/100 Ethernet Interface Example Figure 4‐26 shows a block diagram and cabling example of a CDM‐570 1:1 modem configuration using the 10/100 Ethernet Interface. User‐provided Ethernet cables are connected directly to the ports, so no cables or kit is required. For the CDM‐570 in Managed Switch (Ethernet Bridge) Mode, the user MUST use an external Ethernet hub to insure that traffic will continue after a switchover. If an Ethernet switch is used, there could be a several minute outage while the Ethernet ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM Notes: 4–28...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM Cabling to the CDM-700 1. For information on configuring the CRS‐180 70/140 MHz IF 1:1 Redundancy Switch with the CDM‐700 Satellite Modems for 1:1 operation, see: • Chapter 3. MODEM AND SWITCH CONFIGURATION • CDM‐700 Satellite Modem Installation and Operation Manual (CEFD P/N MN/CDM700.IOM) 2. For information on the cables and cable assemblies specified in this section, see: • Appendix A. CABLE DRAWINGS 4.5.1 Modem-to-Switch Control and IF Interface Connection Figure 4‐27 shows the control and IF connections for the CDM‐700 to the CRS‐180. All control and IF components are provided in the KT/12554 CRS‐180 70/140 MHz IF 1:1 Redundancy Kit ...
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KT/12554 70/140 MHz IF 1:1 Redundancy Kit Item CEFD Part No. Description PL/11560-1 Top Assy, CRS-180 70/140 MHz IF 1:1 Redundancy Switch XF/BNC-MF-50-75 (Notes 1,2) Transformer, 50-75Ω, 2-200 MHz, BNC, M/F PL/0813-4 (Note 2) Cable, Special, IF BNC, 75Ω PL/0946-1 (Note 2) Cable, Special, IF BNC, 50Ω...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.5.2 Modem-to-User Data Interface Kits and Connection Examples In addition to the control and IF switch‐to‐modem cabling shown in the previous section, a number of data interface configurations are available for use with the CDM‐700. The kits featured in this section can be supplied with the CRS‐180 for use with the CDM‐700. Figure 4-28. CDM-700 Block Diagram: User...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.5.2.1 Dual G.703 E3/T3/STS-1 75Ω Data Interface (CDI-10) Kit KT/12542 and HSSI Data Interface (CDI-60) Kit KT/12578 Figure 4‐29 shows an example of a CDM‐700 1:1 modem configuration with the CDI‐10 Dual ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.5.2.2 155MB Copper Data Interface (CDI-50) Kit KT/12579 Figure 4‐30 shows an example of a CDM‐700 1:1 modem configuration with a CDI‐50 Data Interface installed in Slot 1 for use with 155MB Copper data, and Slot 2 empty. The figure ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.5.2.3 OC-3 Data Interface (CDI-50) Kits KT/12580 (Single-Mode) or KT/12581 (Multi-Mode) Figure 4‐31 depicts a CDM‐700 1:1 modem configuration with installation of one CDI‐50 Data Interface installed in Slot 1 for use with OC‐3 data, and Slot 2 empty. The figure depicts installation of one KT/12580 OC‐3 Single‐Mode Interface Kit. Multi‐Mode configurations use the KT/12581 ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.5.2.4 Gigabit Ethernet Data Interface (CDI-70) Example See CEFD White Paper “Bridged Ethernet Interface Redundancy” available for download from Comtech EF Data’s Web site (www.comtechefdata.com). Figure 4‐32 shows an example of a CDM‐700 1:1 modem configuration with a CDI‐70 Gigabit Ethernet Data Interface installed in Slot 1, and Slot 2 empty. User‐provided Ethernet cables are ...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM Notes: 4–36...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM Cabling to the CDM-710 1. For information on configuring the CRS‐180 70/140 MHz 1:1 Redundancy Switch with the CDM‐710 Broadcast Satellite Modems for 1:1 operation, see: • Chapter 3. MODEM AND SWITCH CONFIGURATION • CDM‐710 Broadcast Satellite Modem Installation and Operation Manual (CEFD P/N MN/CDM710.IOM) 2. For information on the cables and cable assemblies specified in this section, see: • Appendix A. CABLE DRAWINGS 4.6.1 Modem-to-Switch Control and IF Interface Connection Figure 4‐33 shows the control and IF connections for the CDM‐710 to the CRS‐180. All IF and ...
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KT/12554 70/140 MHz IF 1:1 Redundancy Kit Item CEFD Part No. Description PL/11560-1 Top Assy, CRS-180 70/140 MHz IF 1:1 Redundancy Switch XF/BNC-MF-50-75 (Notes 1,2) Transformer, 50-75Ω, 2-200 MHz, BNC, M/F PL/0813-4 (Note 2) Cable, Special, IF BNC, 75Ω PL/0946-1 (Note 2) Cable, Special, IF BNC, 50Ω...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.6.2 Modem-to-User Data Interface Kit and Connection Examples In addition to the control and IF switch‐to‐modem cabling shown in the previous section, a number of data interface configuration kits are available for use with the CDM‐710. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.6.2.1 ASI 75Ω Data Interface (CDI-40) Kit KT/12579 Figure 4‐35 shows an example of a CDM‐710 1:1 modem configuration with the CDI‐40 ASI Data Interface installed in Slot 1, and Slot 2 empty. The figure depicts installation of one KT/12579 ASI Interface Kit. Be sure to connect to the lower BNC connectors labeled “1:1” on the CDI-40 ASI Data Interface. The Rx port on each interface has been tuned to be 3 dB higher amplitude to compensate for the presence of the RF/SA32KC-IN/OUT 2-way combiner.
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.6.2.2 HSSI Data Interface (CDI-60) Interface Kit KT/12578 Figure 4‐36 shows an example of a CDM‐710 1:1 modem configuration with the CDI‐60 HSSI Data Interface installed in Slot 1, and Slot 2 empty. The figure depicts installation of one ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.6.2.3 Gigabit Ethernet Data Interface (CDI-70) Example See CEFD White Paper “Bridged Ethernet Interface Redundancy” available for download from Comtech EF Data’s Web site (www.comtechefdata.com). Figure 4‐37 shows a block diagram and cabling example of a CDM‐710 1:1 modem configuration with a CDI‐70 Gigabit Ethernet Data Interface in Slot 2, and Slot 1 empty. User‐provided Ethernet cables are connected directly to the interface, so no kit is required. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM Cabling to the CDM-710G 1. For information on configuring the CRS‐180 70/140 MHz 1:1 Redundancy Switch with the CDM‐710 Broadcast Satellite Modems for 1:1 operation, see: • Chapter 3. MODEM AND SWITCH CONFIGURATION • CDM‐710G High‐Speed Satellite Modem Installation and Operation Manual (CEFD P/N MN‐CDM710G.IOM) 2. For information on the cables and cable assemblies specified in this section, see: Appendix A. CABLE DRAWINGS 4.7.1 Modem-to-Switch Control and IF Interface Connection Figure 4‐38 shows the control and IF connections for the CDM‐710G to the CRS‐180. As with the CDM‐710, all control and IF components are provided for the CDM‐710G in the KT/12554 ...
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KT/12554 70/140 MHz IF 1:1 Redundancy Kit Item CEFD Part No. Description PL/11560-1 Top Assy, CRS-180 70/140 MHz IF 1:1 Redundancy Switch XF/BNC-MF-50-75 (Notes 1,2) Transformer, 50-75Ω, 2-200 MHz, BNC, M/F PL/0813-4 (Note 2) Cable, Special, IF BNC, 75Ω PL/0946-1 (Note 2) Cable, Special, IF BNC, 50Ω...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.7.2 Modem-to-User Data Interface Kit and Connection Examples In addition to the basic switch‐to‐modem cabling shown in the previous section, a number of data interface configuration kits are available for use with the CDM‐710G. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.7.2.1 Single G.703 E3/T3/STS-1 75Ω Data Interface (CDI-10-1) Kit KT/12583 Figure 4‐40 shows an example of a CDM‐710G 1:1 modem configuration with the CDI‐10‐1 Single G.703 Data Interface installed in Slot 1, and Slot 2 empty. The figure depicts installation of one KT/12583 Single G.703 Interface Kit. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.7.2.2 HSSI Data Interface (CDI-60) Kit KT/12586 Figure 4‐41 shows an example of a CDM‐710G 1:1 modem configuration with the CDI‐60 HSSI Data Interface installed in Slot 1, and Slot 2 empty. The figure depicts installation of one ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Cables and Connections MN/CRS180.IOM 4.7.2.3 Gigabit Ethernet Interface (CDI-70) Example See CEFD White Paper “Bridged Ethernet Interface Redundancy” available for download from Comtech EF Data’s Web site (www.comtechefdata.com). Figure 4‐42 shows a block diagram and cabling example of a CDM‐710G 1:1 modem configuration with the CDI‐70 Gigabit Ethernet Data Interface installed in Slot 2, and Slot 1 ...
Chapter 5. CONNECTOR PINOUTS Overview The CRS-180 70/140 MHz IF 1:1 Redundancy Switch connectors, shown in Figure 5-1, provide all necessary external connections between the module and the specified Comtech EF Data modem. J6 TX B J5 TX A J3 Control A...
The Modem ‘A’ Control connector is a 9-pin Type ‘D’ female interface located on the modem side of the CRS-180. Refer to Table 5-2 for pin assignments. Pins 2, 3, and 4 carry signals looped through the switch module from Modem B to Modem A, while pins 6, 7, and 8 loop the same signals from Modem A through to Modem B.
The Modem ‘B’ Control connector is a 9-pin Type ‘D’ female interface located on the modem side of the CRS-180. Refer to Table 5-3 for pin assignments. Pins 2, 3, and 4 carry signals looped through the switch module from Modem A to Modem B, while pins 6, 7, and 8 loop the same signals from Modem B through to Modem A.
Chapter 4. CABLES AND additionally, the tables cross‐reference each cable to the applicable modem‐specific cabling figures provided in CONNECTIONS . Control Interface Cables App. A REF Ch. 4 CEFD CABLE P/N DESCRIPTION USED WITH CRS-180 USED FOR (TYPE) CDM-625 CA/WR9378-4 Universal Cable, Control DB-9M DB-9M, 4’ CDM-750 1:1 Control 4-15 CDM-570 4-20...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM A.2.3 Optional ‘Y’ Splitter Adapter Control Cable, (2X) DB-9M DB-15F The optional CA/WR13011‐4 ‘Y’ Splitter Adapter Control Cable (sold separately) is used in replacement of the CA/WA12135‐1 cable. This cable permits User access to the Summary Fault Relay. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM A.2.4 Optional Control Cable, Non-muting, DB-9M DB-15F The optional CA‐0000187 Control Cable (sold separately) is used in replacement of the CA/WA12135‐1 cable. This cable keeps the offline modem’s Tx IF‐enabled. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM IF / Data Interface Cables App. A REF Ch. 4 CEFD CABLE P/N DESCRIPTION USED FOR (TYPE) USED WITH CRS-180 CDM-625 CDM-570 4-21 PL/0946-1 Cable – RoHS, Coax Type ‘BNC’ 75Ω, 4’...
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CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM App. A REF Ch. 4 CEFD CABLE P/N DESCRIPTION USED FOR (TYPE) USED WITH CRS-180 CDM-750 4-15 CDM-700 4-27 A-14 PL/0813-4 75Ω BNC 75Ω BNC, 4’ Modem Switch IF Interface...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM A.3.5 Modem to User, Quad E1 ‘Y’ Splitter Adapter Cable, (2X) DB-15F DB-9M This optional adapter cable may be purchased from Comtech EF Data to adapt the Balanced G.703 or Auxiliary G.703 DB‐9F modem connections to a DB‐15F connector pair. The DB‐9M end of this cable plugs into the ‘To User’ connector side (DB‐9F) of the CA‐0000071 ‘Y’ Splitter cable shown in Figure A‐8. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM A.3.6 Modem to User, Quad E1 ‘Y’ Splitter Adapter Cable, (2X) RJ-48F DB-9M This optional adapter cable may be purchased from Comtech EF Data to adapt the Balanced G.703 or Auxiliary G.703 DB‐9F modem connections to a RJ‐48F connector pair. The DB‐9M end of this cable plugs into the ‘To User’ connector side (DB‐9F) of the CA‐0000071 ‘Y’ Splitter cable shown in Figure A‐8. ...
CRS-180 70/140 MHz IF 1:1 Redundancy Switch Revision 8 Appendix A MN/CRS180.IOM A.3.12 Modem to User G.703 Balanced User Data ‘Y’ Splitter Cable, (2X) DB-15M DB-15M Figure A-16. G.703 Balanced User Data ‘Y’ Splitter Cable (CEFD P/N CA/WR10522-1)
METRIC CONVERSIONS Units of Length Unit Millimeter Centimeter Inch Foot Yard Meter Kilometer Mile 1 millimeter 0.0394 0.0033 0.0011 0.001 1 x 10 6.214 x 10 1 centimeter 0.3937 0.0328 0.0109 0.01 1 x 10 6.214 x 10 1 inch 25.4 2.54 0.0833...
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2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...