Cisco ESR10008 Hardware Installation Guide - Page 31
Site Cabling Guidelines, DC Powered Systems
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Chapter 2 Preparing for Installation Site Planning DC Powered Systems The DC PEMs for the Cisco 10008 router chassis are not shipped with wiring to connect to the DC source. Both systems have terminal blocks to attach building's input, return, and earthing (ground) wiring. The DC power source must comply with the Safety Extra Low Voltage (SELV) requirements in IEC 60950 based safety standards. The electrical ratings of the DC PEMs for both the Cisco 10008 chassis are: • DC input voltage: - Nominal range -48 VDC to -60 VDC - Absolute maximum range -40.5 VDC to -75 VDC • DC input current: 20A @ -48 VDC • Power consumption: 1300W maximum Warning You must incorporate a readily accessible 2-poled disconnect device in the fixed wiring. Statement 1022 See Appendix A, "Technical Specifications," for system power specifications, including input voltage and operating frequency ranges. Site Cabling Guidelines This section contains guidelines for wiring and cabling at your site. When preparing your site for network connections to the Cisco 10008 series router, consider the type of cable required for each line card, and the cable's limitations. Consider the distance limitations for signaling, EMI, and connector compatibility. Possible cable types are fiber, thick or thin coaxial, foil twisted-pair, or unshielded twisted-pair cabling. Also consider any additional interface equipment you need, such as transceivers, hubs, switches, modems, channel service units (CSUs), or data service units (DSUs). Before you install the Cisco 10008 series router, have all additional external equipment and cables on hand. For ordering information, contact a customer service representative. The extent of your network and the distances between network interface connections depend in part on the following factors: • Signal type • Signal speed • Transmission medium The distance and rate limits referenced in the following sections are the IEEE-recommended maximum speeds and distances for signaling purposes. Use this information as a guideline in planning your network connections prior to installing the Cisco 10008 router. OL-0659-13 Cisco 10008 Router Hardware Installation Guide 2-5
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