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Before you install the Cisco 10000 ESR, consider:
This chapter guides you through the process of preparing for your router installation.
Do not unpack the system until you are ready to install it. Keep the chassis in the shipping container to prevent accidental damage until you determined an installation site. Use the appropriate unpacking documentation included with the system.
When you install the Cisco 10000 ESR, observe all of the following caution and warning statements. For warning translations, refer to "Translated Safety Warnings."
The following guidelines will help ensure your safety and protect the equipment. However, these guidelines may not cover all potentially hazardous situations you may encounter during system installation, so be alert.
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Warning Only trained and qualified personnel should be allowed to install or replace this equipment. |
Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent failures. The performance routing engine (PRE), and all line cards consist of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the cards from ESD, use an antistatic strap each time you handle the modules. Handle the carriers by the edges only; never touch the cards or connector pins.
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Caution Always tighten the captive installation screws on all system components when you are installing them. These screws prevent accidental removal of the module, provide proper grounding for the system, and help to ensure that the bus connectors are properly seated in the backplane. |
Following are guidelines for preventing ESD damage:
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Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms. |
The fully configured system weighs approximately 130 pounds. The chassis is not intended to be moved frequently. Before you install the system, ensure that your site is properly prepared so you can avoid having to move the chassis later to accommodate power sources and network connections.
Two or more people are required to lift the chassis. Each time you lift the chassis or any heavy object, follow these guidelines:
To safely lift the chassis, perform the following steps:
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Warning Two people are required to lift the chassis. To prevent injury, keep your back straight and lift with your legs, not your back |
Step 2 With the other hand, grasp the top rear of the chassis under the air exhaust and carefully lift the chassis as shown in Figure 2-2.
All system components are hot-swappable. They are designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system.
Follow these basic guidelines when you are working with any electrical equipment:
In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source but is still connected to telephone wiring or other network cabling.
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Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
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Warning Before you work on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and the heat can cause serious burns or weld the metal object to the terminals. |
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Warning Read the installation instructions before you connect the system to its power source. |
The environmental monitoring functionality in the Cisco 10000 protects the system and components from potential damage from excessive voltage and temperature conditions. To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. After installation, make sure the site maintains an ambient temperature of 41° F through 104° F (5° C through 40° C), and keep the area around the chassis as free from dust as is practical.
Planning a proper location for the Cisco 10000 and the layout of your equipment rack or wiring closet is essential for successful system operation. Equipment placed too close together or inadequately ventilated can cause system excessive temperature conditions. In addition, chassis panels made inaccessible by poor equipment placement can make system maintenance difficult.
When you plan the location and layout of your equipment rack or wiring closet, you need to consider how air flows through your router. The Cisco 10000 ESR draws cooling air in through the intake vent on the front of the chassis and moves the air across the internal components and out the exhaust vents on the top rear of the chassis (Figure 2-3).
Temperature sensors on the PRE monitor the internal air temperature and send warning messages and an alarm condition when the internal air temperature approaches a specified threshold.
The front and top of the chassis must remain unobstructed to ensure adequate airflow and prevent overheating inside the chassis.
Allow teh following clearances for normal system maintenance:
At the top of the chassis---At least 3 inches (7.6 cm)
In the front of the chassis---3 to 4 ft ( 91.44 cm to 121.92 cm)
To avoid problems during installation and ongoing operation, follow these general precautions when you plan the equipment locations and connections:
Table 2-1 lists the operating and nonoperating environmental site requirements. The ranges listed are those within which the Cisco 10000 continues to operate; however, a measurement that is approaching the minimum or maximum of a range indicates a potential problem. You can maintain normal operation by anticipating and correcting environmental anomalies before they approach a maximum operating range.
| Specification | Minimum | Maximum |
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Temperature, ambient operating | 41° F (5° C) | 104° F (40° C) |
Temperature, ambient nonoperating and storage | -40° F (-40° C) | 158° F (70° C) |
Humidity, ambient (noncondensing) operating | 5% | 85% |
Humidity, ambient (noncondensing) nonoperating and storage | 5% | 95% |
Altitude, operating and nonoperating | -197 ft (-60 m) | 13,123 ft (4000 m) |
Vibration, operating | --- | 5 to 200 Hz, 0.5 g (1 octet/min.) |
Vibration, nonoperating | --- | 5 to 200 Hz, 1 g (1 octave/min.) |
Follow these precautions and recommendations when planning power connections to the Cisco 10000:
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Caution This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. |
The DC-input power supply allows the Cisco 10000 to operate at -48 VDC nominal in North America and -60 VDC in Europe.
See "Technical Specifications," for system power specifications, including input voltage and operating frequency ranges.
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Warning You must incorporate a readily accessible 2-poled disconnect device in the fixed wiring. |
Following are guidelines for setting up the plant wiring and cabling at your site. When planning the location of the new system, consider the distance limitations for signaling, EMI, and connector compatibility, as described in the following sections.
When wires are run for any significant distance in an electromagnetic field, interference can occur between the field and the signals on the wires. This fact has two implications for the construction of plant wiring:
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Note To predict and remedy strong EMI, you may also need to consult experts in radio frequency interference (RFI). |
If you use twisted-pair cable in your plant wiring with a good distribution of grounding conductors, the plant wiring is unlikely to emit radio interference. If you exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal when applicable.
If wires exceed recommended distances, or if wires pass between buildings, give special consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse caused by lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices. If you have had problems of this sort in the past, you may want to consult experts in electrical surge suppression and shielding.
When preparing your site for network connections to the Cisco 10000, you must consider a number of factors related to each type of interface:
Beforeyou instal the Cisco 10000 ESR, 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:
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 10000.
Table 2-2 shows the maximum transmission distances between stations for Ethernet and Fast Ethernet connections.
| Transceiver Speed | Cable Type | Transmission Mode | Maximum Distance between Stations |
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10 Mbps | Category 3 | Full and half duplex | 328 ft (100 m) |
100 Mbps | Category 5 | Full and half duplex | 328 ft (100 m) |
The specifications for single-mode, fiber-optic transmissions are outlined in Table 2-3.
| Characteristic | Permissible Value |
|---|---|
Transmitter output power | -15 to -8 dBm |
Receiver sensitivity | -28 to -8 dBm |
Wavelength | 1261 to 1360 nm |
Maximum span | 9 miles (14.5 km) |
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Note Do not exceed specified distance limits. |
You can mount the Cisco 10000 on an equipment shelf or tabletop. However, we recommend rack-mounting the Cisco 10000. The rack-mounting hardware included with chassis is suitable for most 19-inch equipment racks and telco-type racks.
When planning your rack installation, consider the following guidelines:
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Caution To prevent overheating, never install the chassis in an enclosed rack or room that is not properly ventilated or air conditioned. |
See the "General Rack Installation Guidelines" section for additional information about rack-mounting your system.
The tools and equipment listed below are recommended as the minimum necessary to install the Cisco 10000 ESR. You may need additional tools and equipment to install associated equipment and cables. You may also require test equipment to check electronic and optical signal levels, power levels, and communications links.
Refer to the section Connecting the Chassis to Ground, in Chapter 3, for specific tool and equipment requirements to connect the chassis to ground.
Power cables, manuals, and other additional items are packaged in separate boxes. After you have unpacked the system to verify that you have received all of the required components. Using the packing list as a guide, take the following steps to check the contents of the Cisco 10000 shipping container:
Step 2 Check that all line cards you ordered are installed in the chassis (including PCMCIA flash cards installed in the PRE). Ensure that the configuration matches the packing list.
Posted: Fri Jul 28 13:05:30 PDT 2000
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