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This chapter describes the equipment and site requirements for installing the Cisco AccessPath-TS3 Model 530 Integrated Access System. The chapter contains the following sections:
Before installing your AccessPath-TS3 system, you should consider the power and cabling requirements that must be in place at your installation site, the equipment you will need to install the system, and the environmental conditions your installation site must meet. This chapter guides you through the process of preparing for your AccessPath-TS3 system installation. For further information on AccessPath-TS3 system environmental specifications, refer to the section "Site Environment" later in this chapter<Xref_Color>.
The following guidelines will help to ensure your safety and protect the equipment. This list does not cover all potentially hazardous situations, so be alert.
A fully configured AccessPath-TS3 system weighs approximately 950 lb (430.9 kg). The chassis is not intended to be moved frequently. Before you install the system, make sure that your site is properly prepared so you can avoid having to move the chassis later to accommodate power sources and network connections.
Whenever you move the AccessPath-TS3 system, follow these guidelines:
Figure 2-1 shows an example of these guidelines.
The port adapters and power supplies in the Router Shelves and the Switch Shelf can be removed and replaced while the AccessPath-TS3 system is operating. Such actions do not present an electrical hazard or cause damage. However, you must power down the Switch Shelf before removing or replacing its I/O controller and network processing engine. Additionally, you must power down Access Server Shelves when replacing their port adapters or power supplies.
Follow these basic guidelines when 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 still connected to telephone wiring or other network cabling.:
Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent system failures. The network processing engine, the I/O controller, and each port adapter consists of a printed circuit board that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding, connectors, and a handle are integral components of the carrier. Although the carrier helps protect the boards, use an antistatic strap whenever you are handling the network processing engine, I/O controller, and port adapters. Touch the carriers on the handles and the carrier edges only; never touch the boards or connector pins.
Following are guidelines for preventing ESD damage:
The environmental monitoring functionality in the AccessPath-TS3 system protects it and its components from potential damage from overvoltage and overtemperature 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 has an ambient temperature of 32 to 104\xb0 F (0 to 40\xb0 C), and keep the area around the chassis as free from dust as is practical.
The following sections address the site environment requirements for the AccessPath-TS3 system.
For shelf specifications, including input voltage and operating frequency ranges, refer to the following tables in the chapter "Cisco AccessPath-TS3 Model 530 Integrated Access System Product Overview."
The AC-input power supply operates on input voltage and frequency within the ranges of 100 to 240 VAC and 50/60 Hz.
Note We recommend attaching the dual power supplies on the Switch Shelf and the Router Shelves to independent power sources for full redundancy. We also recommend an uninterruptible power source to protect against power failures at your site. Each AC-input power supply operating at 120 VAC requires a minimum of 5A service. We recommend powering each of the power strips of the AccessPath-TS3 system from a 20A receptacle at the power source.
The DC-input power supply allows the AccessPath-TS3 shelves to operate at -48 VDC nominal in North America and -60 VDC in the European Community.
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, electromagnetic interference (EMI), and connector compatibility that are 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:
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.
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.
The size of your networks and the distances between connections depend in part on the type of signal, the signal speed, and the transmission media (the type of cabling used to transmit the signals). For example, standard coaxial cable has a greater channel capacity than twisted-pair cabling.
The distance and rate limits in the following descriptions are the IEEE recommended maximum speeds and distances for signaling; however, you can usually get good results at speeds and distances far greater than these.
For example, the recommended maximum rate for V.35 is 2 Mbps, but it is commonly used at 4 Mbps without any problems. If you understand the electrical problems that might arise and you compensate for them, you should get good results with rates and distances greater than those shown here. Proceed, however, at your own risk.
When preparing your site for network connections to the AccessPath-TS3 system, consider these factors for each type of interface:
Before installing the AccessPath-TS3 system, have all additional external equipment and cables available. The information in this section is contained in the documentation that is shipped with each port adapter.
For ordering information, contact a customer service representative. See the section "Related and Referenced Documents" in the chapter "About This Guide" for more information.
AccessPath-TS3 system field replaceable units (FRUs) are accessible from the rear of the system.
Do not substitute a third-party vendor's rack-mounting system for the one provided with the AccessPath-TS3 system.
The AccessPath-TS3 system is shipped with an earthquake safety plate which prevents the cabinet from moving during an earthquake. To install the earthquake safety plate and AccessPath-TS3 system cabinet, refer to the section "Second, Install the Earthquake Safety Plate and AccessPath-TS3 Cabinet" in Chapter 3.
When planning your rack installation, consider the following guidelines:
In addition to the preceding guidelines, review the precautions for avoiding overtemperature conditions in the following section "Site Environment."
<Xref_Color>This section lists the operating and nonoperating environmental site requirements. The ranges in Table 2-1 are those within which the AccessPath-TS3 system can 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 any environmental anomaly before it approaches the limit of a range.
Planning a proper location for the AccessPath-TS3 system and the layout of your equipment rack or wiring closet is essential for successful operation. Equipment items that are placed too close together or that are inadequately ventilated can cause system overtemperature conditions. In addition, chassis panels made inaccessible by poor equipment placement can make system maintenance difficult. The following precautions can help you avoid problems during installation and operation.
Follow these precautions when planning your equipment locations and connections:
Follow these precautions and recommendations when planning power connections to the AccessPath-TS3 system:
Your AccessPath-TS3 system has been fully configured at the factory; no assembly is required. However, you will need the following tools and equipment to install the AccessPath-TS3 system:
In addition, you might need the following external equipment:
After you install the chassis and verify that all the hardware is operating properly, ensure that the AccessPath-TS3 system and the individual interfaces are correctly configured before you connect to external networks. Cisco may have preconfigured your AccessPath-TS3 system or you may have elected to do it. In either case, refer to the Cisco AccessPath-TS3 Integrated Access System Software Configuration Guide or the Cisco AccessPath Manager Configuration Guide for information on checking configurations or entering them.
You may find it helpful to use the AccessPath-TS3 system installation checklist in Table 2-2. Make a copy of this checklist and indicate when each procedure or verification is completed. When the checklist is completed, place it in your site log (described at the end of this chapter), along with the other records for your AccessPath-TS3 system.
When you receive your AccessPath-TS3 system, use the following procedure to check the contents of the shipping container. Use the system installation checklist in Table 2-2 and the component list in Table 2-3 to ensure you received all the components you ordered.
Note Do not discard the shipping container. You will need it if you move or ship the AccessPath-TS3 system in the future.
Step 2 Check the contents of the accessories boxes against the installation checklist and the packing slip to verify that you received all listed equipment, which should include the following:
Note The entire printed documentation set for each of the AccessPath-TS3 system shelves does not ship with each system. However, the Documentation CD-ROM and Cisco's web site include all the pertinent documentation. To receive printed copies of this documentation, you must specifically order it. To order documents, contact a customer service representative.
Step 3 Verify that the port adapters installed in your AccessPath-TS3 system match the port adapter types on the packing list.
Step 4 Proceed to the section "Site Log" later in this chapter, and then to the chapter "Installing and Configuring the Cisco AccessPath-TS3 Model 530 Integrated Access System," to begin installation.
To help ensure a successful installation, verify the preinstallation requirements discussed earlier in this guide have been met. Complete and return the Cisco AccessPath-TS3 System Component List (Table 2-3) and return it to Cisco Systems. All site requirements must be met prior to shipment.
Have the installation site contact person fill out the AccessPath-TS3 site preparation checklist. An example of the list is shown in Figure 2-3. Fax the completed form to your contact at Cisco Systems. Please retain a copy of this checklist for your records.
1. The site modem telephone must be within 10 ft (3 m) of the AccessPath-TS3 system.
2. The AccessPath-TS3 system will require large door access and/or a freight elevator.
3. These circuits include T1 or E1 lines and backhaul WAN or LAN connections.
4. Software configuration development is your responsibility. If you need assistance, consult your sales representative.
5. Contact your sales representative for the e-mail address or fax number to submit your information.
6. The enable and virtual terminal password.
A site log provides a historical record of all actions relevant to the AccessPath-TS3 system operation and maintenance. Keep your site log near the chassis where anyone who performs tasks has access to it. Site log entries might include the following:
Table 2-4 shows a sample site log page. Make copies of the sample or design your own site log to meet the needs of your site, equipment, and procedures.
Posted: Tue Jan 21 07:56:04 PST 2003
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