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This chapter describes the tasks you must perform before you begin to install your Cisco DistributedDirector 2500 Series, and includes the following sections:
Follow these guidelines to ensure general safety:
 | Warning Ultimate disposal of this product should be handled according to all national laws and regulations. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
Follow these guidelines when working on equipment powered by electricity:
| Warning Before working 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 can cause serious burns or can weld the metal object to the terminals. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
| Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
| Warning Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is OFF and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
| Warning When installing the unit, the ground connection must always be made first and disconnected last. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
| Warning Read the installation instructions before you connect the system to its power source. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs when electronic components are improperly handled and can result in complete or intermittent failures.
Always follow ESD-prevention procedures when removing and replacing components. Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis frame to safely ground unwanted ESD voltages. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
 | Caution For safety, periodically check the resistance value of the antistatic strap, which should be from 1 to 10 megohms (Mohms). |
This section describes the requirements your site must meet for safe installation and operation of your system. Ensure that your site is properly prepared before beginning installation.
The Director can be placed on a desktop or mounted in a rack or on a wall. The location of the Director and the layout of your equipment rack or wiring room are extremely important for proper system operation. Equipment placed too close together, inadequate ventilation, and inaccessible panels can cause system malfunctions and shutdowns, and can make Director maintenance difficult.
When planning your site layout and equipment locations, keep in mind the precautions described in the next section, "Preventive Site Configuration," to help avoid equipment failures and reduce the possibility of environmentally caused shutdowns. If you are experiencing shutdowns or unusually high errors with your existing equipment, these precautions may help you isolate the cause of failures and prevent future problems.
The following precautions will help you plan an acceptable operating environment for your Director and will help you avoid environmentally caused equipment failures:
The following tips will help you plan an acceptable equipment rack configuration:
Check the power at your site to ensure that you are receiving "clean" power (free of spikes and noise). Install a power conditioner if necessary.
| Warning The device is designed to work with TN power systems. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
The Director's AC power supply includes the following features:
| Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
| Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
The Installation Checklist lists the procedures for initial hardware installation of a new Director. Make a copy of this checklist and mark the entries as you complete each procedure. Include a copy of the checklist for each system in your Site Log. (See the next section, "Creating a Site Log.")
Installation checklist for site______________________________________________ | ||
|---|---|---|
Director name__________________________________________________________
| ||
| Task | Verified by | Date |
| Installation checklist copied | ||
| Background information placed in Site Log | ||
| Site power voltages verified | ||
| Required tools available | ||
| Additional equipment available | ||
| Director received | ||
| Optional Documentation CD-ROM received | ||
| Optional printed documentation received | ||
| Cisco Information Packet received | ||
| Chassis components verified | ||
| Initial electrical connections established | ||
| ASCII terminal or PC attached to console port | ||
| Signal distance limits verified | ||
| Startup sequence steps completed | ||
| Initial system operation verified | ||
| Software image verified | ||
The Site Log provides a record of all actions relevant to the Director. Keep it near the chassis where anyone who installs or maintains the Director has access to it. Use the Installation Checklist (see the previous section, "Installation Checklist") to verify steps in the installation and maintenance of your Director. Site Log entries might include the following:
When setting up your Director, consider distance limitations and potential electromagnetic interference (EMI) as defined by the EIA.
| Warning The Ethernet, console, and auxiliary ports contain safety extra-low voltage (SELV) circuits. (To see translated versions of this warning, refer to the appendix "Translated Safety Warnings.") |
The IEEE has established Ethernet as standard 802.3. The most common Ethernet implementations are as follows:
The Ethernet interface on your Director operates at speeds up to 10 Mbps.
Use the following equipment (not included) to connect to the Ethernet AUI port (DB-15):
The connection to the AUI port can be attached using either a slide-latch or jackscrew connector.
The cables and transceivers required to connect the Director to an Ethernet network are not included. To order cables and transceivers, refer to the Cisco Product Catalog or contact Cisco customer service.
The IEEE has established Token Ring as standard 802.5. The distance limitations for the IEEE 802.5 specification indicate a maximum segment distance of 328 feet (100 meters) for UTP cabling. The distance limitation is 1,640 feet (500 meters) for shielded twisted-pair (STP) cabling.
Token Ring can operate at two different ring speeds: 4 and 16 Mbps. All devices on the ring must agree on the operating speed.
Use a Token Ring lobe cable to connect the Director to a media attachment unit (MAU). The lobe cable and MAU are not included with the Director. Refer to the section "Token Ring Port Pinouts" in the appendix "Cable Specifications" for the Token Ring port pinouts.
All Director models include an asynchronous serial console and auxiliary port. The console and auxiliary ports provide access to the Director either locally (with a console terminal) or remotely (with a modem). This section discusses important cabling information to consider before connecting a console terminal (an ASCII terminal or PC running terminal emulation software) to the console port or modem to the auxiliary port.
The main difference between the console and auxiliary ports is that the auxiliary port supports hardware flow control and the console port does not. Flow control paces the transmission of data between a sending device and a receiving device. Flow control ensures that the receiving device can absorb the data sent to it before the sending device sends more. When the buffers on the receiving device are full, a message is sent to the sending device to suspend transmission until the data in the buffers has been processed. Because the auxiliary port supports flow control, it is ideally suited for use with the high-speed transmissions of a modem. Console terminals transmit at slower speeds than modems; therefore, the console port is ideally suited for use with console terminals.
The Director includes an EIA/TIA-232 asynchronous serial console port (RJ-45). Depending on the cable and the adapter used, this port will appear as a DTE or DCE device at the end of the cable. Your Director comes with cables and adapters to connect a console terminal (an ASCII terminal or PC running terminal emulation software) to the console port. To connect an ASCII terminal to the console port, use the RJ-45 roll-over cable with the female RJ-45-to-DB-25 adapter (labeled Terminal). To connect a PC running terminal emulation software to the console port, use the RJ-45 roll-over cable with the female RJ-45-to-DB-9 adapter (labeled Terminal). The default parameters for the console port are 9600 baud, 8 data bits, no parity, and 2 stop bits. The console port does not support hardware flow control. For detailed information about installing a console terminal, see the section "Connecting the Console Terminal and Modem" in the chapter "Installing the Cisco DistributedDirector 2500 Series." See the appendix "Cable Specifications" for cable and port pinouts.
The Director includes an EIA/TIA-232 asynchronous serial auxiliary port (RJ-45) that supports flow control. Depending on the cable and the adapter used, this port will appear as a DTE or DCE device at the end of the cable. Your Director includes a cable and an adapter to connect a modem to the auxiliary port. To connect a modem to the auxiliary port, use the RJ-45 roll-over cable with the male RJ-45-to-DB-25 adapter (labeled Modem). For detailed information about connecting devices to the auxiliary port, see the section "Connecting the Console Terminal and Modem" in the chapter "Installing the Cisco DistributedDirector 2500 Series." See the appendix "Cable Specifications" for cable and port pinouts.
Do not unpack the Director until you are ready to install it. If the final installation site will not be ready for some time, keep the chassis in its shipping container to prevent accidental damage. When you have determined where you want the Director installed, proceed with unpacking it.
The Director and any optional equipment you ordered might be shipped in more than one container. When you unpack each shipping container, check the packing list to ensure that you received all of the following items:
Inspect all items for shipping damage. If anything appears to be damaged, or if you encounter problems when installing or configuring your system, contact Cisco customer service.
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