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Thank you for purchasing the Cisco Systems Installation Service. To help ensure that the system installation goes as planned, use this Site Preparation Guide to help prepare your site before the system arrives.
The On-Site Services (OSS) team will install any Cisco Systems product. Installations are performed between the hours of 8:00 a.m. and 5:00 p.m. (local time) Monday through Friday, excluding Cisco-observed holidays. Acknowledgment of your Installation Service Order is indicated by your receipt of the Cisco Site Preparation Guide.
The OSS team will not set up the software configuration for your system.
The installation service is limited to hardware installation and setup. You are responsible for setting up the software configuration.
The following software configuration options are available:
Option 1. You either e-mail or fax the entire configuration to OSS. (The configuration is downloaded to your system through the console port via a modem line.)
Option 2. You store the entire configuration on a TFTP server. (The configuration is downloaded to your system using Cisco's AutoInstall feature.)
Option 3. OSS configures one port on the router so you can Telnet to the router and download the entire configuration. (Only IGRP and RIP routing are supported for this option.)
Be sure to indicate on the Site Preparation Checklist which software configuration loading option you want to use.
The following is an example of how a software configuration might appear on a terminal.
! Define line password line 0 4 password secret login ! ! Define privileged-level password enable-password Secret Word ! ! Define a system hostname hostname TIP ! Define host filenames boot host host1-confg 131.108.1.111 boot host host2-confg 131.108.1.111 ! Define system filenames boot system sys1-system 131.108.13.111 boot system sys2-system 131.108.1.111 ! ! Enable SNMP snmp-server community snmp-server trap-authentication snmp-server host 131.108.1.27 public snmp-server host 131.108.1.111 public snmp-server host 131.108.2.63 public ! ! Define TACACS server hosts tacacs-server host 131.108.1.27 tacacs-server host 131.108.13.33 tacacs-server host 131.108.1.33 ! ! Define a message-of-the-day banner banner motd ^C The Information Place welcomes you Please call 1-800-555-2222 for a login account, or enter your password at the prompt. ^C
You must schedule installations five working days in advance by faxing the completed Site Preparation Checklist form (located at the end of this publication) to Cisco Systems.
Cisco Systems reserves the right to reschedule the installation if any information on the Site Preparation Checklist is not forwarded to Cisco Systems within five working days before the scheduled installation date.
You can reschedule or cancel an installation up to three working days before the scheduled installation date without any penalty; however, installations canceled within 72 hours of the scheduled installation date are subject to a cancellation charge of $100, payable with a credit card to Cisco Systems prior to rescheduling the installation.
On the day of the installation, any cancellation caused by inappropriate site preparation, equipment inavailability, or other circumstances beyond the control of Cisco Systems is billed as an installation, and another installation must be scheduled.
Onsite installation delays caused by inappropriate site preparation, equipment unavailability, or other circumstances beyond the control of Cisco Systems will be billed at prevailing Field Engineer time and material rates.
Onsite installation pricing is based on the type and number of systems to be installed at a given site. The Cisco Systems Global Price List contains information on installation pricing.
To ensure a successful installation, complete the following tasks before the arrival of the Cisco Onsite installation personnel:
The onsite installer will complete the following tasks:
This section describes the general ventilation and power requirements your site must meet for your system to operate properly. It also includes information on preventing electrostatic discharge damage (ESD).
Some systems have an internal blower or fan that pulls air through a card cage and power supply. These systems are designed to operate in a level, dry, clean, well-ventilated, and air-conditioned environment. If either the intake or exhaust vents are blocked in any way, the air-cooling function might be impaired. Ensure that the system's location has adequate air circulation.
The proper placement of the chassis and the layout of your equipment rack or wiring closet are essential for successful system operation. Equipment placed too close together or inadequately ventilated can cause system malfunctions and shutdowns. In addition, chassis access panels made inaccessible by poor equipment placement can make system maintenance difficult.
Read and follow these precautions when planning your site layout and equipment locations. This will help avoid future equipment failures and reduce the likelihood of environmentally caused shutdowns.
The following describes the ventilation considerations that apply to using equipment racks for your system.
To connect the chassis to AC power, you need the proper AC receptacle at your site. The chassis power supply is either autoranging or is factory-configured for either 110 volts alternating current (VAC) or 240 VAC operation (230 VAC in the United Kingdom). All chassis include a 6-foot electrical power cord.
 | Warning If the voltage indicated on the chassis label is different from the power outlet voltage, do not connect the chassis to that receptacle. A voltage mismatch can cause equipment damage, create a shock hazard, and might pose a fire hazard. |
ESD damage, which occurs when electronic components are improperly handled, can result in complete or intermittent failures. ESD can impair electronic circuitry and equipment. Typically, the successful installation of the chassis should not require handling any system components; however, always follow ESD prevention procedures.
The size of your networks and the distance between connections on your networks will depend on the type of signal, the signal speed, and the transmission media (the type of cable 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 these descriptions are the IEEE-recommended maximum speeds and distances for signaling. For instance, the recommended maximum rate for V.35 is 2 megabits per second (Mbps), but it is commonly used at 4 Mbps without any problems.
 | Caution Even though you can usually get good results at speeds and distances far greater than those listed in this section, exceeding the maximum distances is not recommended or supported. If you understand the electrical problems that might arise and can compensate for them, you can get good results with rates and distances greater than those shown here; however, do so at your own risk. |
If your system has a Channel Interface Processor (CIP), be aware that the maximum transmission distance for ESCON (with LED) is 1.9 miles (3.1 km) point-to-point or 5.7 miles (9.2 km) with two ESCON directors. The maximum transmission distance for bus and tag is 400 feet (122 m). The IBM 3044 C/D (host side/remote side) copper-to-fiber repeater can be used to extend the bus and tag distance up to 1.2 miles (2 km).
Table 1 lists the cabling specifications and the connection limitations for 100-Mbps Fast Ethernet transmission over UTP, STP, and fiber optic cables.
| Parameter | RJ-45 | MII | SC-Type |
|---|---|---|---|
| Cable specification | Category 51 UTP2, 22 to 24 AWG3 | Category 3, 4, or 5, 150-ohm UTP or STP, or multimode optical fiber | 62.5/125 multimode optical fiber |
| Maximum cable length | - | 1.64 ft (0.5 m) (MII-to-MII cable4) | - |
| Maximum segment length | 328 ft (100 m) for 100BaseTX | 3.28 ft (1 m)5 or 1,312 ft (400 m) for 100BaseFX | 328 ft (100 m) |
| Maximum network length | 656 ft (200 m)5 (with 1 repeater) | - | 656 ft (200 m)5 (with 1 repeater) |
Table 2 summarizes characteristics of 100BaseTX and 100BaseFX with respect to IEEE 802.3u physical characteristics.
| Parameter | 100Base-FX | 100BaseTX |
|---|---|---|
| Data rate (Mbps) | 100 Mbps | 100 Mbps |
| Signaling method | Baseband | Baseband |
| Maximum segment length | 328 ft (100m) between repeaters | 328 ft (100m) between DTE1 and repeaters |
| Media | SC-type: dual simplex or single duplex for Rx and Tx | RJ-45MII |
| Topology | Star/Hub | Star/Hub |
If your system has a Fast Serial Interface Processor (FSIP), be aware that unbalanced G.703/G.704 interfaces allow for a longer maximum cable length than those specified for balanced circuits. Table 3 lists the maximum cable lengths for each FSIP E1-G.703/G.704 cable type by the connector used at the network (non-FSIP) end.
| Connection Type | BNC | Twinax |
|---|---|---|
| Balanced | - | 984 ft (300 m) |
| Unbalanced | 1968 ft (600 m) | - |
The maximum distances for Ethernet network segments and connections depend on the type of transmission cable used: 0.4-inch diameter coaxial (10Base5), 0.25-inch diameter coaxial (10Base2), or unshielded twisted-pair (10BaseT). Network connections to the coaxial-type cables are tapped into a network segment and must be spaced at specific intervals. The maximum number of connections (taps) per segment and the intervals at which they must be placed are listed in
Table 4. A maximum of four repeaters and seven bridges can be used to link segments in a single network.
| Description | 10Base5 | 10Base2 |
|---|---|---|
| Cable diameter | 0.4 in. (1.01 cm) | 0.25 in. (0.635 cm) |
| Maximum segment length | 1,640 ft (500 m) | 656 ft (200 m) |
| Maximum network length (with 4 repeaters) | 8,200 ft (2,500 m) | 3,280 ft (1,000 m) |
| Maximum connections (taps) per segment | 100 | 30 |
| Minimum connection (tap) spacing | 8.2 ft (2.5 m) | 1.64 ft (0.5 m) |
The unshielded twisted-pair (UTP) cabling used with 10BaseT is suitable for voice transmission, but might incur problems at 10-Mbps transmission rates. UTP wiring does not require the fixed spacing between connections that is necessary with the coaxial-type connections. Table 5 lists the IEEE recommendations for the UTP maximum distances between station (connection) and hub.
| Transmission Speed | Maximum Station-to-Hub Distance |
|---|---|
| 10 Mbps (10BaseT) | 328 ft (100 m) |
In general, the Workgroup Catalyst switch implementation of 10BaseT requires a minimum of Category 3 UTP cable as specified by the EIA/TIA 568B wiring standard.
Table 6 summarizes the characteristics of IEEE 802.3 Ethernet and Ethernet version 2 for 10BaseT.
| Parameter | IEEE 802.3 Ethernet | 10BaseT Ethernet Version 2 |
|---|---|---|
| Data Rate | 10 Mbps | 10 Mbps |
| Signaling method | Baseband | Baseband |
| Maximum segment length | 1640 ft (500 m) | 328 ft (100m) |
| Media | 50-ohm coax (thick) | Unshielded twisted-pair (UTP) |
| Topology | Bus | Star |
Table 7 lists the cabling specifications for 10-Mbps transmission over UTP and STP cables.
| Parameter | RJ-45 |
|---|---|
| Cable specification | Category 5 UTP1, 22 to 24 AWG2 |
| Maximum segment length | 328 ft (100 m) for 10BaseT |
| Maximum network length | 656 ft (200 m) with 1 repeater |
The distance limitations for single-mode and multimode Fiber Distributed Data Interface (FDDI) stations are listed in Table 8.
| Transceiver Type | Maximum Distance Between Stations |
|---|---|
| Single-mode | 6.2 miles (10 km)1 Up to 9.3 miles (up to 15 km)2 |
| Multimode | Up to 1.2 miles (2 km)2 |
Table 9 summarizes the characteristics of IEEE 802.3 Ethernet and Ethernet 10BaseFL.
| Parameter | IEEE 802.3 Ethernet | 10BaseFL Ethernet |
|---|---|---|
| Data rate | 10 Mbps | 10 Mbps |
| Signaling method | Baseband | Baseband |
| Media | 50-ohm coax (thick) | Multimode optical fiber |
| Topology | Bus | Star |
Table 10 lists the distance limitations for 10-Mbps transmission over multimode optical fiber cables.
| Parameter | ST Connections |
|---|---|
| Cable specification | Multimode fiber optic cable1 |
| Maximum segment lengths | 1,312 ft (400 m) for any repeater-to-DTE fiber segment 1,640 ft (500 m) with four repeaters and five segments 3,280 ft (1000 m) for any inter-repeater fiber segment 6,561 ft (2000 m) without a repeater |
Table 11 lists multimode optical fiber parameters required for 10BaseFL.
| Parameter | Multimode |
|---|---|
| Size | 62.5/125 micrometer (nominal diameter) optical fiber1 |
| Attenuation | < 3.75 dB/km, at 850 nanometers (nm) |
| Insertion loss | < 12.5 dB, at 850 nm |
| Bandwidth | > 160 MHzkm, at 850 nm |
| Propagation delay | < 5 microseconds/km |
The single-mode and multimode optical fiber connections conform to the following optical power parameters:
The High-Speed Serial Interface (HSSI) standard (EIA/TIA 612/613) specifies a maximum cable length of 50 feet (15 meters) for 52-Mbps HSSI connections. The typical (nominal) cable length between a HSSI Interface Processor (HIP) and a DSU is 6 feet (2 meters). The HSSI interface cable has 25 twisted pairs and a 50-pin plug at each end. Both DTE and DCE ports on the HIP and the DSU are 50-pin receptacles. The HSSI interface cable is similar to a small computer systems interface(SCSI)-II-type cable; however, the HSSI cable specification is more stringent than that for a SCSI-II.
| Caution Do not substitute a SCSI-II-type cable for a HSSI cable when connecting the HSSI interface. Trying to use a SCSI-II-type cable might prevent proper operation of the interface. |
Following are the MultiChannel Interface Processor (MIP) E1 specifications:
Following are the MIP T1 specifications:
The MIP T1 specifications comply with all AT&T Accunet TR 62411 specifications.
As with all signaling systems, serial signals can travel a limited distance at any given rate. Generally, the lower the baud rate, the greater the distance. Table 12 lists the relationship between transmission rate and distance for the HSSI.
| Baud Rate | Distance |
|---|---|
| 2400 | 200 ft (60 m) |
| 4800 | 100 ft (30 m) |
| 9600 | 50 ft (15 m) |
| 19200 | 25 ft (7.6 m) |
| 38400 | 12 ft (3.7 m) |
| 56000 | 8.6 ft (2.6 m) |
Balanced drivers allow EIA/TIA-449 signals to travel greater distances than EIA/TIA-232. Table 13 lists the standard relationship between baud rate and distance for EIA/TIA-449 signals.
| Baud Rate | Distance |
|---|---|
| 2400 | 4,100 ft (1250 m) |
| 4800 | 2,050 ft (625 m) |
| 9600 | 1,025 ft (312 m) |
| 19200 | 513 ft (156 m) |
| 38400 | 256 ft (78 m) |
| 56000 | 102 ft (31 m) |
| T1 | 50 ft (15 m) |
| Caution The distance limits for EIA/TIA-449 (listed in Table 13), which are also valid for V.35 and X.21, are recommended maximum distances; exceeding these maximum distances is not recommended or supported. In common practice, EIA/TIA-449 supports 2-Mbps rates, and V.35 supports 4-Mbps rates without any problems. |
The SONET specification for fiber optic transmission defines two types of fiber: single mode and multimode. Modes can be thought of as bundles of light rays entering the fiber at a particular angle. Single-mode fiber allows only one mode of light to propagate through the fiber, while multimode fiber allows multiple modes of light to propagate through the fiber. Because multiple modes of light propagating through the fiber travel different distances depending on the entry angles, causing them to arrive at the destination at different times (a phenomenon called modal dispersion), single-mode fiber is capable of higher bandwidth and greater cable-run distances than multimode fiber. The maximum distances for single-mode and multimode transmissions, as defined by SONET, are listed in Table 14. If the distance between two connected stations is greater than these maximum distances, significant signal loss can result, making transmission unreliable.
| Transceiver Type | Maximum Distance Between Stations1 |
|---|---|
| Single-mode | Up to 9 miles (14.8 kilometers) |
| Multimode | Up to 1.5 miles (2.4 kilometers) |
There is currently no maximum transmission distance defined for IEEE 802.5 (Token Ring) networks. Shielded twisted-pair cabling is most commonly used for rates of 16 Mbps, and either shielded or UTP cabling is used for rates of 1 and 4 Mbps. When planning your connections, remember that twisted-pair cabling is more susceptible to interference than other types of cabling, so plan the total network length and repeater spacing accordingly.
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 terminal plant wiring:
If you use UTP Ethernet cables in your plant wiring with a good distribution of grounding conductors, the plant wiring is unlikely to emit radio interference. When exceeding the distance listed in Table 5, use a high-quality twisted-pair cable with one ground conductor for each data signal.
Generally, if wires exceed recommended distances or pass between buildings, give special consideration to the effect of lightning strikes in your vicinity. The electromagnetic pulse (EMP) 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 might want to consult experts in electrical surge suppression and shielding. Most data centers cannot resolve the infrequent but potentially catastrophic problems just described without pulse meters and other special equipment. Identifying and resolving interference problems can consume an excessive amount of time. To avoid these problems, provide a properly grounded and shielded environment for your system, with special attention to issues of electrical surge suppression.
You might need some of the following data communications equipment to complete your installation. Your needs depend on many factors, including the interfaces you plan to use.
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