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This chapter describes the tasks you must perform before you begin to install the access server and includes the following sections:
Any device that uses electricity must be handled carefully; follow these guidelines to ensure general safety:
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Warning Ultimate disposal of this product should be handled according to all national laws and regulations. To see translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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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 translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
Follow these guidelines when you work on equipment powered by electricity.
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Warning When installing the unit, the ground connection must always be made first and disconnected last. . Do not work alone if potentially hazardous conditions exist. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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Warning Read the installation instructions before you connect the system to its power source. To see translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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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 translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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 you remove and replace 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 guard against ESD damage and shocks, the wrist strap and cord must operate properly. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
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Caution For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohm (Mohm). |
The following items are included with the access server:
You might need the following equipment, which is not included:
When you set up your access server, consider distance limitations and potential electromagnetic interference (EMI) as defined by the Electronic Industries Association (EIA).
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Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. To see translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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Warning The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or connection hardware. Any hardwired connection (other than by a nonremovable, connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers. To see translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
Table 2-1 lists the network specifications to consider before connecting the AS54-DFC-8CT1 to a network.
| Description | Specification |
|---|---|
Line rate | 1.544 Mbps |
Data rates | number x 56 or number x 64 Kbps, where number = 1 to 24 |
Standards | AT&T Pub. 62411, 54016, and 43801 |
Table 2-2 lists the network specifications to consider before connecting the AS54-DFC-8CE1 to a network.
| Description | Specification |
|---|---|
Line rate | 2.048 Mbps |
Data rates | number x 56 or number x 64 Kbps, where number = 1 to 31 |
Table 2-3 lists the network specifications to consider before connecting the AS54-DFC-CT3 to a network.
| Description | Specification |
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Line rate | 44.736 Mbps |
Data rates | 672 DS0 channels at 64 Kbps |
You can install an AS54-DFC-8CT1/CE1 (see Figure 2-1) in any slot of the access server chassis. This card provides eight RJ-45 PRI channelized T1 or E1 ports through a special cable.
This card also contains bantam jacks for troubleshooting purposes, which are controlled through the software.
The T1 ports are configured as 100-ohm per port. For the E1 WAN card, the eight ports can be configured as 75- or 120-ohm lines. The factory-set default is 120-ohm. To choose input impedence for the AS54-DFC-8CE1 ports, use a software command to change the impedance. For information on software commands, see the Cisco AS5400 Universal Access Server Card Installation Guide for details. See Appendix C "Cabling Specifications" for cable and port pinouts.
You can install an AS54-DFC-CT3 in any carrier slot of the access server chassis.
An AS54-DFC-CT3 provides physical line termination for a channelized T3 ingress trunk line. It uses an onboard multiplexer to multiplex 28 channelized T1 lines into a single channelized T3 line.
This card provides physical line termination for up to 672 DS0 channels and uses onboard HDLC controllers to terminate digital (ISDN) calls up to 248 DS0 channels.
You can use the bantam jacks to monitor a T1 line or test any one of the individual T1 circuits in drop and insert mode.
You can install an AS54-DFC-108NP in any carrier slot of the access server chassis.
An AS54-DFC-108NP does not require external connections. This card provides 108 universal port sessions simultaneously, with each session capable of terminating or originating ISDN sessions over a DS0.
Two Fast Ethernet (FE) ports are RJ-45 ports located on the rear panel of the access server: FE0 and FE1 (selectable). To configure the Ethernet ports, refer to the Cisco AS5400 Universal Access Server Software Configuration Guide. Both ports use unshielded twisted-pair (UTP) cable and require Category 5 cable. The maximum segment distance is 328 feet (100 meters). UTP cables look like the cables used for ordinary telephones; however, UTP cables meet certain electrical standards that telephone cables do not. Cables are not included.
The access server includes an asynchronous serial console port and an auxiliary port. The console and auxiliary ports provide access to the access server 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 access server 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 data terminal equipment (DTE) or data communications equipment (DCE) device at the end of the cable. Your access server arrives 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 rollover 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 rollover 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 Chapter 3
"Installing the Cisco AS5400." See Appendix C "Cabling Specifications" for cable and port pinouts.
The access server 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 access server arrives with 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 rollover cable with the male RJ-45-to-DB-25 adapter (labeled MODEM).
For detailed information about connecting devices to the auxiliary port, see Chapter 3 "Installing the Cisco AS5400." See Appendix C "Cabling Specifications" for cable and port pinouts.
Two high speed 12-in-1 serial ports on the rear panel of the access server provide backhaul WAN and IP support.
The following types of serial interface standards (in DTE/DCE) are supported:
Each interface supports up to 8 Mbps.
The three pins on the alarm port are connected to the output of a relay. This relay is controlled by system software. With the alarm ports connected and configured, Cisco IOS software polls every one second to detect the failure events that are configured and turns ON the alarm when it detects any failure event.
The BITS port is a coaxial interface that provides external synchronized clocking through a Timing Signal Generator (TSG). See Figure 2-4.
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.
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Warning The device is designed to work with TN power systems. To see translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
The access server AC power supply includes the following features:
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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 translations of the warnings that appear in the publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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Caution In a DC power supply installation, do not connect the 48 VDC Return to chassis ground at the Cisco AS5400. A single-point ground is recommended at the power distribution rack. |
Posted: Wed Aug 23 12:56:04 PDT 2000
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