Cisco VG450 Manuale di istruzioni

Installing the Cisco VG450 Voice Gateway

While you do this installation, record your progress and site information. See the suggested format in the

Installation Checklist.

Tip

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement

1030

Danger

Read the installation instructions before connecting the system to the power source. Statement 1004

This chapter contains the procedures for installing your Cisco VG450 Voice Gateway and consists of the

following sections:

Danger

•Safety Recommendations, on page 1

•Unpacking and Inspection, on page 5

•Install the Cisco VG450 Voice Gateway, on page 5

•Chassis Grounding, on page 10

•Power-On Procedure, on page 11

Safety Recommendations

The following information is included to alert you to safety recommendations and best practices when working

with this equipment.

Maintaining Safety with Electricity

Follow these guidelines when working on equipment powered by electricity.

High leakage current—earth connection essential before connecting to system power supply. Statement 342

Danger

Installing the Cisco VG450 Voice Gateway

When installing the product, please use the provided or designated connection cables/power cables/AC

adaptors/batteries. Using any other cables/adaptors could cause a malfunction or a fire. Electrical Appliance

and Material Safety Law prohibits the use of UL-certified cables (that have the "UL" or "CSA" shown on the

cord), not regulated with the subject law by showing "PSE" on the cord, for any other electrical devices than

products designated by CISCO. Statement 371

Danger

This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the

protective device is rated not greater than 15A minimum, 60VDC, 35A minimum, 60VDC, 45A minimum,

60VDC, or 50A minimum, 60VDC for the Circuit Breaker. Statement 1005

Danger

This equipment has been designed for connection to TN and IT power systems. Statement 1007

Danger

Class 1 laser product. Statement 1008

Danger

There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same

or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's

instructions. Statement 1015

Danger

Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement

1001

Danger

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage

(TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and

WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021

Danger

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence

of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician

if you are uncertain that suitable grounding is available. Statement 1024

Danger

This unit might have more than one power supply connection. All connections must be removed to de-energize

the unit. Statement 1028

Danger

Installing the Cisco VG450 Voice Gateway

Maintaining Safety with Electricity

Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages

and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other

equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all

cards, faceplates, front covers, and rear covers are in place. Statement 1029

Danger

To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles

on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the

weight of the unit. Statement 1032

Danger

Do not use this product near water; for example, near a bathtub, wash bowl, kitchen sink or laundry tub, in a

wet basement, or near a swimming pool. Statement 1035

Danger

Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

Statement 1036

Danger

Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the

network interface. Statement 1037

Danger

Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk

of electric shock from lightning. Statement 1038

Danger

To report a gas leak, do not use a telephone in the vicinity of the leak. Statement 1039

Danger

Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network

voltages. Statement 1041

Danger

This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do not touch

the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11 port, or the

associated circuit-board when the ringer is active. The ringer is activated by an incoming call. Statement 1042

Danger

Installing the Cisco VG450 Voice Gateway

Maintaining Safety with Electricity

For diverging beams, viewing the laser output with certain optical instruments within a distance of 100 mm

may harm your eyes. For collimated beams, viewing the laser output with certain optical instruments designed

for use at a distance may harm your eyes. Statement 1054

Danger

Installation of the equipment must comply with local and national electrical codes. Statement 1074

Danger

General Safety Practices

Follow these guidelines to ensure personal safety and to protect the equipment:

• Keep the chassis area clear and dust-free during and after installation.

• Put the removed chassis cover in a safe place.

• Keep tools away from walk areas where you and others could fall over them.

• Do not wear loose clothing that could get caught in the chassis.

• Wear safety glasses if you are working under any conditions that might be hazardous to your eyes.

This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly

connecting this equipment to a general-purpose outlet could be hazardous. The telecommunications lines must

be disconnected 1) before unplugging the main power connector or 2) while the housing is open, or both.

Statement 1043

Danger

Safety Tips

Use these tips as safety guidelines when installing or working around this equipment:

• Locate the emergency Power-off switch for the room in which you are working. Then, if an electrical

accident occurs, you can act quickly to turn off the power.

• Disconnect all power before installing or removing a chassis.

• Do not work alone if potentially hazardous conditions exist.

• Never assume that power is disconnected from a circuit. Always check.

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension

cables, and missing safety grounds.

• If an electrical accident occurs, proceed as follows:

• Use caution; do not become a victim yourself.

• Turn off power to the system.

• If possible, send another person to get medical aid. Otherwise, assess the condition of the victim

and then call for help.

•Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate

action.

Installing the Cisco VG450 Voice Gateway

General Safety Practices

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD occurs when

electronic components are improperly handled; it 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 clip to the ESD-strap connection jack (to the left of the power switch on the rear of the

chassis) or to an unpainted chassis frame surface.

For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10

megohm (Mohm).

Caution

Unpacking and Inspection

Do not unpack the Cisco VG450 until you are ready to install it. If the installation site is not ready, keep the

chassis in its shipping container to prevent accidental damage.

The Cisco VG450, cables, printed publications, 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 the following items:

• Cisco VG450 Voice Gateway

• Power cord, 6-foot (1.8-meter)

• RJ-45-to-DB-25 adapter cable (labeled Console)

• RJ-45-to-DB-9 adapter cable (labeled Auxiliary)

• Rack-mounting brackets for 19-inch rack (one pair) with screws for attaching to chassis

• Chassis guard for wall-mounting applications

• Grounding lug and fasteners

Inspect all items for shipping damage. If anything appears damaged, or if you encounter problems when

installing or configuring your system, contact a customer service representative.

Install the Cisco VG450 Voice Gateway

To prevent damage to the chassis, never attempt to lift or tilt the chassis by holding it by the plastic panel on

the front. Always hold the chassis by the sides of the metal body.

Caution

You can install the Cisco VG450 Voice Gateway in one of the following ways:

Installing the Cisco VG450 Voice Gateway

Preventing Electrostatic Discharge Damage

Setting the Chassis on a Desktop

You can place the router on a desktop, bench top, or shelf.

Do not set the chassis in an area where the high acoustic noise can be an issue.

Note

Do not place anything on top of the router that weighs more than 10 pounds (4.5 kg), and do not stack the

gateway hardware on a desktop. Excessive distributed weight of more than 10 pounds, or pound point load

of 10 pounds on top could damage the chassis.

Caution

To prevent airflow restriction, allow clearance around the ventilation openings to be at least 1 inch (2.54cms).

Statement 1076.

Warning

After you install the voice gateway, you must connect the chassis to a reliable earth ground. For the chassis

ground connection procedures, see the Chassis Grounding section.

Attach Cisco VG450 Voice Gateway Chassis to Wall

Step 1 Attach the wall-mounting brackets to the voice gateway chassis as shown in the following figure, using the four PHMS

screws and the plastic spacers provided for each bracket.

Do not over-torque the screws. The recommended torque is 15 to 18 inch-lb (1.7 to 2.0 N-m).

Caution

To attach to a wall stud, each bracket requires one number-10 wood screws (round- or pan-head) with number-10

washers, or two number-10 washer-head screws. The screws must be long enough to penetrate at least 1.5

inches (38.1 mm) into the supporting wood or metal wall stud.

Note

For hollow-wall mounting, each bracket requires two wall anchors with washers. Wall anchors and washers

must be size number 10. Route the cables so that they do not put a strain on the connectors or mounting hardware.

Note

Your chassis installation must allow unrestricted airflow for chassis cooling.

Caution

Step 2 Attach the voice gateway to the wall using the brackets.

If you prefer, you can also install the voice gateway diagonally using the other two sides.

Note

After you install the voice gateway, you must connect the chassis to a reliable earth ground. For the chassis ground

connection procedures, see the Chassis Grounding section.

Installing the Cisco VG450 Voice Gateway

Setting the Chassis on a Desktop

Mount Cisco VG450 Voice Gateway Chassis in Rack

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to

ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the

unit in the rack. Statement 1006.

Warning

You can install the Cisco VG450 Voice Gateway in 19-inch (48.26-cm) EIA and 23-inch (58.42-cm)

Southwestern Bell Corporation (SBC) racks. You can also mount the voice gateway in a 600-mm ETSI rack.

Use the standard brackets shipped with the hardware for mounting the chassis in a 19-inch EIA rack; you can

order optional larger brackets for mounting the chassis in a 23-inch SBC rack.

You can mount the voice gateway in the following ways:

• Center-front mounting: Brackets attached in the center front of the chassis with only the front panel

facing forward.

•Center-back mounting: Brackets attached in the center back of the chassis with only the back panel facing

forward.

• Front mounting: Brackets attached at the front of the chassis with the front panel facing forward.

• Back mounting: Brackets attached at the back of the chassis with the back panel facing forward.

1. Attach the mounting brackets to the chassis as shown in the following images, using the screws provided.

Do not over-torque the screws. The recommended torque is 15 to 18 inch-lb (1.7 to 2.0 N-m).

Caution

2. Attach the second bracket to the opposite side of the chassis. Use a number-2 Phillips screwdriver to

install the number-8 bracket screws.

Your chassis installation must allow unrestricted airflow for chassis cooling.

Caution

Installing the Cisco VG450 Voice Gateway

Mount Cisco VG450 Voice Gateway Chassis in Rack

Figure 1: Bracket Installation for Front Mounting

Figure 2: Bracket Installation for Back Mounting

23-inch SBC brackets4Screws1

Installing the Cisco VG450 Voice Gateway

Mount Cisco VG450 Voice Gateway Chassis in Rack

19-inch EIA brackets419-inch EIA brackets3

3. Use the screws provided with the rack to install the chassis in the rack. For both the 19-inch EIA brackets

and the 23-inch SBC brackets, start the lower pair of screws first, and rest the brackets on the lower screws

while you insert the upper pair of screws.

The screw slots in the brackets are spaced to line up with every second pair of screw holes in the rack. When

the correct screw holes are used, the small, threaded holes in the brackets line up with unused screw holes in

the rack. If the small holes do not line up with the rack holes, you must raise or lower the brackets to the next

rack hole.

Tip

The following image shows a typical installation with back mounting

Figure 3: Bracket Installation for Back Mounting

Mounting Screws (4)1

Installing the Cisco VG450 Voice Gateway

Mount Cisco VG450 Voice Gateway Chassis in Rack

After you install the voice gateway, you must connect the chassis to a reliable earth ground. For the chassis

ground connection procedures, see the Chassis Grounding section.

Chassis Grounding

To reduce the risk of electric shock, the chassis of this equipment needs to be connected to permanent earth

ground during normal use. Statement 445

Warning

Use a size 10 AWG (4 mm2) or larger copper wire and an appropriate user-supplied ring terminal with an

inner diameter of 1/4 in. (5–7 mm).

To install the ground connection for your router, perform the following steps:

SUMMARY STEPS

1. Strip one end of the ground wire to the length required for the ring terminal.

2. Crimp the ground wire to the ring terminal, using a crimp tool of the appropriate size.

3. Attach the ground lug or ring terminal to the chassis as shown in the following image. Use one of the

screws provided. Tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).

4. Connect the other end of the ground wire to a known reliable earth ground point at your site.

DETAILED STEPS

Step 1 Strip one end of the ground wire to the length required for the ring terminal.

Step 2 Crimp the ground wire to the ring terminal, using a crimp tool of the appropriate size.

Step 3 Attach the ground lug or ring terminal to the chassis as shown in the following image. Use one of the screws provided.

Tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).

Installing the Cisco VG450 Voice Gateway

Chassis Grounding

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