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Statement 1047—

Overheating Prevention

To reduce the risk of fire or bodily injury, do not operate the unit in an area that exceeds the maximum
recommended ambient temperature of: 40 degrees C.

Warning

What to do next

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 in this hardware installation guide.

Chassis Grounding

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

Before you begin

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).

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).

Step 4

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

Figure 6: Chassis Grounding

In the above image, 1 indicates Ground Lug.

Installing the Cisco VG420 Voice Gateway

9

Installing the Cisco VG420 Voice Gateway

Chassis Grounding

Summary of Contents for VG420

Page 1: ... 371 Power Cable and AC Adapter When installing the product use the provided or designated connection cables power cables AC adapters and batteries Using any other cables or adapters 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 ...

Page 2: ... the Chassis to Earth Ground To reduce the risk of electric shock the chassis of this equipment needs to be connected to permanent earth ground during normal use Warning Statement 338 Prevent Accidental Discharge To prevent accidental discharge in the event of a power line cross route on premise wiring away from power cables and off premise wiring or use a grounded shield to separate the on premis...

Page 3: ...8 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 Bracket...

Page 4: ...r chassis installation must allow unrestricted airflow for chassis cooling Attention Step 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 Installing the Cisco VG420 Voice Gateway 4 Installi...

Page 5: ...Figure 2 I O Side Mounting Installing the Cisco VG420 Voice Gateway 5 Installing the Cisco VG420 Voice Gateway Mounting the Voice Gateway in Rack ...

Page 6: ...ll 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 The following images represent rack mounting for the Cisco VG420 Voice Gateway Installing the Cisco VG420 Voice Gateway 6 Installing the Cisco VG420 Voice Gateway Mounting the Voice Gateway in Rack ...

Page 7: ...Figure 4 Rack Mounting Rack Mount Screw 1 23 inch Rack 2 Installing the Cisco VG420 Voice Gateway 7 Installing the Cisco VG420 Voice Gateway Mounting the Voice Gateway in Rack ...

Page 8: ...s 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 Warning Statement 1018 Supply Circuit To reduce risk of electric shock and fire take care when connecti...

Page 9: ... 4 mm2 or larger copper wire and an appropriate user supplied ring terminal with an inner diameter of 1 4 in 5 7 mm 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 th...

Page 10: ...Installing the Cisco VG420 Voice Gateway 10 Installing the Cisco VG420 Voice Gateway Chassis Grounding ...

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