Cisco VG202 and Cisco VG204 Voice Gateways Hardware Installation Guide - Overview of the Cisco VG202 and Cisco VG204 Voice Gateways [Cisco VG200 Series Gateways]

Table Of Contents

Overview of the Cisco VG202 and Cisco VG204 Voice Gateways

Overview

Physical Description

LEDs

Chassis Grounding

Memory

Port Numbering Conventions

Specifications

Software Elements

Configuration Connections

Interfaces and Service Capabilities

Interface Options

Cisco VG202 and Cisco VG204 Voice Gateway Deployment

Overview of the Cisco VG202 and Cisco VG204 Voice Gateways

This chapter provides a brief description of the Cisco VG202 and Cisco VG204 voice gateways (VGs) and contains the following sections:

•Overview

•Physical Description

•Chassis Grounding

•Memory

•Port Numbering Conventions

•Specifications

•Software Elements

•Interfaces and Service Capabilities

•Cisco VG202 and Cisco VG204 Voice Gateway Deployment

Overview

The Cisco VG202 and Cisco VG204 voice gateways are analog voice gateways for the service provider, commercial, and enterprise unified communication markets. Both voice gateways provide voice connectivity to devices such as analog phones, fax machines, and modems.

The Cisco VG202 and Cisco VG204 voice gateways provide support for 2-FXS (Cisco VG202) and 4-FXS (Cisco VG204) ports and parity with Cisco IOS fax/modem, security, and Session Initiation Protocol (SIP) features. Both voice gateways are configurable with Cisco Unified Communications Manager Express (CUCME) or Cisco Unified Communications Manager (CUCM).

The Cisco VG202 and Cisco VG204 voice gateways support the following interfaces:

•10/100 Fast Ethernet connection

•RJ-11 Foreign Exchange Station (FXS) interface

•DC input

Note The Cisco VG202 and Cisco VG204 voice gateways are fixed- configuration voice gateways and do not support interface cards.

The Cisco VG202 and Cisco VG204 voice gateways can be mounted on a wall or set on a desktop surface.

Figure 1-1 shows the Cisco VG202 chassis as seen from the front panel.

Figure 1-1 Cisco VG202 Voice Gateway Front Panel

The Cisco VG202 voice gateway supports two RJ-11 ports and supports two FXS voice ports with two 10/100 Fast Ethernet ports.

Figure 1-2 shows the Cisco VG204 chassis as seen from the front panel.

Figure 1-2 Cisco VG204 Voice Gateway Front Panel

The Cisco VG204 voice gateway supports four RJ-11ports and supports four FXS voice ports with two 10/100 Fast Ethernet ports.

Physical Description

Figure 1-3 shows the interfaces and ports on the Cisco VG202 voice gateway. Figure 1-4 shows the interfaces and ports on the Cisco VG204 voice gateway. All interface ports are on the back of the chassis.

Figure 1-3 Cisco VG202 Voice Gateway Chassis

1

Fast Ethernet port 1,
Fast Ethernet port 0

2

Serial port—console or auxiliary

3

FXS ports

4

Power connector

5

Chassis ground connection

6

Kensington security slot

Figure 1-4 Cisco VG204 Voice Gateway Chassis

1

Fast Ethernet port 1,
Fast Ethernet port 0

2

Serial port—console or auxiliary

3

FXS ports

4

Power connector

5

Chassis ground connection

6

Kensington security slot

Note A Kensington security slot is located on the back panel of the voice gateway. To secure the voice gateway to a desktop or other surface, use the Kensington lockdown equipment.

Note The Fast Ethernet built-in switch ports provide connections to 10/100BASE-T (10/100-Mbps) Fast Ethernet networks.

LEDs

Figure 1-5 shows the LEDs on the Cisco VG204 voice gateway. All LEDs are on the front of the chassis.

Note LEDs on the Cisco VG202 and Cisco VG204 are the same; however, the Cisco VG202 has LEDs for only two FXS ports.

Table 1-1 describes the status of each LED on the Cisco VG202 and Cisco VG204.

Figure 1-5 Cisco VG204 Voice Gateway LEDs

1

OK LED

2

FXS0, FXS1, FXS2, FXS3 LEDs

3

Fast Ethernet 0/0 and 0/1 LEDs

Table 1-1 Cisco VG202 and Cisco VG204 LEDs

No

LED/Color

Description

1

PWR OK—green

Off—no power
Steady on—normal operation
Slow blink—bootup phase or in ROMMON monitor mode

2

FXS ports 0 through 3—green

Off—On hook
Steady On—Off hook

3

FE ports 0/1—green

Off—No link
Steady on—link
Blinking—TXD/RXD data

Chassis Grounding

For information on grounding the chassis, see the "Installing the Ground Connection" section on page 3-7.

Warning 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

Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means by security. Statement 1017

Warning No user-serviceable parts inside. Do not open. Statement 1073

Warning This equipment needs to be grounded. Use a green and yellow 12 to 14 AWG ground wire to connect the host to earth ground during normal use. Statement 242

Warning The importance of proper grounding cannot be overemphasized. It will minimize the potential for damage to your system and maximize safety at the system site. We recommend you consult a licensed electrician or your local electric utility company if you have any questions. Statement 269

Warning A ground wire must always be a single piece of wire. Never splice two wires together for a ground. Corrosion and weathering can lead to a poor connection at the splice, making the ground ineffective and dangerous. Statement 270

Warning Use copper conductors only. Statement 1025

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

Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040

Memory

The Cisco VG202 and VG204 voice gateways contain flash memory and main memory.

The onboard flash memory contains the Cisco IOS software image, boot flash contains the ROMMON boot code, and the anti-counterfeiting solution contains the cookie configuration.

The Cisco IOS software is contained in 128 MB of flash memory on the Cisco VG202 and VG204 voice gateways. Onboard CPU memory is 128 MB.

Port Numbering Conventions

Port numbering conventions for the Cisco VG202 and VG204 voice gateways are as follows:

•Fast Ethernet ports are numbered 0 and 1, from left to right.

•FXS voice port numbering begins at 0 and reaches a maximum of 2 or 4, depending on the number of voice ports, from left to right.

Specifications

Table 1-2 shows the hardware and electrical speicfications for the Cisco VG202 and VG204 voice gateways.

Table 1-2 Cisco VG202 and Cisco VG204 Voice Gateway Technical Specifications

Characteristic

Value

Dimensions

1.75H x 9.75W x 8.0D in. (44.45 x 247.65 x 203.2 mm)

Weight

3.422 lb (1.55 kg) max

Input power

30 W

Operating temperature

32 to 104×F (0 to 40×C)

Operating humidity

5 to 95%, noncondensing

Noise level

n/a

Agency approvals

See the Regulatory Compliance and Safety Information for the Cisco VG202 and Cisco VG204 Voice Gateways document.

Software Elements

The operating system for the Cisco VG202 and VG204 voice gateways is the Cisco IOS software that resides in flash memory.

Configuration Connections

You can use an ASCII terminal or a PC to configure a Cisco VG202 or Cisco VG204 voice gateway. The configuration can be performed in several ways:

•Locally, with a direct connection through the serial port

•Remotely, with a connection through the serial port

•Through Telnet and TFTP

Interfaces and Service Capabilities

Table 1-3 describes the various physical ports and the services that each port type supports, including the following.

•The Cisco VG202 and VG204 voice gateways provide a connection to the terminal or PC for software configuration or troubleshooting. The console port may be configured as a virtual auxiliary port for dial backup and remote management.

•Two Fast Ethernet ports.

•Two or four FXS ports.

Table 1-3 Cisco VG202 and VG204 Voice Gateways Interfaces and Service Capabilities

Port

Interface Configurations

Interface To

Services Supported

Details

Console/AUX
Port

EIA/TIA-232 asynchronous serial (DCE)

ASCII terminal or
personal computer

Local administrative access

RJ-45 physical interface

Fast Ethernet
Ports 0/0, 0/1

10/100BASE-T (802.3)

LAN

Data

RJ-45 physical interface

Ports 0 to 2, or 0 to 4

FXS (loop-start or ground-start)

Analog phone, fax, or modem

Analog voice/fax or modem

2-port FXS, on premises only
4-port FXS, on premises only

Interface Options

Table 1-4 lists the interface options that are available in the Cisco VG202 and Cisco VG204 voice gateways.

Table 1-4 Interface Options for Cisco VG202 and Cisco VG204 Voice Gateways

Voice Gateway

RJ-11¹

RJ-45²

FE³

FXS⁴

Cisco VG202 voice gateway

2

Yes

2

2

Cisco VG204 voice gateway

4

Yes

2

4

¹Analog voice interface.

²Analog voice interface.

³10/100BASE-T ports.

⁴Foreign exchange station.

Cisco VG202 and Cisco VG204 Voice Gateway Deployment

Figure 1-6 shows a typical deployment scenario for the Cisco VG202 and Cisco VG204 voice gateways.

Figure 1-6 Typical Deployment of Cisco VG202 and Cisco VG204 Voice Gateways

1

Fast Ethernet port

2

Console port

3

Fast Ethernet straight-through cable connected to an Ethernet hub

4

RJ-45-to-DB9 console cable connected to a PC