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Overview of the Cisco VG350 Voice Gateway
This chapter provides a brief description of the Cisco VG350 Voice Gateway (VG) and contains the following sections:
•Interfaces and Service Capabilities
•Physical Description and LEDs
Overview
The Cisco VG350 service module is a high-density analog voice gateway. It is an intermediate path that enables TDM to IP transition.
The Cisco VG350 Voice Gateway supports the following interfaces:
•Gigabit Ethernet (GE)
•USB
•High-Speed WAN Interface Card (HWIC) and Voice/WAN Interface Card (VWIC)
•Double-Wide Service Module (DWSM) interface
VG350 Voice Gateway Chassis
The following figures show the front and back panels of the VG350 Voice Gateway Chassis:
•Figure 1-1 shows the Front Panel.
•Figure 1-2 shows the Back Panel.
Figure 1-1

Front Panel of the VG350 Voice Gateway
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AC OK1 |
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ACT status LED |
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SYS status LED |
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PS1 (Right), PS2 (Left) |
1 LED goes off if the AC power fails or is disconnected. It does not go on and off with the power switch. |
Figure 1-2 Back Panel of the VG350 Voice Gateway

Configuration Options
The following configuration options are available for Cisco VG350 Voice Gateway:
Table 1-1 Configuration Options Possible with Cisco VG350 Voice Gateway with the Double-Wide High Density Analog Service Module (DWSM)
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1 |
SM-D-72FXS |
SM-D-72FXS |
144 |
2 |
SM-D-72FXS |
SM-D-48FXS-E |
120 |
4 |
SM-D-48FXS-E |
SM-D-48FXS-E |
96 |
Interfaces and Service Capabilities
Table 1-2 lists the built-in interface ports for the Cisco VG350.
Table 1-2 Built-in Interfaces for the Cisco VG350
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GE RJ-45 |
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Cisco VG350 Voice Gateway |
31 |
2 |
2 |
1 |
1 |
1 |
1 One RJ-45 with two GE SFPs or three RJ-45 GEs. |
Physical Description and LEDs
LED Indicators
Table 1-3 describes the LED indicators for the Cisco VG350.
Specifications
Table 1-4 details the technical specifications of the Cisco VG350 Voice Gateway.
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Physical |
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Dimensions (H x W x D) |
5.22 x 17.25 x 18.75 in. (88.9 x 438.2 x 476.2 mm), 3 RU height |
Weight with AC PS (without modules) |
39 lbs (17.69 kg) |
Weight with AC PS (without modules) |
40 lbs (18.14 kg) |
Weight (fully configured) |
60 lbs (27.21 kg) |
Power |
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AC input power |
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• • • • • |
100 to 240 VAC, autoranging |
47 to 63 Hz |
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0.4 to 3.5 A (configuration dependent) |
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0.4 to 7.0 A (configuration dependent) |
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30 A maximum at 115 VAC 60 Hz 60 A maximum at 230 VAC 50 Hz |
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Power consumption |
85 to 400 W, 600 to 1370 BTU/hr (configuration dependent) |
With AC |
85 to 800 W, 600 to 2740 BTU/hr (configuration dependent) |
Ports |
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Console port |
One RJ-45 connector and one mini USB Type B, USB 2.0 compliant |
Auxiliary port |
RJ-45 connector |
USB ports |
Two USB Type A, USB 2.0 compliant, 2.5 W (500 mA) maximum1 |
10/100/1000 Gigabit Ethernet |
Three RJ-45 connectors (GE 0/0, GE 0/1, GE 0/2) auto-MDIX2 |
SFP |
Two RJ-45 connectors support SFP modules. When an SFP module is installed, the adjacent RJ-45 GE connector is disabled. |
Environmental |
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Operating humidity |
5 to 85%, noncondensing |
Operating humidity (short-term per NEBS) |
5% to 90%, but not to exceed 0.024 kg water/kg of dry air |
Operating temperature up to 5906 ft (1800 m) elevation |
32 to 104°F (0 to 40°C) |
Operating temperature up to 9843 ft (3000 m) elevation |
32 to 104°F (0 to 40°C) |
Operating temperature up to 13,123 ft (4000 m) elevation |
32 to 86°F (0 to 30°C) |
Temperature (short-term per NEBS/1800m max altitude) |
23 to 122°F (-5°C to 50°C) |
Operating altitude maximum |
13,123 ft (4000 m) ![]() Note |
Transportation and Storage |
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Non-operating temperature |
-40 to 158°F (-40 to 70°C) |
Non-operating humidity |
5 to 95% RH |
Non-operating altitude |
15,000 ft (4570 m) |
Acoustic |
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Acoustic: Sound Pressure (Typical/Maximum) |
57.6 to 77.6 dBA |
Acoustic: Sound Power (Typical/Maximum) |
67.8 to 84.7 dBA |
Compliance |
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Safety compliance |
• • • equipment [US] • equipment including electrical business equipment [Canada] • • • |
Immunity compliance |
• • • • • • |
EMC compliance |
• • • • • • • • – – • – – |
1 480 Mb/s individually, bandwidth is shared when both are used. |
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Warning ![]() |
Software Elements
The operating system for the Cisco VG350 Voice Gateway 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 VG350 Voice Gateway. The configuration can be performed in several ways:
•Locally, with a direct connection through the console port
•Remotely, with a connection through the auxiliary port and a modem
•Through Telnet and TFTP
Configuration Methods
Automated Configuration
If your Cisco VG350 Voice Gateway was ordered with the Simple Network-Enabled Auto-Provision (SNAP) option, no onsite configuration is required. When the Cisco VG350 Voice Gateway is powered on and connected, the SNAP application downloads the applicable configuration files automatically.
Manual Configuration
When a Cisco VG350 Voice Gateway is first installed, use the procedure in the "Power-On Procedure" section for the initial configuration. This sets the basic communication parameters.
After the Cisco VG350 Voice Gateway is operating and able to communicate, use the procedures in Cisco VG350 Voice Gateway Software Configuration Guide to configure the specific services and functions or to make changes to the existing configuration.
There are multiple methods for configuring a Cisco VG350 Voice Gateway:
•System configuration dialog
•Configuration mode—Cisco IOS software CLI
•setup command facility—Remote configuration through a LAN
•SNMP-based application—CiscoView or HP OpenView
•HTTP-based configuration server—Provides access to the CLI from a web browser