For the dual AC power supply note the following:

The LED on the left side of the chassis is only connected when the dual AC is used. It is not relevant to the single AC power connection.

If only a single socket is connected to the AC power, (while the other plug is left unconnected) the chassis LED (on the left side) is lit red, indicating that one of the dual power inlets is disconnected.

When both the AC power cables are connected, one of the plugs can be disconnected under power without affecting operation, in which case the chassis left LED is lit red.

UPS can be connected to either (or both) of the AC connections.

The dual AC connections operate in a 1+ 1 configuration and provide load- sharing redundancy.

Each of the dual power cables can be connected to different power phases.

Connecting the DC Power Supply

To connect the V7122 gateway to a DC power supply use one of these two options:

ƒDC Terminal block with a screw connection type.

ƒDC Terminal block with a crimp connection type.

To connect DC power using a DC terminal block screw connector, follow these 3 steps:

1Create a DC cable by inserting two 14-16 AWG insulated wires into the supplied adaptor (see Figure 9) and fasten the two screws, each one located directly above each wire.

2Connect the two insulated wires to the correct DC power supply. Ensure that the connections to the DC power supply maintain the correct polarity.

3Insert the terminal block into the DC inlet located on the V7122 gateway.

Figure 9 DC Terminal Block Screw Connector

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V7122 Digital Gateway Installation Guide

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3Com V7122 manual Connecting the DC Power Supply

V7122 specifications

The 3Com V7122 is a robust and versatile Layer 2/3 switch designed for small to medium-sized enterprises seeking a reliable networking solution. It plays a crucial role in improving network performance and enhancing connectivity for a growing number of devices in today’s digital landscape.

One of the standout features of the V7122 is its advanced switching capabilities. It supports 24 Ethernet ports, providing ample connectivity options for various end devices like computers, printers, and cameras. The switch offers a combination of copper and fiber interfaces, ensuring flexibility in deployment, whether for short-range or long-range connectivity.

The V7122 is equipped with a sophisticated traffic management system, which includes Quality of Service (QoS) features. This allows organizations to prioritize network traffic according to application requirements, ensuring bandwidth is allocated effectively. With this capability, time-sensitive applications such as voice-over-IP (VoIP) and video conferencing can function smoothly without interruption.

Another significant technology incorporated into the 3Com V7122 is its compatibility with VLAN (Virtual Local Area Network) configurations. This feature enables the segmentation of a network into multiple virtual networks, enhancing security and reducing congestion by limiting broadcast traffic. The ability to create subnets helps organizations to better manage their network resources and maintain optimal performance.

Moreover, the V7122 supports various network protocols, facilitating seamless integration within existing IT infrastructures. Its stackable design allows for easy scaling, enabling businesses to expand their network as needed without a complete overhaul. The switch also boasts an intuitive user interface, which simplifies management and configuration processes, making it accessible to network administrators of varying skill levels.

The 3Com V7122 stands out for its reliability and durability as well. It is built to handle the demands of an enterprise environment, featuring a compact and robust chassis designed for continuous operation. With the ability to support power over Ethernet (PoE), the switch can power connected devices directly through the Ethernet cable, eliminating the need for separate power supplies and reducing cable clutter.

In conclusion, the 3Com V7122 is a powerful networking solution that combines advanced switching features, traffic management capabilities, and flexible configurations. Its compatibility with various technologies and protocols makes it an ideal choice for organizations looking to optimize their network infrastructure for current and future demands.