Maintenance and Inspections | 3Com VFD-D D specs

Chapter 6 Fault Codes and Descriptions DD Series

6.2 Maintenance and Inspections

Before the check-up, always turn off the AC input power and remove the cover. Wait at least 10 minutes after all display lamps have gone out, and then confirm that the capacitors have fully discharged by measuring the voltage between DC+ and DC-. The voltage between DC+ and DC-should be less than 25VDC.

Ambient environment
		Maintenance
Check Items	Methods and Criterion		Period
Check Items	Methods and Criterion	Daily	Half	One
			Half	One
			Year	Year

Check the ambient temperature,	Visual inspection and measurement with
humidity, vibration and see if there	Visual inspection and measurement with	{
humidity, vibration and see if there	equipment with standard specification	{
are any dust, gas, oil or water drops	equipment with standard specification

If there are any dangerous objects	Visual inspection	{

Voltage
		Maintenance
Check Items	Methods and Criterion		Period
Check Items	Methods and Criterion	Daily	Half	One
			Half	One
			Year	Year

Check if the voltage of main circuit	Measure with multimeter with standard	{
and control circuit is correct	specification	{
and control circuit is correct	specification

Keypad
		Maintenance
Check Items	Methods and Criterion		Period
Check Items	Methods and Criterion	Daily	Half	One
			Half	One
			Year	Year

Is the display clear for reading	Visual inspection	{

Any missing characters	Visual inspection	{

Mechanical parts
		Maintenance
Check Items	Methods and Criterion		Period
Check Items	Methods and Criterion	Daily	Half	One
			Half	One
			Year	Year

If there is any abnormal sound or	Visual and aural inspection		{
vibration	Visual and aural inspection		{
vibration

6-7

VFD-D D specifications

The 3Com VFD-D D is an advanced networking solution designed to meet the demands of modern communication and connectivity. As part of 3Com's extensive portfolio of networking products, this device stands out due to its robust features, innovative technologies, and characteristics that cater to various enterprise environments.

One of the main features of the 3Com VFD-D D is its high-speed data processing capability. Operating at speeds that comfortably support high-bandwidth applications, the device is equipped to handle a multitude of simultaneous connections without compromising performance. This makes it an ideal choice for businesses where consistent, fast access to data is critical.

In terms of connectivity options, the VFD-D D supports a variety of protocols, allowing it to seamlessly integrate with existing infrastructure. Whether through Ethernet, Fiber Channel, or wireless technologies, the device offers versatility in connecting diverse network configurations. This adaptability ensures that organizations can optimize their network setups according to their specific requirements.

The 3Com VFD-D D also boasts advanced security features designed to protect sensitive data from potential threats. With built-in encryption protocols and secure access measures, the device safeguards information while offering administrators full control over user permissions. This heightened security is especially important in today's risk-laden digital landscape, providing peace of mind for organizations entrusting their data to the network.

Moreover, the VFD-D D is designed with scalability in mind. Its modular architecture allows businesses to expand their network capabilities as needed, ensuring that the device can grow alongside their evolving requirements. This flexibility helps organizations manage costs effectively while preparing for future technological advancements.

Another characteristic that sets the 3Com VFD-D D apart is its user-friendly management interface. Administration tasks can be performed quickly and intuitively, reducing the burden on IT staff while enabling efficient network monitoring and troubleshooting. With real-time analytics and reporting capabilities, organizations can gain valuable insights into their network's performance.

Overall, the 3Com VFD-D D combines speed, security, and scalability in a single device, making it a powerful addition to any enterprise network. Its advanced features and technologies are tailored to support the dynamic needs of modern businesses, ensuring reliable performance and robust connectivity in an increasingly interconnected world.

3Com VFD-D D manual Maintenance and Inspections, Check Items Methods and Criterion Period

Models: VFD-D D

Chapter 6 Fault Codes and Descriptions DD Series

6.2 Maintenance and Inspections

Check Items

Methods and Criterion

Period

VFD-D D specifications