Your Mouse DOESN’T Move the POINTER/CURSOR

CHAPTER 6: Troubleshooting

6.2.9YOUR MOUSE DOESN’T MOVE THE POINTER/CURSOR

A. What type of mouse is it? If it is any type other than those listed as being supported in item A under Section 6.2.6, chances are that the ServSwitch doesn’t support it.

B. The mouse might not be configured properly.

C. Your mouse must be connected to a powered ServSwitch when the CPUs are booted and when mouse applications are run. Try exiting and re-entering your application; if this doesn’t work, issue the Reset command (see Section 4.3.6).

6.2.10YOUR MONITOR DISPLAY IS FUZZY

A. Check the settings of your monitor, especially the sharpness control.

B. If you can’t solve the problem by changing the monitor settings, you might have run cable too far. No single original Serv cable in your system should be longer than 20 ft. (6.1 m), and the maximum total length of original Serv cable from any CPU to any monitor, keyboard, and mouse is 40 ft. (12.2 m). (If you’re using SVGA or high-res Mac video, even these distances might too far.) No single coaxial cable in your system should be longer than 100 ft. (30.5 m), and this assumes that your CPUs can drive keyboard and mouse signals that far—you might only be able to run 20 ft. (6.1 m).

Bottom line: If you’re running IBM or Mac video over original Serv cable, you might need to upgrade to coaxial cables that carry the video signal better. If you are already using coax cables, you might need to add Station Extenders (our product codes AC253A etc.) or CAT5 KVM Extenders (our product codes ACU9001A etc.); call Black Box for technical support. See Section 4.1.3 and Appendix B.

6.2.11YOUR VIDEO IS NOT SYNCHRONIZED OR IS THE WRONG COLOR

A. If you are trying to use an IBM 9515, 9517, or 9518 monitor, you need special cables to carry the video correctly. Call Black Box for technical support.

B. Check the settings of your monitor, especially the sync or color controls.

C. Your monitor might not be capable of synching to the selected video resolution or frequency (refresh rate). Try a lower resolution or frequency or a more powerful monitor.

D. The CPU is sending video with composite sync and the monitor only accepts horizontal or vertical sync, or vice versa. Change the settings of the CPU or monitor so that the two are compatible. If this is not possible, swap in a different monitor that can handle all of your CPUs’ synchronization types.

SW725A-R4, SW722A-R4, SW723A-R4, KV3108SA-R4, SW724A-R4 specifications

The Black Box SW721A-R4, SW724A-R4, KV3108SA-R4, SW723A-R4, and SW722A-R4 are cutting-edge network switches that cater to the demanding needs of modern data environments. These models are designed to provide high performance, reliability, and advanced features suitable for both enterprise-level deployments and smaller networks.

The SW721A-R4 and SW724A-R4 are primarily layer 2 switches that support essential networking protocols such as IEEE 802.1Q for VLAN tagging, ensuring secure and efficient traffic management. With robust forwarding capabilities, these switches boast high-speed Gigabit Ethernet ports, which enable seamless data transfer and reduce latency in data-driven applications. Their fanless design also ensures quiet operation, making them ideal for office settings and noise-sensitive areas.

Another noteworthy addition is the KV3108SA-R4, a versatile KVM switch that provides remote management capabilities. This model can control multiple servers and computers from a single console, allowing IT personnel to streamline operations and reduce physical space requirements. With support for high-resolution video output and an intuitive user interface, the KV3108SA-R4 enhances usability while maintaining efficiency in server management.

The SW723A-R4 and SW722A-R4 models further enhance network capabilities with their advanced Layer 3 functions. These switches support static routing and dynamic routing protocols, making them suitable for complex networking scenarios. They are equipped with a comprehensive set of security features, including port security and access control lists (ACLs), ensuring that sensitive information is well-protected against unauthorized access.

All of these Black Box models operate on advanced technologies such as QoS (Quality of Service), which helps prioritize critical traffic and ensures optimal performance during peak usage periods. Additionally, they support Power over Ethernet (PoE), enabling the powering of network devices such as IP cameras and VoIP phones without the need for additional electrical outlets.

In summary, the Black Box SW721A-R4, SW724A-R4, KV3108SA-R4, SW723A-R4, and SW722A-R4 represent a fusion of performance, versatility, and security in network infrastructure. These switches are perfect for businesses looking to enhance their connectivity solutions, ensuring that they can meet the demands of an increasingly digital world while maintaining high standards of efficiency and reliability.