CHAPTER 4: Operation: Hardware and Keyboard Commands

4.3.6RESET

This command, along with the commands described in the next two sections, can come in handy when certain problems arise. It will reboot your keyboard and mouse without your having to power down the station or the system, and will also re-enable PS/2 mouse communication if the selected CPU has previously disabled it. (With current PCs and operating systems, this command shouldn’t be necessary, but older CPUs running DOS or Windows might need it from time to time.) Issue this command if (a) your keyboard gets stuck or begins behaving oddly, (b) you need to send mouse data to the CPU, but it hasn’t enabled the mouse (this can happen if you boot up the CPU while the ServSwitch is off or disconnected), or

(c)while using a PS/2 type mouse, you unplug it, plug it back in, then have problems. To issue the Reset command, press and release the left [Ctrl] key, then type [R].

If you’re using a PS/2 type mouse with a DOS or Windows 3.x CPU, don’t issue this command if the CPU doesn’t have a mouse driver loaded—many such CPUs will crash if you send them unexpected mouse data. (CPUs running UNIX or Windows 95, 98, or NT don’t have this problem.) If your shared CPU is like this, and you have chronic problems when you try to run applications that don’t use the mouse but don’t disable the mouse either, take these precautions:

•If you never actually use the mouse with the CPU (as would probably be the case if, for example, the CPU were a Novell® NetWare® file server), either don’t plug the mouse strand of the CPU Adapter Cable into the CPU’s mouse port, or don’t load a mouse driver at all. If you do use the mouse, are running Windows 3.x, and sometimes exit to DOS, make sure you load a DOS mouse driver before running Windows.

•If you’ve loaded a DOS mouse driver and are going to use an application such as NetWare that disables the PS/2 mouse, first REM out any statements in your startup files (AUTOEXEC.BAT, etc.) that load the mouse driver, then reboot the computer to remove the mouse driver from memory. (Having the mouse driver unload itself doesn’t do the job.)

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Black Box SW723A-R4, SW722A-R4, KV3108SA-R4, SW721A-R4, SW724A-R4, SW725A-R4 manual Reset
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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.

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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.
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