APPENDIX A: NVRAM Factory Defaults

Appendix A: NVRAM Factory Defaults

The table below shows, for the ServSwitch Jr. MP’s saveable options, the default values stored in nonvolatile memory (NVRAM) when the Switch is shipped from the factory. It also shows what commands or actions can change these settings for the Switch’s current operating period, as well as what commands or actions can save changed settings to NVRAM, so that they become the new defaults.

Option

Factory-Default

To Change

To Save

 

Setting

 

Changes

 

 

 

 

Caps/Scroll/

Num Lock ON (fixed)

Select port, then press the

Can’t be saved

Num Lock

 

corresponding button on the

 

 

 

keyboard

 

 

 

 

 

Scan

OFF

Type [CTRL] S (to turn ON) or

Can’t be saved

 

 

[CTRL] X (to turn OFF)

 

 

 

 

 

Scan-Delay

5 seconds

Type [CTRL] Txx [ENTER]

[CTRL] K

Time

 

(xx = 1 to 15, time in seconds)

 

 

 

 

 

Maximum

SW627A-R2: Two

Type [CTRL] Px [ENTER]

[CTRL] K

Ports

SW628A-R2: Four

(xxx = 2 or 3)

 

 

 

 

 

Keyboard

Mode 2

Select port, then type [CTRL] Mx

[CTRL] K

Mode

 

(x = 1, 2, or 3)

 

 

 

 

 

Keyboard

43 (delay of 12 second,

Type [CTRL] Axxx [ENTER]

[CTRL] K

Typematic

rate of 10.9 characters

(xxx = 0 to 127; see

 

 

per second)

Section 4.3.11)

 

 

 

 

 

Apple Keyboard

0 (standard 104/105-key

Type [CTRL] Px [ENTER]

[CTRL] K

Emulation

mapping)

(xxx = 0, 1, or 2)

 

 

 

 

 

PS/2 to RS-232

0 (OFF) for each computer

Select port, then type

 

Mouse

 

[CTRL] 1 [ENTER] to turn ON or

[CTRL] K

Translation

 

[CTRL] 0 [ENTER] to turn OFF

 

 

 

 

 

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Black Box SW627A-R2, SW628A-R2 Appendix a Nvram Factory Defaults, Option Factory-Default To Change To Save Setting Changes

SW627A-R2, SW628A-R2 specifications

The Black Box SW627A-R2 and SW628A-R2 are advanced network switches designed to enhance the efficiency and reliability of modern data networks. These switches are ideal for various applications, including data centers, enterprise networks, and industrial settings, providing robust performance and flexibility for a wide range of tasks.

The SW627A-R2 model features 24 Ethernet ports, allowing for seamless connectivity across a broad array of devices. Its 10/100/1000 Mbps auto-sensing capabilities ensure that all connected devices can communicate effectively, making it an excellent choice for businesses looking to maximize their existing infrastructure. The switch is designed with energy efficiency in mind, featuring IEEE 802.3az Energy Efficient Ethernet technology. This integration helps in reducing power consumption and minimizing operational costs without compromising performance.

On the other hand, the SW628A-R2 model takes things a step further by offering 48 ports, accommodating even larger networks with ease. This switch also supports Power over Ethernet (PoE), which allows it to deliver power to connected devices such as IP cameras, VoIP phones, and wireless access points, eliminating the need for additional power sources and simplifying network installation.

Both models support Layer 2 switching and feature advanced forwarding techniques such as store-and-forward and cut-through modes. They also come equipped with a user-friendly interface for easy configuration and management, with options for SNMP monitoring to ensure optimal performance and troubleshooting capabilities.

From a security perspective, both the SW627A-R2 and SW628A-R2 incorporate features such as VLAN support, port security, and access control lists (ACLs). These features help in segmenting network traffic, preventing unauthorized access, and enhancing overall network integrity.

In terms of durability, both switches are designed for robustness, with sturdy enclosures suitable for various environments. The fanless design also ensures silent operation, making them suitable for office settings.

Overall, the Black Box SW627A-R2 and SW628A-R2 network switches are designed to meet the demands of advanced networking environments, providing the necessary features and technologies to facilitate efficient, secure, and scalable operations. Whether for a small business or a large enterprise, these switches provide a reliable backbone for any network infrastructure.