Table 7.

Status indicators

 

 

Indicator

Meaning

 

1

Speaker mute

Orange:

The speaker is on mute. To set the

 

 

 

 

 

speakers on mute or unmute, press the

 

 

 

speaker mute button.

2

Microphone mute

Orange:

The microphone is on mute. None of the

 

 

 

 

 

recording devices is available while the

 

 

 

microphone mute is on by default.

3

Wireless LAN,

Green:

The wireless LAN feature (the IEEE

 

Wireless WAN, or

 

 

802.11 b/g standard, 802.11 a/b/g,

 

WiMAX status

 

 

 

or 802.11n), wireless WAN feature, or

 

 

 

 

 

 

WiMax feature is on, and the radio link

 

 

 

is ready for use.

 

 

Blinking green:

Data is being transmitted.

4

Bluetooth wireless

Green:

The Bluetooth wireless feature is on, and

 

status

 

 

the radio link is ready for use.

 

 

 

 

R

Blinking green:

Data is being transmitted.

 

 

5

Device access

Green:

Data is being read from or written to the

 

 

 

 

 

hard disk drive, the diskette drive, or the

 

 

 

drive in the Serial Ultrabay Enhanced

 

 

 

device. When this indicator is on, do not

 

 

 

put the computer into sleep (standby)

 

 

 

mode or turn off the computer.

 

 

Note: Do not move the system while the green device access light is on. Sudden

 

 

physical shock could cause drive errors.

 

6

Power on

Green:

The computer is on and ready to use.

 

 

 

 

 

This indicator stays lit around the

 

 

 

power-on button whenever the computer

 

 

 

is on and is not in sleep (standby) mode.

7

Serial Ultrabay

Green:

A Serial Ultrabay Enhanced device is

 

Enhanced device

 

 

installed and in use.

 

status

 

 

Blinking green:

A Serial Ultrabay Enhanced device is in

 

 

 

 

 

the process of being detached.

 

 

Turn off:

A Serial Ultrabay Enhanced device is

 

 

 

ready to be attached or detached.

8

Fingerprint reader

Green:

The fingerprint reader is ready to swipe.

 

status

 

 

 

 

 

Blinking green:

The fingerprint is being authenticated or

 

 

 

has been authenticated.

 

 

Blinking orange:

The fingerprint could not be

 

 

 

authenticated.

48ThinkPad T520, T520i, and W520 Hardware Maintenance Manual

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Lenovo 4284WW9PC10B371, W520, T520i manual Indicator Meaning

T520, W520, 4284WW9PC10B371, T520i specifications

The Lenovo T520i is a robust business laptop that caters to professionals seeking reliability and performance. Part of Lenovo's ThinkPad series, specifically the model number 4284WW9PC10B371, it is designed for multitasking efficiency and mobility.

One of the defining features of the T520i is its impressive performance capabilities. It is equipped with Intel's second-generation Core processors, ranging from i5 to i7, which provide ample power for demanding applications and multitasking scenarios. This model supports up to 16GB of RAM, ensuring smooth operation even with multiple applications running simultaneously.

The T520i features a 15.6-inch high-definition display, offering users a resolution of 1366 x 768 pixels. For those who require superior screen clarity and vibrant color reproduction, the laptop can be upgraded to a Full HD (1920 x 1080) display option. This attribute is especially valuable for professionals working in design or media fields who need precise visuals.

Another characteristic that sets the T520i apart is its durable build quality. As a ThinkPad, it has undergone rigorous testing to meet military-grade standards for durability and reliability. The spill-resistant keyboard and robust chassis are designed to withstand the rigors of everyday use, making it ideal for professionals on the go.

Storage options for the T520i are versatile, with configurations available for traditional hard drives and solid-state drives (SSD). The SSD option not only enhances the overall speed of the system but also improves boot times and application loading, significantly contributing to productivity.

Connectivity options on the T520i are comprehensive. It comes with multiple USB ports, including USB 3.0 for fast data transfer. Additionally, integrated features such as a Gigabit Ethernet port, VGA output for external monitors, and optional 4G LTE connectivity ensure seamless communication and access to networks.

The laptop also boasts Intel HD Graphics, offering sufficient power for everyday tasks, video playback, and light gaming. Furthermore, the inclusion of technologies such as Bluetooth and an integrated webcam enriches user experience through enhanced connectivity and multimedia capabilities.

In conclusion, the Lenovo T520i, with its powerful processors, impressive display options, and rugged design, is a capable choice for professionals who require a reliable, high-performance laptop. Ideal for both business and personal use, it exemplifies Lenovo’s commitment to quality and innovation in the laptop market.