Chapter 2: Overview
2.3 Hardware Description
Figure 2-1 illustrates the ServSensor’s front panel. Table 2-1 describes its components.
2.3.1 Front Panel
3 | 4 | 6 | 7 |
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1 | 2 | 5 |
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| Figure |
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| Table |
Number | Component |
| Description |
1 | Power LED |
| When the unit is powered on, the power LED will be lit continuously. If the |
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| power LED is flashing, there is a problem with the CPU. Contact Technical |
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| Support at |
2 | Link LED |
| The Link LED indicates network connectivity. It lights when a network is |
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| connected to the ServSensor V4E Lite. |
3 | Mic |
| The mic is a small hole for access to the internal microphone. Use it as a |
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| sound sensor (or use an external mic). |
4 | SD card slot |
| SD card (not included) installs here. |
5 | Activity LED |
| The Activity LED flashes when network traffic is sent to or received by the |
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| ServSensor V4E Lite. |
6 | Status/Online LEDs | The Status/Online LEDs are numbered | |
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| status of the sensors connected to each port. You can also use these LEDs to |
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| indicate system status during various operations. |
Additionally, the LEDs can indicate the progress of an upgrade. The red LEDs move from left to right to indicate activity, and all the green LEDs indicate overall progress of the upgrade. When all the red lights are off and the green are on, the upgrade/recovery process is complete.
These lights also indicate if the unit is operating in safe mode. This is when the unit loads the operating system (OS) with a minimal set of drivers. If your device enters safe mode after rebooting, contact Black Box Technical Support at
The unit may enter recovery mode if a firmware upgrade is incomplete. In this case, the unit displays a continuously lit row of red LEDs. If this happens, contact Black Box Technical Support at
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