DVTEL 9540 - Performing a Hardware Reset; Activating Quality of Service

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You should take into consideration the following facts regarding firmware update
using the IP network:
 It can be deactivated in the CLI or the web interface.
 Ensure that the IP link is stable before starting the procedure; therefore it is not
recommended to perform it over the Internet.
Performing a Hardware Reset
Performing a hardware reset assigns the factory default settings to the parameters of
the unit (listed in Appendix A on page 26). All user-defined values are therefore lost.
Following a reset, you will need to reprogram the 9540 IP camera (for instance, its IP
address and VSIP port) for proper operation within its network.
To perform a hardware reset:
1. Press and hold the Reset button located on the back panel of the device, until the
system status LED flashes red very rapidly (it can take up to 10 seconds).
2. Hold the button for an additional five seconds, until the LED turns off.
Activating Quality of Service
Quality of Service (QoS) is a set of low-level networking protocols giving higher
priority to more important data flows while ensuring that the less important ones do
not fail. QoS is an essential technology for organizations rolling out a new generation
of network applications such as real-time voice communications and high-quality
video delivery.
The 9540 supports two QoS flavors: Type of Service (ToS) and Differentiated Service
Code Points (DSCP).
For QoS to be taken into account, the network infrastructure equipment (switches and
routers) must support one of these protocols. If any of these devices does not support
QoS, the QoS data will simply be processed as traditional non-QoS data. Furthermore,
all DVTel units on a network must support the same QoS protocol (or no protocols at
all).
You can set a priority flag to three data types coming out of a camera: video, audio,
and control. A QoS-enabled switch (or router) uses this flag to determine how the
current data compares to what is currently going through it.
To set the QoS values, you need to go in the command line interface (CLI) of the
device, then access the Advanced > Quality of Service menu. For the procedure, see
page 29.
Status LED
The system status LED is a bicolor (green-red) LED providing detailed information on the
current state of the system.
Condition Indication
Steady red The device is powering up.
Flashing red (1 sec.
intervals)
The IP address of the device is already
assigned to another device on the network.