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TELE-audiovision International — The World‘s Leading Digital TV Industry Publication

— 01-02/2015

TELE-audiovision.com

loader. We started out with

this right away, since the new

firmware also requires the

latest bootloader version.

• Kernel Upgrade: Choose

this option to update the so-

called kernel, which is the

central unit of the operating

system.

• RootFS Upgrade: The ac-

tual operating system with

all its libraries and additional

files is located in the root file

system, which is installed as

a separate entity outside the

kernel.

• Splash Upgrade: This op-

tion is useful for commercial

distributors of the Deviser

S7000 or for large compa-

nies using many meters – it

allows a customised image to

be shown during the starting

sequence.

As mentioned above, we

began with the CFE Upgrade.

After a few seconds, the De-

viser S7000 switches off auto-

matically, and when it comes

on again you normally would

not notice any changes at all.

Firmware was next. Here,

two means are available to

reach the same end: Either

you call up the update menu

described above by switch-

ing on the Deviser S7000

while at the same time press-

ing the screwdriver button,

or you go for the automatic

firmware update. How does

that work? Well, simply con-

nect a USB storage medium

with the new firmware files to

the meter before switching it

on. When the S7000 powers

up it will automatically detect

the new firmware version and

take care of all the rest. Just

make sure you disconnect the

USB medium once the new

firmware has been installed

properly, otherwise the meter

will always initiate the update

sequence whenever you turn

it on. While this makes sense

and is only logical, it took us

a while to figure out, and we

first were under the impres-

sion that the Deviser S7000

was stuck in an infinite boot

loop…

We were rather surprised to

find out that Deviser does not

put many restrictions on the

way you are allowed to use

the update function, so that

you are entirely free to down-

grade to a lower firmware

version again if you have

any reason to do so. What’s

more, Deviser leaves it up

to the user to decide which

packages should or should

not be installed. To give you

a real-world example, you

could perhaps choose to only

update the firmware of the

CA module and not touch the

rest of the firmware in case

you don’t want to mess with a

perfectly running system.

Once all steps are complet-

ed it’s time to re-start the De-

viser S7000 and have a look

at the configuration menu to

check and verify the version

numbers of all installed com-

ponents. And here it finally is:

the new IPTV option! If you’re

anything like us this will be

the first feature to check out

and the screen that appears

shows the IPTV list right

away. All IPTV servers that

can be detected automatical-

ly are summarised in a neat

chart, complete with source

IP, source port, destination

IP, destination port, data rate

and packet number.

This initial screen alone is

an immensely valuable tool,

since all that is required is a

connected network cable to

find out instantly whether or

not IPTV servers are avail-

able, and if so, which ones.

Deviser S7000 Screenshots

19. As soon as I activated the IPTV streaming on the DekTec DTE-

3137, the Deviser S7000 listed the transmission.

20. Here I activated the transmission of both channels on the

MPEG Encoder – within a second they were listed here as well.

21. This was an older configuration of the IPTV devices in my

network. The Deviser S7000 shows why I couldn’t use them all

simultaneously: I had duplicated destination IPs configured.

22. After sorting out the IPs I now have a proper configuration and

my Gigabit network was providing four different transponders

simultaneously.

23. Different measurements on the IPTV streams fed into our

network: ideal to monitor if everything is going as expected.

I found the indication of the Bit Rate extremely useful, as it is

often difficult to manage this parameter in a satisfactory way.

Technicians at the cable head end will benefit from the Media

Delivery Index (MDI), which allows monitoring the jitter and delay

at the network level. The Deviser S7000 does show the Delay Factor

(DF), as well as the Media Loss Rate (MLR).

24. The TS-Analyser of the Deviser S7000 doesn’t care where the

TS stream comes from. In this case, it actually comes from the

DekTec DTE3137 receiver transmitting the whole transponder over

IPTV.

25. All the usual functionality of the TS-Analyser is available for the

IPTV mode. The only exception I found is that one cannot record

the stream to an attached USB memory.

26. Here is a different IPTV stream being analysed. This one only

contains one single channel.