Omniswitch 6800-48 No Boot

[filewalker]

Hello Community,

I am new to this Forum and first of all, please excause me for my bad englisch!

I have same Alcatel Omniswitch 6800-48s here with me, but they won´t work at all.
If i power them up, they are running und displaying a "0" on the small display, but al LEDs are off. I can´t get a connection via ethernet nor via terminal.
This is not normal, isn´t it? I don´t have original console cable, but i built my own one using this pinout from http://4.bp.blogspot.com/_Fduwa95b3Ac/T ... onsole.jpg

It is said to be used for 6850, but i could not find one especially for 6800-48, so i hoped that one would work. Or do I need another pinout?

It woult be very nice to get help!


Best reegards

[one6f]

Hi,

Slot Indicator LED displays 0 when the switch is booting.
Consult OS-6800 Hardware Users Guide for details.

Regarding Console pin-out connections compare with DB-9 to RJ45 by Cedric or Pin Out diagram for DB-9 connector to use with AOS or any HW user guide, search for pinout (console port pinouts).

[filewalker]

Thank you for your fast response!

I already found this informaion, that the "0" is showig, that the unit is booting, but i let it go for 5min. and nothing changed so far.

I have also found this pinot, you mentioned, but i was not able to "read" that. I did not get the point with inside view, outside connector and the wireing. RJ45 Connectors have 8lines in a row, in this picture they have two rows of 4 lines.
In the hardware user guide, the pinout is very strange. It says:

1 NC
2 NC
3 RXD
4 GND
5 GND
6 TXD
7 NC
8 NC

But for terminal connection you need more than just rxd und txd. even if they mean 3-->RXD+ 4-->RXD-,... this woult be strange, wouldn´t it?

Thanks for helping me!

[justinf4]

I'm having the same issue. I'm using the connector provided and was able to connect just fine. Was in the process of upgrading the switch and did a reload working no rollback-timeout and now the switch freezes before anything shows on the screen.

[one6f]

Try this techtip: 6800 does not boot completely after power outage

[one6f]

To clarify console adapter questions:

See also attached photos in archive.

[filewalker]

Thank you very much for your help.
My problem was, that i did not have this adaptor. So i tried to build my own using an rj45 patchcord, cutting one socket und soldering an db9 socket. But i had problems to identify the positions of the cables in the rj45 connector.
Your pictures were very helpfull!

Now i build my own "serial Cable":

RJ45
1 orange/white
2 orange
3 green/white
4 blue
5 blue/white
6 green
7 brown/white
8 brown

and connected them to DB 9 connector:
1 NU
2 brown/white
3 orange
4 blue/white
5 green
6 blue
7 orange/white
8 brown
9 NU

I connected the cable direct to PC Serial Port and RJ45 Console Port of Omnistack6800. I started TerraTerm using ComPort Settings Baud 9600 Data 8bit Parity none Stop 1bit Flow Controle none.
When powering up the Switch I get NO! console output. Are the Settings correct? Is my Cable Pinout ok? Or do i need to cross 2 lines (rxd/txd)? What is wronge there? I have 3 of these switches here and they all show the same. I dont think, that they are all dead...

Thank you for your help. Would be nice to hear from you soon.

[one6f]

Somewhere is wrong.
DB9->color->RJ45
1 NU -
2 brown/white 6
3 orange 3
4 blue/white 2
5 green 4
6 blue 7
7 orange/white 1
8 brown 8
9 NU -

If you have a cisco adapter compare with:

Code: Select all

   DB-9   |   RJ-45 Cisco   |   RJ-45 Alcatel
_____________________________________________
    1               0                0
    2               3                6
    3               6                3
    4               7                2
    5               4                4
    6               2                7
    7               8                1
    8               1                8
    9               0                0

So if you have a Cisco adapter try simply to change 3-6, 2-7, 1-8
May be try other baud rates, since 9600 is default, but could been modified earlier.

[filewalker]

Thank you so much! I thought the RJ45 Pins or numberd in this way:
8 7 6 5
4 3 2 1

But they ar number this way, if i get it wright now:

8 6 4 2
7 5 3 1

I´ll change my Cable Pinout and will post the results than.

Best reegards

[filewalker]

I have made a new cable with the right pinout. (i hope so)

i chekd every thing dupble, but i get no console output! I use terraterm with vt100 emulation and tried different baud rates.
What do i wrong? Is there a jumper inside the unit, to reset it, or something to solve my problem?


Thank you all for your help!