[time-nuts] Re: Spectracom 9383 and Software Project
Chris Quayle
syseng at gfsys.co.uk
Tue Sep 12 17:59:56 UTC 2023
On 8/28/23 17:30, Chris Quayle wrote:
>
>
> On 8/26/23 15:06, timenuts at vlh.dk wrote:
>> Hi,
>>
>> I have a 9383 with GPS and OCXO, I did plan to open it up during my
>> vacation
>> in 2 weeks time - to do a backup of the CF-card (and to change root and
>> factory passwords instead of trying to crack those with
>> JohnTheRipper), and
>> to change the battery; I can take a few pictures of the internals of my
>> unit.
>>
>> I don't know if serialnumber, core version, appl version from the
>> system log
>> from last boot can tell you anything about what GPS-module it might be?
>>
>> Jan 1 00:00:01 chronos spectracom: [system] Unit Started.
>> Jan 1 00:00:01 chronos spectracom: [system] Spectracom Corp. Model hs92XX
>> Jan 1 00:00:01 chronos spectracom: [system] Software Version 3.6.7 Date:
>> 10/24/2014
>> Jan 1 00:00:01 chronos spectracom: [system] IRIG Version 9.02
>> Jan 1 00:00:01 chronos spectracom: [system] Serial Port 1 Version 2.03
>> Jan 1 00:00:01 chronos spectracom: [system] Serial Port 2 Version 2.03
>> Jan 1 00:00:01 chronos spectracom: [system] Remote Port 1 Version 2.03
>> Jan 1 00:00:01 chronos spectracom: [system] Remote Port 2 Version 2.03
>> Jan 1 00:00:02 chronos spectracom: [system] GPS Serial Number: 81408569
>> 06/14/2010
>> Jan 1 00:00:02 chronos spectracom: [system] GPS Appl Version: 1.20
>> 04/21/2010
>> Jan 1 00:00:02 chronos spectracom: [system] GPS Core Version: 1.26
>> 04/21/2010
>> Jan 1 00:00:02 chronos spectracom: [system] GPS Serial Number: 81408569
>> 06/14/2010
>> Jan 1 00:00:04 chronos spectracom: [system] GPS Startup or Reset
>> Jan 1 00:00:09 chronos spectracom: [system] Clock time source changed
>> to GPS
>> Jan 1 00:03:12 chronos spectracom: [system] Clock entering sync.
>>
>>
>>
>> Regards,
>> Kim Sindalsen
>>
>
> Hi Kim,
>
> Thanks for that. I did a bit more work over the weekend. Made a dd
> image of the cf card, then wrote another from that, to verify that
> it was working. Although the original card says 256mb, a copy runs
> out of space, so used a 512mb card, which works fine.
>
> Have an old laptop running Suse 11.4, which has an excellent disk
> utility. Using that, had a look at the card contents. Turns
> out to be running Vile Linux 2.5, with the file system EXT3, all
> on a single partition. Using chroot, changed the root password,
> and using the onboard video and keyboard, was able to log in as
> root, then have a look at what else is in the system.et me know if
> you need copies of the original and unrooted images. Tried, but
> too large to send as an attachment.
>
> What I really need is to find out the vendor and model number
> of the GPS module, so some closeup photos would help. The
> module is plugin under 4 screws, so if possible, a photo of
> the underside would help as well. Mine has the cheapest tcxo
> oscillator, not good for a test gear reference, so if yours
> is a higher spec, a photo and part number would help.
> There are several oscillator footprints on the m/b and should
> be easy to replace the existing unit, providing a compatable
> replacement can be found...
>
> Regards,
>
> Chris
>
>
>
Hi Kim,
Thought you might be interested in an update on the 9383. Here are
the notes to date, after a bit of digging. Basically working, but
needs the better oscillator to improve the time offset and
frequency stability.
Regards,
Chris
>
> Symmetricom Netclock/IRIG 9383. Modify for GPS Input
> ----------------------------------------------------
>
> Chris Quayle, Started: 03-September 2023
> ----------------------------------------
>
> * Replace IRIG card with Trimble Resolution T gps module
> (See below)
>
> * Firmware is on 256 Mb CF card, Vile Linux 2.6.15 Ext3
>
> * Card into laptop, Suse Linux 11.4 here
>
> * image the card
> "dd if=... of=9383.img bs=1m"
> * Mount on /mnt
> * chroot to /mnt, to reset root password
> * Rewite edited image using dd to 512mb card, as
> original is slightly greater than 256mb. Verify
> it still boots and reaches login prompt.
>
> * Reboot system, login as root via internal
> keyboard and vga port
> * In /etc/ssh/sshd_config
> PermitRootLogin yes
> * Reboot, login as root from remote, "ssh root at 192.9.200.170"
> * Dig around the system, (no 'more' on this box :(, then:
>
> * cd /etc/ntp
> * cat ntp.conf, looks ok
> restrict 127.0.0.1
> restrict -4 default noquery nomodify
> restrict -6 default noquery nomodify
> keys /etc/ntp/keys/ntp.keys
> controlkey 65533
> requestkey 65534
> trustedkey 65533 65534
> server 127.127.1.0 # Undisciplined Clock (LOCAL)
> fudge 127.127.1.0 stratum 15
> enable pps
> server 127.127.45.0 prefer # Spectracom TSYNC PCI
> server 127.127.22.0 minpoll 4 maxpoll 4 # PPS Clock Discipline
> fudge 127.127.22.0 stratum 0
> keysdir /etc/ntp/keys/
> driftfile /etc/ntp/ntp.drift
> logfile /opt/log/ntp.log
> statsdir /opt/log/ntpstats/
> statistics loopstats peerstats clockstats
> filegen loopstats file loopstats type day enable
> filegen peerstats file peerstats type day enable
> filegen clockstats file clockstats type day enable
>
> * login to command line interface
> cd /opt/usr/bin
> cli
>
> Welcome to the Spectracom Command Line Interface
> (c)Copyright Spectracom Corporation 2006
>
> * root at 192.9.200.170 > help
> Command line interface (CLI) help.
> Type 'help cmd' for a detailed help on the 'cmd' command.
> The following are the available commands.
> time - time
> reboot - reboot
> halt - halt
> log - log COMMAND OBJECT [ HANDLE ]
> option - option COMMAND [OPTION | PRODUCT] [VALUE]
> ltc - ltc COMMAND [INDEX | NAME] [...]
> clean - clean [restart | halt]
> net - net COMMAND [Arguments]
> disc - disc COMMAND ARG
> sys - sys COMMAND [Arguments]
> photo - photo COMMAND [Arguments]
> ser - ser COMMAND SERIAL [Arguments]
> rem - rem COMMAND REMOTE [Arguments]
> sernum - sernum COMMAND
> irig - irig COMMAND ARG
> show - show [on | off]
> frq - frq COMMAND INDEX [Arguments]
>
> * root at 192.9.200.170 > option display
> Product Name: 9383
>
> Security : on
> Modem : off
> Serial Port 1 : on
> Serial Port 2 : on
> Remote Port 1 : on
> Remote Port 2 : on
> IRIG Output : on
> Front Panel Display : on
> Relays : on
> Oscillator Disciplining: on
> 10 MHz Frequency Output: on
> IRIG Input : on
> Oscillator : TCXO
> Gps Receiver : NONE
> Board : NONE
>
> * Try setting defaults ???
>
> * root at 192.9.200.170 > option default
> Default options restored for: 9383
>
> * root at 192.9.200.170 > option display
> Product Name: 9383
>
> Security : on
> Modem : off
> Serial Port 1 : on
> Serial Port 2 : on
> Remote Port 1 : on
> Remote Port 2 : on
> IRIG Output : on
> Front Panel Display : on
> Relays : on
> Oscillator Disciplining: on
> 10 MHz Frequency Output: on
> IRIG Input : off
> Oscillator : TCXO
> Gps Receiver : Trimble Resolution T
> Board : NONE
>
> * GPS Modules
>
> Dump the application: od -S 5 usr/bin/hs92XX
> looking for gps module references, we get:
>
> Motorola Oncore M12+ Timing
> Motorola M12M Timing
> Motorola M12M Navigation
> Trimble Resolution T
> Trimble Force-22 SAASM
>
> So, looks like quite a choice.
>
> Had originally thought that the IRIG and GPS types might
> need a different firmware load, but there were entries
> early on in log files which suggested an initial default
> to a gps install, with IRIG being an option set at build
> time. Anyway was able to identify the GPS module in use
> from your pics, Found one online. All seems to work,
> with reasonable timing accuracy. Would think that would
> improve with a more stable reference oscillator, but
> good enough for noe.
>
> A useful addition to the time & frequency collection...
>
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