Re: [time-nuts] Minicircuits 10% discount in December
you can try the following vendor (RF Elettronica): http://www.rf-microwave.com/en/shop.html They ship abroad and prices are rather good. _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT Gel Cell question
In my previous work I was developing UPSs: I can confirm that in the last years the quality of the typical gel batteries has declined. What once was 7Ah batteries now are sold as 9Ah ones! And 5-6Ah ones are sold as 7Ah... :( One of the best way to identify the quality of sealed batteries is to weigh them: the heaviest have the highest capacity (and in general are also the best because the producer didn't spare on materials). _ Elio Corbolante. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] temperature sensor
May I suggest thermistors and other temperature sensors made by Omega? http://www.omega.com/pptst/44000_THERMIS_ELEMENTS.html Their range of products is really large and prices are not too bad: http://www.omega.com/temperature/tsc.html take a look also to their literature: http://www.omega.com/techref/ _ Elio Corbolante. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A Schematics and scans
Thanks to Ignacio (EB4APL) and the generosity of Mike Harrison, today I received a PCB of a disassembled FE5680A. I provided to make some scans of the board at 2400DPI resolution: the picture size is about 7700x11500 pixel (9MB) Top face (with and without ICs): http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_Top001.jpg http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_Top001_noIC.jpg Bottom face (with and without ICs): http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_Bottom001.jpg http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_Bottom001_noIC.jpg Being able to remove the ICs, I was able to correct some flaws in the previous schematics: http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_schematics_v0.2.pdf During the next week I will continue to write down the logical part of the circuit and I hope will be able to dump the 8032 firmware _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Schematic capture, anyone?
DesignSpark PCB: http://www.designspark.com/knowledge/pcb Being free and having no limitations like Eagle, I think you can try it... ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A firmware dump
From: Mike McCauley I've been considering ripping the firmware from the mcu as well. I've not got beyond the consideration stages, but i have all the equipment here at work. When you say that the read option is not available. is this because the chip has protection fuses enabled? Id like to help with the disassembly if you can get the binary dump. Don't worry: when I will be able to dump the firmware I will let it on the public domain. BTW, I have the opportunity to use the IDA disassembler (a friend of mine is a licensed user) so I think the disassembly of the code will be rather good. Any knowledge of a public domain 8051 disassembler which can rival IDA in performance/code analysis? _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] (no subject)
Azelio Boriani wrote: In my opinion you don't need the power of an IDA-class disassembler to process an 8051-like code. The MCS51 family processors have only 128 or 256 bytes of RAM (and at most 64K ROM) and cannot host complex code. From your answer I infer you have never thoroughly used IDA and its really powerful disassembler engine... _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A firmware dump
From: Chris Albertson albertson.ch...@gmail.com Email some of the sellers in China and offer to buy a returned unit. they must have some On Mon, Feb 13, 2012 at 5:55 PM, EB4APL eb4...@cembreros.jazztel.es wrote: I don't mind sending something like $5 to a buy group and we'll have enough with a few of us. But if I were Elio I'll not feel very happy using a working unit for this kind of use, This is the answer I got from 'nichegeek': We do would like to help but sorry that what we got from supplier is good items although it is secondhand products. I will buy one working unit just to be dissectioned. _Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A Schematics (v0.1)
at the following address: http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_schematics_v0.1.pdf you will find the 0.1 release of the FE-5680A schematics. New additions: - pinout of the unpopulated (24 pin) connector (J9) behind the DB9 - connections between CPU/MAX3232 and the *TWO* serial ports!!! - component values of the 10MHz filter + option on PCB to output a square 10MHz wave on DB9 - connections between CPU and MAX1246 (A/D converter) - connections between XC9572 and MAX392 (quad analog switch) - unknown pins marked as '?' As you can see, it seems FE-5680A fully supports 2 serial ports: one on DB9 and the other one on the unpopulated connector (J9) behind DB9. Any comments/suggestions are welcome. . ciao _Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A partial schematics (digital only)
Being not yet able to dump the FE-5680A firmware, I started to write down the DIGITAL part of the schematics: http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_schematics_v0.0.pdf I hope it can be useful to some of you. (any suggestion is welcome!) - - - - - - with this email I renew my request: is there someone who want to sell me a *non working* FE-5680A so I will be able to complete my reverse engineering of the device without destroying a good one? _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A firmware dump
Unfortunately my programmer is only able to erase/program/verify the PSD chip. The read option is not available! :-( To dump the firmware I need to desolder the chip and prepare a dedicated testbed: before doing this on a working FE-5680A, is there anyone of you who want to sell me a *nonworking* unit (better if it is a nonlocking one)? _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A firmware dump
From: Steve . iteratio...@gmail.com I've been considering ripping the firmware from the mcu as well. I've not got beyond the consideration stages, but i have all the equipment here at work. When you say that the read option is not available. is this because the chip has protection fuses enabled? Also, what programmer do you have, Here at work I have a galep-5 which AFAIK can read both the mcu and cpld/fgpa/pga, whatever it is (provided they are not locked, or the state machine encrypted) My programmer is a MQP Pin-Master 48 http://www.mqp.com/pm48.htm which directly support the PSD chip via JTAG (JAM STAPL files). According to this document: http://www.mqp.com/pdf/apnotes/30201.pdf the programmer does not support auxiliary functions like reading the device, but only erase/program/verify. The official programmer/software (FlashLINK/PSDsoft Express) http://www.st.com/internet/com/SOFTWARE_RESOURCES/TOOL/CONFIGURATION_UTILITY/um0050.zip permits to dump the content of the PSD in an .obj file, but at this date I have not this programmer and I have to build it http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/CD4566.pdf :-( If you are able to dump the software using your Galep 5, you are welcome!!! :-) Otherwise my two options will be: 1) to build a FlashLINK clone, hoping the PSD contents are not protected: according to this document http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/CD4566.pdf (Pag. 17) the protection flag can't be enabled using the JTAG interface... 2) to remove the PSD chip and read its contents using a different microprocessor (this will work for certain) _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE-5680A programming connector pinout
I modified my previous pinout image adding some more info (thanks to John and Rex for their suggestions): you can find them at the following addresses: JPG format (1.4MB): http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_annotated_001.jpg Editable Adobe photoshop format (40MB): http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_annotated_001.psd Whole PCB, bottom view (4.2MB) at 1200dpi resolution (3878x5853px): http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_BottomView.jpg If needed, I can put higher resolution images of the PCB: I will try to prepare a picture of the other side of the PCB, but I have to check if I am able to disassemble the FE-5680A PCB without any damage... Let me know if you need them. I would like to have a dead FE-5680A to strip its main components and getting a more detailed view of the connections between the logical parts (CPU/Memory/CPLD). Any offers? - - - - - - - Other findings: the connection between the CPU (*DS80C323END*) and the external memory chip (*PSD813F1V-20UI) is exactly the one described on Figure 23 at page 47 in the PSD datasheet http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00024482.pdf . _ Elio Corbolante. * ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5680A programming connector pinout
The 15 pin connector (near crystal oscillator) is used for JTAG programming the XC8572XL (XC) and the PSD813F1V (PSD). According to my analysis the pinout is the following: 1) Vcc/+5V - goes to pin 5 of MAX882 voltage regulator: its 3.3V output powers XC and PSD 2) Ground (GND) 3) PSD pin PC6 (JTAG-TDO) 4) PSD pin PC5 (JTAG-TDI) 5) PSD pin PC4 (JTAG-/TERR) [on datasheet erroneously shown connected to Vcc] 6) PSD pin PC3 (JTAG-/TSTAT) 7) PSD pin PC1 (JTAG-TCK) 8) PSD pin PC0 (JTAG-TMS) 9) no known connection 10) no known connection 11) XC pin 30 (JTAG-TCK) 12) XC pin 28 (JTAG-TDI) 13) XC pin 53 (JTAG-TDO) 14) XC pin 29 (JTAG-TMS) 15) no known connection I think the +5V on pin 1 should be enough to program the two chips without requiring any power on the DB9 connector. My MQP Pin-Master 48 programmer SHOULD be able (via JTAG) to read the FLASH/EEPROM contents of the PSD813F1V: during the weekend I will try to dump the firmware of the FE-5680A. If the PSD chip is JTAG read protected I will have to desolder it and try to read its contents directly accessing Address/Data lines. at the following address you will find a (rather big) annotated picture regarding the connector pinout: http://www.rhodiatoce.com/pics/time-nuts/FE-5680A_annotated.jpg http://www.rhodiatoce.com/pics/time-nuts/FE-5680A_annotated.jpg _ Elio Corbolante. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] EF-5680A Breakout board (Attila Kinali)
From: Attila Kinali att...@kinali.ch That highly depends on the specs of the PCB and the production size. Guestimating it's a 2.5x10cm, dual sided PCB and using PCB-pools online calculator, i get below 12EUR (~15AUD) per piece at a production size of 15. For small quantities I use PCBCART (http://www.pcbcart.com)... They work very well and the price is right: please take care they ask for tooling costs on the first order (not added on the subsequent orders). They have a price calculator on their web site (20 pieces 25x100mm = 2.29 euros/ea + one time tooling) _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] 10MHz to 80MHz frequency multiplier suggestions
I'd like to convert the 10MHz output of a Thunderbolt to 80MHz: it should be used as a 3.3V clock for an A/D converter. Even if I have already taken a look to documentation from KO4BB and Wenzel regarding frequency multiplier, I'm asking if you have some more references or even better, some schematics of a working 8x multiplier. . thanks in advance _Elio Corbolante. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] 10MHz to 80MHz frequency multiplier suggestions
Rick Karlquist wrote: You will be much happier with three doublers in cascade. Try copying the HP8662 doublers as an example. We also did this in the HP5071 (no I don't have schematics handy at this time). I searched for the 8662/3 schematics, but I only found low resolution PDFs. Even for the 5071A I found a service manual (assembly) but it does not contain detailed schematics: Is there a kind soul among you, who have one of the required schematics? _ Elio. P.S. BTW, I exactly do not know the characteristics (phase noise) of the original XTAL oscillator installed on Perseus, so I can't give more details on my real requirements ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Frequency counter recommendation
From: Chris Albertson albertson.ch...@gmail.com Yes. It can if done wrong. The correct way to use USB is to make your USB device class compliant for some class. Then most OSes (and with recent releases even MS Windows) will have built-in drivers for each class of USB device. Never buy or design a USB device that requires the user to instal device drivers. The worlds has enough poorly designed USB devices that only have drivers for old versions of Windows. We don't need more of those You are right: if correctly developed an USB device can not require any driver at all to work. I'm an HW/FW developer and I have done it for several years. Luckily today almost any OS (Windows/OS X/Linux) supports the most part of the typical USB classes (like Mass Storage/network/CDC(serial)/...) Still. If I were designing a counter I'd just have to talk to a local bus using SPI, 2 wire, I2C or whatever and then have a secon module that converts whatever to USB, rs232, or just a pannel with nixi tubes and toggle switches If my project is not money constrained, I prefer to split my device in 2 parts: - the hardcore one which require to be fast and precise (maybe using an FPGA/Pictic/...) - the user interface which manage the display/communications/user interaction/... On the first one I have not so a great experience (I'm not a so great time-nut!), on the second part maybe I have some more. Just as an example, selecting an ARM Cortex M3 core (price: about 10-15USD/piece), one can very easily have the following interfaces in one single chip (512kB Flash / 64kB RAM) 1) 1xUSB port and/or 1xUSB Host/OTG 2) up to 6 serial ports (RS232/iRDA) 3) Ethernet interface 4) SD card interface 5) CAN interface 6) several SPI and I2C interfaces 7) integrated 12bit A/D and D/A 8) good DMA implementation 9) ... note to previous points: 1) on most of the ARM devices, there can be 1 o more USB interfaces: they can be set as device or host/OTG, so they can support even USB memory stick 1a) if your USB device is CDC compliant, it can be seen as a fast serial interface by almost any OS: no need of cumbersome USB/serial adapters... 2) there are at least 4/6 serial ports in every chip: I think they can be enough for the typical usage... 3) You can put your SMALL web server on your interface 6) in general they have 2 or 3 SPI interfaces and 1 or 2 I2C interfaces. Even I2S, so you can drive your HiRes DAC 8) almost any peripheral (even standard I/O) can be driven by DMA, thus offloading the CPU from the burden of moving data. - - - - - - Just as an example, in my spare time I'm trying to port the great Lady Heather to the mini STM32: http://www.micro4you.com/store/Mini-STM32-STM32F103-TFT-LCD-Board/prod_129.html so my thunderbolts will not be more depending on an always turned-on PC. The firmware will poll the Thunderbolt(s) and will store the log on a SD card. The color touch screen display (320x240) will permit me to show the most interesting data and interact with them without using any keyboard/push button. The price of this device was not very steep: I bought it for about 20 Euros (on TaoBao). It only requires a +5V power supply, but I have already the thunderbolt power supply, so... There are some similar HW which have more I/Os and capabilities (touch screen/network/...) which cost not much more and can do LOTS of of things (just to start I will suggest you something like the LPCXpresso LPC1768 board). The development tools can be get for FREE (GCC) and there are LOTS of ready made libraries (from the chip makers) which will ease the FW development. .best regards _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Frequency counter recommendation
From: Mark Sims: A much simpler solution is to dedicate a $20 obsolete laptop to the Tbolt. I use a 200 MHz Compaq Armada with 1024x768 screen. I have also run Heather on a 90 MHz Fujitsu Milan with a 640x480 passive matrix screen. For bonus points, tap off the internal laptop CDROM power connections (and possibly an internal -12V line) and power the Tbolt from that (you may want to filter the wazoo out of it). Voila, battery backed up Tbolt. I know of one person who has an ancient, steam powered laptop that had enough room inside it to mount the Tbolt circuit board totally inside the machine. To me there are several reasons to not use an obsolete laptop... among them: 1) it requires enough space to be considered annoying 2) I have already too much cables around 3) It draws at least 20-30 times more energy than the 1 W required by my circuit: maybe I'm too environmental conscious, but I do not like to waste energy 24/7/365. Even because here in Italy the price of electrical energy is the highest in Europe http://www.energy.eu/! 4) I need to keep the EMI reduced to a minimum: all of the electronics in the laptop and its SMPS will generate lots of noise (especially if it is an obsolete one: I have already tried this path!). My receivers prefer other type of noise :-) 5) Most important one: I like to build things! _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Frequency counter recommendation
From: Chris Caudle The problem with USB-RS232 adapters is that there is no class compliant device, because there is no USB class for RS232 emulators. Doesn't exist, so every device you've ever seen or used is a custom USB device. The drivers for the FTDI devices ship with modern variants of Windows and recent Linux distributions, which makes it behave essentially the same as a USB class compliant device, but ubiquitous is not the same as standardized. Sorry to contradict you: it exists and it is called CDC class: http://en.wikipedia.org/wiki/USB_communications_device_classjavascript:void(0); On Windows (for the the serial adapters) it was completely supported from XP (SP2?). If your device is _really_ CDC compliant and you have lost its drivers it is enough to take the .INF file from another vendor and, with a text editor, modify it accordingly to the VID PID of your adapter. If you know the inner working of .INF files, you will discover that a true CDC class compliant device will not require any file except for the .INF description If the .INF will load other files (.SYS) it can be for 2 reasons: 1) the device is not really CDC compliant 2) it can work faster if used in a proprietary mode _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Hyperterminal with variable baud rate
From: Hal Murray hmur...@megapathdsl.net Are there any terminal programs out there that allow you to select rates other than the standard values? I doubt if you will have much luck in that area, but please let me/us know if you find something. You can use the wonderful Tera Term (http://ttssh2.sourceforge.jp/): it accepts nonstandard values in the speed parameter. I verified it with an oscilloscope. _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] SSL certificate expired
1. Re: Febo.com SSL certificate expired to my knowledge you can get a free SSL certificates using: http://www.startssl.com/?app=0 http://www.startssl.com/?app=1 it is even recognized by Microsoft: http://www.istartedsomething.com/20091010/microsoft-free-root-certificate-authority-windows/ BTW, I never used them, but a friend of mine did and he never complained about... _Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] One of the strangest clocks I have ever heard...
One of the strangest clocks I have ever heard... http://www.music.columbia.edu/~douglas/portfolio/sineclock/ . ciao _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Racal 1992
mine 1992 (S/N: 992064) mounts a 9462 (454879, REV A) 5MHz OCXO: any more info about it? _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT: 10 MHz data capture, help
-- Forwarded message -- From: Tom Van Baak t...@leapsecond.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Date: Fri, 10 Apr 2009 13:38:55 -0700 Subject: [time-nuts] OT: 10 MHz data capture, help I'd like to do a continuous capture of the bits, for up to tens of minutes, into a PC. That comes to about 1 GB of raw data. I can handle the decoding of the bits in software after the capture is done. This is a one-time experiment. What is the best/quickest/easiest way to capture data like this? I've looked at various USB or LAN logic analyzer and 'scopes but most seem to work on batches of data. I need a continuous capture. Maybe you can use one of those products: http://www.usbee.com/ just to not waste samples memory, you can deserialize the signal with a 8 bit Shift register and use the clock/8 as trigger for sampling received data. Unfortunately, the cheaper one (SX) lets you use only your PC memory as capture buffer. You have to resort to more expensive models to directly stream your data to HDD. Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] FE-5650A Rb: your opinions?
At this date I have no frequency standard at home. I'd like to buy one FE-5650A Rb used unit (230US$ s/h included) so I will be able to use it as a reference/comparation for my future DIY GPSDO. BTW, I found interesting the provision to use the internal DDS to generate different frequencies than 10MHz: maybe I will use a different DDS chip (9912) so the resolution will be 48 bits instead of 32... Or will it be better to spend my money in something like a Thunderbolt unit? . thanks in advance _Elio. P.S. do you know what is the WORKING temperature of the unit? I checked the data sheets but couldn't found any reference to it: do I need to fix it to a heatsink? P.P.S. I live in Europe, so now I have a really good Euro/Dollar exchange rate! :-) ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Racal Dana 1992 - GPIB interface ([EMAIL PROTECTED])
I can't check what type of interface is present on my two 1992-02M, neither if the SK4 in present, because the counters are running and I wan't stop them. Unless they are rack mounted, you don't need to turn them off to check what interface you have: - remove the rear bezel (unscrew two screws) - slide the 1992 cover until you can take a look to the GPIB board. - Refer to the documentation to identify the board (see my page number references in the previous post). - touch with your finger the jumper (if present): if it is in the default position you will feel two pins, otherwise (in GPIB mode) you will fill the jumper. Are you using a 1992 in standard GPIB mode after having moved the jumper? Where did you find the info? I just tested it: in the default position it does not answer to the 'CK' command. P.S. are you in Italy? Yes, I'm italian: you can directly contact me! .ciao _ Elio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Racal Dana 1992 - GPIB interface
I'm resending this message because the first one was lost in the meanders of internet I have 2 different Racal Dana 1992 frequency counters: The first one (kept for spares because the display is broken) has a GPIB interface of type 19-1146: this interface has NOT the SK4 jumper (see RACAL-DANA-1991-1992-ServiceManualSch.pdf pages 16/17 in my archive). The other one, in perfect state, has the 401820 GPIB board (see RACAL-DANA-1991-1992-IM.pdf pages 200/203). This board has the SK4 jumper and if you want to use the 1992 in standard GPIB mode, you have to put the jumper in the OTHER position as the one shown at page 200 (points 40/41). I have not tried the 1992 in MATE/CIIL interface mode, so I don't know if it works in the SK4 default mode... By the way, I have also the documentation (26 pages) of the MATE/CIIL protocol/programming for the 1992-02M: if you are interested in, I will make a .PDF of it. I have uploaded a .RAR file containing all of the electronic documentation (see previous references) I have regarding the 1991/1992 and the EPROM images of the 1992/GPIB firmware. You can find the documentation files (PDFs + EPROM images) at the following address: http://rapidshare.com/files/98965341/Racal_Dana_1992_EPROMs.rarhttp://rapidshare.com/files/98965341/Racal_Dana_1992_EPROMs.rar (12MB) _Elio. P.S. I'm a lucky one: my keyboard works flawlessly!!! P.P.S. Have you some newer releases of the firmware? ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Racal Dana 1992 - GPIB interface
I have 2 different Racal Dana 1992 frequency conter: The first one (kept for spares because the display is broken) has a GPIB interface of type 19-1146: this interface has NOT the SK4 jumper (see RACAL-DANA-1991-1992-ServiceManualSch.pdf pages 16/17 in my archive). The other one, in perfect state, has the 401820 GPIB board (see RACAL-DANA-1991-1992-IM.pdf pages 200/203). This board has the SK4 jumper and if you want to use the 1992 in standard GPIB mode, you have to put the jumper in the OTHER position as the one shown at page 200 (points 40/41). I have not tried the 1992 in MATE/CIIL interface mode, so I don't know if it works in the SK4 default mode... By the way, I have also the documentation (26 pages) of the MATE/CIIL protocol/programming for the 1992-02M: if you are interested in, I will make a .PDF of it. I have uploaded a .RAR file containing all of the electronic documentation (see previous references) I have regarding the 1991/1992 and the EPROM images of the 1992/GPIB firmware. You can find the file (PDFs + EPROM images) at the following address: http://rapidshare.com/files/98965341/Racal_Dana_1992_EPROMs.rar (12MB) _ Elio. P.S. I'm a lucky one: my keyboard works flawlessly!!! P.P.S. Have you some newer releases of the firmware? ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Lucent RFTG-m-XO GPS Disciplined Frequency Standard
At the following link: http://cgi.ebay.com/Lucent-RFTG-m-XO-GPS-Disciplined-Frequency-Standard_W0QQitemZ110108963303QQcategoryZ83640QQssPageNameZWDVWQQrdZ1QQcmdZViewItem ( Item number: 110108963303 ) you can find (I hope) some informations about the Lucent RFTG-m-XO GPS Disciplined Frequency Standard. The most interesting thing is the following image: http://www.corallinks.com/tmbroker/images/small_notes_rftg-m-xo.JPG in which are stated (in german and little print) the pinouts of the connectors and some details in what I think is the output messages sent by the RFTG-m-XO. I hope this can be interesting for some of you who bought those devices... . best regards _ Elio Corbolante. P.S. Please forgive me if those informations were already known!!! ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Thunderbolts available (maybe in quantity)
Dear Time-nuts, I'd like to buy one unit, for about 200-250$, but like Mr. Jeroen, I live in Europe... If the whole group will buy in quantity, will someone of you be so kind (via previous payment using my credit card or PayPal) to buy one unit for me? .best regards _ Elio Corbolante. ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
