Please help me w/ a connector for my Rubidium EFRATOM FRS -> DAM11W1S - Page 1
Forum section: electronics / testgear

author: DC1MC
author_rank: Super Contributor
timestamp: March 30, 2018, 10:05:44 pm
content: Hello everybody, I'm the proud owner of a Rubidium 10MHz reference BALL-EFRATOM FRS.All nice and dandy, except for the ridiculous connector, a unholybastard child between a DB15 and a coaxial connector, that has the designation:Cannon DAM11W1SI found some on the usual suspects sites, but unfortunately got lost into the ordering, it seems that each and every part must be ordered separately (connector, shell, the coax insertion, screws, etc) and there are a lot of options.I kindly ask the owners of such a device (nobody else will use or deal with such a ridiculous unpractical crap) to help me order it completely from Mouser or other source, or if it has one available in DE, please let me know, I'll buy it from you.Manual is here, too big to attach it:http://manuals.repeater-builder.com/te-files/MISCELLANEOUS/BALL%20EFRATOM%20FRS%20Operation.pdfMany thanks,DC1MC

author: texaspyro
author_rank: Super Contributor
timestamp: March 31, 2018, 03:27:13 am
content: The SRS PRS-10 rubidium is a much-upgraded version of the FRS. I have laid out an interface board that will connect these devices to my BNC/SMA breakout board that brings out the signals to BNC or SMA connectors. It also has a buffer for the (PRS10) 1PPS output and a sine wave squarer for producing an ACMOS square wave output.I hope to be able to offer the pair of boards for around $50, assembled.Or you could probably use the SRS PRBB PRS-10 breakout board ($150).If ordering from Mouser, you only really need the connector and coax insert. You can skip the housing, screws, etc or use any DB-15 ones.I do have a couple of extra coax cable inserts... I'm using the PCB mount ones for my board.

author: texaspyro
author_rank: Super Contributor
timestamp: March 31, 2018, 03:34:22 am
content: Solder cup housing from Newark:http://www.newark.com/fct-a-molex-company/fm11w1sa-k121/d-sub-comb-connector-receptacle/dp/78X5002Coax cable insert (oops, 75 ohm?... there's conflicting info about that):http://www.newark.com/fct-a-molex-company/fms002p102/d-sub-coax-contact-pin-crimp-75ohm/dp/78X4995Newark is probably closing out this product line. I bought most of the housing a month or so ago when they were being dumped. I tweaked my PCB footprint to let me use header pins to mount the solder cup version to a PC board.

author: DC1MC
author_rank: Super Contributor
timestamp: March 31, 2018, 06:41:09 am
content: Thanks for the info @texaspyro, unfortunately I have a FRS and tha's it, I have to live with it.On the other side, the guys form US really have it good, element14 is indeed dumping the connectors, for 96c a piece (instead of 7USD), switch to the German site, and puff goes the shopping cart and prices comes up considerably, like 10 time moreWhile your information is pretty useful for someone based in US, I still want some that is applicable in DE/Eu, or just a complete connector, also, if possible, give me the codes for the plastic shell, the biggest for for this connector, I want to integrate a LED and a transistor to drive it, for LOCK state signaling.Cheers,DC1MCEDIT: Hey what do you know, the Farnell Germany doesn't consider private persons partners that are worth dealing with and forward me to a "partner" site, so here you have a revealing comparison:Part number: FM11W1PA-K120US Site:31 In stock for same day shipping$0.957 Price for: EachGerman "partner" Site für Untermenschen:10,37 €inkl. 19% USt. , zzgl. Versand (Standard Versand)ab Stk 1 Stückpreis10,37 €Fuuuuuuuuuuuu...

author: DC1MC
author_rank: Super Contributor
timestamp: April 02, 2018, 07:36:40 pm
content: Just in case someone in Germany needs the coax insert, I've found them at an acceptable price at Conrad, of all places:The crimping variant:Koaxial-Stiftkontakt Vergoldet Conec 131J20029XThe soldering variant:Koaxial-Stiftkontakt Gold auf Nickel Conec 131J20049XGot a standard DB15, Conrad only has the 3 coax contraption variant:D-SUB Buchsenleisten-Set 180 ° Polzahl: 15 Lötkelch encitech DPPK15-BK-DBS-KAnd some RG174 coax cable:Koaxialkabel Außen-Durchmesser: 2.67 mm RG174 A/U 50 ? Schwarz VOKA Kabelwerk 304660-87 MeterwareI've did a test drilling on the socket the vendor provided, it gets nice, but is still a improvisation, if someone can point me to the original shell where can be have to a cost of no more than 4-5EUR, I'll be fully happy.Cheers,DC1MC

author: SoundTech-LG
author_rank: Frequent Contributor
timestamp: April 03, 2018, 03:44:15 pm
content: SRS has the "service manual" posted on their site for the PRS10, unfortunately, as usual, they leave out the described schematic listed in the contents...http://www.thinksrs.com/downloads/PDFs/Manuals/PRS10m.pdfAnyone know if there is a schematic around???

author: SoundTech-LG
author_rank: Frequent Contributor
timestamp: April 03, 2018, 03:51:16 pm
content: Sorry...Here they are...http://www.ko4bb.com/getsimple/index.php?id=manuals

author: texaspyro
author_rank: Super Contributor
timestamp: April 03, 2018, 04:25:11 pm
content: Quote from: SoundTech-LG on April 03, 2018, 03:44:15 pm

author: SoundTech-LG
author_rank: Frequent Contributor
timestamp: September 14, 2018, 04:50:29 pm
content: Just picked up PRS-10 part# 123-44101-06 anyone know how to decode the part #?Are these BOB PCBAs now available???

author: matthuszagh
author_rank: Frequent Contributor
timestamp: March 04, 2023, 05:30:42 pm
content: Quote from: texaspyro on March 31, 2018, 03:27:13 amCan you confirm the part numbers for the PCB pin version of the mating connector? For the D-sub I think it's DAM11W1SN. I couldn't find the part number for the PCB version of the 50ohm coax insert, though.

author: kbrill
author_rank: Contributor
timestamp: March 04, 2023, 10:18:57 pm
content: Lousy photoLeft over from a surplus purchase of 26 rubidium's made 30 years agoIf you can propose a simple means of shipment and a price inclusive of shipping