Emlid RS2/3 to Trimble TDL450/Harxon external radio cable

Hello all.

Is anyone aware of a commercially available power/data cable for connecting an RS2 or RS3 to a Trimble TDL450H external radio? From what I can see, it appears that Harxon external radio have an identical pinout to the Trimble external radio.

IYKYK

Thanks all

You will need two cables:

  1. The Reach CBL102 9-pin LEMO to DB9 male
  2. And one like this, the TDL450H is a rebadged Pacific Crest ADL Vantage 35 and the 5-pin LEMO is standard across their radio range: New Programming Cable A00470 for 35-watt Radio Pacific Crest PDL HPB | eBay

Works fine for me with Pacific Crest PDL & ADL

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Ok thanks for your response Wombo. And safe to assume the pinouts all matched, no mods required?

Not sure, but keep in mind the CBL102 transfers data only, no power. The cutoff CBL101 has power etc if installing a permanent base.

Make sure you double check the pin out diagrams either way.

@Wombo says his works fine, so probably so.

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Ah ok thanks for the tip with power only in the cut off cable

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May not need it but wanted to point that out as the DB9 cables are DATA ONLY (so no surprise) in case u need power also for whatever else u may be doing.

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Appreciate it thankyou, yes I am wanting it to be semi permanent so definitely need power. It’s certainly proving to be a good thing Emlid incorporating a UHF 450 radio into the receivers, just be handy if it could work with CMRx or even CMR+ so we don’t upset all the Trimble guys making them change their settings when going to an all Trimble site :stuck_out_tongue_closed_eyes:

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Yes, timd1971 is right. If you want power for a permanent base you will need the unterminated cable and install your own DB9 which only needs Tx, Rx & SigGnd as per diagrams. The pinouts are fine.

That said note UHF is generally not used on a permanent base (at least here in Aus & surveying), ACMA Area Wide Licences that enable you to go to sites have transmission duration conditions.

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Hi Brenton,

From the Reach end, you can use this Reach cable 2m w/o 2nd connector

In the integration with Harxon Radio, we add a cable with two ends, one for transmitting the data (5 pins) and one for the power supply, as shown below:

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Hi Merryna, please see attached photo. Is this a cable that you have made? Because a cable with a 9 pin one end to suit Emlid and 5 pin on the other to go into the Harxon and built in power doesn’t seem to be available anywhere for purchase.

Note in this case the SAE power connector will likely be supplying the 5-pin radio end only and not the Reach.

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Ah ok thanks Wombo

hello did you find a cable for harxon connecting to serial port?
mine is from type C OTG
i cant figure out how to connect to serial no correction


can i buy the customize cable separetely

I’m still waiting to get a cable modified so I can connect to the 9 pin port. Presently I have been attempting to connect to a Trimble TDL450 (essentially the same as the Harxon) via Emlids USB OTG port however I can’t get data into the TDL450. Tried everything, serial bauds are all matching, tested continuity of programming cable, ensured correct pinouts on everything, still no good.

you need a good quality db9 rs232 to usb cable
this one works for me FTDI USB 2.0 Converter Adapter Cable to RS-232

Ok thanks for the tip.

Its a little frustrating because I have been able to connect the TDL450 to my computer with a Trimble programming cable and USB C to DB9 I purchased (which is only constructed as a USB 1.1 cable) using TDLCONF to change settings, and also ran puTTy which proved the radio was receiving transmissions ok.

Did you have trouble with some cheaper brand USB C to DB9 cables initially?

yes some cable works in radio to computer but in emlid to radio not.

Ok appreciate the feedback. I have ordered a cable the E38 recommend on their site and will test and report back. Thanks again

The challenge is the various USB serial adapters all require a matching driver, that would for example be automatically installed into Windows. The question is what’s included in the Reach OS because you’re not going to be able to modify it.

Personally, I wouldn’t be messing with the USB C, just focus on the Emlid Lemo serial cable, it just works fine. Did you try Mangoes Mapping/Mapgear? They’re local up your way and great to deal with, that’s where I got mine.

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