# Icom RJ-45 Cable for Digirig Mobile
**URL:** https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576
**Category:** Uncategorized
**Tags:** icom-ic-880, icom-ic-208
**Created:** [November 20, 2022, 12:00am UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576 "2022-11-20T00:00:51Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@N9KO](https://forum.digirig.net/u/N9KO)
#### Post date: [November 20, 2022, 12:00am UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/1 "2022-11-20T00:00:51Z")
I bought a digirig for my 706 with the standard setup. I see the cable in the subject line can be used for the 208 and 880. Will the digirig that I bought for the 706 work with these cables on my 208 and 880 without cutting/soldering any traces?
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [November 20, 2022, 5:22pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/2 "2022-11-20T17:22:46Z")
ICOM RJ-45 cables can be used with Digirig 1.6 or later in any configuration.
The cable provides connectivity for audio + PTT while the serial port configuration only applies to the CAT control.
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### Author:  [@N9KO](https://forum.digirig.net/u/N9KO)
#### Post date: [November 20, 2022, 8:57pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/3 "2022-11-20T20:57:36Z")
Thanks for both replies. Will try tomorrow.
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### Author:  [@N9KO](https://forum.digirig.net/u/N9KO)
#### Post date: [December 14, 2022, 7:14pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/4 "2022-12-14T19:14:23Z")
Getting ready to buy the RJ-45 cables. Based on your comment above, what cable (extra?) will I need for the serial port configuration and CAT control?
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [December 14, 2022, 9:51pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/5 "2022-12-14T21:51:09Z")
There is a serial data connection available through one of the TRS sockets, but at this time I don’t have pre-made cables for it.
I’m testing the pinouts and will add the cable to the store early next year. Please signup to the mailing list on the homepage to receive the availability notifications.
If you going to give a homebrew serial cable a try, please report your results here.
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### Author:  [@ZS6VLT](https://forum.digirig.net/u/ZS6VLT)
#### Post date: [January 4, 2023, 6:26pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/6 "2023-01-04T18:26:08Z")
@K0TX
Hi Denis, Do you or anyone maybe have a wiring diagram for the Icom RJ45 Cable for Digirig mobile fir ver.1.6+ using TRRS.
It would be a great base to start the Kenwood RJ45 Split cable design from.
For sure I will share the working cable design afterwards. Maybe that will call for a new thread.
Thank you!
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [January 4, 2023, 6:38pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/7 "2023-01-04T18:38:35Z")
Here’s my sketch:
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### Author:  [@ZS6VLT](https://forum.digirig.net/u/ZS6VLT)
#### Post date: [January 5, 2023, 9:46am UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/8 "2023-01-05T09:46:21Z")
Thank you! Ill make some work of this the weekend.
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### Author:  [@anthony.dykema](https://forum.digirig.net/u/anthony.dykema)
#### Post date: [March 29, 2026, 12:44am UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/9 "2026-03-29T00:44:06Z")
Total newb question here…
I have an ICOM IC-2730. I get where you plug the RJ45 Connector in. (In my case the head is mounted to the body.) The other two connections are not color coded like the dr-891. Is there a preferred connection to the serial port on the Digirig over the speaker two port. I am tanking a guess in saying that the coiled one with the ferrite bead is going into speaker two port as it it is the one used for programming.
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [March 30, 2026, 10:33pm UTC](https://forum.digirig.net/t/icom-rj-45-cable-for-digirig-mobile/576/10 "2026-03-30T22:33:36Z")
Anthony,
With ICOM RJ-45 cable nothing plugs into Digirig Mobile’s serial socket. 4-pin jack on the separate end of the cable goes into Digirig’s audio socket. 3-pin jack sharing the end of the coiled cable with RJ-45 jack goes into radio’s external speaker socket.