db9f to usb-c serial
i know this is geeky, and not telling anyone else how thry should run their network. but i gotta try. :) so i have this nice (i.e. small and simple) ftdi usb-c to rj45m blue router craft/console cable. i also have a db9f to rj45m cable, also robin's egg blue. i i also have an old and clunky keyspan to usb-a; old, clunky, usb-a. i want the equivalent usb-c ftdi (mac compat) to db9f *server* serial console cable. 1-2m. integrated, slick, and sexy. magenta preferred, of course :) know any nice ones? randy
Probably not much bulkier to just add a DB9-RJ45 adapter shell like this: https://www.monoprice.com/product?p_id=1153 Then, you can just use your existing USB-C to RJ45 cable and have both options. thanks, -Randy ----- On Sep 23, 2024, at 9:41 PM, Randy Bush randy@psg.com wrote:
i know this is geeky, and not telling anyone else how thry should run their network. but i gotta try. :)
so i have this nice (i.e. small and simple) ftdi usb-c to rj45m blue router craft/console cable. i also have a db9f to rj45m cable, also robin's egg blue. i i also have an old and clunky keyspan to usb-a; old, clunky, usb-a.
i want the equivalent usb-c ftdi (mac compat) to db9f *server* serial console cable. 1-2m. integrated, slick, and sexy. magenta preferred, of course :)
know any nice ones?
randy
On Mon, Sep 23, 2024 at 6:59 PM Randy Carpenter <rcarpen@network1.net> wrote:
Probably not much bulkier to just add a DB9-RJ45 adapter shell like this:
https://www.monoprice.com/product?p_id=1153
Then, you can just use your existing USB-C to RJ45 cable and have both options.
Buy it pre-made. The pinout isn't perfectly 1:1 - a single ground on the DB9 side goes to two grounds on the RJ45 side. This makes it a nuisance to make your own dongles. https://www.amazon.com/dp/B002DUD1RY The price is rude but Cisco hasn't made them for many years, so you get what you get. You can also connect one of the newer db9 to rj45 blue cables to a usb-c to rj45 cable using a reverse inline coupler: https://www.amazon.com/dp/B000I97FNI Regards, Bill Herrin -- William Herrin bill@herrin.us https://bill.herrin.us/
On Mon, Sep 23, 2024 at 6:41 PM Randy Bush <randy@psg.com> wrote:
so i have this nice (i.e. small and simple) ftdi usb-c to rj45m blue router craft/console cable. i want the equivalent usb-c ftdi (mac compat) to db9f *server* serial console cable.
Why not just plug that usb-c to RJ-45 cable into one of the old RJ-45 to DB-9 dongles? If you really want it to be permanent, use superglue and some heat-shrink tubing to make it nice and neat. Regards, Bill Herrin -- William Herrin bill@herrin.us https://bill.herrin.us/
Try B0CL4T6NN9 at Amazon, even has a 10ft option. On Mon, Sep 23, 2024 at 7:45 PM Randy Bush <randy@psg.com> wrote:
i know this is geeky, and not telling anyone else how thry should run their network. but i gotta try. :)
so i have this nice (i.e. small and simple) ftdi usb-c to rj45m blue router craft/console cable. i also have a db9f to rj45m cable, also robin's egg blue. i i also have an old and clunky keyspan to usb-a; old, clunky, usb-a.
i want the equivalent usb-c ftdi (mac compat) to db9f *server* serial console cable. 1-2m. integrated, slick, and sexy. magenta preferred, of course :)
know any nice ones?
randy
-- - Andrew "lathama" Latham -
On 9/24/24 00:33, Bjørn Mork via NANOG wrote:
You could get a Netra T1 with RJ45 serial ports, using Sun/Cisco pinout, 25 years ago. And we're still struggling with DB9 connectors. Why?
Sun and Cisco 8-pin modular serial pinouts are very different. (Pedantic nit to pick - not all 8-pin modular jacks are RJ-45.) -- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV
On Tue, 24 Sep 2024, at 08:45, Jay Hennigan wrote:
(Pedantic nit to pick - not all 8-pin modular jacks are RJ-45.)
The D connectors in question are also correctly called DE-9, unless it is the larger DB shell which would usually be a 25-pin connector with only 9 pins populated. Ant
On Tue, Sep 24, 2024 at 9:54 AM Anthony Newman via NANOG <nanog@nanog.org> wrote:
On Tue, 24 Sep 2024, at 08:45, Jay Hennigan wrote:
(Pedantic nit to pick - not all 8-pin modular jacks are RJ-45.
The D connectors in question are also correctly called DE-9, unless it is the larger DB shell which would usually be a 25-pin connector with only 9 pins populated.
Sure, sure, and it's also TIA-232 not RS-232. It hasn't been a "recommended standard" since at least 1986. Try googling for de-9 instead of db-9. The world understands the 9-pin d-sub to be db9. Regards, Bill Herrin -- William Herrin bill@herrin.us https://bill.herrin.us/
Jay Hennigan <jay@west.net> writes:
On 9/24/24 00:33, Bjørn Mork via NANOG wrote:
You could get a Netra T1 with RJ45 serial ports, using Sun/Cisco pinout, 25 years ago. And we're still struggling with DB9 connectors. Why?
Sun and Cisco 8-pin modular serial pinouts are very different.
(Pedantic nit to pick - not all 8-pin modular jacks are RJ-45.)
No, no, no. We can have fun for a long time with this :-) You can find the Netra T1 105 serial pinout on page 56 in the User and Administration Guide (thanks Oracle for keeping that available!): https://docs.oracle.com/cd/E19957-01/806-4707/806-4707.pdf Here's the table for convenience: TABLE 6-3 Pin Cross-overs for a DB9 (9-pin) Adapter Serial Port (RJ45 Connector) Pin 9-pin Connector Pin 1 (RTS) Pin 8 (CTS) Pin 2 (DTR) Pin 6 (DSR) Pin 3 (TXD) Pin 2 (RXD) Pin 4 (Signal Ground) Pin 5 (Signal Ground) Pin 5 (Signal Ground) Pin 5 (Signal Ground) Pin 6 (RXD) Pin 3 (TXD) Pin 7 (DSR) Pin 4 (DTR) Pin 8 (CTS) Pin 7 (RTS) The Cisco pinout is of course all over the place. One example: https://www.cisco.com/c/en/us/td/docs/wireless/asr_901/Hardware/Guide/HW_Gui... On page B-4 we have: Cable B-3 Console Port Pinouts Pin Signal Name HP Pins Direction Description 1 RTS UART_RTS1 Output Request to send 2 DTR NC 3 TXD UART_SOUT1 Output Transmit data 4 RI GND Ring indicator 5 GND GND 6 RXD UART_SIN1 Input Receive data 7 DSR/DCD NC Input Data set ready/Data Carrier detect 8 CTS UART_CTS1 Input Clear to send Bjørn
On 24.09.2024 03:41, Randy Bush wrote:
i want the equivalent usb-c ftdi (mac compat) to db9f *server* serial console cable. 1-2m. integrated, slick, and sexy. magenta preferred, of course :)
How about this one? https://www.metabee.com/usb-type-c-to-rs-232-serial-db09-female-adapter-cabl... Never used one, so no idea if they work - but at least its cheap ;) -- Fabian
I use one of these: https://redpark.com/usb-c-serial-cable/ From: NANOG <nanog-bounces+webnetwiz=gmail.com@nanog.org> on behalf of Randy Bush <randy@psg.com> Date: Tuesday, September 24, 2024 at 4:43 PM To: Fabian Mauchle via NANOG <nanog@nanog.org> Subject: Re: db9f to usb-c serial
https://www.metabee.com/usb-type-c-to-rs-232-serial-db09-female-adapter-cabl...
oooooooo!
Now do that but with an RJ45 at the end (e.g., Cisco, Arista chassis, etc)
On Sep 25, 2024, at 16:51, David Kotlerewsky <webnetwiz@gmail.com> wrote:
I use one of these: https://redpark.com/usb-c-serial-cable/ From: NANOG <nanog-bounces+webnetwiz=gmail.com@nanog.org> on behalf of Randy Bush <randy@psg.com> Date: Tuesday, September 24, 2024 at 4:43 PM To: Fabian Mauchle via NANOG <nanog@nanog.org> Subject: Re: db9f to usb-c serial
https://www.metabee.com/usb-type-c-to-rs-232-serial-db09-female-adapter-cabl...
oooooooo!
On Sat, 5 Oct 2024, Javier Henderson via NANOG wrote:
Now do that but with an RJ45 at the end (e.g., Cisco, Arista chassis, etc)
I have one that looks like this one, don't know if it's the exact same. Have had it for several years. https://www.amazon.com/Console-Compatible-Windows-Switch-Router/dp/B08BCQ8LL... -- Mikael Abrahamsson email: swmike@swm.pp.se
Here’s the one with an RJ45 end. Works well on Apple’s iPadOS ans iOS devices with various terminal apps: https://redpark.com/usb-c-console-cable/ From: Mikael Abrahamsson <swmike@swm.pp.se> Date: Saturday, October 5, 2024 at 6:51 AM To: Javier Henderson <javier@kjsl.com> Cc: David Kotlerewsky <webnetwiz@gmail.com>, Fabian Mauchle via NANOG <nanog@nanog.org> Subject: Re: db9f to usb-c serial On Sat, 5 Oct 2024, Javier Henderson via NANOG wrote:
Now do that but with an RJ45 at the end (e.g., Cisco, Arista chassis, etc)
I have one that looks like this one, don't know if it's the exact same. Have had it for several years. https://www.amazon.com/Console-Compatible-Windows-Switch-Router/dp/B08BCQ8LL... -- Mikael Abrahamsson email: swmike@swm.pp.se
https://www.amazon.com/Console-Compatible-Windows-Switch-Router/dp/B08BCQ8LL...
have that. and the one that goes from rj45m to db9f. it was the usb to db9f for which i hungered. ordered the pink one from china; how could i resist? :) randy
participants (12)
-
Andrew Latham -
Anthony Newman -
Bjørn Mork -
David Kotlerewsky -
Fabian Mauchle -
Javier Henderson -
Jay Hennigan -
Mikael Abrahamsson -
Mike Lyon -
Randy Bush -
Randy Carpenter -
William Herrin