Retronetworking

h1. Gerdes PrimuX USB II (No. 2110)

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A ISDN BRI USB adapter made by "Gerdes AG":https://www.gerdes-ag.de/

Website

https://www.gerdes-ag.de/en/products/primux/soho/

Datasheet

attachment:Gerdes_PrimuX_USB_II-datasheet.pdf (german)

A closed source driver for Linux can be downloaded from the "website":https://www.gerdes-ag.de/en/service/primux/downloads/ but the kernel interface layer can only be compiled with kernel versions < 2.6.25

h2. Hardware

|Supply Voltage|USB bus powered|

|Power Consumption| ? |

|ISDN Line Connector|RJ45|

|USB Connector|Type B|

h2. Pictures

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{{thumbnail(PrimuX_USB_II-case-bottom1.jpg)}}

{{thumbnail(PrimuX_USB_II-case-open1.jpg)}}

{{thumbnail(PrimuX_USB_II-pcb-perspective.jpg)}}

{{thumbnail(PrimuX_USB_II-pcb-top1.jpg)}}

{{thumbnail(PrimuX_USB_II-pcb-bottom1.jpg)}}

We can see here

* Microchip PIC18F85J50 (USB Controller) attachment:PIC18F87J50.pdf

* Cologne Chip XHFC-1SU ISDN (Extended ISDN HDLC FIFO controller) attachment:XHFC-1SU.pdf

* UMEC UT20795-05TS (ISDN S0 Transformer)

h2. USB

<pre>

usb 3-6.3.2: new full-speed USB device number 18 using xhci_hcd

usb 3-6.3.2: New USB device found, idVendor=04d8, idProduct=fa0d, bcdDevice= 0.00

usb 3-6.3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0

usb 3-6.3.2: Product: PrimuX USB II

usb 3-6.3.2: Manufacturer: Gerdes Aktiengesellschaft

</pre>

<pre>

Bus 003 Device 018: ID 04d8:fa0d Microchip Technology, Inc. PrimuX USB II

Device Descriptor:

  bLength                18

  bDescriptorType         1

  bcdUSB               1.10

  bDeviceClass            2 Communications

  bDeviceSubClass       128 

  bDeviceProtocol         0 

  bMaxPacketSize0         8

  idVendor           0x04d8 Microchip Technology, Inc.

  idProduct          0xfa0d 

  bcdDevice            0.00

  iManufacturer           1 Gerdes Aktiengesellschaft

  iProduct                2 PrimuX USB II

  iSerial                 0 

  bNumConfigurations      1

  Configuration Descriptor:

    bLength                 9

    bDescriptorType         2

    wTotalLength       0x0029

    bNumInterfaces          1

    bConfigurationValue     1

    iConfiguration          0 

    bmAttributes         0xa0

      (Bus Powered)

      Remote Wakeup

    MaxPower              100mA

    Interface Descriptor:

      bLength                 9

      bDescriptorType         4

      bInterfaceNumber        0

      bAlternateSetting       0

      bNumEndpoints           0

      bInterfaceClass         2 Communications

      bInterfaceSubClass    128 

      bInterfaceProtocol    255 

      iInterface              0 

    Interface Descriptor:

      bLength                 9

      bDescriptorType         4

      bInterfaceNumber        0

      bAlternateSetting       1

      bNumEndpoints           2

      bInterfaceClass         2 Communications

      bInterfaceSubClass    128 

      bInterfaceProtocol    255 

      iInterface              0 

      Endpoint Descriptor:

        bLength                 7

        bDescriptorType         5

        bEndpointAddress     0x01  EP 1 OUT

        bmAttributes            1

          Transfer Type            Isochronous

          Synch Type               None

          Usage Type               Data

        wMaxPacketSize     0x0040  1x 64 bytes

        bInterval               1

      Endpoint Descriptor:

        bLength                 7

        bDescriptorType         5

        bEndpointAddress     0x81  EP 1 IN

        bmAttributes            1

          Transfer Type            Isochronous

          Synch Type               None

          Usage Type               Data

        wMaxPacketSize     0x0040  1x 64 bytes

        bInterval               1

Device Status:     0x0001

  Self Powered

</pre>

h2. Windows

h3. capiinfo

capiinfo.exe (Windows 10)

<pre>

Manufacturer: PrimuX ISDN 3.10.9-gd9e34276 (c) 1995-2023 Gerdes AG

CAPI Version: 2.0

Manufacturer Version: 3.10

Serial Number:

Installed Controllers: 1

Supported B-Channels:  2

Controller 1:

Global:

   internal controller supported

   DTMF supported

   Supplementary Services supported

B1-Protocols:

   64 kbit/s with HDLC framing

   64 kbit/s bit-transparent operation

   V.110 asynconous operation with start/stop byte framing

   V.110 synconous operation with HDLC framing

   T.30 modem for fax group 3

B2-Protocols:

   ISO 7776 (X.75 SLP)

   Transparent

   LAPD with Q.921 for D channel X.25 (SAPI 16)

   T.30 for fax group 3

   Transparent (ignoring framing errors of B1 protocol)

   LAPD with Q.921 including free SAPI selection

B3-Protocols:

   Transparent

   T.90NL, T.70NL, T.90

   ISO 8208 (X.25 DTE-DTE)

   T.30 for fax group 3

   T.30 for fax group 3 with extensions

</pre>