Gerdes PrimuX USB II (No. 2110)¶

A ISDN BRI USB adapter made by Gerdes AG

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

Datasheet

• Gerdes_PrimuX_USB_II-datasheet.pdf (german)

A closed source driver for Linux can be downloaded from the website but the kernel interface layer can only be compiled with kernel versions < 2.6.25

Pictures¶

We can see here

• Microchip PIC18F85J50 (USB Controller) PIC18F87J50.pdf
• Cologne Chip XHFC-1SU ISDN (Extended ISDN HDLC FIFO controller) XHFC-1SU.pdf
• UMEC UT20795-05TS (ISDN S-Interface Transformer)

USB¶

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

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