Retronetworking

h1. U.S. Robotics USB 56K Faxmodem (Model: 5637)

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A 56k USB modem made by U.S. Robotics.

Website

https://www.usr-emea.com/support/s-product-template.asp?loc=unkg&prod=5637

Manual

* attachment:USR_Modem_5637_USB-datasheet.pdf

* attachment:USR_Modem_5637_USB_user-guide.pdf

Multiple hardware revisions exist.

h2. Hardware

|Supply Voltage| 5V DC USB powered|

|Power Consumption| ~0.20A (idle)|

|Line Connector|RJ11|

{{thumbnail(USR_56K_FAX_USB_5637-case-perspective1.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-case-bottom1.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-case-bottom2.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-pcb-perspective1.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-pcb-top1.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-pcb-bottom1.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-case-3x-side.jpg)}}

{{thumbnail(USR_56K_FAX_USB_5637-case-3x-back.jpg)}}

h2. USB

<pre>

usb 3-6.3.2: new high-speed USB device number 15 using xhci_hcd

usb 3-6.3.2: New USB device found, idVendor=0baf, idProduct=0303, bcdDevice= 2.00 

usb 3-6.3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=10 

usb 3-6.3.2: Product: USB Modem

usb 3-6.3.2: Manufacturer: U.S.Robotics

usb 3-6.3.2: SerialNumber: 0000002

cdc_acm 3-6.3.2:2.0: ttyACM1: USB ACM device

</pre>

<pre>

Bus 003 Device 016: ID 0baf:0303 U.S. Robotics USR5637 56K Faxmodem

Device Descriptor:

  bLength                18

  bDescriptorType         1

  bcdUSB               2.00

  bDeviceClass            2 Communications

  bDeviceSubClass         0 

  bDeviceProtocol         0 

  bMaxPacketSize0        64

  idVendor           0x0baf U.S. Robotics

  idProduct          0x0303 USR5637 56K Faxmodem

  bcdDevice            2.00

  iManufacturer           1 U.S.Robotics

  iProduct                2 USB Modem

  iSerial                10 0000002

  bNumConfigurations      1

  Configuration Descriptor:

    bLength                 9

    bDescriptorType         2

    wTotalLength       0x0043

    bNumInterfaces          2

    bConfigurationValue     2

    iConfiguration          0 

    bmAttributes         0x80

      (Bus Powered)

    MaxPower              360mA

    Interface Descriptor:

      bLength                 9

      bDescriptorType         4

      bInterfaceNumber        0

      bAlternateSetting       0

      bNumEndpoints           1

      bInterfaceClass         2 Communications

      bInterfaceSubClass      2 Abstract (modem)

      bInterfaceProtocol      1 AT-commands (v.25ter)

      iInterface              5 AltIf0

      CDC Header:

        bcdCDC               10.01

      CDC Call Management:

        bmCapabilities       0x03

          call management

          use DataInterface

        bDataInterface          1

      CDC Union:

        bMasterInterface        0

        bSlaveInterface         1 

      CDC ACM:

        bmCapabilities       0x06

          sends break

          line coding and serial state

      Endpoint Descriptor:

        bLength                 7

        bDescriptorType         5

        bEndpointAddress     0x82  EP 2 IN

        bmAttributes            3

          Transfer Type            Interrupt

          Synch Type               None

          Usage Type               Data

        wMaxPacketSize     0x0010  1x 16 bytes

        bInterval              10

    Interface Descriptor:

      bLength                 9

      bDescriptorType         4

      bInterfaceNumber        1

      bAlternateSetting       0

      bNumEndpoints           2

      bInterfaceClass        10 CDC Data

      bInterfaceSubClass      0 

      bInterfaceProtocol      0 

      iInterface              5 AltIf0

      Endpoint Descriptor:

        bLength                 7

        bDescriptorType         5

        bEndpointAddress     0x01  EP 1 OUT

        bmAttributes            2

          Transfer Type            Bulk

          Synch Type               None

          Usage Type               Data

        wMaxPacketSize     0x0200  1x 512 bytes

        bInterval               0

      Endpoint Descriptor:

        bLength                 7

        bDescriptorType         5

        bEndpointAddress     0x81  EP 1 IN

        bmAttributes            2

          Transfer Type            Bulk

          Synch Type               None

          Usage Type               Data

        wMaxPacketSize     0x0200  1x 512 bytes

        bInterval               0

Device Qualifier (for other device speed):

  bLength                10

  bDescriptorType         6

  bcdUSB               2.00

  bDeviceClass            2 Communications

  bDeviceSubClass         0 

  bDeviceProtocol         0 

  bMaxPacketSize0        64

  bNumConfigurations      1

can't get debug descriptor: Resource temporarily unavailable

Device Status:     0x0002

  (Bus Powered)

  Remote Wakeup Enabled

</pre>

h2. AT-commands

<pre>

ATI

5601

OK

ATI1

5588        

OK

ATI2

OK

ATI3

U.S. Robotics 56K FAX USB V1.2.23

OK

ATI4

 ----Option----- --Setting-- Cmd  ----Option----- --Setting-- --Cmd--

 Comm Standard   CCITT       B0   Answer Ring#    0            S0=000

 Command Echo    Enabled     E1   Escape Char     43           S2=043

 Speaker Volume  Medium      L2   CR Char         13           S3=013

 Speaker Control OnUntilCD   M1   LF Char         10           S4=010

 Result Codes    Enabled     Q0   BS Char         8            S5=008

 Dialer Type     Tone        T/P  Dial Pause      3 sec        S6=003

 Result Form     Text        V1   NoAns Timeout   60 sec       S7=060

 Extend Result   Enabled     X3   "," Pause       2 sec        S8=002

 DialTone Detect Disabled    X3   No CD Disc      2000 msec   S10=020

 BusyTone Detect Enabled     X3   DTMF Speed      95 msec     S11=095

 DCD Action      Std RS232   &C1  Esc GuardTime   1000 msec   S12=050

 DTR Action      Std RS232   &D2  Calling Tone    Enabled     S35=001

 V22b Guard Tone Disabled    &G0  Line Rate       33600       S37=000

 Flow Control    Hardware    &H1

 Error Control   V42,MNP,Bfr &M4

 Compression     44 42b MNP5 &K1

OK

ATI5

 ----Option----- --Setting-- Cmd  ----Option----- --Setting-- --Cmd--

 Comm Standard   CCITT       B0   Answer Ring#    0            S0=000

 Command Echo    Disabled    E0   Escape Char     43           S2=043

 Speaker Volume  Medium      L2   CR Char         13           S3=013

 Speaker Control OnUntilCD   M1   LF Char         10           S4=010

 Result Codes    Enabled     Q0   BS Char         8            S5=008

 Dialer Type     Tone        T/P  Dial Pause      3 sec        S6=003

 Result Form     Text        V1   NoAns Timeout   60 sec       S7=060

 Extend Result   Enabled     X4   "," Pause       2 sec        S8=002

 DialTone Detect Enabled     X4   No CD Disc      2000 msec   S10=020

 BusyTone Detect Enabled     X4   DTMF Speed      95 msec     S11=095

 DCD Action      Std RS232   &C1  Esc GuardTime   1000 msec   S12=050

 DTR Action      Std RS232   &D2  Calling Tone    Enabled     S35=001

 V22b Guard Tone Disabled    &G0  Line Rate       33600       S37=000

 Flow Control    Hardware    &H1  &Z0= 

 Error Control   V42,MNP,Bfr &M4  &Z1= 

 Compression     44 42b MNP5 &K1  &Z2= 

OK

ATI6

 U.S. Robotics 56K FAX USB Link Diagnostics...

 Blocks Sent                         0           

 Blocks Resent                       0           

 Blocks Received                     1           

 Blers                               0           

 Retrains Requested                  0           

 Retrains Granted                    0           

 Data Compression                    V42bis      

 Protocol                            LAPM/SREJ   

 Initial Transmit Speed              21600       

 Initial Receive  Speed              53333       

 Final   Transmit Speed              21600       

 Final   Receive  Speed              53333       

 Last Call                (hh:mm:ss) 00:00:00

 Disconnect Reason                   DCD,Clrdown

OK

ATI7

Configuration Profile...

Product Type           Germany USB 

Product ID:            USR805637

Options                V32bis,V.80,V.34+,V.90,V.92

Error Correction       MNP,V.42

Data Compression       MNP5,V.42bis,V.44

Fax Options            Class 1

Line Options           Caller ID

Flash Date             06/04/2012

Flash Rev              1.2.23

OK

ATI8

OK

ATI9

(01.00USR0BAF\\MODEM\PNP0303\U.S.Robotics V.92 USB Modem3D)

OK

ATI11

 U.S. Robotics 56K FAX USB Extended Link Diagnostics...

 Modulation                          V90         

 Receive Level                (-dBm) 15          

 Transmit Level               (-dBm) 12          

 Near Echo Loss               (-dBm) 0           

 Far  Echo Loss               (-dBm) 0           

 Round Trip Delay             (msec) 202         

 SNR                                 46          

 Speed Shifts Requested              0           

 Speed Shifts Granted                0           

 RBS Pattern                         00          

 Digital Pad Loss               (dB) 0           

OK

ATI92

Current V.92 Settings...

 +PQC=3 +PIG=1 +PMH=0 +PCW=2

Stored  V.92 Settings...

 +PQC=3 +PIG=1 +PMH=0

OK

ATD003012343001

CONNECT 53333/ARQ/V90/LAPM/V42BIS

</pre>

h2. Firmware

* attachment:USR5637_firmware_release_notes.txt

* attachment:USR5637_Linux_USRFlash_1.2.23.zip (includes a flash program for Linux)

* attachment:USR5637_Linux_USRFlash_1.2.19.zip

My modems came with the following firmware versions

<pre>

modem1

-------------------------------------

S/N: 2MCUX87K180

PRODUCT: 64-005637-00R

ATI3

U.S. Robotics 56K FAX USB V1.2.19

-------------------------------------

modem2

-------------------------------------

S/N: 2MCUX2OO0272

PRODUCT: 64-005637-00R

REN=0.2B

ATI3

U.S. Robotics 56K FAX USB V1.2.23

-------------------------------------

modem3

-------------------------------------

S/N: 2MCUX2OO279

PRODUCT: 64-005637-00R

ATI3

U.S. Robotics 56K FAX USB V1.2.23

-------------------------------------

</pre>