MultiTech MT9234ZPX PCI¶

• Table of contents
• MultiTech MT9234ZPX PCI
  • Hardware
  • PCI
  • AT-commands

PCI based V.92 Modem made by MultiTech.
This modem was also sold by IBM (FRU: 45D3866)

Website
https://www.multitech.com/models/91254010LF

Manual

• MultiTech_MT9234ZPX_PCI-datasheet.pdf
• MultiTech_MT9234ZPX_PCI-user_guide.pdf
• MultiTech_MT9234ZPX_PCI-AT-command-reference.pdf

Hardware¶

MultiTech Systems MT9234ZPX-UPCI-NVCD (NV = NonVoice)

Line Connector	RJ-11
Phone Connector	RJ-11

We can see here:

• Exar XR17D152 (PCI UART) XR17d152.pdf
• Agere L-OCM-F100 V92CC 1119T 7102509 (On Chip Modem)

Label

Model No: MT9234ZPX-UPCI
Serial: (S)15548636
DOM: 2011.08.25
B/O: - IBM
SKU# 91257221LF
IBM FRU: 45D3866
EC: J10914

PCI¶

07:00.0 Serial controller: Exar Corp. XR17C/D152 Dual PCI UART (rev 02) (prog-if 02 [16550])
        Subsystem: Device 2205:2026
        Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 19
        IOMMU group: 8
        Region 0: Memory at f7800000 (32-bit, non-prefetchable) [size=1K]
        Kernel driver in use: exar_serial

exar_serial 0000:07:00.0: enabling device (0100 -> 0102)
0000:07:00.0: ttyS4 at MMIO 0xf7800000 (irq = 19, base_baud = 921600) is a XR17D15X
0000:07:00.0: ttyS5 at MMIO 0xf7800200 (irq = 19, base_baud = 921600) is a XR17D15X

# serial driver (exar_serial)
zgrep CONFIG_SERIAL_8250_EXAR /proc/config.gz

AT-commands¶

minicom -D /dev/ttyS4 -b 115200

ATI0
Agere OCM V.92 MT9234ZPX-UPCI Internal Data/Fax Modem Version 1.02d

OK
ATI1
C468            

OK
ATI2
OK
ATI3
Agere OCM V.92 MT9234ZPX-UPCI Internal Data/Fax Modem Version 1.02d

OK
ATI4
18

OK
ATI5
OCM Ver3.9/1.7,0,34

OK
ATI6
Embedded Regulatory Approval Model: MT9234SMI

OK
ATI7
Standard Release

DP2SH mode-ei SERIAL DATA FAX+V34Fax+Class2+2.x+ECM Sphone

OK
ATI8
OK
ATI9
52

(01.00MTS0323\\MODEM\TIA0602,TIA0578\MultiTech Systems MT9234ZPX-UPCI-NVCD)

OK

ATI11

    Description                         Status
    ---------------                     ------------ 
    Last Connection                     V34             
    Initial Transmit Carrier Rate       31200           
    Initial Receive  Carrier Rate       31200           
    Final   Transmit Carrier Rate       31200           
    Final   Receive  Carrier Rate       31200           
    Protocol Negotiation Result         LAPM/SREJ       
    Data Compression Result             V42bis          
    Estimated Noise Level               46              
    Receive  Signal Power Level  (-dBm) 18              
    Transmit Signal Power Level  (-dBm) 12              
    Round Trip Delay             (msec) 198             
Press any key to continue; ESC to quit.

    Description                         Status
    ---------------                     ------------ 
    Near Echo Level              (-dBm) 21              
    Far  Echo Level              (-dBm) 71              
    Transmit Frame Count                0               
    Transmit Frame Error Count          0               
    Receive  Frame Count                1               
    Receive  Frame Error Count          0               
    Retrain by Local  Modem             0               
    Retrain by Remote Modem             0               
    Rate Renegotiation by Local Modem   0               
    Rate Renegotiation by Remote Modem  0               
    Call Termination Cause              1               
    Robbed-Bit Signaling                NA              
    Digital Loss                   (dB) NA              
    Remote Server ID                    NA              
    Last PCM S PTR                      EC9A            
    Connection Time              (msec) 43483           

OK
ATI12
OK
ATI13
OK