DOCUMENT #..... 3081
MODELS......... CreditCard Ethernet+Modem 28.8 Adapter
OS............. Windows* 98
DRIVER......... CEM28XPS.SYS
LAPTOP......... Generic Not Machine Specific
DATE MODIFIED.. 05 August 1998

1. Open the System Editor (Start, Run, type SYSEDIT, and click OK).
   
2. Select the CONFIG.SYS file either by clicking on the CONFIG.SYS title bar or by selecting Window (on Toolbar) and then selecting CONFIG.SYS from the displayed list. 
   
3. Select Search from the Toolbar, click Find and type EMM386 in the dialog box, click Find Now. If found, change the EMM386 line to read as follows:
   -DEVICE=C:\WINDOWS\EMM386.EXE NOEMS
   
4. Select the SYSTEM.INI file either by clicking on the SYSTEM.INI Title Bar or by selecting Window from the Toolbar and selecting SYSTEM.INI from the displayed list.
   
5. Select Search from the Toolbar, click Find and type EMMEXECLUDE in the dialog box and click Find Now. If found modify the line to read as follows:
   -- EMMEXCLUDE=C000-CFFF
   -- On computers employing Cardbus controllers this line should read:
   -- EMMEXCLUDE=C000-CBFF (See Cardbus note in Section 3: Additional Notes)
   
   Only one EMMEXCLUDE statement should be present. If there are additional statements of this type they should be commented (placing a semi colon at the beginning of the line) or deleted. If the EMMEXCLUDE line is not present then add the above line to the (386Enh) section as follows:
   
   -- SYSTEM.INI: (386Enh) EMMEXCLUDE=C000-CFFF (use C000-CBFF on Cardbus computers)
   
6. Save all files and exit the System Editor.

1. Open Windows Explorer (Start, Programs, Windows Explorer ). Ensure that the Show all files option is selected (select View from the Toolbar, select Folder Options click the View tab and choose Show all files under the Hidden Files folder. Click Apply, then OK). 
   
2. Search for SXIR*.INF: Select Tools from the Toolbar Click Find
   
3. Choose Files or Folders In the Named: dialog box type SXIR*.INF In the Look in dialog box type C:\WINDOWS\INF
   
4. Select the Include subfolders box and click Find
   
5. Delete this file if present.

1. In the C:\WINDOW\/INF directory rename MDMGEN.INF to MDMGEN.ORI
   
2. Close Windows Explorer* and reboot your computer. You are now ready to install the Xircom multifunction adapter.

1. Start the computer WITHOUT the CEM28 adapter inserted. Allow Windows* 98 to boot fully.
   
2. Insert the CEM28 adapter into an available PCMCIA slot. Windows 98 should automatically detect the presence of the adapter and indicate that it has found new hardware, followed by a dialog box indicating that it is building a driver information database. Note: If Windows 98 does not detect the adapter upon insertion, proceed to Section 2 on Troubleshooting the CEM28 Installation.
   
3. The "Add New Hardware" window appears and begins the adapter installation using the driver and INF files included with Windows 98. The driver used is CEM28XPS.SYS (v1.07) dated 5-6-98. If later drivers are available continue to step 6 (using the Update Driver Wizard). Note: By default Windows 98 installs the Client for Microsoft* Networks and the TCP/IP protocol. If attaching to Novell* Network it will be necessary to install the Client for NetWare* Networks*. If using a protocol other than TCP/IP it is necessary that it be added (IPX/SPX compatible protocol for NetWare, NetBEUI used primarily for Microsoft Peer-to-Peer networks etc.).
   
4. Verify that the needed Network Client and protocols are installed. If the TCP/IP protocol is used and a DHCP server is unavailable from which to obtain an IP Address then an error will appear indicating that such a condition exists. To communicate on this network it is necessary to enter an IP Address, Subnet Mask and a default gateway address in the TCP/IP configuration window (Control Panel, Network icon, select TCP/IP protocol and click Properties). If you are unsure of these settings contact your Network Administrator. Note: By default the Microsoft Family Logon is selected as the Primary Network Logon option. With this option set any logon password can access the network through your connection. Change this option to the appropriate client logon.
   
5. Update Driver Wizard. Use the following steps to update the CEM28 driver using the latest available files from Xircom.
   • Open the Device Manager, expand the Multifunction adapter listing, select the Xircom entry, click Properties and select the Driver tab.
   • Click Update Driver, click Next, select the option to Display a list of all drivers in a specific location...., click Next, then click Have Disk...
   • The "Install From Disk" window appears, accept the default A: if using a floppy disk or type the path to these files then click OK.
   • The Update Device Driver Wizard returns the adapter driver and date. Click Next and the wizard identifies the Multifunction Parent device file A\\/MFCEM28.INF, click Next. The wizard copies the appropriate files and builds a driver information list. When Windows 98 is finished installing the driver click Finish.
   • Windows 98 returns to the Driver tab of the Multifunction adapter properties. Verify that the Network configuration window displays the proper client, adapter, protocol and services needed for your network.
     
6. Restart the computer so that the Xircom Country Select software can launch and scan the available COM ports for a Xircom modem. If the CEM28 modem is detected the Country Select window appears displaying the default country "United States". Click exit if this selection is appropriate. If a different country selection is desired select the desired country, click Save and then Exit.
   
7. The Registration program activates as soon as the Country Select software closes, click Cancel. This information can be completed at anytime by executing REG3.EXE from the XIRCO\\/XAPPS directory.
   
8. When the installation process has completed go to the Windows 98 Device Manager (Control Panel, System icon, Device Manager tab). The CreditCard Ethernet+Modem 28.8 adapter entries should be listed as follows:
   
   Modem: Modem of Xircom Ethernet+Modem (CEM28.8)
   
   Multifunction Adapters: Xircom CreditCard Ethernet+Modem 28.8 (Multifunction Parent Device)
   
   Network adapters: Network of Xircom CreditCard Ethernet+Modem 28.8
   
   Note: In some instances Windows 98 may locate the Multifunction Parent Device as a second entry in the Modem group, instead of placing it in the Multifunction adapters group, as follows:
   
   Modem: Modem of Xircom Ethernet+Modem (CEM28.8)
   -- Xircom CreditCard Ethernet+Modem 28.8 (Multifunction Parent Device)
   Network adapters:  Network of Xircom CreditCard Ethernet+Modem 28.8
   
   In these cases there may be no Multifunction adapters group listed. This is acceptable and will not affect the functionality of the adapter. The Multifunction Parent Device will behave exactly the same way regardless of the location of its entry in the Device Manager.
   
   Note: If any of these entries are preceded by a yellow exclamation point (!) or red "X" then an error condition exists. You may want to try reinstalling the CEM28.

1. Start the computer without the CEM28 present. If the computer is already running with the CEM28 present, perform a complete shutdown and remove the adapter. Then restart the computer and allow Windows 98 to boot fully.
2. In the Control Panel, double click the Modems icon. Remove all references to the CEM28 adapter by selecting each entry and clicking Remove.
3. In the Control Panel, double click the Network icon. Remove all references to the CEM28 adapter by selecting each entry and clicking Remove. When finished click Close. Choose No when prompted to restart the computer.
4. Delete the following files:
   
   -- WINDOWS\INF\DRVDATA.BIN
   -- WINDOWS\INF\DRVIDX.BIN
   -- WINDOWS\INF\MDMCM28.INF (original entry)
   -- WINDOWS\INF\MFCEM28.INF
   -- WINDOWS\INF\NETCEM28.INF
   -- WINDOWS\INF\OEM*.INF (only files pertaining to Xircom)
   -- WINDOWS\INF\OTHER*.INF (only files pertaining to Xircom
   -- WINDOWS\SYSTEM\CEM28.SYS
   
   
5. Using Windows Explorer, delete the following subdirectory tree:
   -- XIRCOM\XAPPS
   -- XIRCOM\CEM28

   Note: The WINDOWS\\INF directory is hidden by default. To view this directory open Windows Explorer, select View from the Toolbar, choose Folder Options from the menu and select the View tab and choose Show all files under the hidden files folder. Click Apply then OK to return to Explorer.

   Warning: The following step involves making modifications to the system Registry. The instructions here should be followed exactly, and you should read them through before beginning. Manually making incorrect modifications to the Registry could cause your system to malfunction. If you are unsure about working with the Registry, we recommend that you consult your Microsoft documentation for clarification regarding Registry terminology and use of the Registry editor. It is also recommended that you back up the Registry before proceeding.
   
   In the following registry path descriptions, HKLM refers to the  HKEY_LOCAL_MACHINE key.
   
   

6. Start the registry editor (Start, Run, type Regedit, and click OK). Remove from the registry:
   
   -HKLM\Enum\PCMCIA\Xircom-CreditCard_Ethernet+Modem_28.8...
   
   Click on the plus sign beside the following key in the registry path:
   
   -HKLM\System\CurrentControlSet\Services\Class\\Modem
   Under this key one or more numerical keys (000x) will be displayed. Click on each of these and view the contents of the right pane of the editor to determine if the key in question is making reference to the CEM28 adapter. If so, remove the key from the Registry. Perform this verification for each numerical key listed here.
   REMOVE ONLY THOSE KEYS THAT REFERENCE THE CEM28 ADAPTER.  In a similar manner, perform the same operation for any numerical keys listed under:
   
   - HKLM\System\CurrentControlSet\Services\Class\Multifunction
   - HKLM\System\CurrentControlSet\\Services\Class\Net
   
   Close the registry editor.
   
   
7. Shut down the computer and then restart it.
   
   
8. Open the Control Panel and double click the PC Card (PCMCIA) icon to ensure that the PCMCIA Wizard has run. If the PC Card Properties window indicates Empty Socket 1, Empty Socket 2 return to Section 1 CEM28 Adapter Installation. If the PCMCIA wizard appears accept the default answer No for each question and Yes to restart the computer.
   
   
9. Return to Section 1 and begin the installation.

1. Computers with Cardbus Controllers
   Many new laptop computers are now equipped with Cardbus PC Card slots. Cardbus is a relatively new 32-bit extension of the PCMCIA 16-bit interface standard. Cardbus slots support adapters designed specifically for Cardbus, as well as standard PCMCIA adapters such as the CEM28 adapter. However, in some ways Cardbus slots and their associated controllers behave differently than standard PCMCIA slots, and this can occasionally result in installation difficulties. The following items should be noted:a. PCMCIA controllers are listed in the Device Manager under the PCMCIA Socket group. Standard PCMCIA controllers will normally indicate one controller for the system (a common type is a PCIC or compatible PCMCIA controller). Cardbus controllers, on the other hand, will indicate a separate controller entry for each slot, so normally there will be two controller entries displayed. Common types of Cardbus controllers include the following:
   -- Toshiba* TOPIC* controller
   -- Texas Instruments* 1130* Series (1130, 1131, 1132)
   -- Texas Instruments* 1200* Series (1220, 1250)
   -- Cirrus Logic 6832*
2. Xircom recommends a SYSTEM.INI memory exclusion range of C000-CBFF with Cardbus controllers instead of the standard PCMCIA adapter range of C000-CFFF.
3. Computers with Cardbus capability frequently include Card and Socket Management software of some kind. While standard PCMCIA slots usually do not require this software in Windows 98, it often is necessary for Cardbus support. 
4. Disabling an infrared serial communications port. If your computer contains an infrared communications port as well as other additional hardware features, it may be necessary to disable the infrared port to free up an interrupt for the Xircom CEM28 adapter to use. If this is necessary, the device should be disabled both at the System BIOS level (if possible) and within Windows 98.To disable the port at the system BIOS level, you will need to enter the system BIOS menu or run the computer's BIOS setup utility program. Refer to your computer's documentation for complete information on disabling an infrared communications port.
   
   
5. To disable the port in Windows 98:
   
   
   • Go to the Device Manager (Control Panel, System, Device Manager).
     
   • Double click the Ports (COM and LPT) icon.
     
   • Double click the entry for the infrared communications port. At the bottom of the Properties window there will be a section entitled Device Usage.
     
   • Remove the check mark from the box Exists in this hardware profile and place a check mark in Disabled from all hardware profiles box.
     
   • Click OK. If you disabled the device in the current profile (usually this will be the case), a red 'X' should appear on the entry listed for the infrared device.
     
     
   If there are multiple infrared device listings we recommend that you disable all of them, at least until you have successfully installed the adapter.
   
   
6. Modifying Adapter Resources
   
   In a standard installation (even one that may exhibit an error condition) the resource values for the CEM28 adapter appear in the following format:
   
   -- Input/Output Range 02E8-02EF
   -- Input/Output Range 0120-013F
   -- Interrupt Request 10
   -- Memory Range 000D2000-000D2FFF
   -- Memory Range 000D4000-000D7FFF
   
   -- The value represented by the first Input/Output range identifies the I/O port addresses assigned to the modem side of the adapter (this value is discussed in greater detail under Troubleshooting the Modem Installation earlier in this document).
   - The value of the second Input/Output range represents the I/O port addresses assigned to the network adapter. These ranges seldom cause difficulties and the CEM28 installation is rarely affected by whatever range is assigned here as long as these locations reside somewhere in lower memory (commonly it will fall within the range of 0100h to 04FFh).
   -- The Interrupt Request values commonly used are 03, 05, 10, 11, and 15. However, with many new computers that include several value added hardware devices many of these (and in some cases all of these) interrupts are already in use before the adapter is inserted. Such as interrupt 03 which is traditionally assigned to COM2 and COM4 can be taken by a Serial IR device. Interrupt 05, traditionally assigned to LPT2 is often taken by the onboard sound card. Interrupts 10, 11, and 15 are regularly taken by devices such as a Digital Sound Processor, Docking Stations and SCSI devices. In order to free an interrupt for the CEM28 adapter it may be necessary to disable one of these devices. Section 4 Additional Notes covers the steps necessary to disable the more common devices.
   - Memory values can fall anywhere within the range 000C0000 to 000EFFFF, but the CEM28 is not the only device that uses memory segments in these ranges. Xircom recommends using the D-range (000D0000-000DFFFF) memory segment for best results. In some cases the adapter MUST be assigned to memory blocks in this range in order for the network portion of the adapter to function properly.
   
   As stated above, the characteristics that apply to the first Input/Output range are somewhat different than the rest. This range applies to the modem. The range specified will dictate which COM port the modem is assigned to, and this value cannot be changed directly. This Input/Output range can ONLY be altered by changing the setting listed in the 'Setting based on' box to a different 'Basic configuration'. Normally the associations are as follows
   
   -- Basic Configuration 0000 02E8-02EF COM4
   -- Basic Configuration 0001 03E8-03EF COM3
   -- Basic Configuration 0002 02F8-02FF COM2
   -- Basic Configuration 0003 03F8-03FF COM1
   -- Basic Configuration 0004 02E8-02EF COM4
   -- Basic Configuration 0005 03E8-03EF COM3
   -- Basic Configuration 0006 02F8-02FF COM2
   -- Basic Configuration 0007 03F8-03FF COM1
   
   The difference between the first group (0000-0003) and the second (0004-0007) is that on some computers, choosing the settings in the first group will prevent the other resource values (interrupt, memory, and the other Input/Output range) from being modified. Therefore, if you are making manual changes and you wish (for example) to use the modem on COM3, we recommend choosing basic configuration 0005.
   
7. Client to protocol association matrix.
   
   Client Type Protocol Type
   
   -- Client for Microsoft* Networks TCP/IP (default), NetBEUI, or IPX/SPX
   -- Client for NetWare* Networks IPX/SPX compatible protocol
   -- Novell* NetWare* Client32 IPX 32-bit Protocol for NetWare* Client 32
   -- IPX/SPX compatible protocol
   -- Other Client specific protocols or TCP/IP
   

This applies to:

XircomŽ CreditCard Ethernet+Modem 28.8 Adapter (CEM28, CEM-28)