IBM 3745 Series Instruction Manual

ÉÂÔ 3745 Communication Controller Models A
3746 Expansion Unit Model 900
3746 Nways Multiprotocol Controller Model 950
Service Processor
Installation and Maintenance
(Based on 6275)
Addendum
EC F70099
SY33-2125-01
These revised pages are intended to replace the equivalent pages in the current version of the Service
Processor Installation and Maintenance (Based on 6275) , SY33-2125-01. The pages affected are
pages: 1-25, 1-26, 5-17 and 5-18.

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Step 12. ____ Connect the 25-pin V.24 cable from the DTE to the 25-pin
connector on the modem rear panel. Fasten the connector retaining
screws.
Step 13. ____ Set the modem power switch to ON. Wait until the modem
operational message is displayed on the operator panel (about 15
seconds).
If the modem is connected to an asynchronous DTE which can send AT
commands to the modem, you can use the DTE to configure the modem
to match your communication system requirements. Otherwise, the
modem can be configured through the operator panel, refer to “Setting
the 7858 Connected to the COM1 Connector (ASYN)”
Note: Ten factory Redefined modem configurations are available. You
could retrieve the factory configuration which better matches your system
requirements, make any further configuration adjustment you should
require, and save your modem configuration in one of the ten user
configuration slots.
Step 14. ____ Now the modem is ready for operation. You can try it with your
system. If you observe a basic system problem, such as the DTE not
being able to send commands to the modem successfully, verify again
that your individual modem configuration parameters are matching your
system requirements.
If you have a problem because the dialing tone is not provided by
your PBX or exchange set the modem as follow:
¹Power OFF the modem
¹Power ON the modem while you are pushing the Enter key at the
same time. Release the Enter key when the message: DATAPUMP
TEST is displayed.
After this, the modem performs the dial through the switchboard without
looking for dial tone (Blind dial ATX1). Thios setting is maintained even if
the modem is powered OFF and ON again.
Step 15. ____If you have a problem while using the modem, see "Problem
Determination" chapter in the IBM 7858 Professional Modem Guide to
Operation , GA13-1981.
Setting the 7858 Connected to the COM1 Connector (ASYN)
1. ____ Power OFF the modem
2. ____ Press and hold the ↑ key while power ON the modem.
3. ____ The modem is set to Factory 0 in AT command mode.
Saving the Configuration of the 7858
If you want to save the configuration just defined, in order to have it loaded again at
the next modem reset, perform the following steps:
1. ____ Press the ↓ key until the "CONFIGURATIONS" message
displayed the top row.
2. ____ Press the → key until the "Store User Conf."
message displayed the bottom row.
3. ____ Press the ENTER key select the option.
Chapter 1. Installing and Setting Up Your Service Processor 1-25

4. ____ Pressing the ↑ key, select the User Configuration Location where the
current modem configuration must be saved (0 to 9).
5. ____ Press the ENTER key save the current modem configuration.
6. ____ The defined configuration now active and saved.
Now every time the modem is reset (power on), the last user configuration which
was saved is loaded as the current modem configuration.
Connecting the 7858
1. ____ Plug the cable (PN 782984) into slot 3 .1/ of the Service Processor. The
drawer and slide kit (PN 58G5698) are always shipped, but are not used if the
expansion frame is not installed.
2. ____ On the modem's rear panel, plug the other cable lead into the 25-pin
connector .2/.
132
Figure 1-23. Connecting the Service Processor (6275) from COM1 to the 7858
If you received a controller expansion, go to step 3 , otherwise go to “Step 5
- Customizing Your Service Processor” on page 1-33.
3. ____ Slide the 7858 in the controller expansion as shown in Figure 1-24.
Figure 1-24. Installing the 7858 in the Controller Expansion
Go to “Step 5 - Customizing Your Service Processor” on page 1-33 .
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 
Change Configuration Parameters
Adapters Mode | Plug and Play | Other Parameters
Select each mode for a detailed description
Adapter Modes
- Enhanced Modes
- Auto 16 Mode
- ISA 16 Mode
OK Cancel Help


8. Using the Up and Down keys select the ISA 16 Mode ( note that the response
time is very slow) then press simultaneously Alt and P keys to select the Plug
and Play window.
9. The following window is displayed.
 
Change Configuration Parameters
Adapters Mode | Plug and Play | Other Parameters
Make any Changes to the configuration, then select <OK>
- Plug and Play Automatic Configuration
- Manual (locked) Configuration for Plug and Play systems
- Manual Configuration for no Plug and Play (legacy) systems
OK Cancel Help


10. Select the Manual (locked) Configuration for Plug and Play systems, using
the tab key select Interrupt, and using the arrow key, select interrupt: .7/
11. Press simultaneously the Alt and R keys.
12. The following window is displayed.
 
Change Configuration Parameters
Remote IPL Data Rates
o Enable o 16 Mbps
o Disable o 4 Mbps
Auto Sense Bus Wide
o Enable o 16 Mbps
o Disable o 8 Mbps
OK Cancel Help


13. Using the Up, Down, and Tab keys select:
¹Remote IPL: Disable
Chapter 5. Service Processor FRU / Display Exchange 5-17

¹Data Rates: 16 Mbps
¹Auto Sense: Disable
¹Bus Wide: 16 bits
Select OK and press Enter.
14. The following window is displayed.
 
View Adapter Configuration
Configurable | Hardware
Select <Suggest> or <Change> to make changes to the configuration below
Then press <Store> to store these changes to the adapter.
Mode ISA 16 Adapter Plug and Play Manual (legacy)
Remote IPL: Disabled Interrupt: 7
Data Rate: 16 MBps I/O Address: A20-A23
Auto Sens Disabled ROM Address CA000-CBFFF
Bus Width 16 bits RAM Address C8000-C9FFF
Suggest Change Defaults Store
Done Cancel Help


15. Using the Up and Down keys select the Store, then press Enter.
16. The adapter configuration is stored. Wait until the following window is
displayed.
 
Storing Configuration
The adapter configuration settings that you have chosen are
now stored.
NOTE: Changes made to the adapter do not become effective
until your computer is powered OFF and back ON: A reboot
will not activate the changes.
OK


17. Press Enter.
18. The following window is displayed.
 
View Adapter Configuration
Configurable | Hardware
Select <Suggest> or <Change> to make changes to the configuration below
Then press <Store> to store these changes to the adapter.
Mode ISA 16 Adapter Plug and Play Manual (legacy)
Remote IPL: Disabled Interrupt: 7
Data Rate: 16 MBps I/O Address: A20-A23
Auto Sens Disabled ROM Address CA000-CBFFF
Bus Width 16 bits RAM Address C8000-C9FFF
Suggest Change Defaults Store
Done Cancel Help


19. If not selected, using the Tab key, select Done, then press Enter.
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