CHAPTER 5: Application Notes
13
5. Application Notes
Figure 5-1. Typical IBM Application
For most applications (including the one shown in Figure 5-1) the following configuration
is recommended:
1. Select the appropriate baud rate for which the system is configured (modem clocking).
2. Since the modem eliminator is always connected, it is recommended to configure
the computer equipment for point to point, non-switched phone line (leased line).
3. The following strapping will work in most configurations including IBM System AS/400,
System 36, and System 38:
• CTS A = SW
• CTS Delay = 10 MS
• CTS B = SW
• CD Delay = 10 MS
• CD A = SW
• DSR A = Local
• CD B = SW
• DSR B = Local
Set all front panel pushbuttons in the OUT position.
NOTE
The IBM device parameters should be set for non-switched/leased line.
4. With DSR A and B configured “Remote”, the DSR A and B LEDs will indicate the opposite
ports DTR signal (generated by the connecting equipment). Therefore, if DSR A is not lit,
check the computer device connected to B and vice-versa. The connected device may not
be ready to communicate, may be configured incorrectly or may have a cable problem.
The SME-4M printed circuit card is made to be installed in the RM008 rack. The rack fits into a
standard 19" equipment rack and can hold up to 16 SME-4M printed circuit cards. The RM008
rack is available for either 115 VAC, 60 Hz or 230 VAC, 50 Hz power.
ASYNC 36
HOST
SME-4M
PORT A
PORT A
5294 OR 5251
MODEL 12
