Comtech EF Data C5 - Manual (Page 188)

Operation C5/K1/K3 Integrated Satellite Terminal System
4–62 Rev. 0
4.1.3.11.5 Utility Modem Type Functions
Refer to Figure 4-19.
UTILITY Displays single code/data rate modems only.
If CR/DR is blank, [ENTER] CR: ____ code and data rate one time.
If CR/DR is displayed, DR: _____ KB, then fixed code/data rate is shown.
MODEM TYPE Selects the following types of modem operation:
! CUSTOM
Allows user to make all selections from the Front Panel
menu
! EFD
Closed Network Operation
! ASYNC
Asynchronous operation
When the modem is changed from one type of operation to another, the
modem will be reset to the default configurations of the new modem type. The
RF-IF Output must be turned on to get the modem to lock. If the existing
modem type is the same as the type entered, the modem will not change any
parameters. If the modem type is changed to Custom, no parameters will be
changed. If the modem will not allow the modem type selection, that type of
operation may not be an available option. Select MODEM OPTIONS and
OVERHEAD OPTIONS to see which modem operations are allowed.
CAUTION
Use caution when modifying the Custom Type. This type accepts all changes
to the modem, including incompatible parameter changes. Only experienced
modem operators who are familiar with all of the controls should use
Custom type.
Note: Refer to Section 4.2.1 for additional modem type information.