Delay For Mod; Delay For Demod; Locktimes; Figure 3-43 Hitless Switching Screen - Comtech EF Data Vipersat 564L User Manual

V i p e r s a t C o nf i g u r a t i o n
a means to coordinate timing and utilize buffering to eliminate these data
outages.
To access the Hitless Switching screen, enter H from the STDMA/SCPC Auto
Switching screen (see figure 3-38).
Figure 3-43 Hitless Switching screen
This screen will initially display all lock times as -1, indicating that Hitless
Switching is currently disabled. To enable the Hitless Switching feature, enter R
at the command prompt to restore default lock times.

Delay for Mod

This parameter allows the operator to insert additional delay to buffer more data
after modulator transmission is ceased. Enter M to modify this parameter.

Delay for Demod

This parameter allows the operator to insert additional delay to account for the
tuning of the demodulator. Enter D to modify this parameter.

LockTimes

LockTime settings for the four data rates displayed can be adjusted either up or
down, but default settings based on satellite testing should be used as a starting
point. These defaults are stored in each modulator/demodulator unit and are
restored by entering R at the command prompt.
Once restored, the lock time for each data rate can be modified by entering the
corresponding number.
V i p e r s a t C D D - 5 6 X S e r i e s U s e r G u i d e
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