Comtech EF Data SDM-300L3 - Manual (Page 100)

SDM-300L3 Satellite Modem Revision 1
Front Panel Operation MN/SDM300L3.IOM
4–32
FUNCTION SELECT: CONFIGURATION: INTERFACE:
BUFFER SIZE (CONDITIONAL)
IMPORTANT
Conditional: The Bits or Milliseconds menu is displayed depending
upon whether Bits or Milliseconds is selected under the Utility:
Interface Buffer Program menu.
BUFFER SIZE
384 BITS
BUFFER SIZE
6 MILLI SECONDS
Sets the size of the buffer in either Bits or Milliseconds..
Upon entry, the current buffer length is displayed. Press [
↑ ] or [ ↓ ] to select the desired
buffer size. The buffer size is displayed in seconds or bits. Enter the Utility Interface
menu to change the buffer units to seconds or bits.
• If selecting seconds, choose from 1 to 99 ms, in increments of 1 ms ≤ 2.6 Mbps
or 0 (Bypass).
• If selecting bits, choose from 32 to 262144 bits, in increments of 16 bits.
• Press [ENTER] to execute the change.
When D&I is selected for modem type, the buffer units are automatically set to ms. The
user may select as follows:
• nn = 7.5, 15, or 30 ms for E1CAS format.
• nn = 6, 12, 24, or 30 ms for T1IBS/T1S/T1ESFS format.
• nn = 1, 2, 4, 8, 16, or 32 ms for all other D&I formats.
Note: To have the modem calculate the plesiochronous shift, set the buffer units to ms.
When a specific buffer depth is desired, set the buffer units to bits. Select bits or ms from
the Utility: Interface menu.