Comtech EF Data DMD50 Installation And Operation Manual page 101

DMD50 Universal Satellite Modem
ETH FLOW CONTROL
ETH DAISY CHAIN
ETH QOS TYPE
ETH QOS QUEUE
TX CLK SRC
TX CLK POL
SCT CLK SRC
DROP & INSERT (menu)
DROP MODE
MAP COPY
MN-DMD50– Revision 3
{Disabled, Enabled}
Allows the user to disable or enable flow control. Only visible
when Ethernet is selected as the interface type.
{Disabled, Enabled}
Allows the user to disable the Ethernet Port Daisy Chaining.
Only visible when Ethernet is selected as the interface type.
{NORMAL, PORT BASED}
Selects the priority hierarchy of processing an IEEE 803.3ac
Tag, Ipv4 Type of Service Field / Differentiated Services Field,
or Ipv6 Traffic Class Field. The Port Based priority overrides
any standard priority. When operating in this mode, (JS1) has the
highest priority and
(JS4) has the lowest.
{FAIR WEIGHTED, STRICT PRIORITY}
Selects the queue weighting of 8,4,2,1 that insures even the
lowest priority traffic gets some bandwidth. Strict Priority
insures that the higher priority traffic will always be transmitted
before any lower priority traffic. With this setting, the lower
priority traffic can starve.
{SCTE, SCT, EXT CLK}
Allows the user to select the Transmit Clock Source.
{AUTO, NORMAL, INVERTED}
Allows the user to select the Clock Polarity for the Tx Terrestrial
Clock relative to the Tx Data. "Auto" detects wrong polarity and
automatically corrects. If G.703 Interface is selected, this
selection cannot be changed.
{SCT, SCR}
Allows the user to select SCT Source.SCT is the internally
generated SCT clock. SCR is the Rx Satellite clock. SCR us used
for loop timing.
(Reference Section 3.13, "Drop and Insert Mapping" in this
manual)
{NONE, T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31,
PCM-31C, T1-D4-S, T1-ESF-S.}
Drop mode may only be changed from none when the drop and
insert specification is in use.
{SRC Map Dest Map}
User Interfaces
4–17