Operating instructions

User Interfaces DMD20/DMD20 LBST Universal Satellite Modem
4-20 TM103 – Rev. 2.8
4.3.4 Interface Menu Options and Parameters
TX SETUP (menu)
CIRCUIT ID Allows the user entry of a Tx Circuit Identifier. Circuits
can be given up to an 11 Character alphanumeric
identity such as LINK1.
TERR INTERFACE STANDARD INTERFACE
{RS422 SERIAL,RS232 SERIAL, V.35}
OPTIONAL HARDWARE INTERFACES
{M2P PARALLEL, DVB PARALLEL, ASI}
{HSSI}
{ETHERNET 10/100 BASE-T}
{G.703: T1 AMI, T1 B8ZS, , E1 BAL, E1 UNBAL, T2
BAL, T2 UNBAL, E2}
Allows the user to select the Transmit Interface Type.
ETH FLOW CONTROL {Disabled, Enabled}
Allows the user to disable or enable flow control. Only
visible when Ethernet is selected as the interface type.
ETH DAISY CHAIN {Disabled, Enabled}
Allows the user to disable the Ethernet Port Daisy
Chaining. Only visible when Ethernet is selected as the
interface type.
ETH QOS 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.
ETH QOS QUEUE {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.
TX CLK SRC {SCTE, SCT, EXT CLK}
Allows the user to select the Transmit Clock Source.
TX CLK POL {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.