Vocality V100 Technical Manual page 68

Tributary in ECHO:
Data transmitted back
out of the port
Tributary in LOOP:
Data transmitted back
over the aggregate
The V100 operates by sending packets from tributaries to their corresponding port using a route, which is
looked up based on the destination in the packet header. This is usually via an aggregate port but could
be via a dial-up ISDN link or a connection using the HSC. In any case, the route a packet takes out of the
multiplexer may be indirect, going via another unit to reach the final destination. Aggregate ports
therefore use routing information only and do not need a destination to be specified in the menu; the
destination field should be left blank. The only exceptions to this are SWITCHED or SCADA modes,
which are specified by entering the keyword in the destination field.
Tributary ports however are the end points of all connections and so, the port address of the final
destination must be specified by all tributaries. This is true of both point-to-point connections and
broadcast connections, which are discussed more fully in the context of the voice menus in section 3.4.5.
The parameters and options for the DATA menu are shown in the following table:
V100 Versatile Multiplexer Technical Manual Version 2.2
Page 68 of 231
C H A P T E R 3 C O N F I G U R I N G
Aggregate in LOOP:
Data transmitted back out of all tributaries
Aggregate in ECHO:
All data transmitted back over the aggregate
V 1 0 0