Table E-2. D&I Rom Maps - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Universal Satellite Modem
Therefore, in this case only the first six entries of the map would be relevant.
The Modem is equipped with eight permanently stored default maps, which are designated
ROM 1 through ROM 8. The user may also define, modify, and save an additional eight maps
which are designated USER 1 through USER 8.
IMPORTANT
ROM maps are read-only and may not be modified (see Table H-2).
# 1 2 3 4 5
1 1 1 1 1 1
2 1 2 1 2 1
3 1 2 3 4 1
4 1 2 3 4 5
5 1 2 3 4 5
6 1 2 3 4 5
7 1 2 3 4 5
8 1 2 3 4 5
Since the D&I Functions are separate and distinct, two separate maps must be configured at the
start of the D&I Multiplexer Operation. These are the Tx (transmit) Active Map for Drop Mapping
and the Rx (receive) Active Map for Insert Mapping. The number of entries in each map is
determined by the data rates selected. Each map entry consists of an IBS Time Slot assignment
and the Terrestrial (T1 or E1) Channel Number to which it is assigned. Drop Mapping and Insert
Mapping are completely separate and independent.
The map that is actually used for the Drop Function is the Tx Active Map; the map that is actually
used for the Insert function is the Rx Active Map. Two additional maps exist: the Tx Edit Map and
the Rx Edit Map. The Edit Maps are the buffer areas that are used when creating or modifying a
MN-DMD2050E Revision 2
Table E-2. D&I ROM Maps
T1/E1 Time Slot
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1 1 1 1 1 1 1 1
2 1 2 1 2 1 2 1
2 3 4 1 2 3 4 1
6 1 2 3 4 5 6 1
6 7 8 1 2 3 4 5
6 7 8 9 10 11 12 1
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
1 1 1 1 1 1 1 1
2 1 2 1 2 1 2 1
2 3 4 1 2 3 4 1
2 3 4 5 6 1 2 3
6 7 8 1 2 3 4 5
2 3 4 5 6 7 8 9 10 11 12 1
Efficient Drop and Insert
1 1 1 1 1 1 1 1
2 1 2 1 2 1 2 1
2 3 4 1 2 3 4 1
4 5 6 1 2 3 4 5
6 7 8 1 2 3 4 5
2 3 4 5
1
2
2
6
6
6
E–20