2 – Functional Description
DS-64NC Synchronous Data Module
Version 9.1
GatesAir
2-9
Intraplex Products
Table 2-3. Card Address Setting – S1
Card
Address
Switch Settings:*
S1, Positions
1 2 3 4 5 6
Card
Address
Switch Settings:*
S1, Positions
1 2 3 4 5 6
1
0 0 0 0 0 1
19
0 1 0 0 1 1
2
0 0 0 0 1 0
20
0 1 0 1 0 0
3
0 0 0 0 1 1
21
0 1 0 1 0 1
4
0 0 0 1 0 0
22
0 1 0 1 1 0
5
0 0 0 1 0 1
23
0 1 0 1 1 1
6
0 0 0 1 1 0
24
0 1 1 0 0 0
7
0 0 0 1 1 1
25
0 1 1 0 0 1
8
0 0 1 0 0 0
26
0 1 1 0 1 0
9
0 0 1 0 0 1
27
0 1 1 0 1 1
10
0 0 1 0 1 0
28
0 1 1 1 0 0
11
0 0 1 0 1 1
29
0 1 1 1 0 1
12
0 0 1 1 0 0
30
0 1 1 1 1 0
13
0 0 1 1 0 1
31
0 1 1 1 1 1
14
0 0 1 1 1 0
32
1 0 0 0 0 0
15
0 0 1 1 1 1
33
1 0 0 0 0 1
16
0 1 0 0 0 0
34
1 0 0 0 1 0
17
0 1 0 0 0 1
35
1 0 0 0 1 1
18
0 1 0 0 1 0
36
1 0 0 1 0 0
* 0=OFF; 1=ON
2.7.2
Starting Time Slot Selection
The DS-64NC module occupies one or more time slots of the multiplexer’s aggregate signal,
depending on the data rate selected. Select any time slot as the starting position; data is then placed
into the required number of time slots, using either sequential or alternate time slots, as selected.
For example, suppose the data rate for the module 448 kbps (7 x 64 kbps time slots), and the starting
time slot is set to 10. If usage is set to sequential, data occupies time slots 10, 11, 12, 13, 14, 15,
and 16; if usage is set to alternate, data occupies time slots 10, 12, 14, 16, 18, 20, and 22.
Tables 2-4 and 2-5 show the switch settings for selecting the starting time slot when this module is in
use in a T1-based or 2 MB-based multiplexer, respectively. In a T1 system, the time slots are
numbered from 1 to 24, and all are available for payload; in a 2 MB system, they are numbered from
0 to 31, with time slot 0 always reserved for framing and time slot 16 also reserved if the system is
configured for CAS multi-frame.
Time slot assignment does not wrap around back to the beginning (Time slot 1). Selecting a starting
time slot does not allow enough room for all necessary time slots within the limit of the transmission
link is a configuration error. The module then reports an Alert condition and does not go into service.
Summary of Contents for Intraplex DS-64NC
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