GatesAir Intraplex DS-64NC, Инструкция по установке и эксплуатации

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DS-64NC Synchronous Data Module 2 – Functional Description
Version 9.1
2-12 GatesAir
Intraplex Products
2.7.5 Transmit Mode Selection
The transmit side of the DS-64NC module can be configured in four ways. Table 2-8 shows these
options and their respective switch settings.
Table 2-8. Transmit Settings – S3, Positions 7 & 8
S3/7 Setting S3/8 Setting Description
UP UP Transmit side off at all times
UP DOWN Transmit side operates only when CS (Clear-to-Send) is asserted (polling
mode)
DOWN UP Transmit side operates at all times; RS/CS (Request-to-Send/CS)
handshake is operational
DOWN DOWN Transmit side operates at all times; CS (Clear-to-Send) forced on
2.7.6 Data Rate Selection
The Data Rate switch bank (S4) settings determine the data rate for the module. Setting each switch
down adds a set amount to the total data rate (Figure 2-5). These amounts are cumulative, allowing
the total data rate to be set to any increment of 8 kbps up to the maximum payload capacity of the
multiplexer.
1 2 3 4 5 6 7 8 9 10
OPEN
Not used:
Leave these two switches
8
kbps
32
kbps
128
kbps
512
kbps
16
kbps
64
kbps
256
kbps
1024
kbps
S4
Figure 2-5. Data Rate Increments – Switch Bank S4
Table 2-9 gives some examples of common data rate settings, with the number of time slots these
rates occupy at 64 and 56 kbps per slot. Appendix B contains a table of switch settings and time slot
usage for all of the available data rates for this module.
Table 2-9. Data Rate Setting Examples – S4
Data
Rate
(kbps)
S4, Positions 1-10 Settings:
0 = UP, 1 = DOWN
# of Time Slots
Occupied at Rate
1 2 3 4 5 6 7 8 9 10
64 kbps
per slot
56 kbps
per slot
8 0 0 0 0 0 0 0 1 0 0 1 1
64 0 0 0 0 1 0 0 0 0 0 1 5
128 0 0 0 1 0 0 0 0 0 0 2 3
256 0 0 1 0 0 0 0 0 0 0 4 5
384 0 0 1 1 0 0 0 0 0 0 6 7
512 0 1 0 0 0 0 0 0 0 0 8 10
768 0 1 1 0 0 0 0 0 0 0 12 14