TIWAY I Network Communication
3-4
S5 UniLink Adapter Installation and Operation
Local Line Interface Ports (continued)
Figure 3-3 is a chart showing the maximum cable distances compared to the
number of stations on the TIWAY I network.
30
25
20
15
10
8
5
4
3
2
1
6
7
10 50 100 250
Cable Unit Loading (Number of Stations)
19.2 k bps
38.4 k bps
57.6 k bps
115.2 k bps
115.2 k bps or lower
Belden 9860
Belden 9271
Cable Distance (1000’s of feet)
205
I003648
Figure 3-3 Number of Local Line Secondaries vs. Cable Distance
Signals are coupled between the transmission line and the transmit/receive
circuits to provide a level of rejection to normal AC power frequency
interference and other noise sources.
Information is transferred asynchronously on the TIWAY I twisted-pair
media at user-selectable data rates of 110, 150, 300, 600, 1200, 2400, 4800,
9600, 19.2K, 38.4K, 57.6K, and 115.2K bits per second, in half-duplex mode
and NRZI encoding.
NOTE: The Local Line interface does not support synchronous operation or
NRZ encoding.
Local Line Data
Transmission
Parameters
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