
SDA-5500/SDA-5510 Sweep Configuration: Using Both Headend Units
297
14
Fig. 14-20 A Second Method of Connecting the SDA-5500
for Forward and Reverse Sweep
The addition of the SDA-5510 to the Stealth sweep system takes the
responsibility for reverse sweep away from the SDA-5500, and serves to
speed both forward and reverse sweep rates. In addition, the SDA-5510
sends reverse ingress and noise information with every update of its forward
telemetry, so reverse telemetry need not be received to check the reverse
ingress condition.
To take full advantage the sweep speed increases in a system using both
units, be sure to disable the SDA-5500’s reverse sweep. Multi-user
contention can be eliminated by offsetting reverse channel plans, and by
using different telemetry frequencies.
The wiring configuration for a system using both units is shown in Figure 14-
21. Refer to Figure 14-12 for an example of a connection in a dual cable
network.
SDA-5500
USING BOTH HEADEND UNITS
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