Moseley Associates Inc EVENTHD ユーザーズマニュアル
2. System Description
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© 2007 Moseley, Inc. All Rights Reserved.
602-14886-01, Rev. A
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Figure 2-10. 1+1 Protection in Diversity Mode
2.9.2.1 Frequency Diversity
In frequency diversity, two frequencies are used to achieve non-interference. The
proprietary framer chooses the best, or error-free, data stream and forwards it to the
Line Interface Units (LIUs).
Line Interface Units (LIUs).
2.9.2.2 Spatial Diversity
In spatial diversity, two non-interfering paths are used. The proprietary framer chooses
the best, or error-free, data stream and forwards it to the Line Interface Units (LIUs).
the best, or error-free, data stream and forwards it to the Line Interface Units (LIUs).
2.9.2.2.1 Single Transmitter
Protected Non-Diversity, or Hot Standby, is also referred to as Single Transmitter Spatial
Diversity. For more information on this mode, see Section 2.9.1.
2.9.2.2.2 Dual Transmitter
When using Dual Transmitter Spatial Diversity, two active transmitters are physically
isolated to avoid crosstalk.
isolated to avoid crosstalk.
2.101 + 1 Multi-hop Repeater Configuration
The Event HD supports a 1 + 1 multi-hop repeater configuration with drop/insert
capability as shown in Figure 2-11. This configuration provides individual 1 + 1 link
capability as shown in Figure 2-11. This configuration provides individual 1 + 1 link
protection as described in section 2.7, as well as the full-scale protection inherent in the
consecutive point architecture as described in section 2.6. At each location within the
consecutive point architecture as described in section 2.6. At each location within the
network, data may be dropped or inserted. In this configuration each SDIDU
TM
contains
two power supplies and two modems.
Figure 2-11. 1 + 1 Multi-Hop Repeater Configuration