參數(shù)資料
型號(hào)： XIB-E
廠商： Digi International/Maxstream
文件頁(yè)數(shù)： 38/64頁(yè)
文件大?。?/td> 1858K
描述： BOARD INTERFACE ETHERNET
標(biāo)準(zhǔn)包裝： 1
附件類(lèi)型： 接口板
適用于相關(guān)產(chǎn)品： XStream 和 Xcite 收音機(jī)
XStream"燨EM燫F燤odule?燩roduct燤anual爒5.x00燵2006.02.24]?/DIV>
4.2.2. Repeater Mode
Characteristics:   Self-organizing - No route configuration is necessary 
 
Self-healing / Fault-tolerant
Low power consumption and Minimized interference
Network throughput is determined by number of hops, not by number of
repeaters. Multiple repeaters within range of source node count as one hop.
Supports transparent multi-drop mode or addressed data filtering mode.
Duplicate RF packets are automatically filtered out.
All packets propagate to every node in the network (filtering rules apply).
Broadcast communications - each packet comes out every node exactly once.
Addressed communications - all radios see every packet. Only the module
with a matching address will forward it to the DO buffer (UART IN).
Data entering the network on any module is transmitted and forwarded
through every repeater module until it reaches the ends of the network.
 
Each repeater will repeat a packet only once.
Constraints: 
Requires that each module have a unique MY (Source Address) parameter.
System must introduce just one packet at a time to the network for
transmission (256 bytes max).
Each hop (H) decreases network throughput by a factor of 1/(H+1).
Additional repeaters add network redundancy without decreasing throughput.
Required Parameter Values (TX Module): MD = 3 or 4, MY = unique value (can be 
accomplished by issuing the AM (Auto-set MY) and WR (Write) commands to all modules in the
network)
Related Commands: Networking (MD, DT, MY, AM), Serial Interfacing (RN, PK, RO, RB) 
Recommended Use: Use in networks where intermediary nodes are needed to relay data to 
modules that are beyond the transmission range of the base module.
Theory of Operation
OEMs and integrators can extend the effective range and reliability of a data radio system by
forwarding traffic through one or more repeaters.
Instead of using routing tables and path discovery to establish dynamic paths through a network,
the repeater system uses a sophisticated algorithm to propagate each RF packet through the
entire network.
The network supports RF packets up to 256 bytes. The repeater network can operate using
broadcast or addressed communications for multi-drop networks and works well in many systems
with no special configuration.
When in Repeater Mode, the network repeats each message among all available nodes exactly
one time. This mechanism eliminates the need for configuring specific routes. The network is self-
organizing and self-healing so that the system is able to receive transmissions in the event of a
module going down.
Figure?05. Sample燫epeater燦etwork燭opology?/DIV>
 
 
 
 
 
 
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XIB-R 功能描述:界面模塊 RS-232/485 interface 24XStream 9XCite RoHS:否 制造商:4D Systems 產(chǎn)品:Serial Converters 通道/端口數(shù)量: 數(shù)據(jù)速率: 接口類(lèi)型:USB, UART 工作電源電壓:3.3 V, 5 V 最大工作溫度:
XIB-U 功能描述:界面模塊 USB interface board 24XStream 9XCite RoHS:否 制造商:4D Systems 產(chǎn)品:Serial Converters 通道/端口數(shù)量: 數(shù)據(jù)速率: 接口類(lèi)型:USB, UART 工作電源電壓:3.3 V, 5 V 最大工作溫度:
XIC25040 制造商:XIC 功能描述:25040 24HR '6
XILINXPWR-079 功能描述:電源管理IC開(kāi)發(fā)工具 Pow Mgt Eval Mod for Xilinx FPGAs RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
XILINXPWR-080 功能描述:電源管理IC開(kāi)發(fā)工具 Pow Mgt Eval Mod for Xilinx FPGAs RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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