Coactive Aesthetics ROUTER-LL, User Manual

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The message buffer configurations for both sides of the ROUTER-LL 
should be the same.

ROUTER-LLs are delivered from the factory with their buffers configured 
as described in Appendix C: Factory Setting.

Special Note for LonBuilder Users

: LonBuilder simplifies the configura-

tion of message buffers into two user defined parameters: 

Packet 

Buffers

 and 

Size.

Size

 sets the size of the Input Network, Output 

Network, and Priority Output Network Buffers. 

Packet Buffers

 sets 

the Output Network Buffer count. The Input Network and Priority Out-
put Network Buffer counts are always set to 2.

Routing Algorithm

The ROUTER-LL can use one of four routing algorithms: configured router, 
learning router, bridge, or repeater. See the LonWorks Router User’s Guide for 
a complete discussion of the different algorithms. ROUTER-LLs are deliv-
ered from the factory configured as repeaters.

Installation

When a network services tool installs a router, it calculates the timing 
parameters for messages sent through that router. These parameters are 
calculated based on the communications parameters of the router’s trans-
ceivers. Unfortunately, the standard algorithm used by the network ser-
vices tool incorrectly calculates these timing parameters for the ROUTER-
LL (because of the propagation delay introduced by the IP network, the 
required values for the communications parameters are out of range for 
the algorithm). To correct for this problem, the ROUTER-LL requires a 
two-step installation process:

•

The first step installs communications parameters that allow the net-
work services tool to correctly calculate the message timing.

•

The second step installs communications parameters required to opti-
mize ROUTER-LL performance. This step is performed by the

RTR_CFG.EXE

 tool.

The procedure for installing a network that contains ROUTER-LLs is as 
follows:

•

Connect the ROUTER-LL to your LonWorks network using the RJ-45
LONTALK

 connector.

•

Install all nodes and routers as usual using a network services tool.
The preceding sections and the Appendices of this manual contain
detailed data and instructions that are specific to the ROUTER-LL.