Satel SATELLINE-EASy Podręcznik Użytkownika Pobierz pdf (Strona 84)

SATELLINE-EASy Pro

User Guide v.1.5

11.2 Operating modes of Message Routing

The Message Routing has two different operating modes:

 Source Mode Routing

 Virtual Mode Routing

The most important differences between the two modes are shown in the table below.

Property

Source Mode Routing

Virtual Mode Routing

Summary

Slower, more functions

Faster, less functions

Radio interference tolerance

Yes, overhop function

Support for mobile stations

Yes

Addition of substations to a

network

Only master station needs to be

reconfigured

Master station and consecutive

repeaters need to be

reconfigured

Changing routes

Only master station needs to be

reconfigured

All radio modems need to be

reconfigured

Maximum length of route

13 hops

No limit

Overhop function

Yes

Network ID

Yes

Storing of routing information

Centralised

Dispersed

Message Routing overhead

(bytes)

10+2*number of hops

Maximum length of user protocol

message (bytes)

1kB – Message Routing overhead

1kB – Message Routing

overhead

Other issues common to the both modes:

 The maximum number of terminals depends on the radio network structure and the

number of routes.

 Multiple terminal addresses may be attached to a radio modem.

 The maximum length of a terminal address (in the user's protocol) is four bytes (FFFFFFFF

in hexadecimal).

 The maximum length of the address of a radio modem is two bytes (FFFF in hexadecimal).

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 103 104

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