Metrodata MetroLAN-1000, Detailed Quick Start Manual

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QUICK START CONFIGURATION
12 76-02-059A
4 . 5. 2 Payload
The SDH framing structure is very flexible and can support many operating modes. The
payload selection menu is used to determine how the frame is structured. Payload
configuration is dependant upon the application. The payload configuration is split into two
sections:
The Main Payload offers the following options
Figure 4.5 Payload options
4 . 5. 3 Path Signal Label
The path signal label, C2 overhead byte, is used to indicate the type of payload carried on
this network. C2 must be set correctly otherwise alarm conditions will be reported by the
network. The value to configure depends upon the payload mode selected as below:
Main Payload Mode = VC-4 Path Signal Label = 1B ( GFP )
Main Payload Mode = TUG-3 Path Signal Label = 02 ( TUG Structure )
AU-4/VC-4 This mode will only support transport of a single LAN port since it
utilizes the entire 149Mbps payload
AU-4/TUG-3 This mode will support transport of LAN, E1/T1 and E3/DS-3
Note that if the main payload mode is AU-4/TUG-3 then a sub menu
is also displayed to select the mode of each of the three TUG-3
containers. The options are listed below:
VC-3 This mode is required to transport an E3/DS-3 or can be used for a
single LAN port with 45Mbps bandwidth.
VC-12 This mode is required to transport an E1/T1, or can be used to
transport LAN traffic.