Operating the Equipment Locally — ATM Network Interface Option Module Menu
Reference Guide: evolution 5000 E5780 and E5782 Encoder
Page 4-89
ST.RE.E10135.4
Selected Item
Options
Description
Valid Stream
Packet Status
bitrate
bitrate (Min)
bitrate (Max)
Lost Cells
Misinserted Cells
Corrected Packets
Uncorrected Packets
Length Errors
Crc Errors
Unknown Cells
These options are status only and cannot be changed.
4.10.15 Physical
Menu
Table 4.45: Physical Menu Options
Selected Item
Options
Description
SDH [Monomode]:
(M2/EOM2/ATMS155SM)
Synchronous Digital Hierarchy - the ITU-TSS International standard for
transmitting information over optical fibre.
SONET [Multi-mode]:
(M2/EOM2/ATMS155MM)
Synchronous Optical Network - an ANSI standard for transmitting information
over optical fibre.
G.823 ADM; G.751 PLCP
[E3]:
(M2/EOM2/ATMS34)
The physical layer is E3 using duplex BNC (coaxial) interface.
C-bit Parity; ADM M23; ADM
C-bit Parity; PLCP M23;
PLCP [DS3]:
(M2/EOM2ATMS45)
DS-3 is the third level in the PDH multiplex hierarchy found in North America.
Mode:
Match the setting to that of
the connected network,
normally set to SDH.
SDH; SONET [STM-1
Electrical Module]:
(M2/EOM2ATMS155E)
Synchronous multiplexing hierarchy, BNC (coaxial) interface. Rates of up to
155 Mbit/s.
Min: 0
Max: 255
Step Size: 1
The path label which identifies ATM cells.
The input must be set to the default value, 19.
Path Label:
The Path Signal Label is
transmitted in STM-1/STS-3c
frame
and identifies to the
Receiver that the
SONET/SDH frames are
carrying ATM cells.
This MUST be set to the default, which is 19. Do not change or the frames might not be recognised as carrying
ATM cells.
Recovered Rx clock
Use when connected to a switch.
Local Clock
Use when connected directly to another ATM card.
Tx Clock Source:
The physical layer clock
reference source used to
transmit the data on the
interface.
It is normally set to ‘Recovered Rx clock’ when connected to a switch but when connected directly to another
ATM card, one of the cards should be set to ‘Local Oscillator’.
Idle
Cell Mode:
Specifies how null cells are
flagged on the interface
Unassigned
Normally set to ‘Unassigned’ (default setting).
Interface
These options are status only and cannot be changed.
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