Verilink WANsuite 6450, Справочное руководство

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4-18 W A N s u i t e 6 4 5 0
NOTICE:
To set unit to Signaling mode, you must first configure the following: on
the CBR Configuration screen (page 4-17), configure Framing, on the
Channel Table Details screen (page 4-40),set “Rate” to 56k/SIG, and on
the CES Service Details screen (page 4-36), configure AAL1 Format.
T1/E1 Coding Sets the CBR interface line coding.
Values: HDB3, AMI, B8ZS
Default: HDB3
NOTICE:
For a T1 CBR Maintenance Reset, the default is T1 ESF. The T1/E1
coding default is B8ZS.
T1 PRM Lets you establish which performance messaging standard will be employed
to initiate Performance Report Message (PRM) functions. Setting this field to
“Enable” instructs the unit to use ANSI T1.403, which sends a PRM once
every second. Setting this field to “Disable” instructs the unit to use AT&T
TR54016, which provides performance reporting on request only.
Values: Disable, Enable
Default: Disable
T1 Zero Suppress Determines whether ones density insertion is activated after 15 zeros. This
parameter is ignored if the Coding parameter is set to “B8ZS.”
Values: Disable, Enable
Default: Disable
T1 Mode As a T1, the unit will operate in either long-haul or short-haul mode.
Values: Short-Haul, Long-Haul
Default: Short-Haul
T1/E1 Line Build Out Sets the transmit Line Build Out (LBO) for the CBR interface.
Values: 0,
−
7.5,
−
15.0,
−
22.5 dB
Default: 0 dB
T1 DSX Level Specifies the T1 DSX output level.
Values: 0
−
110, 111
−
220, 221
−
330, 331
−
440, 441
−
550, 551
−
660, >661 ft
Default: 0
−110
ft
E1 CRC4 Mode Provides line integrity detection to determine if bit errors are present on the
line.
Values: Disable, Enable
Default: Disable
Error Status and Alarm Thresholds Table
The unit can be programmed to generate an alarm condition based on a
specific level of performance degradation. The CBR screen presents a table
that provides current error status and alarm threshold information.