3Com VCX V7122, Руководство пользователя, Страница: 224 / 488

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V7122 GatewayUser Guide
ini File Field Name
Web Parameter Name
Valid Range and Description
the Rx, CRC is sent in Tx, otherwise no CRC).
a = Double frame
c = Multiframe with CRC4
For T1
0 or D = Extended super frame with CRC6 (default)
1 or B = Super frame D4, F12 (12-Frame multiframe)
A = F4 (4-Frame multiframe)
C = Extended super frame without CRC6
F = J1 - Japan (ESF with CRC6 and JT)
FramingMethod_x
[Framing Method]
Same as the description for parameter ‘FramingMethod’ for a specific trunk
ID (x = 0 to 7).
TerminationSide
[ISDN Termination Side]
Selects the ISDN termination side. Applicable only to ISDN protocols.
0 = ISDN User Termination Side (TE) (default)
1 = ISDN Network Termination Side (NT)
Select ‘User Side’ when the PSTN or PBX side is configured as
‘Network side’, and vice-versa. If you don’t know the gateway
ISDN termination side, choose ‘User Side’ and see the ‘Status
& Diagnostics>Channel Status’ screen. If the D-channel alarm
is indicated, choose ‘Network Side’.
TerminationSide_x
[ISDN Termination Side]
Same as the description for parameter ‘TerminationSide’ for a specific trunk
ID (x = 0 to 7).
ClockMaster
[Clock Master]
Determines the Tx clock source of the E1/T1 line.
0 = Generate the clock according to the Rx of the E1/T1 line (default).
1 = Generate the clock according to the internal TDM bus.
For detailed information on configuring the gateway’s clock settings, see
Gateway Clock Settings .
The source of the internal TDM bus clock is determined by the
parameter TDMBusClockSource.
ClockMaster_x
[Clock Master]
Same as the description for parameter ‘ClockMaster’ for a specific trunk ID
(x = 0 to 7).
TDMBusClockSource
[TDM Bus Clock Source]
1 = Generate clock from local source (default).
4 = Recover clock from PSTN line.
For detailed information on configuring the gateway’s clock settings, see
V7122 Clock Settings .
TDMBusPSTNAutoClockE
nable
[TDM Bus PSTN Auto Clock]
0 = Recovers the clock from the E1/T1 line defined by the parameter
TDMBusLocalReference (default)
1 = Recovers the clock from any connected synchronized slave E1/T1 line. If
this trunk loses its synchronization, the gateway attempts to recover the
clock from the next trunk. Note that initially the gateway attempts to recover
the clock from the trunk defined by the parameter TDMBusLocalReference.
This parameter is relevant only if ‘TDMBusClockSource = 4’.
TDMBusLocalReference
[TDM Bus Local Reference]
0 to 7 (default = 0)
Physical Trunk ID from which the gateway recovers its clock. Applicable only
if ‘TDMBusClockSource = 4’ and ‘TDMBusPSTNAutoClockEnable = 0’