Dialogic® Vision™ CX Video Gateway Administration ManualFine tuning the CX Video Gateway configuration
Specifying E1 trunk settings
Specify the following settings in the media board configuration file for a media board
that uses E1 trunks:
Keyword
Setting
NetworkInterface.T1E1[0..3].Impedance
For each trunk on the media board, specify the type of cable
connecting the board to the telephone network.
Valid values:
•
G703
_
75
_
OHM - (Default) For G.703-standard 75 ohm
cables.
•
G703
_
120
_
OHM - For G.703-standard 120 ohm cables.
Note:
For certain signal entry panels, set the media board
trunks to 120 ohm, even if you use 75 ohm lines. For more
information, see the
Dialogic® CG 6565 Media Board
Installation and Developer's Manual
.
NetworkInterface.T1E1[0..3].LineCode
For each trunk on the media board, optionally specify the
ones density maintenance method used on the trunk line to
maintain a clear channel transmission.
Valid values:
•
AMI
•
HDB3 (Default)
The following example shows the settings in a
board-
n
.cfg
file for the ISDN audio
and ISDN video models. Replace the bold default values, if necessary:
NetworkInterface.T1E1[0..7].Type = E1
NetworkInterface.T1E1[0..7].Impedance = G703_120_OHM
NetworkInterface.T1E1[0..7].LineCode = HDB3
NetworkInterface.T1E1[0..7].FrameType = CEPT
NetworkInterface.T1E1[0..7].CRCMFMode = C44ON
NetworkInterface.T1E1[0..7].SignalingType = PRI
NetworkInterface.T1E1[0..7].D
_
Channel = ISDN
MaxChannels = 512
Dialogic
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