User`s guide

Configuring the WAN Interfaces
Configuring E1 lines
MultiVoice Gateway for the MAX— User’s Guide Preliminary November 23, 1998 5-13
Contact the carrier for more details. For ISDN, these settings are not applicable.
Clock source for synchronous transmission
Clock source determines whether the E1 line can be used as the master clock source for
synchronous connections. In synchronous transmission, both the sending device and the
receiving device must maintain synchronization in order to determine where one block of data
ends and the next begins.
Understanding the channel configuration parameters
This section provides background information about the E1 channel configuration parameters.
(For complete information, see the MAX Reference Guide.)
Specifying how to use the channel
For each of the 32 channels of an E1 line, the Ch N parameter specifies how the channel is
used. Select one of the following values:
• Switched—The default. Supports switched connections. It can be robbed-bit or a B
channel, depending on the line’s signal mode.
• Nailed—a clear-channel 64k circuit.
• D channel—The channel used for ISDN D channel signalling. Assigned automatically to
channel number 16 when ISDN signalling is in use.
• Unused—Unavailable for use.
Phone number assignments
Ch N # is the add-on number associated with each switched channel.
Examples of E1 configuration
This section provides examples of configuring E1 lines for ISDN signalling, for DPNSS
signalling, and for nailed connections.
Using ISDN signalling
To configure an E1 PRI line for ISDN signalling in Belgium, the Netherlands, Switzerland,
Sweden, Denmark, or Singapore:
1 Open Net/E1 > Line Config > Line 1 and specify ISDN signalling:
Net/E1
Line Config
Line 1...
Sig Mode=ISDN
2 Set the Switch Type parameter to Net 5 (the standard used in these countries):
Switch Type=Net 5
3 Specify Framing Mode.
Framing Mode=2DS