GatesAir Intraplex NetXpress, Installation And Operation Manual

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4—System Configuration and Operation Intraplex NetXpress IP Multiplexer
Version 3.05
GatesAir, Inc. 4-27
Intraplex Products
Figure 4-30. E1 Interfaces Table
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Interface: The available ports.
Last Status Change: The day, date, and time of the last state change on the designated port.
Line Status: The line operational state and error indications that the interface is sending and receiving, if
any.
Admin State: Whether the port is in or out of service.
Loopback Status: The local loopback mode for the selected interface. Shows when a loopback is
activated (yellow) or not (gray). If the port is not in service, or is in service with no active loopback, the
Loopback Status is None . Normal operating mode = None .
Desired Loopback: The local loopback mode configured for this port: Payload , Line , Equipment , or
None . Default = None .
Put port in service/out of service: Click to put the port in service. Click to take the port out of
service.
Configure: Click for a specific port to view configuration details and configure the port.
Circuit Identifier: This identifier is the name you specify to identify the E1 interface. The name can only
be changed while the interface is out of service.
Framing Type:
● Click CAS (Channel Associated Signaling) to enable the framing mode that is required for signaling
support of voice frequency (VF) TDM channel modules. In CAS framing mode channel of the E1, 16 is
reserved for voice channel signaling and is therefore not available for any payload data.
● Click CCS (Common Channel Signaling) framing type when support for voice frequency modules is
not required. In CCS framing all 31 channels are available for payload data.
CAS and CCS are each available with or without CRC (cyclical redundancy check). It is important to select
the
Framing Type that matches the hardware equipment connected to the E1 interface.
Line Coding:
● Click HDB3 (High Density Bipolar 3) for a modified bipolar line code in which strings of four zeros are
replaced by zero-substitution codes. HDB3 is the factory default line code.
● Click AMI (Alternate Mark Inversion) if you need to enable this legacy line coding. ( AMI cannot
support 64 kbps clear channel operation.)