CL-MC-XE1-IP-Y Series (1/2/4 E1) User Manual
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3-4
Loopback Mode
The CL-MC-XE1-IP-Y provides two types of loopback: “E1 Remote Loopback” and “E1 Local Loopback”.
(Please refer to Figure 3-4.1).
Figure 3-4.1 CL-MC-XE1-IP-Y E1 Loopback Mode
3-5
IP Configuration
The IP address, subnet mask, and default gateway address can be setup through RS232/Telnet or via
management tools.
3-6
Interface Configuration
LAN Ethernet port provides the bandwidth control. This feature allows users to limit the data rate from
LAN to WAN port. Implementing this feature is to ensure the quality of service in TDM circuits. For
different applications, there are 16 different bandwidth options available for users to choose (50K, 100K,
150K, 200K, 250K, 300K, 350K, 400K, 800K, 1.6M, 3.2M, 6.4M, 12.8M, 25.6M, 51.2M and 100M). In
addition, setting a 100Mbps bandwidth option is to only utilize the rest of the available bandwidth of
100Mbps minus the bandwidth being reserved for all E1 traffic.
As to E1 interface, the LEDs will be lit after enabling the E1 channel and user can map to the remote
different E1 channel for flexible selection. Jitter Buffer is also used to minimize packet delay variations
between two devices, including 8 available options of 11, 23, 40, 75, 99, 145, 192 and 239 ms based on
the standard Ethernet frame size of 1518 bytes.
3-7
Fault Report
E1 active alarms can be displayed by executing a CLI command “almall”. This information is useful for a
technical support personnel who performs diagnostic tasks. The alarms are interpreted as follows:
E1LOS:
Loss of receiving signal of E1 from the upstream equipment connected to the E1 port.
E1AIS:
AIS (Alarm Indication Signal, a message consisting of all "1"s) signal received from the
upstream equipment connected to the E1 port.
PWLBIT:
E1 LOS or AIS alarm has been raised at the remote E1 port
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