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Nortel Secure Router 8012
Hardware Description 4 Boards
Issue 5.3 (6 April 2009) Nortel Networks Inc. 4-29
When the router works in CT1 mode, the default setting is binding time slots as N x 56 kbit/s (N = 1 to
24).
4.8 Channelized E3 interface modules
There is one type of channelized E3 interface module: the 1-port channelized E3 module
(1CE3).
4.8.1 Functions
The channelized E3 interface module supports channelized E3 and unchannelized E3
operation modes. In channelized operating mode, the E1 channels can be configured with time
slot binding.
The channelized E3 interface module provides the following functions:
z
In E3 operating mode, it transmits and processes E3 high-speed data flows and provides
access to E3 data flows.
z
In CE3 operating mode, it provides N x 64 kbit/s (N = 1 to 31) low-speed access
services.
E3 means the thrice primary rate (34.368 Mbit/s) of E series in the time division multiplexing system.
One E3 channel can be channelized into 16 E1s. Each E1 supports both E1 and CE1 operating modes.
4.8.2 Front panel
Table 4-30 shows the appearance of the channelized E3 interface module.
Table 4-30 Description of the channelized E3 interface module
Name Appearance of the Front Panel
1CE3
Table 4-31 describes the indicators of the channelized E3 interface module.
Table 4-31 Description of the indicators of the channelized E3 interface module
LED Description
LINK OFF means the link is not connected and ON means the link is connected.
ACT OFF means no data is being transmitted or received on the interface and
blinking means data is being transmitted or received.