Clear-Com HX System Frames - Manual (Page 109)

5.28.1 Port function
This is always set to E1 Trunk.
5.28.2 Label
Label for the E1 direct port used to assign the port to a path. The label has 10 characters,
or can be split into two parts, each of maximum five characters.
5.28.3 Description
Option port description up to 255 characters long.
5.28.4 Card properties
For an E-QUE card in E1 Trunk mode the Clock Recovery mode and Codec should be set
by clicking on the Card Properties link in the lower right of the hardware display. This
displays the Clock Recovery and Codec setup.
Figure 5-16 E1 Trunk Card Properties
5.28.5 Clock recovery
The data clock may be generated by the E-QUE card (Local Generated) or taken from the
E1 line. Normally the card should be set to ‘Line Recovery’ for connection to a third party
device or E1 network. For other devices the clock source must be determined before
configuration. Select the correct configuration by clicking on the appropriate radio button.
If connecting two Eclipse HX matrices back to back using E1:
• An E1 or T1 crossover cable is required.
• One E-QUE card should be set to Local Generated clock and the other to Line
Recovery clock.
5.28.6 Codec
E-QUE cards configured as E1 Trunk use two cables plugged into ports 1 (top) and 5
(bottom) for the E-QUE card to provide E1 trunk ports. The top cable (Top Half) provides
the first 30 ports (1-30) and the bottom cable (Bottom Half) provides the second 30 ports
(31 - 60). The top and bottom cables can be configured to use different Codecs.
The available Codecs comprise:
• G722 - standard G722 conversion and compression.
• G722 A-Law - uses an A-law algorithm to optimize the G722 codec. This is
often used in European systems.
• G722 µ-Law - uses a µ-law algorithm to optimize the G722 codec. This is often
used in North America and Japan.
Click the appropriate radio button to select the Codec for top and bottom cables.
109 Eclipse EHX Software User Guide