Clear-Com HX System Frames - Manual (Page 108)

5.27.4 Card properties
For an E-QUE card in T1 Direct 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 5-14 E1 Direct Card Properties Clock Recovery
The data clock may be generated by the E-QUE card (Local Generated) or taken from the
T1 line. The clock source must be determined before configuration. Select the correct
configuration by clicking on the appropriate radio button.
5.27.5 Codec
E-QUE cards configured as T1 Direct use two cables plugged into ports 1 (top) and 5
(bottom) for the E-QUE card to provide T1 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 Codecs
available are:
• 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 on the appropriate radio button to select the codec for top and bottom cables.
5.28 E1 trunk
An E-QUE card set to E1 Trunk is used to connect Eclipse HX matrices using E1 trunking
protocol. The System Ports display shows two ports numbered 1 and 31.
Figure 5-15 E1 Trunk Ports
Port 1 represents 30 virtual ports 1 - 30 which are allocated automatically for
communications. Port 31 represents a further 30 virtual ports 31 - 60 that are automatically
allocated.
108 Eclipse EHX Software User Guide