For an E-QUE card in E1 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 will display the Clock Recovery and Codec setup screen.




















Clock RecoveryThe 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 4000 frame.  For other devices the clock source will need to be determined before configuration.  Select the correct configuration by clicking on the appropriate radio button.
CodecE-QUE cards configured as E1 Direct use two cables plugged into ports 1 (top) and 5 (bottom) for the E-QUE card to provide E1 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.(provides standard telephony 3Khz audio bandwidth)• G711 A-Law - uses an A-law algorithm to optimize the G711 codec (provides 7Khz audio bandwidth). This is often used in European systems.• G711 µ-Law - uses a µ-law algorithm to optimize the G711 codec (provides 7Khz audio bandwidth). This is often used in North America and Japan.
Click on the appropriate radio button to select the codecs for top and bottom cables.