Huawei EchoLife OT925-G User Manual page 58

EchoLife OT925-G
User Guide
Procedure
Click Advanced Setting > TDM Setting > TDM Impedance in the navigation tree to display
the configuration page.
Configure the Impedance option and keep it consistent with the impedance of the cable.
Click OK .
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Parameter Description
Parameters of the TDM Impedance page
Issue 02 (2007-08-30)
Parameter Parameter Description
Line ID E1 port number, mapping four E1 ports of the OT925-G.
Impedance Impedance of the E1 port.
E1 EXTR 120 Configure the E1 port impedance as 120 ohms. Use this
configuration when the E1 port adopts the twisted pairs.
E1 INTR 75 Configure the E1 port impedance as 75 ohms. Use this configuration
when the E1 port adopts the coaxial cable.
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