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If E1 module of the low firewall can set impedance

Publication Date:  2012-09-24 Views:  36 Downloads:  0
Issue Description
Q: If E1 module of the low firewall can set impedance
Alarm Information
None.
Handling Process
A:The 1E1,1cE1,2E1,2cE1 of low firewall’s E1 module can transform impedance,it need set the impedance by dual in-line package switch on the card  to 75 ohm or 120 ohm ,the high density E1 module such as 4E1,4cE1,8E1,8cE1 can only support 75 ohm ,not support 120 ohm,if it need transform impedance ,it need configure other impedance adapter. 
Root Cause
None.
Suggestions
None.

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