Avaya 03-300430 User Manual

Line Coding

Administer the line coding for the DS1 facility. For the TN574 board and the 
TN1654 board in T1 mode, the field may be set to ami-zcs or b8zs. If the 

TN1654 board is set for E1 operation, the line coding may be set to either 
ami-basic or hdb3. The line coding must be the same at each end of the 

DS1 converter complex.

Framing Mode

esf or d4 for the DS1 facility. The same framing mode must be used at 

each end of the DS1 converter complex.
For TN574 DS1 converter boards, this is administrable.
For TN1654 DS1 converter boards, this field is display only. The TN1654 
has option switches located on the component side of the circuit pack. If T1 
operation is selected via the first switch, four additional switches are used to 
select the framing mode for each facility. Each facility can be set to either 
D4 or ESF framing. The Framing Mode field will display what the switch is 

set to for the DS1 facility.
Framing Mode is applicable only to T1 operation. This field does not appear 
on the fiber-link screen if the TN1654 DS1 converter is administered for a 
bit rate of 2.048 Mbps.

Line 

Termination

Display only, shows the line termination for the DS1 facility on the TN1654 
DS1 Converter circuit pack. 
The TN1654 has option switches located on the component side of the 
circuit pack. If E1 operation is selected via the first switch, four additional 
switches are used to select the line termination for each facility. Each facility 
can be set to either CEPT 75 ohm coaxial or 120 ohm CEPT twisted pair. 
This line termination field will display what the switch is set to for the DS1 
facility.
Line Termination is applicable only to E1 operation. This field does not 
appear on the fiber-link screen if the TN1654 DS1 converter is administered 
for a bit rate of 1.544 Mbps

Facility Circuit 

ID

Specify a unique alpha-numeric name for each DS1 facility. This field 
appears for each facility when Facility Installed is y.

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