Verilink PRISM 3030 (34-00208.L) Product Manual - Manual (Page 72)

62 C HAPTER 4: T ERMINAL O PERATION
✦ When the remote communication is programmed to operate over the facility data
link (FDL), the following test conditions interrupt access to the far-end unit:
●
A remote network LLB is initiated.
●
A local LLB is activated on the near end.
If far-end communication is interrupted for any reason while accessing the remote
unit, exit and then reenter this screen to ensure that all the parameters have been
updated.
T1-DTE Framing
Selects the type of framing for the DTE side of the element. The choices are ESF
and D4.
T1-DTE Line Code
Sets the DTE side line coding. The choices are AMI and B8ZS.
T1-DTE DSX Level
Specifies the DTE line build out signal level. The choices are 0 –110 ft,
111– 220 ft, 221– 330 ft, 331–440 ft, 441–550 ft, 551– 660 ft, and > 660 ft.
D / I Start Channel
Selects the first channel in the block of channels assigned to the T1 DTE, from 1
through 24.
Setting
IDLE sets the specified channel to transmit idle code on the T1 DTE port and
ignore received data. THRU sets the specified channel to pass data from the T1
DTE port to the network and vice versa.
Signalling
The signalling option allows selection of Clear Channel or Robbed Bit signalling
for each DS0. Each DS0 is set to the Clear Channel (disable) mode. This setting
should not be changed for raw data channels. However, channels using Robed Bit
signalling ust be specified to enable proper handling of the signalling bits. T1-DTE
channels must be set to THRU to enable signalling.
In the Signalling Enabled row at the bottom of Figure 4-9 on page 60, an X indicates
that signalling is enabled for that channel.
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