Verilink AS4000 (34-00244) Product Manual User Manual
Page 114
DS-3 Module
7-4
Verilink AS4000 User Manual
Figure 7-3 T1 Channel Configuration Menu
T1 Channel
Configuration
Menu
Most of the fields shown in
are described in the previous
pages. ESF format and Unused DS0’s are described below.
• ESF format - This entry describes the types of ESF network
commands that the T1 module responds to. It has no meaning
for D4 networks. With ESF networks this information must be
obtained from the network supplier. Choose between AT&T
Technical Reference 54016 and ANSI specification T1.403.
• Unused DS0’s - This selection determines whether the data
that is transmitted over the unused DS0s will be Idle or Busy.
Yellow Alarm
Yes causes the T1 module to discard data and send a Yellow Alarm if it is in a Red
Alarm condition for three seconds. Yes must be chosen if the network supplier is a
common carrier, such as a telephone company.
Format
This entry describes the types of ESF network commands that the T1 module will
respond to. It has no meaning for D4 networks. With ESF networks, this information
must be obtained from the network supplier. Choose between AT&T Technical
Reference 54016 and ANSI specification T1.403.
ICode
The Idle Code selection determines what condition the A and B signalling bits will be
forced to on an unused T1 line. Choose busy to send the A and B bits as ones and
mark the timeslots as unavailable for voice traffic (typical). Choose idle to leave the A
and B bits in a zero state, indicating btimeslots are available (usually unwise).
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..: N
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Yel
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rm: N
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