Verilink AS4000 (34-00244) Product Manual - Manual (Page 91)

Quad DS-1 Module
Verilink AS4000 User Manual 5-3
Viewing ESF
Statistics and
Registers
To view the ESF Statistics and Registers, select the Statistics menu
from the Quad DS-1 Main Menu:
Figure 5-3 ESF Statistics Menu
ESF Statistics The ESF statistics display provides information about T1 circuit
performance. This information is only available for a T1 circuit
which uses ESF framing. D4 T1 circuits offer no method of error
checking other than the rudimentary bipolar violation detection.
Network Loops This entry determines the T1 module’s ability to respond to diagnostic commands
received from the network supplier. Select Yes or Enable unless the commands are to
be passed to another T1 device that will respond.
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.
ESF Format This entry describes the types of ESF network commands that the DS-1 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 DS0s This selection determines whether the code transmitted over the unused DS0s is Idle
or Busy.
Port Status This field determines the status of the port. The status is In Service or Out of Service.
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