Paradyne 3172 Operator's Manual page 96

ACCULINK 3172 and 3174 E1 DSU/CSU
DTE Interface Configuration
Options
DTE Port: Enab
Next Enab Disab Prev
DTE Drop/Insert Port. Enables the use of the DTE Drop/Insert port.
Enab – Allows the use of the DTE Drop/Insert interface.
Disab – Prohibits the use of the DTE Drop/Insert interface.
NOTE: When this configuration option is disabled, you cannot display or configure any other DTE Interface
configuration options and TS16 is set to data. If a clock source configuration option is set to DTE, it is changed
to NET.
DTE Frame: noCRC
Next CRC4 noCRC
DTE Line Framing Format. Designates the framing format for the DTE Drop/Insert interface.
CRC4 – Configures for the CRC4 framing format.
noCRC – Configures for the non-CRC4 framing format.
DTE Coding: HDB3
Next AMI HDB3 Prev
DTE Line Coding. Designates the line coding format to be used on the DTE Drop/Insert interface.
AMI – Uses the Alternate Mark Inversion coding format.
HDB3 – Uses the High Density Bipolar 3 coding format.
Extrn DLB: Disab
Next Enab Disab Prev
DTE Loopback on External Contact. Allows the initiation and termination of a DTE Loopback (DLB) by an external
contact. For more information, see the
Enab – Allows the E1 DSU/CSU to begin a DLB when the external contact is closed (if the current E1 DSU/CSU state
allows a DLB to be performed). If the E1 DSU/CSU is already performing a DLB, closing the contact will have no effect.
Opening the contact takes the E1 DSU/CSU out of DLB. The E1 DSU/CSU remains in DLB as long as the contact
remains closed.
Disab – Prevents the state of the external contact from affecting the operation of DLB.
Send Ones: Enab
Next Enab Disab Prev
Send All Ones on DTE Drop/Insert Failure. Specifies the action to take on the signal transmitted to the network when a
valid signal cannot be recovered from the DTE Drop/Insert interface (due to an LOS, OOF, or AIS condition).
Enab – Sends all ones on the DS0 channels allocated to the network interface when an LOS, AIS, or OOF condition
occurs on the DTE Drop/Insert interface.
Disab – Passes the data unchanged to the network interface channels.
C-2
Table C-1
DTE Interface Configuration Options
Prev
DTE Drop/Insert Interface section in Appendix D, Pin Assignments .
March 1999 3170-A2-GB20-30