Follow-Up Procedures - ADTRAN MX2820 System Manual

MX2820 System Manual
15. From the T1/E1 Provisioning menu, select
Hairpin back the VT to the STS-1 signal for dropping farther down the SONET ring. The
VT Hairpin Loopback options are as follows:
• 1 - Disabled
• 2 - Enabled
16. From the T1/E1 Provisioning menu, select
Any VT can be cross-connect mapped to any available T1/E1 port. Selecting
(option ) will free the port and disable the VT. The default mapping is VT Group
29
Mapping.
The last option on this menu allows the setting of multiple VT cross connects. The default
mapping is GV Group Mapping. Sequential (1-to-1) mapping can be selected from this
screen.
17. From the T1/E1 Provisioning menu, select
When enabled, the VT AIS is transmitted toward the STS-1 during DS1/E1 LOS and LAIS
conditions (per GR-253). The default is
When disabled, VT AIS is never transmitted.
18. Press as required to return to the MX2820 Main Menu.
E
SC

FOLLOW-UP PROCEDURES

Once this procedure is complete, return to the procedure which called out this DLP and
continue with the tasks indicated.
7-168
VT H L
AIRPIN OOPBACK
C -C M
ROSS ONNECT APPING
VT AIS T
RANSMISSION
.
ENABLED
.
.
U
NEQUIPPED
.
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