Switchback; Figure 5. Protect Operation; Figure 6. Switchover - ADTRAN 1xN Installation And Maintenance Manual

Figure 5 Figure 6

8. SWITCHBACK

Switchback Receive Path
Remote
CENTRAL OFFICE
< Live Traffic >
DCS
< Acknowledge
Switch Code >
TEST
CENTRAL OFFICE
DCS
< Live Traffic >
TEST
10
Office
Repeater
DSX-1 Bay
Office Repeater
or
HTU-C
Office Repeater
or
HTU-C
WECO D4
WESCOM 3192
PROTECT OPERATION

Figure 5. Protect Operation

Office
Repeater
DSX-1 Bay
Office Repeater
or
HTU-C
Office Repeater
or
HTU-C
WECO D4
WESCOM 3192

Figure 6. Switchover

Section 61190860L1-5, Issue 2
Local
< Live Traffic >
T1 / HDSL / HDSL2
Switch Codes >
T1 / HDSL / HDSL2
< Live Traffic >
SWITCHOVER
NOTE
CUSTOMER PREMISES
DTWA
NIU CIM
Main
Standby
CUSTOMER PREMISES
DTWA
NIU CIM
Main
Standby
61190860L1-5B
CPE
CPE