Lucent DDM-2000 OC-3 User And Service Manual page 389

NTP-041
: System Turnup
Page 7 of 8
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
Figure 1 – Example of DDM-2000 OC-3/FT-2000 OC-48 Dual Ring Interworking
RT 2
MAIN 1 MAIN 2
OLIU OLIU
Ring 1
IN OUT
Ring 2
OUT
B
A
DS1, DS3, EC-1
CO 2
MAIN 2 MAIN 1
OLIU OLIU
OUT
IN
OUT
IN
A B C
OC-3
OLIU
RCVR TRMTR
TRMTR
RCVR
TRMTR/RCVR
Primary Node
FT-2000 OC-48 line switched ring
CO 1
Primary Node
TRMTR/RCVR
TRMTR
RCVR
TRMTR
RCVR
OLIU
OC-3
A B C
MAIN 1 MAIN 2
OLIU OLIU
IN
OUT
OUT
IN
RT 1
MAIN 2 MAIN 1
OLIU OLIU
Ring 2
IN
Ring 1
OUT
B
A
DS1, DS3, EC-1
Network
DDM-2000 OC-3 M
Issue 2, February 2000
Ring 1
Ring 2
IN
C
CO 4
MAIN 2 MAIN 1
OLIU
OLIU
OUT
IN
OUT
IN
A B C
OC-3
OLIU
RCVR
TRMTR
TRMTR
RCVR
TRMTR/RCVR
Secondary Node
CO 2
Secondary Node
TRMTR/RCVR
TRMTR
RCVR
TRMTR RCVR
OLIU
OC-3
A B C
MAIN 1 MAIN 2
OLIU OLIU
IN OUT
IN
OUT
Ring 2
OUT
Ring 1
IN
C
ULTIPLEXER
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