363-206-295
Administration and Provisioning
Issue 1
December 1997
8-37
Figure 8-6.
Example Dual Homed OC-3/OC-12 Ring (0x1) Cross-Connections with
Intermediate Node
IN
OUT
OC-12
DDM-2000 OC-12 Ring
Node 6
NS
MAIN B1
23G/23G-U
OLIU
MAIN B2(P)
23G/23G-U
OLIU
A
B
C
C
B
1
2(P)
2(P)
A
D
D
1
2(P)
TSI
US
NS
DDM-2000 OC-12
Node 5
MAIN B1
23G/23G-U
OLIU
MAIN B2(P)
23G/23G-U
OLIU
A
B
C
21G-U
OLIU
C
B
1
1
2(P)
2(P)
A
D
D
1
2(P)
TSI
US
NS
DDM-2000 OC-12
MAIN 1
MAIN 2
A
B
C
C
B
1
2(P)
A
1
DDM-2000 OC-3
US
NS
2(P)
TSI
Node 4
MAIN B1
23G/23G-U
OLIU
MAIN B2(P)
23G/23G-U
OLIU
A
B
C
21G-U
OLIU
C
B
1
2(P)
2(P)
2(P)
A
D
D
1
2(P)
TSI
US
NS
DDM-2000 OC-12
IN
OUT
IN
OUT
m-1
m-2
m-3
.
.
m-12
m-1
m-2
m-3
.
.
m-12
m-1
m-2
m-3
.
.
m-12
m-1
m-2
m-3
.
.
m-12
m-1-2-1 to b-2-1
where:
b-2-1 = address of DS1 port 1, circuit pack #2,
in group FN-B
m-1-2-1 = address of VT#1, VTG #2, STS #1
in MAIN OLIUs.
DS1
mb-1 to b-1
(ent-crs-sts1:mb-1,b-1)
where:
mb-1 = address of STS#1 in MAIN B OLIU
b-1 = address of STS #1 in group B OLIU
1
1
mb-1 to b-1
(ent-crs-sts1:mb-1,b-1)
where:
mb-1 = address of STS#1 in MAIN B OLIU
b-1 = address of STS #1 in group B OLIU
21G-U
OLIU
mb-1 to b-2
(ent-crs-sts1:mb-1,b-2)
where:
mb-1 = address of STS#1 in MAIN B OLIU
3STS1E
3STS1E
MXRVO
MXRVO
3STS1E circuit pack
b-2 = address of STS #2 in group B
IN
OUT
OC-12
MAIN 2
MAIN 1
Node 1
A
B
C
C
B
1
2(P)
A
1
DDM-2000 OC-3
US
NS
2(P)
TSI
IN
OUT
IN
OUT
b-2-1 to m-1-2-1
(ent-crs-vt1:b-2-1,m-1-2-1)
where:
b-2-1 = address of DS1 port 1, circuit pack #2,
in group FN-B
m-1-2-1 = address of VT#1, VTG #2, STS #1
in MAIN OLIUs.
DS1
MXRVO
MXRVO
(ent-crs-vt1:m-1-2-1,b-2-1
US
Node
OC-3
OC-3
Note: In this configuration, pass-through cross-connects for mb-1, mb-2, and mb-3 are not needed at the upper OC-12 NEs (not shown).