Nortel Networks 3500, NTRN10AN manual Dsm, NE1 DSM, NE2, NE4, NE3 DSM

Operation, administration, and maintenance (OAM) features 2-143

Figure 2-46 on page 2-143, shows an example of hybrid (VT & STS-managed) end-to-end connections in an OC-192 ring.

Figure 2-46

Hybrid end-to-end connections of DS1 facilities in an OC-192 ring

EX1489p

DS1 1

•

•

DS1 28

DS1 57

•

•

DS1 84

DSM

OM3500

NE1

DSM

OM3500

NE2

OC-192 Ring

(STS-managed)

DS1 29

•

•

DS1 56

DS1 57 DS1 58 DS1 59 DS1 60

OM3500

NE4

x4

x24

Legend

OM3500

NE3

DSM

DS1 1

•

•

DS1 24

=a bidirectional end-to-end STS1 connection, involving a 28 DS1 DSM port at each end

of the connection. This connection traverses on an STS & VT-managed OC48 ring.

= 24 bidirectional end-to-end hybrid STS1 & VT1.5 connections, each one involving a DS1 at the end of the connection. This

is implemented by an STS1 cross-connect in NE1, 24 pass-thru VT1.5 cross connect in NE4 and 24 VT1.5 cross connects in NE5.

= 4 bidirectional end-to-end hybrid STS1 & VT1.5 connections, each one involving a DS1 at each end of the connection. This

is implemented by an STS1 cross-connect in NE1, a 4 DS1 VT1.5 pass-thru STS1 cross connect in NE4, 4VT1.5 pass-thru cross connects in NE3, and 4 VT1.5 cross connects in NE2.

Note: Only unprotected connections are shown.

Figure 2-47 on page 2-144shows an example of hybrid (VT & STS-managed) end-to-end connections in an OC-192 ring.

Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004