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Chapter 3 DS1 and E1 Interface Cabling Specifications
Traverse 2000 DS1 and E1 Card Cabling Schemes
Release TR3.2.1
Turin Networks
Page 2-25
E1 (21-port)
1:2 protection
2-slot DS1/E1
(Telco 64)
5
210
15
The center card (n+1) protects
the left-adjacent (n) and
right-adjacent (n+2) cards.
3-slot E1
(Mini-SMB)
1:1 protection
2-slot DS1/E1
(Telco 64)
8
168
16
Either the left-adjacent (n) or
right-adjacent (n+2) card from
the protecting (n+1) card is the
working card.
3-slot E1
(Mini-SMB)
5
105
10
Either the left-adjacent (n) or
right-adjacent (n+2) card from
the protecting card is the
working card. The remaining
adjacent slot is open in this
configuration. Do one of the
following:
•
Leave open slot for future
upgrade to 1:2 protection.
•
Place an optic card in the
open slot.
Unprotected
2-slot DS1/E1
(Telco 64)
N/A
336
16
DS1/E1 ECM provides direct
cable access to both cards (n and
n+1).
3-slot E1
(Mini-SMB)
210
10
E1 ECMs provide direct cable
access to only the center (n+1)
and left-most (n) cards, so place
an optic card in the right-most
(n+2) card position.
Table 2-10 Traverse 2000 DS1 and E1 Cabling Scheme (continued)
Card Type
Cabling
Scheme
ECM Type
(Connector)
Maximum
Protection
Groups
Total # of
Working
Ports
Total # of
ECM
Slots
(In Use)
Comments
(Front Shelf
Perspective)