Subrack Composition; Composition Rules - Ericsson EDA 2530 Commissioning Instructions

2.4

Subrack Composition

2.4.1

Composition Rules

2.4.1.1 Units Composition:-
•
•
•
•
•
•
2.4.1.2 Units Composition with 1+1 Protection (Not used):-
Common Part units can be protected with 1+1 protection. This protection type
requires one worker unit and one protection unit.
This protection scheme is not revertive automatically.
utilised it is mandatory to insert the protected unit in position 1 and the protection
unit in position 22.
1/153 22-FGC 101 0239/2 Uen Rev J 2010-04-01
Common Part (CP) unit is fitted in position 1 only (slot 22 will not be used) in the
lower part of the subrack (the electronic part).
64xADSL2+ and 64xPOTS/VoIP electronic units can be fitted in positions 2 to 21
in the lower part of the subrack.
32 x SHDSL electronic units can be fitted in positions 20 and 21 and then 18 and
19 in the lower part of the subrack
Generally when one electronic unit is inserted in the subrack, one "Connection"
Unit is required in the upper part of the subrack directly above it, with the
exception of the Common Part unit. The type of connection unit is identified in
Section 2.4.5 – Subrack Connection Units.
Electronic units configured as a protection unit do not require a Connection Unit.
The Power Supply Connection unit is located in the upper shelf in slot 22.
EDA 2530 Commissioning Procedure for Cable and Wireless Access
© Ericsson AB 2010
Commercial in confidence
When 1+1 Protection is
15 (200)