Nortel Networks 1000M 사용자 설명서
Preparing for installation
Page 39 of 456
Communication Server 1000M and Meridian 1
Large System Installation and Commissioning
•
A System Monitor checks the column’s cooling and power systems.
•
A blower unit (accessible from the front of the pedestal) forces air up
through the modules to cool the circuit cards.
through the modules to cool the circuit cards.
Figure 1
Universal Equipment Modules
Universal Equipment Modules
Top caps
A top cap is mounted on the top module of each column. It contains:
•
Air exhaust grills in the cap that release air from the blowers in the
pedestal.
pedestal.
•
A heat sensor that monitors the temperature of the column.
1-tier column
4-tier column
Pedestal
Module 0
553-AAA1241
Top Cap
Module 0
Module 2
Module 1
Module 3
NO
RT
EL
NO
RT
EL
NO
RT
EL
NO
RT
EL
NO
RT
EL
Univ
ersal
Equipment Module
Univ
ersal
Equipment Module
Univ
ersal
Equipment Module
Univ
ersal
Equipment Module
Univ
ersal
Equipment Module
Tier 0