Manual Part 7

IDM-02 Internal Distri bution Module
1 Product Overview
The IDM-02 distributes +24 V DC pow er supply to all DC-powered units in the
RBS. Distributio n circui ts are protected by circuit breakers.
1.1 Main Functions
The IDM consists of a unit and the following:
Seven circuit b re akers
Two Power Supply Unit (PSU) cables
Connect ors to the different DC powered un its
2 Dimensions
The phy sical characteristics of the IDM-02 are shown in the table below.
Table 1 IDM-02 Size and Weight
Height Width Depth Weight
128 mm 217 mm 80 mm 2 kg
3 Function Description
The IDM has the following external interfaces:
Two PSU cables
Connect ion to DC filter (positive)
Connect ion to DC filter (negative) and earth connectio n
System v oltage t est port
ESD wrist-strap c onnector
Power distribution connectors, see Table 4 on page 4
4 Interf ace
4.1 Signal and Power Interfaces
Input Data
The input data for the IDM-02 is shown in the table below.
3 (6)
EN/LZT 720 0380 Uen R1B