User's Manual

MM-015039-001, Rev. H

4.2 HIGH POWER AMPLIFIER/POWER SUPPLY SHELF ASSEMBLY

The High Power Amplifier (HPA) (refer to Section 4.3.6) and the Power Supply (PS) (refer to Section

4.3.6.1) are installed in a 19” rack mountable, 2-slot metal shelf, model MA-555003 (refer to Figure 4-3).

The HPA/PS shelf is a mechanical-only assembly with no electrical components.

Figure 4-3: MASTR V HPA/PS Shelf Assembly (Shown with HPA and PS Installed)

4.3 MASTR V MODULES

For P25 operation, the following station modules may be installed in the MASTR V Base Station shelf:

 TX module

 RX module

 Baseband Processor Module

 Traffic Controller Module

 High Power Amplifier Module

 Power Supply Module

 Ethernet Switch

4.3.1 Ethernet Switch (E-Switch)

Communications with the MASTR V base station modules is provided by a built-in Ethernet Switch

module EA-555012-001 located under main module shelf. A second position is provided under the main

module shelf for a redundant Ethernet Switch module.

Ethernet communications are utilized to pass voice and data transmissions, management, and control data

between the Traffic Controller and supporting MASTR V modules via the Ethernet Switches.

Table 4-2: E-Switch Module Connections

LOCATION

CONNECTOR

DESCRIPTION

Circuit Board (side)

RJ-45

Factory Service Communications Port

4-Pin

Factory Service DC Power

Rear Panel

120-Pin

Backplane Connection (40 pair w/Shield)

3-Pin

Backplane DC Power