User's Manual

NTUM30DA Installation & Service Manual
2-4 Installation Instructions (Refer to figure 1-1)
The NTUM30DA amplifier module is designed for installation on a heatsink that permits access to
the module for connection of the RF cables and the power, alarm, and control connectors.
To install the amplifier proceed as follows:
Figure 2-1 NTUM30DA Amplifier, Front Panel View
1. Install the amplifier and secure in place with appropriate mounting screws. See figure 2-1.
2. Connect the antenna cable to TRANSMITTER female N-type connector.
3. Connect the transceiver output cables to the RF IN female SMA connectors.
WARNING
Turn the front panel Power switch off before connecting the power cable.
4. Connect the power, and data cables to matching Power In and Data I/O connectors. Refer
to paragraphs 2-5 and 2-6 following for appropriate port and pin connections.
5. Check your work before applying DC voltage to the system. Make certain all connections
are tight and correct.
6. Measure primary DC input voltage. DC input voltage should be -48 ±0.5 Vdc. If the DC in-
put voltage is above or below the limits, call and consult Powerwave before you turn on your
amplifier system.
7. Refer to section 3 for initial turn-on and checkout procedures.
2-5 Power In Connector
The -48 Vdc power and ground connections on the amplifier are made through a 3-pin female
D-Sub connector (figure 2-2) and are listed and described in table 2-1.
3 2 1
Figure 2-2 Power In Connector
Table 2-1 Power In Connector Definition
Pin Signal Description
1 -48 V -48 Vdc for MCPA
2 Chassis Gnd Chassis Ground
3 .-48V_RTN -48 Vdc return, grounded to MCPA chassis ground
 Copyright Powerwave Technologies, Inc., June 2003. All rights reserved
044-05141 Rev. A 2-2 June 2003