User's Manual

044-05117
2. Measure primary DC input voltage. DC input voltage should be +27 Vdc ±1.0 Vdc. If the DC
input voltage is above or below the limits, call and consult an electrician before you turn on
your amplifier system.
Refer to Chapter 3 for initial turn-on and checkout procedures.
Lock
Position
Unlock
Position
3-Position Switch:
Reset (Up)
On (Middle)
Off (Down)
Figure 2-1. Power Switch Functions and Unlocking/Locking Thumbscrews
2-6.2 Amplifier Module Power, Alarm, Control, and RF Connector
The power, alarm, control, and RF connections on the amplifier are made through a 21WA4 male
connector, located on the rear of the amplifier. Pins are listed and described in Table 2-6. Alarms
are interpreted by the amplifier subrack and reported to the base station as a system level alarm.
A1
A2
A3
A4
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17
Figure 2-2. DC and Logic Connector (Male, on Rear of G3L-850-135 Amplifier Module)
Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier 2-5