User's Manual Part 1

Chapter 3 Installation
3.13 RF Output Interfaces
Opening RF lines during operation may cause electric arcs that can
cause burns and eye injuries. RF output ports 1 and 2 must be
terminated into a broadcast antenna or test load.
The DRU-200 includes two (2) RF output ports, which are located on the outside of the
cabinet above the HPA compartment rear door.
During the installation procedure, these outputs must be terminated into a broadcast
antenna or test load.
Figure 3-34 RF Output Ports
1) Output 1 (Combined RF Output Port) – 7/8” EIA Flange
2) Output 2 (Independent RF Output Port ) – 7/8” EIA Flange
The HB, LB and LBD transmit signal mapping depends on the DRU configuration – see Table
3-11
.
Table 3-11 RF Output Mapping
Port Combined DRU Independent DRU
Output 1 HB and LB HB and LBD
Output 2 LBD LB
The following steps should be performed to terminate Output 1 and Output 2:
1. Insert the inner connector into the 7/8” EIA flange – see Figure 3-35
.
2. Place the rubber ring in the 7/8” EIA flange groove – see Figure 3-35
.
3. Connect the transmission line (or jumper), with 7/8” EIA flange, to the cabinet
according to site drawings.
4. Secure the transmission line or jumper in place by installing a 1/4-20x1” hex head
bolt with 1/4” flat washer and 1/4” spring washer in each one of the holes (3 total) –
see Figure 3-35
. A 7/16” torque wrench with a rating of 61.5 In. Lbs. should be used
to tighten the bolt.
SX03-10000-01-M01 3-42