Chapter 5 - Digital Wireless System Receivers; Iversity Receiver; Powering The Receiver; Internal Batteries - Zaxcom TRX900 User Manual

Zaxcom Digital Wireless System User's Manual_______________________________________Chapter 5
This section is intended to quickly familiarize you with the functions of each of the Digital Wireless System
receivers and was written based on firmware version 8.76.
Getting to know your RX900 (M/S) ENG Diversity Receiver

Powering the Receiver

The ENG Diversity Receiver can be powered by batteries installed in the unit or using an external 9 to 18 VDC
source.
Use the front panel power switch to select: internal power, external power or no power.

Internal Batteries

Four AA batteries are used to power the receiver. Use either Lithium or Nickel Metal Hydride (NiMH) AA
batteries. While alkaline batteries may be used, they will only power the unit for a short time (~30 to 60 minutes).
NiMHs will last up to 6 hours, while Lithiums will last about 10 hours.
To use internal batteries, set the power switch to the INT position.
The 4 AA batteries are accessed by pressing on the battery door while sliding the door away from the center of
the unit.

External Power Source

An external 12 VDC source can be used to power the receiver for an extended time. Set the front panel power
switch to the EXT position while using an external power source. The receiver does not automatically switch to
an internal power source if the external power source is lost. You must manually change the front panel power
switch from EXT to INT, to power the unit from the internal AA batteries.
The receiver external power can range from 9 to 18 VDC. However, if the voltage drops below 10 VDC, the
audio quality will degrade.

Receiver Connections

This section describes the physical connectors on the receiver. The power connector was described in the
previous section.
Chapter 5 – Digital Wireless System Receivers
1.
2. 3. 4. 5.
1. Antenna connectors (SMA)
2. DEC key
3. INC key
4. MENU key
5. LCD screen
6. Power LED and selection switch
Figure 5-1 RX900 (M/S) Front & RX900 (S) Rear Views
1.
6. 7.
7. External DC power connector
8. Line/Mic level switches
9. Audio output connector
(M=XLR-3M / S=XLR-5M)
10. Battery compartment door
49
8. 9. 10.