Zaxcom Digital Wireless System User’s Manual_______________________________________Chapter 5
49
Chapter 5
– Digital Wireless System Receivers
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
1. 1.
2. 3. 4. 5. 6. 7. 8. 9. 10.
1. Antenna connectors (SMA)
7. External DC power connector
2.
DEC
key
8. Line/Mic level switches
3.
INC
key
9. Audio output connector
4.
MENU
key
(
M
=XLR-3M /
S
=XLR-5M)
5. LCD screen
10. Battery compartment door
6. Power LED and selection switch
Figure 5-1 RX900 (M/S) Front & RX900 (S) Rear Views
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.
