These operating instructions are an integral part
!
of the product, and contain important information
and safety notes. Please store them in a safe place,
where you can find them at any time, and pass
them on to the new owner if you sell the receiver.
1.
S
PECIFICATION
Order No.
Reception system
Servo channel count
Servo frame rate
Smart ID
Signal resolution
Current drain
Aerial length
Operating voltage
Operating
temperature range
Weight
Dimensions
2.
S
F
PECIAL
EATURES
•
Universal receiver with SRXL serial servo output, ideal for
use in multi-function models or small helicopters / quadro-
copters.
•
User-variable MULTIPLEX SMART ID for intelligent model
identification (can be used in conjunction with SMART SX or
SMART SX FLEXX transmitter)
•
HOLD / FAIL-SAFE function.
3.
S
N
AFETY
OTES
!
Please read the instructions before using the receiver.
!
Use the receiver only for the intended applications
(
4.).
!
The power supply must be of adequate capacity (
!
Observe the installation notes (
!
Carry out regular range checks (
4.
A
PPLICATIONS
The RX-4/9 and RX-4/16 FLEXX M-LINK ID receivers are radio
control receivers intended exclusively for use in model sport. It is
prohibited to employ them for other purposes such as full-size
(personal transport) vehicles or industrial installations.
Receivers such as the RX-4/9 or 4/16 FLEXX M-LINK ID are
designed with absolute minimum size and weight as top priority.
For technical reasons this means that they cannot provide the
same reception characteristics as larger, more sophisticated and
more expensive receivers. Wherever the model has sufficient
MULTIPLEX Modellsport GmbH & Co.KG • Westliche Gewerbestraße 1 • D-75015 Bretten (Gölshausen) • www.multiplex-rc.de
Operating Instructions for the
RX-4/9 FLEXX M-LINK ID and
RX-4/16 FLEXX M-LINK ID 2.4 GHz receivers
RX-4/9: #5 5837
RX-4/16: #5 5838
2.4 GHz FHSS M-LINK
Frequency Hopping Spread Spectrum
MULTIPLEX-LINK
4 (plus 9 / 16 via SRXL serial servo
output)
Fast Response: 14 ms
Standard: 21 ms
(according to transmitter)
User-variable (default setting: 8)
12-bit, 3872 steps
(according to transmitter)
approx. 30 mA (excl. servos)
Feed cable: approx. 10 cm
Aerial: approx. 3 cm
3.5 V ... 9.0 V
4 - 6 NiCd / NiMH (NiXX) cells
2S LiPo / LiIo
- 20 °C ... + 55 °C
7 g
approx. 34.0 x 19.5 x 11.0 mm
9.).
10.).
space to accommodate a larger receiver, then in the interests of
safety this option should always be taken. Nevertheless it is pos-
sible to obtain an excellent receiving performance even from
small units such as the RX-4/9 or 4/16 FLEXX M-LINK ID under
normal conditions, provided that the RC system components
and receiver aerial are installed and deployed carefully.
5.
C
OMPATIBILITY
The receiver can be used with any radio control transmitter
which employs MULTIPLEX M-LINK transmission technology.
The SRXL serial servo output function can be exploited in con-
junction with modules such as the switching unit MULTIswitch
FLEXX, # 7 5888. Many other products, including stabilisation
systems, battery backers etc., are also compatible with SRXL.
6.
P
S
OWER
The receiver works with a broad range of voltages from 3.5 V ...
9.0 V, i.e. it can be used with receiver batteries consisting of four
to six NiXX cells or 2S LiPo / 2S LiIo packs.
!
Note: if you intend to use a five-cell or six-cell NiXX battery,
it is essential to check that all the servos, gyros and other com-
ponents connected to the system are approved by the manufac-
turer for use with the higher operating voltage of up to 7.5 V (9.0
V). If you intend to use a 2S LiPo (2S LiIo) battery, check that all
the servos, gyros and other components are approved by the
manufacturer for use with an operating voltage of up to 8.4 V
(8.2 V).
!
Note: the power supply must be of adequate capacity
A power supply system in good condition and of adequate
capacity for the particular application plays an indispensable role
in the safe operation of any model:
•
Use only high-quality receiver batteries of adequate capacity.
Balance and maintain them carefully, and charge them fully
before each session.
•
All cables must be of adequate conductor cross-section.
Keep all wiring as short as possible, and use the absolute
minimum of plug / socket connections.
•
Use high-quality switch harnesses exclusively.
•
Brief collapses in the power supply voltage (lasting a few
milli-seconds) have no adverse effect on the receiver. Longer
voltage collapses to below 3.5 V may cause a receiver reset,
resulting in a brief interruption in reception. This may be due
to a receiver battery which is almost flat, too weak or
defective, cables of inadequate cross-section, poor-quality
connectors or an overloaded or defective BEC system.
7.
R
ECEIVER
This receiver employs the UNI connector system, which is com-
6.).
patible with the connector systems used by most radio control
manufacturers (e.g. HiTEC, robbe/Futaba, Graupner/JR).
The receiver sockets are marked as follows:
1, 2, 3, 4
Servo sockets, channel 1, 2, 3, 4
MULTIPLEX SRXL serial servo signal output (9 /
B/D
16 channels); also socket for the optional USB
lead # 8 5149 for changing the SMART ID (
/ SRXL
UPPLY
C
ONNECTIONS
9)
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