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Operating Instructions for RX-7-DR M-LINK /
RX-9-DR M-LINK 2.4 GHz receivers
MULTIPLEX Modellsport GmbH & Co.KG • Westliche Gewerbestraße 1 • D-75015 Bretten (Gölshausen) • www.multiplex-rc.de Page 2/6
Ins
tr
uc
tions
for
R
X
-7
/9-
D
R
M-
LIN
K
2.
4 G
H
z r
e
ce
iv
er
s # 985 531
9 (
10-
02-
24/M
IW
A
) •
E
rr
o
rs
and om
is
si
ons
ex
cepted! •
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MU
LT
IP
LE
X
7.
R
ECEIVER
C
ONNECTIONS
This receiver employs the UNI connector system, which is com-
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 … 7
(… 9)
Servo sockets, channels 1, 2, 3 … 7 (… 9).
Alternatively: receiver battery socket.
B
In the case of the
RX-7-DR M-LINK
:
Receiver battery socket
(can also be connected to servo sockets 1 … 7).
Duplicated for extra security: twice the conductor
cross-section, twice the number of contacts.
B/D
Receiver battery socket
(can also be connected to servo sockets 1 … 7
(… 9)).
Duplicated for extra security: twice the conductor
cross-section, twice the number of contacts.
Socket for PC or Diversity cable /
MULTImate
.
SENSOR
Socket for external sensor module.
!
When connecting the receiver battery, servos, speed
controllers, sensors ... it is essential to insert the connector
the correct way round. With other makes of component
always check the pin assignment (see symbols on the
receiver)!
8.
F
IRST
U
SE
, F
UNCTIONS
8.1 LED Codes
LED code
Description
LED Code 0
LED OFF
Battery voltage too low
LED Code 1
LED ON
No reception
LED Code 2
1,6 sec
Binding procedure in progress
1,6 sec
LED Code 3
Normal receiving operation,
no errors
1,6 sec
LED Code 5
Confirmation signal
LED Code 6
1,6 sec
1 – 19 errors
LED Code 7
1,6 sec
20 – 49 errors
LED Code 8
1,6 sec
>= 50 errors
8.2 The functions of the SET button
Pressing the SET button on the top of the receiver when
switching on initiates the binding process (
Î
8.3
).
In receive mode, the SET button can be used to trigger two addi-
tional functions. The function selected depends on the length of
the button-press:
1.
Save error counter or FAIL-SAFE settings
Press the SET button for 0.5 to 1 second (
Î
8.8
and
Î
8.5
).
2.
RESET receiver to factory default settings
Press the SET button for longer than ten seconds (
Î
8.6
).
While the SET button is pressed, the LED indicates the length of
the button-press with time markers:
Press SET
button con-
stantly for
< 2
seconds
2 to 10
seconds
> 10
seconds
LED
OFF ON OFF
Purpose
Save error
counter /
FAIL-SAFE
settings
RESET
to default
settings
!
Note:
When the Save process is complete, the LED flashes in confir-
mation (LED code 5
Î
8.1.
).
8.3 Binding
The receiver must be set up to match the transmitter before the
system can work. This process is known as “binding”.
!
Note:
The signal output to the servo sockets is switched off during the
binding procedure. This means that the servos are “soft”, and do
not move, while the motor connected to a modern electronic
speed controller remains OFF due to the lack of a signal. Never-
theless, it is important to secure the model and keep well clear
of the power system.
The binding process is necessary in the following cases:
x
The first time the receiver is used (
Î
8.3.1
).
x
After a receiver RESET (
Î
8.6
).
x
After the transmitter setting for “Fast Response” has been
changed. For more information on this please refer to the
operating instructions supplied with your M-LINK transmitter
or M-LINK RF module.
x
After the transmitter setting for the transmitted frequency
range has been changed. For more information on this
please refer to the operating instructions supplied with your
transmitter or M-LINK RF module (“France mode”).
x
If the receiver is to be operated in conjunction with a different
M-LINK transmitter.
8.3.1 Sequence of the binding procedure
1. The first step is always to set the transmitter and receiver to
Binding mode:
x
Place the transmitter and the receiver aerials close to-
gether.
x
Switch the transmitter ON in binding mode.
(see the operating instructions supplied with your M-LINK
transmitter or M-LINK RF module).
x
Switch
the
RX-7/9-DR M-LINK
receiver ON in binding
mode:
x
Use a pointed object to press and hold the SET button
on the top of the receiver (
Î
8.2
).
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