FMA Direct FORTRESS 2000 Скачать руководство пользователя страница 2

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FCC Information:  FCC ID:  KH8-T2000 - This device complies with Part 15 of the Rules.  
Operation is subject to the following two conditions:  (1) This device may not cause harmful 
interference, and (2) this device must accept interference received, including interference 
that may cause undesired operation. 

 
PACKAGE CONTENTS: 

1. 

FMA Direct Fortress 2000 FM, 8 channel, Universal PPM receiver 

2. 

Dealer or factory-installed channel crystal (if purchased with unit) 

3. Owner's 

Manual 

4. 

Programming Quick Reference 

 
PREPARATION: 

 

COMPATIBILITY - POWER AND SERVO CONNECTION 

Fortress 2000 receivers are 
available in two models.  Part 
number 

201FM

 (pictured in Figure 

1) is designed for use with all 
standard servo connectors and 
supports Futaba, JR, Hitec servos, 
and Airtronics servos equipped with 
the new “Z TYPE” connectors, as 
well as other brands that use 
standard polarity (GROUND, 
PLUS, SIGNAL).  Part number 

201FM

 is identifiable by the Futaba 

polarity “key” that appears at all 
servo inputs on the top of the 
receiver case.  Model 

201FM

 

receivers 

are not

 compatible with 

“OLD STYLE” Airtronics connectors 
that use reverse power polarity 
(PLUS, GROUND, SIGNAL).  Part 
number 

201AFM

 

is

 designed 

specifically to support “OLD 
STYLE” Airtronics connectors 

only

.  

201AFM

 is identifiable by the 

Airtronics polarity “key” that 
appears in the top of the receiver 
case.  If you are unsure which 
model receiver you have, contact 
FMA Direct immediately.  See 
warning below.  It is possible at any 
time to have your 201AFM 
converted to a 201FM by the 
factory at a minimal charge. 
 

WARNING:  IF YOU INTEND TO INTERFACE AIRTRONICS SERVOS THAT USE “OLD 
STYLE” (PRE-“Z TYPE”) AIRTRONICS CONNECTORS TO THE FORTRESS 2000, YOU 
MUST EITHER 1) MAKE CERTAIN YOU ARE USING A MODEL 201AFM RECEIVER OR 
2) UPDATE THE CONNECTOR TO THE CURRENT INDUSTRY STANDARD POLARITY 
(SEE FIGURE 1) AND PROPER INDUSTRY STANDARD SHELL THICKNESS. YOU MAY 
READILY CONVERT YOUR EXISTING “OLD STYLE” AIRTRONICS CONNECTORS TO 
CURRENT STANDARDS 1) BY INSTALLING APPROPRIATE ADAPTERS OR 2) BY 
REMOVING THE OLD CONNECTORS AND PINS AND REPLACING THEM WITH FMA 
PART NUMBER SEASSYJ.  EACH SEASSYJ CONTAINS ONE JR COMPATIBLE MALE 
SHELL AND 3 FEMALE PINS.  YOU WILL NEED TO CRIMP THE PINS AND SOLDER 
THEM TO THE WIRES OF YOUR EXISTING SERVO AND PLUG THEM  INTO THE 
SHELL PROVIDED.  MAKE CERTAIN THAT THE RED WIRE (+V) GOES TO THE 
CENTER PIN AS ILLUSTRATED IN FIGURE 1.  FMA WILL NOT ACCEPT 
RESPONSIBILITY FOR ANY ATTEMPT TO USE “OLD STYLE” AIRTRONICS 
CONNECTORS WITH PART NUMBER 201FM RECEIVERS THAT DO NOT HAVE THE 

SERVOBRAND 

FUTABA 

BLK 

RED  WHT 

JR 

BRN  RED  ORG 

HITEC 

BLK 

RED  YLW 

AIRTRONICS (201AFM ONLY!)  RED  BLK 

BLK 

TABLE 1 SERVO PLUG ORIENTATION 

1

2

3

Figure 1 - Model 201FM Shown 

POLARITY CHANGED TO INDUSTRY STANDARDS.  LIKEWISE, FMA WILL NOT 
ACCEPT RESPONSIBILITY FOR ANY ATTEMPT TO USE “STANDARD” SERVO 
CONNECTORS WITH PART NUMBER 201AFM. 

 

 

COMPATIBILITY - PROGRAMMING THE FORTRESS 2000 FOR OPERATION WITH 
YOUR FM TRANSMITTER 

1. 

All Fortress 2000 receivers support full crystal interchangability using FMA Direct 
Fortress series crystals.  Contact your local FMA Direct dealer or call FMA Direct to 
obtain the correct Fortress series crystal for operation with your transmitter frequency. 

2. 

Designed for the utmost in reliability and compatibility, the new series of receivers 
from FMA Direct are the first to incorporate user-programmable FM shift compatibility 
with any standard FM/PPM  transmitter currently being sold.  User programmable 
through a series of 5 dip switches, the same receiver can now operate with positive or 
negative FM shift transmitters.  So if you have a Futaba and a JR transmitter with you 
at the field on different R/C channels, and one channel is already in use, you can 
simply plug in the correct receiver crystal, change the settings of the dip switches 
using a small screw driver and you’re ready to fly! 

3. 

In general, 72 MHz Fortress 2000 receivers are shipped compatible with “negative”, 
Futaba type frequency modulation (FM) - also termed “high-going-low” modulation.  
JR and Airtronics transmitters incorporate “positive” or “low-going-high” frequency 
modulation.  At Ham band (50 and 53 MHz), all current R/C transmitters incorporate 
“positive” modulation so, in general, Ham frequency Fortress 2000 receivers are 
shipped compatible with “positive” modulation.  If you are using JR or Airtronics 
equipment on 72 MHz, you may need to adjust the DIP switch settings on the 
Fortress 2000 before the receiver will “listen” to your 
transmitter. 

4. 

In order to program the Fortress 2000 receiver to a 
different FM shift, refer to the Programming Quick 
Reference included with your receiver.  The DIP 
switches are located on the top of the P.C. board.  
Carefully remove the black tape that seals the top 
and bottom of the case together and set it aside until 
you have completed programming the receiver.  As 
shown in Figure 2, there are two banks of DIP 
switches mounted on the top of the P.C. board.  The 
first bank contains 

four

 switches that are factory set 

and are not to be adjusted by anyone other than an 
FMA Direct technician.  These four switches determine the servo polarity for the 
receiver. 

NOTE: ADJUSTING THESE FOUR SWITCH POSITIONS COULD RESULT IN 
DAMAGE TO THE RECEIVER AND SERVOS NOT COVERED BY WARRANTY!

 

The second bank of DIP switches contains 

five

 switches.  Each switch is labeled 1, 2, 

3, 4, 5 and the word ON is identified on the other side of the switch array.  These are 
the switches that control the FM shift of the receiver.  Use a small jeweler type flat 
screw driver to change the switches from one state to another.  On the Programming 
Quick Reference provided, identify your transmitter brand and the frequency band of 
the transmitter/receiver combination (i.e. 72, 53, 50 MHz) on which you fly.  Correlate 
this information to the proper diagram and set the DIP switches at the positions 
shown.  There are only two settings which work.  If one setting doesn’t work, the other 
one will.  Please note, the black square on the diagram indicates the switch position!  
Replace the black tape that seals the top and bottom of the case together. 

 

• 

INSTALLATION 

Care must be taken when installing your receiver to isolate the electronics from vibration.  Do 
this by wrapping the receiver in 3/8” thick foam rubber.  Restrain the foam-packed receiver 
using Velcro or a rubber band if necessary. 

NOTE:  FAILURE TO USE FOAM RUBBER AS DESCRIBED ABOVE DURING 
INSTALLATION VOIDS PRODUCT WARRANTY. 

Extend the antenna to its full length.  Do not coil the antenna up or range will be shortened.  
If you are installing the Fortress 2000 in a small aircraft and you require a shorter antenna, 
you may cut off a portion of the 39.75” antenna without de-tuning the receiver; a unique 

BA

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K 1

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PROGRAM

Figure 2 

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