The System
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System Manual
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  Advanced Features
Basic Operation
Canceling Secondary Channel Number
Changing Receiver Channel Number
Headlight Commands
Negative Speed Offset
Park/Unpark Command
Positive Speed Offset
Primary Channel Number
Secondary Channel Number
Speed Offset
The basic operation of the hand-held transmitter, hereafter called the transmitter, (just to save some typing) is straight forward and fairly obvious.  Do not let the fancy panel labels intimidate you.  The advanced features are slightly more complex, but after using them several times, they too become very logical.
The operation of the transmitter is similar to setting the time on your VCR.  No, no, just kidding !!  It really is very easy to use and becomes almost automatic after just a few minutes of operation.
Basic operation consists of three push-buttons, the rotary knob, a slide switch, and two channel select switches.  The left facing arrow (called west from now on), stop, and the right facing arrow (called east from now on), are the push-buttons.  The slide switch is called forward and the rotary knob is obviously (I hope) the speed control.
After powering up the railroad (by applying 12-14 volts to the track), all the locos should sit patiently waiting for a command.  Select the loco to be operated, and set the channel switches to that loco's channel.  The upper switch is the most significant digit and the lower switch is the least significant digit.  This means  that if the channel desired is 27, the 2 should be set on the upper switch and the 7 set on the lower switch.  Note that the switches go from 0 to 15 or 16 different positions.  This allows for 256 channels (16 x 16 = 256), except channel 00 is reserved for emergency stop and, thus, is unavailable for normal use.  Note:  All receivers are initially shipped set to channel  01.  The channel of the receiver can easily be changed at any time (see advanced features).
Having selected the loco desired, we are now ready to operate.  Oops.. first we have to turn on the transmitter.  To do this, move the toggle switch to the up position.  As you do so, the tiny red light above stop should flash momentarily to indicate the transmitter is working.
OK, now we are ready.  While facing the loco, move the forward switch toward the forward direction of the loco.  Set the speed knob to 0 speed, and push the east or west button (depending on which way you want to go).  Advance the speed knob, and the loco will start to move in the selected direction.
The transmitter does not have to be pointed directly at the loco.  The infrared signals will normally bounce off ceilings and walls similar to your TV system.  Typically, you can expect about 10 to 15 feet of range.  Light colored ceilings and walls help extend the range, and exposed rafters in an unfinished basement will sop up the signals and reduce the range.  As you gain experience, you will find the distance over which you can operate on your railroad.
Well, now that we are moving, how do we stop ?  You have two ways. One is to simply turn down the speed with the knob, and the other is to push the stop button.  If you want to change direction, push the opposite east or west button and advance the speed knob.  If you had stopped the loco using the stop button, the loco will ramp back up to the speed where you left the speed knob set.  Note that the loco must be stopped, by either method, before it can reverse direction.  This prevents sudden changes of direction, which can derail long trains.  If you are using the speed knob for control, it is only necessary to hit the direction buttons when you change direction.
Note that when powering up the transmitter, a direction must be selected before it will send a speed command, as it doesn't know which way you want to go.
Control of the loco can be exercised using only the three buttons after the speed has been selected.  Pushing east or west will cause the loco to ramp up to the selected speed, and the stop button will ramp the speed back to 0.  Thus, for switching moves, the three button mode of operation is very convenient, and is an easy one handed operation.
The rate at which the speed changes is set by the momentum (mtm).  Changing momentum is covered in the advanced features section.   Receivers are shipped with zero momentum.
If you run around  a reversing loop or turn the loco on a turntable, the east and west buttons will now work backwards.  That is, the button will not be the in the direction the loco will go. To correct this, just move the forward switch toward the front of the loco.  That is the main purpose of this switch.  It should always be positioned toward the front of the loco, and the direction switches will have the correct orientation.
The buttons send a command each time they are pushed, and normally that is all that is required.  If the loco misses a command due to range, holding the button down will cause it to continue to repeat the command every 1/2 second.  The speed knob sends each new speed command twice.  This can be seen on the small red light above the stop button. It indicates whenever the transmitter sends a command.
The loco will continue to do what it was last commanded to do, until it receives another command or loses power.  Therefore, if it runs into a tunnel or other hidden trackage, it will continue to run until it emerges.  To allow for control of the loco in hidden trackage, RAIL-LYNX can supply repeater modules which will receive the signals and regenerate them in the hidden areas.
The only additional switch you might use during normal operation is the red emergency stop (emg from now on) button.  This button uses the reserved channel (00) to send a stop command to all locos in the area regardless of their  channel assignments.  This can be used to stop any train in order to prevent a collision, or regain control of a train that may have accidentally moved out of range of another operator.
That completes the basic operation section.  See, I told you it was easy.  So, go do some operating and get the feel of the system before you try the advanced features.
Wait !!!  I forgot to mention one of the other neat features: the built in flashlight.  To activate it just push the white button above emg, and the super-bright yellow led on the front of the transmitter will light up for you to read car numbers in dim areas or to find something that just rolled under the railroad.
All the features described below are stored by the receiver in non-volatile memory.  Therefore the data will not be lost when power is removed. The loco will remember the last settings forever (actually at least 10 years) or until you change them.
To activate any of these features, you must utilize the shift button.  This button operates similar to the shift key on a typewriter; that is, it must be held down while the alternate function is used.  Each button has an alternate function (shown below the button in parenthesis).  Whenever the shift button is held down, the (xxx) function is activated.
Momentum is the value used by the receiver to control the rate of change of speed.  That is, how fast or slow the loco's speed can change.  The system has eight levels of momentum.  The higher the number, the slower the loco will change speed.  This is easily changed from the transmitter, so that as the train tonnage changes, it can  be simulated by changing the momentum.  When switching, a small amount may  be selected, in order to get fast response.  When pulling a heavy freight, a larger number can be entered to create the effect of a heavy load.  Or, in a helper operation, the momentum can be changed when pushing uphill and when running light downhill.
To change the momentum (mtm from now on), first make sure the channel switches are set to the correct loco.  Next, the amount of mtm (0 to 7) should be selected by rotating the speed knob from 0 to 7 clicks above 0. If you set any number above 7, the transmitter will interpret it to be 7.  With the shift button held down,  push the west (mtm)  push-button.  The new momentum value will be sent to the loco, where it will be stored in memory and used by the loco until next changed.
If, after turning the speed knob to zero, or pressing the stop button, the train  is not slowing rapidly enough, simply push the stop button again.  Each time the stop button is pressed, the train will slow more rapidly.  In effect, the stop button becomes a brake.
Pushing the stop button repeatedly, will bring the train to a very quick stop, even though there is a large value of momentum selected.  Also, the transmitter will continue to send a stop command every 1/2 second if the stop button is held down.
Each receiver can actually respond to two channels; the primary and the secondary.  Normally, the primary channel is assigned when the receiver is initially installed in the loco, and is seldom changed.  The secondary channel can be assigned whenever you want MU (multi-unit/consist) operation.  Any number of locos can be assigned the same secondary channel number, and  they will then operate together.  Note that the primary channel is still active and can be used whether or not a secondary channel is assigned.  The secondary channel can be canceled at any time, and the same channel reused for other locos.
If only two locos are to be MU'ed, it is only necessary to load one unit's secondary channel with the other loco's primary channel, and not create a new MU channel.  You may have to think about it a while for it to make sense....I did.
To change the primary channel number (units are shipped with channel 01 stored in memory), first set the desired number on the channel switches.  Set the speed knob to 0 (the 0 is used to indicate no speed offset, see SPEED OFFSET), and push the hidden button on the bottom of the transmitter (bet you didn't even notice it before) using a pencil or other pointed object (some people think  model railroaders shouldn't be allowed to have sharp objects).  This will send the new primary channel to the loco.
CAUTION:  When changing the primary channel, ANY loco that receives the command will take that channel number.  This is why it should be assigned on the bench during installation.  The only time that it may have to be changed is if a friend has the same channel on a loco and wants to operate on your railroad.  With 255 channels to choose from, you shouldn't run out of channels unless you have the brass market cornered.
Receivers are shipped with no secondary channel assigned.
The secondary channel (or MU /consist channel) number is assigned in two steps.  First, the loco must be armed to take a second channel, and then the channel number is loaded.
To load a secondary channel into the loco, set the loco primary channel on the channel switches and move the forward switch to either the HL or RL position.  HL means the loco will be run headlight first, and RL means the loco will be run rear light first.  (This allows MU'ed units to run with either end forward).  With  the shift button held down, depress the stop (arm) button.  This arms the loco to accept a secondary channel.
Next, set the new secondary channel on the channel switches, and with the shift button held down, depress the east (sec) button.  This loads the secondary channel into the loco.
To cancel the secondary channel, set the primary or secondary channel number on the channel switches.  With the shift button held down, push the headlight (cncl) button.  This will cancel the secondary channel in the loco.
Note that if the secondary channel number is set on the channel switches, all units with the same secondary channel will all cancel with one command.  This is useful when breaking up an MU/consist of locos.  If the primary channel number is used to cancel, only the loco with that channel number will cancel.  This is useful when a helper may have been assigned to a set of MU'ed units, and you wish to cut off the helper, but want to keep the other units MU'ed together.
When a loco is not going to be used for a while, the park command may be used.  This is just a precaution that you may want to implement.
When a loco is stopped, it will remain stopped until it receives a message with it's channel number and a speed command.  If you have several operators operating in the same area, occasionally signals from two or more operators may overlap.  This is rare (each message is about 0.1 seconds long), but it can happen.  And, despite all the message security used by the system, there is the rare possibility of two messages merging together to form a valid but unwanted message.  If this also happens to match a nearby loco's channel, then it might start to move.  The park command will prevent this, by locking out speed commands until the unpark command is received.
To park a loco(s), first completely stop it by setting the speed knob to 0 and using the stop button. Set the primary or secondary (you can park MU'ed units with one command) channel on the channel switches, hold down the shift button, and push the emg (park) button.  This parks the loco(s). The loco(s) will now ignore any speed commands until unparked.
To unpark a loco, set the primary or secondary channel on the channel switches.  Set the speed knob to something other than 0, hold down the shift button, and push the emg (park) button.  This will unpark the loco(s).
Note that the only difference between the park and unpark commands, is the position of the speed knob.  0 speed equals park, and anything above 0 equals unpark.
Speed offsets are used to match locos that are to be run together, or to correct for locos that require a large speed setting before they start to move.  We have found that if the locos start together, they will share the load equally at most speeds.
This is used to correct for a loco that doesn't start until the speed is increased to a fairly high value.  This command essentially adds several (up to 7) clicks to the speed knob's position.   Any number over 7 will be interpreted as 7.
For example, suppose a loco does not start to move until the speed knob has reached 6 clicks.  A reasonable correction would be to add 4 clicks of positive speed offset.  To do this, set the loco's primary channel on the channel switches, and advance the speed knob 4 clicks above 0.  Depress the hidden button on the bottom of the transmitter.  This will load an offset of 4 into the loco.  Now the loco should start to move after only 2 clicks.
CAUTION:  This command is an offshoot of the primary channel command, and will be accepted by any loco seeing the message.  It should normally be used only during installation on the bench, or be sure you prevent any other locos in the area from accidentally accepting the command.
This command is used to subtract clicks from the speed knob.  The effect is as though the speed knob has been rotated past the 0 position.  For example, suppose a loco starts at 2 clicks.  A negative offset of 4 will make the loco wait to start until the speed knob reaches the 6 click position.
This can be used to match locos with a large speed differences, and may be used in the future with the sound system to allow the diesel sound to ramp up before the loco starts to move.
To load a negative offset, follow the positive offset command sequence, except hold the shift button down when you press the hidden switch on the bottom of the transmitter.  The CAUTION also applies for this command.
The headlight commands provide two dual outputs that can independently drive front and rear lights in an on/off, off/dim/ bright sequence, a dim/bright flashing (for mars light), or an alternating (for ditch lights).
For headlight operation, set the forward switch to HL (for headlight) or to RL (for rear light), and push the headlight button.  The selected light will step through the sequence of off/on, or off/dim/bright/brighter, etc, depending on the installation.  See the headlight installation manual.
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 March 15, 2014