RAILS CONNECT RoS-8D User manual

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RAILS CONNECT DCC DECODERS are designed to give silky-smooth running “out of the box” - with advanced brown-out
protecon and fully self-adjusng back-EMF as standard.
BEFORE you install your new RAILS CONNECT decoder.
Please test run your locomove on DC if possible. If it does not run well, even if it is new, make sure that wheels & pickups
are cleaned. If needed, adjust the pickups so that they contact the wheels reliably. New loco’s are usually pre-oiled but if it
has not been used for a long me, remove the old oil and oil again with ny drops of plasc-safe oil.
INSTALLING your new RAILS CONNECT DCC decoder.
• Remove the DCC blanking plug from the locomove socket.
• Insert the decoder. Note that 21 pin decoders install with the PCB side down and you should press down rmly but
evenly so the pins engage evenly. 6 pin decoders are installed with the RAILS logo on top and 8 -pin direct decoders
are installed correctly when the #1 pin of the socket is at the same end as the S in the RAILS logo. For 8 -pin harness
decoders, the number 1 pin is the orange wire on the 8 -pin plug.
BEFORE you aempt to run your locomove on the layout.
Aer installaon, always place your loco onto the programming track rst. This is always a good idea as the lower power of
the program track will not cause damage if the loco wiring is faulty. If your decoder won’t respond on the programming
track, check the installaon.
ADDRESS your new RAILS CONNECT DCC decoder.
The default address is 3. RAILS CONNECT decoders can be set at any address between 1 and 9999. Use your controller
instrucons.
RESET and addional setup or adjustment of your decoder.
Set CV8 to 8 to restore ex -factory defaults. Your decoder has a huge range of features. The following pages detail the
extended range of CV sengs that can be adjusted on your decoder.
FULL CV LISTING GUIDE
CONTENTS
Product Specicaon 2Short Address 2
Long Address 2Consist Address 2
Decoder Lock 2Light Eects 3
Modifying Light Eects 3Funcon Remapping 6
Flicker Eects 6Consist Light Control 7
DC Light Operaon 7Back EMF 7
Momentum 8Variable Momentum 8
3 Point Speed Curves 8Speed Tables 9
Buon Control of Motor 9Full CV Lisng 10
V1—10-10-20—RB

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CV guide and specification for RoS-8D, RoS-218,
RoS-6D & RoS-8HP decoders
Specification (RoS-8D, RoS-218, RoS-6D)
Connuous Power 750mA (Connuous)
Peak Power 1.0A
Light Funcon output max 100mA
Version V9-B3
1、Short address
To modify this address simply program CV 1 to a different value between 1-127.
2、Long address
To modify long address simply program CV17 and CV18 to a different value between 128-9999.
Once the derived values have been programmed, enable the Long Address by adding a value of 32 to
CV 29. CV 29 has a default value of 6, so to enable the 4-Digit Address just add a value of 32 and pro-
gram the resulting value of 38 into CV 29.
3、Consist address
Consist Addressing is similar to Short Addressing in that it can accept values from 1-128.
4、Decoder lock
Decoder Lock is used when a locomotive has 2 or more decoders in it. With the CV 16 values de-
fined you are ready to lock and unlock each decoder. To unlock a decoder simply put the locomotive on
the programming track and program CV 15 to whatever value the decoder you want to program has in
CV 16.
7-bit Short address CV1
Long address (High Byte) CV17
Long address (Low Byte) CV18
Enable long address CV29
Consist address CV19
Unlock decoder CV15
Decoder lock number CV16
Specification (RoS-8HP)
Connuous Power 1.5mA (Conservave, RMS)
Peak Power 3.0A (Momentary peak only)
Light Funcon output max 2x 100mA, 2x 500mA
Light Funcon output connuous 2x 30mA, 2x 150mA
Version V9-B3

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
5、Light effects
Light feature Light function
*Not all decoders have all 6 light func-
tions. Check your decoders spec and
function list to determine how many of
the above listing functions you have.
*Take the value corresponding to the feature & directionality you decided on from the table above. Enter
that value into table above in the row for the light function you want to apply the feature to.
6、Modify lighting effects
6.1、Mars/Gyra light adjustment
6.2、Rotary Beacon
Forward Reverse Both
Constant Bright 016 32
Random Flicker 117 33
Mars Light 218 34
Flashing Light 319 35
Single Pulse Strobe 420 36
Double Pulse Strobe 521 37
Rotary Beacon 622 38
Gyra Light 723 39
Rule 17 ( dimmable light ) 824 40
Ditch Light phase A 10 26 42
Ditch Light phase B 11 27 43
Constant Dim light 12 28 44
Auto Mars Light 13 29 45
CV49 F0F White wire
CV50 F0R Yellow wire
CV51 F1 Green wire
CV52 F2 Purple wire
CV53 F3 Pink wire
CV54 F4 Brown wire
Mars/Gyra light CV Values
Min Brightness CV112 1-25
Max Bright Duraon CV113 1-255
Total Light Cycle CV114 1-3
Mid Brightness CV115 1-25
Max Brightness CV116 1-25
Rotary Beacon CV Values
Min Brightness CV118 1-25
MaxBright Duraon CV119 1-255
TotalLight Cycle CV120 1-3
Mid Brightness CV121 1-25
Max Brightness CV122 1-25

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
Mars Light, Gyra Light, and Rotary Beacon Modification:
• Note: All of the above lighting features allow for 3 points of brightness adjustment, as well as 2
timing related CV’s.
• The Total Light Cycle adjustment is a multiplier with increasing values (2 & 3) increasing the length
of each light cycle.
• The Max Bright Duration dictates how long the lighting feature will remain at full brightness.
• The Total Life Cycle value will act as a multiplier on the Max Bright Duration & increase the time at
max bright.
• When adjusting the brightness values keep these tips:
• All values must be above 0.
• All three values (Min., Mid., and Max) cannot be the same.
• Min. brightness must always be lower than (or equal to) mid. brightness, and mid. brightness
must be lower than (or equal to) the max brightness
6.3、Flashing light
Values between 0-255 are accepted (the larger the value, the longer the light will remain in the
specified state).
6.4、Single Pulse Strobe
Values between 0-255 are accepted (the larger the value, the longer the light will remain in the
specified state).
6.5、Double Pulse Strobe
Values between 0-255 are accepted (the larger the value, the longer the light will remain in the
specified state).
Flashing light CV Values
Light on duraon CV144 0-255
Light o duraon CV145 0-255
Single Pulse Strobe CV Values
Light on duraon CV141 0-255
Light o duraon CV140 0-255
Single Pulse Strobe CV Values
1st Light on duraon CV147 0-255
Short o duraon CV148 0-255
2nd Light on duraon CV147 0-255
Long o duraon CV146 0-255

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
6.6、Rule 17 (dimmable light)
Rule 17 Dimming includes three different types of functionality: Opposite Dim (when travel-
ling forward the reverse light is on dimmed, and when travelling in reverse the forward light is on
dimmed), Dim when stopped (when a locomotive comes to a complete stop the light(s) dim), and
button controlled dimming.
By default button controlled dimming is in place any time a lighting function is assigned the Rule
17 lighting effect, however, Opposite Dim & Dim when Stopped must be enabled in CV 61 before
they will effect the decoders operation. See the table below for information on enabling these ef-
fects.
NOTE: CV61 controls the use of BEMF as well as the Rule 17 lighting. To program this CV
properly select the features from the left that you want then add up the corresponding values
and program the result of that summation in CV 61. If you program an even number in CV 61
BEMF will be disabled which may significantly effect the slow speed per-formance of your loco-
motive.
Please note that will Dim when Stopped will work on any function output Opposite Dim can
only be used with the White or Yellow Wires (F0F, F0R). Button controlled Rule 17 Dimming is
always enabled so if you program a light function to the Rule 17 lighting feature and press the
Rule 17 button (by default button 4) any light using the Rule 17 feature will dim.
6.7、Ditch Light
Each decoder includes a Left (phase A) and Right Ditch Light (phase B) which are controlled by
a Single Ditch Light generator. The overall speed at which the ditch lights alternate can be adjusted
with values from 1-255. The lower the number slower the alternation, and the higher the number the
faster they blink.
6.8、Constant Dim Light
Each Constant Dim light values can be adjusted between 1-20 (with 20 being full brightness and 1 being least
bright).
6.9、Auto Mars Light
This lighng feature will remain at full brightness unl the locomove is decelerang below 36% speed
at which point it will switch to the mars light paern. When the locomove accelerates over 36% speed it
will again return to a full brightness light.
CV61
Enable BEMF 1
Enable Buon Control of BEMF 2
Dim when Stopped 16
Opposite Dim 32
Alternaon rate
Ditch Light CV117
Brightness seng
Constant Dim CV64

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
7、Function Remapping
In most cases, you can control almost any wire ( function ) with almost any button on your controller.
NOTE: If you are using Ditch Lights, do not use buttons 2 or 5 for any wires because these but-
tons control the ditch light flash. If you are using Rule 17 light dimming, do not use button 4 for any
wire because it controls light dimming. You may use buttons 2, 4 & 5 as you wish if you are not using
ditch lights or headlight dimming.
8、Flicker Effects
87654321R-0-FDefault CV
White wire 32 16 8421CV33 1
Yellow wire 32 16 8421CV34 2
Green wire 32 16 8421CV35 4
8421CV37 0
Purple wire 32 16 8421CV36 8
8421CV38 0
Brown wire 32 16 8421CV39 16
8421CV41 0
Pink wire 32 16 8421CV40 32
8421CV42 0
Flicker Effects CV47
F0F Stays on with no flicker only in forward direction when F0 available
CV47 = 1
F0R Stays on with no flicker only in reverse direction when F0 available
F1 Flickers and then stays on in both directions when F0 available
F2 Flickers and then stays on in both directions when F0 available
F3 Flickers and then stays on in both directions when F0 available
F4 Flickers and then stays on in both directions when F0 available
F0F Flickers and then stays on in both directions when F0 available
CV47 = 2
F0R Flickers and then stays on in both directions when F0 available
F1 Flickers and then stays on in both directions when F0 available
F2 Flickers and then stays on in both directions when F0 available
F3 Flickers and then stays on in both directions when F0 available
F4 Flickers and then stays on in both directions when F0 available
F0F Stays on with no flicker only in forward direction when F0 available
CV47 = 3
F0R Stays on with no flicker only in reverse direction when F0 available
F1 Flickers and then stays on in both directions when F1 available
F2 Flickers and then stays on in both directions when F2 available
F3 Flickers and then stays on in both directions when F3 available
F4 Flickers and then stays on in both directions when F4 available
F0F Flickers and then stays on in both directions when F1 available
CV47 = 4
F0R Flickers and then stays on in both directions when F2 available
F1 Flickers and then stays on in both directions when F3 available
F2 Flickers and then stays on in both directions when F4 available
F3 Flickers and then stays on in both directions when F5 available
CV47 = 5
F4 Flickers and then stays on in both directions when F6 is available

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
9、Consist Light Control
By default none of the lights controlled by a decoder can be turned on or off when using the consist
address to identify the locomotive. However, all of the lighting functions can be controlled by modifying
CV’s 21 and 22. CV 21 controls F(1) through F(4) and CV 22 controls F(0)F and F(0)R.
Simply select the lighting features above that you would like to control while in a consist, add up the
corresponding values from the right column and program the resulting value in the CV listed at the
bottom of each table.
10、DC light operation
Enabling Lights on DC:
Add the corresponding values from the right hand column of the table and program that value into
CV13.
11、BEMF
11.1、Programmed ON/OFF
Programmed On/Off simply refers to turning on or off BEMF by adjusting CV values. To disable
BEMF simply set CV 61 to the next smallest even number. For instance, if CV 61 has a value of 17,
programming a value of 16 will disable BEMF.
11.2、Button Control of BEMF
To enable Button Control of BEMF a value of 2 should be added to the value in CV 61. Being that
CV 61 has a default value of 1 adding a value of 2 and programming the resulting value of 3 into CV
61. By default after enabling button control of BEMF turning on and off function button 6 will turn on
and off BEMF. To remap button control of BEMF select the function button from the table below and
program the selected value into CV 136.
WhiteF(0)F 1
YellowF(0)R 2
CV22
GreenF(1) 1
PurpleF(2) 2
BrownF(3) 4
PinkF(4) 8
CV21
White and Yellow(F0F and F0R) 1
GreenF(1) 2
PurpleF(2) 4
BrownF(3) 8
PinkF(4) 16
CV13
Funcon Buon 5678910 11 12
Value 124816 32 64 128

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
11.3、BEMF Cutout
To enable BEMF Cutout simply enter a value into CV 10 that is between 1 and 128.
The value entered into CV 10 directly correlates to the speed step at which it will cut out. That is to
say if you wish to disable BEMF at speed steps above speed step 50 enter a value of 50 into CV 10.
12、Momentum
Momentum is controlled by adjusting the values of CV 3(The rate of Acceleration) and CV 4(The
rate of Deceleration). Values between 1-255 are accepted and the larger the value used the longer it
will take for the decoder to ramp up its speed.
13、Variable Momentum
• Variable uses five CV’s for Acceleration & five CV’s for deceleration as pictured in the above dia-
gram. Both Accel. and Decel. have three different rates of speed change and two points used to
identify when to move from one to the next.
• As you can see above Acceleration has Rates 1, 2, and 3, and transition points between 1 and 2,
and 2 and 3.
• Deceleration has Rates 4, 5, and 6 and transition points between 4 and 5, and 5 and 6.
• Implementing Variable Momentum is as simple as programming values between 0-255 into all of
the CV’s above.
• To achieve the ideal curve a bit of trial and error and adjustment will be required.
14、3 Point Speed Curves
To enable 3 Point Speed Curves simply program values into CV 2 (Start Volts), CV 6 (Mid Volts),
and CV 5 (Top Volts). The Speed Curve is defined in CV’s 2, 6 and 5 with each CV corresponding to
approximately 1/3 of the speed range. Values may range from 1-255.
NOTE: 3 Point Speed Curves do not allow for parabolic speed curves. That is to say each consecu-
tive CV must have a value higher than, or equal to, the CV before it.

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
15、Speed Tables
To enable user speed tables add a value of 16 to whatever value you find in CV 29.
Speed table values are defined in 28 CV’s from CV 67 to 94. Each CV defines 1/28 of the
speed range and the decoder uses each value as a point to generate the speed curve used by
the locomotive .
16、Button Control of Motor
• Button Control of the Motor has two forms: Automatic (direction of motor spin determined by the
direction command sent to the decoder) or Manual (direction of motor spin determined by which
button is pressed). * To enable Automatic button control add a value of 68 to whatever value is
found in CV 61. By default CV 61 has a value of 1 so simply program a value of 69 into CV 61.
• If CV 134 set to 8 when button 2 is pressed the motor will run at full speed in the direction
identified on the handheld. To remap the button please set the value of CV 134 by referring to
the table below.
To enable Manual button control add a value of 64 to the value is found in CV 61. Once completed
the decoder will run in the forward direction when button 2 is enabled and in reverse when button
3 is enabled. In both cases to set speed (voltage) of the motor adjust the value of CV 133 (This
value ranges from 0-128 which equates to to 128 speed steps).
Speed steps Step1 Step2 Step3 ...... ...... Step126 Step127 Step128
CV 67 68 69 ...... ...... 92 93 94
Buon Fwd 0 Rev 1234
Value 124816 32

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
16、CVs and Description
CV Descripon Default CV Descripon Default
1Primary Address 340 Funcon 4Map (Pink0-6) 32
2Vstart 041 Funcon 3Map (Brown7-12) 0
3Acceleraon 12 42 Funcon 4Map (Pink7-12) 0
4Deceleraon 12 43 Not in Use 64
5Vhigh 044 Not in Use 128
6Vmid 045 Not in Use 0
7Manufacturer Version 09 46 Not in Use 0
8Manufacturer ID 36 47 Easy Fluorescent Light Eects 0
9Not in Use 048 Not in Use 0
10 BEMF Feedback Cut-out 049 Forward Light Feature (White) 0
11 Not in Use 050 Reverse Light Feature (Yellow) 16
12 Not in Use 051 Funcon 1 Feature (Green) 32
13 Alternate Mode Funcon Status F1-F8 255 52 Funcon 2 Feature (Purple) 32
14 Alternate Mode Funcon Status F9-F12 053 Funcon 3 Feature (Brown) 32
15 Decoder lock Number 054 Funcon 4 Feature (Pink) 32
16 Decoder Unlock Number 155 Not in Use 0
17 Upper Byte extended Address 056 Not in Use 0
18 Lower Byte extended Address 057 Not in Use 0
19 Consist Address 058 Not in Use 0
20 Not in Use 059 Not in Use 0
21 Consist Address Acve forF1-F8 060 Year & Month of Manufacture 80
22 Consist Address Acve for FL-F9-F12 061 Buon Control 1
23 Acceleraon Adjustment 062 Auto Stopping sensivity voltage 32
24 Deceleraon Adjustment 063 Ditch Light blink rate mer 64
25 Pre-sets for locomove type 064 Constant dimming level 4
26 Not in Use 065 Stay alive me 0
27 Decoder Automac Stopping 066 Motor type 0
28 Not in Use 067 Step 1SpeedTable 1
29 Decoder Conguraon 668 Step 2SpeedTable 10
30 Not in Use 069 Step 3SpeedTable 19
31 Not in Use 070 Step 4SpeedTable 29
32 Not in Use 071 Step 5SpeedTable 38
33 Forward Light Map 172 Step 6SpeedTable 48
34 Reverse Light Map 273 Step 7SpeedTable 57
35 Funcon 1Map (Green0-6) 474 Step 8SpeedTable 66
36 Funcon 2Map (Purple0-6) 875 Step 9SpeedTable 76
37 Funcon 1Map (Green7-12) 076 Step 10SpeedTable 85
38 Funcon 2Map (Purple7-12) 077 Step 11SpeedTable 95
39 Funcon 3Map (Brown0-6) 16 78 Step 12SpeedTable 104

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CV guide and specification for RoS-8D, RoS-218
and RoS-6D decoders
16、CVs and Description (continued)
CV Descripon Default CV Descripon Default
79 Step 13SpeedTable 113 126 DeceleraonRate2 0
80 Step 14Speed Table 123 127 Rate3EndingPoint 0
81 Step 15Speed Table 132 128 DeceleraonRate3 0
82 Step 16Speed Table 142 129 Rate2 Start point 0
83 Step 17Speed Table 151 130 Acceleraon Rate 2 0
84 Step 18Speed Table 160 131 Rate3Start point 0
85 Step 19Speed Table 170 132 Acceleraon Rate3 0
86 Step 20Speed Table 179 133 Power for Buon Control 0
87 Step 21Speed Table 189 134 Buon Control of Motor Circuit 0
88 Step 22Speed Table 198 135 RandomFlicker1 Adjustment 32
89 Step 23Speed Table 207 136 BEMF Map 0
90 Step 24Speed Table 217 137 Not in Use 128
91 Step 25Speed Table 226 138 Not in Use 16
92 Step 26Speed Table 236 139 Not in Use 128
93 Step 27Speed Table 245 140 Single Pulse Strobe o duraon 200
94 Step 28Speed Table 254 141 Single Pulse Strobe on duraon 20
112 Mars Min Brightness 1144 Flashing light on duraon 144
113 Mars Max Bright Time 9145 Flashing light o duraon 48
114 Mars Total Light Cycle 1146 Double Pulse Strobe Long O 200
115 Mars Mid Brightness 6147 Double Pulse Strobe Long On 20
116 Mars Max Brightness 22 148 Double Pulse Strobe Short O 50
117 Ditch Light Blink Rate 3
118 Rotary Min Bright 1
119 Rotary Max Bright Time 5
120 Rotary Total Light Cycle 1
121 Rotary Mid Brightness 15
122 Rotary Max Brightness 25
125 Rate 2 Ending Point 0