MERG DCC System - Downloads
Last updated 23 September 2019
Copyright for items on this page is retained by the authors identified.
The use or misuse for the sale, design, supply, process, installation, delivery, test, repair, servicing, and alteration of the designs, instructions, computer code, photographs, circuits, and any other information that appear on this web site is entirely at the risk of the user or visitor to the web site. The information is made available in good faith without warranty of any kind strictly on the basis that no liability will attach to the Model Electronic Railway Group (MERG), its officers and members.
These pages are a resource area for projects members are working on or have completed and wished to make publicly available. Some of these projects have resulted in MERG kits but nothing on these pages should be taken as definitive information about the kits, members should check the kit pages for up to date information on the kits.
The files in the matrix below provide the information needed to construct the MERG dcc system. For anyone having trouble downloading the source code .asm files they areincluded in .zip packages. (The .zip includes all files for the item concerned). For more general information on MERG DCC visit the main DCC page
Current MERG DCC system kits
| Description Parts list |
Schematic | PCB layout | Component layout and images | Source code Hex code |
| CBUS Command Station (CANcmd) Kit 91 - Full zip file | ||||
| CMD_parts.xls 15-Aug-10 |
d>CANcmd_sch.pdf 15-Aug-10 |
CANcmd_pcb.pdf 15-Aug-10 |
Image | CANcmd_j.hex 15-Aug-10 |
| CBUS Hand Controller (CANCAB) Kit 92 - Full zip file | ||||
| CAB_Insts.pdf Cab_parts.xls 15-Aug-10 |
d>CAB1A_sch.pdf 15-Aug-10 |
CAB1F_pcb.pdf 15-Aug-10 |
Image | CAB1u.asm 15-Aug-10 |
| New Booster (NB1B) Kit 59 | ||||
| Description.pdf 23-Jan-11 |
Schematic.pdf 23-Jan-11 |
Layout.pdf 23-Jan-11 |
Image 17-Aug-07 |
n/a; |
| Accessory Encoder (ACE) kit 51 - ace2b.zip | ||||
| ace2btxt.pdf 1-Apr-03 ace2parts.xls 1-Apr-03 |
ace2bsch.pdf. 1-Apr-03 |
ace2bpcb.pdf 1-Apr-03 |
Image. | ace3a.asm ace3a.hex 18-Jan-06 |
| Accessory decoder (ACC2) Kit 52 - acc.zip | ||||
| acc2btxt.pdf 1-Apr-03 acc2parts.xls 1-Apr-03 acc5txt.pdf 6-Aug-05 Software description 27-Jan-04 |
acc2bsch.pdf 1-Apr-03 |
acc2bpcb.pdf 4-Jun-03 |
Image | acc4.asm acc4.hex 6-Aug-05 acc5.asm acc5.hex 6-Aug-05 dbacc5.asm dbacc5.hex 11-Nov-01 |
| Accessory decoder for Tortoise etc. (ACC3) Kit 53 | ||||
| acc3sch.pdf 13-Feb-03 |
acc3pcb.pdf 13-Feb-03 |
Image | As above | |
Other MERG DCC Projects
Items listed here are projects that have not been produced as kits as well as earlier kits that have been replaced by the current kits above.
Click here for original MERG DCC system overview PDF
| Description Parts list |
Schematic | PCB layout | Component layout | Source code Hex code |
| Combined Command Station, Booster and Power Supply (BC1A) - bc1a.zip - MERG kit 42 (discontinued) | ||||
| bc1adoc.pdf 6-Jan-01 bc1apart2.xls 12-Dec-02 |
bc1asch-e.pdf 7-Apr-04 |
bc1a-epcb.pdf 7-Apr-04 |
bc1a_2.asm 11-Feb-06 bc1a_2.hex 23-Feb-06 |
|
| Hand Controller - Mark 2 (Available while stocks last) hs2.zip - MERG kit 43 | ||||
| Parts list.xls 24-Feb-03 |
Schematic.pdf 8-Jan-03 |
hs2bpcb.pdf hs2bcut.pdf 8-Jan-03 |
hs2lbl1.pdf hs2blay.pdf 8-Jan-03 |
|
| New Booster - NB1A | ||||
| Description.pdf 12-Feb-09 |
Schematic.pdf 11-May-10 |
Layout.pdf 10-May-10 |
Picture.jpg 17-Aug-07 |
|
| Original Command Station - dcc8.zip | ||||
| dcc81.pdf 28-Nov-99 |
dccstn8d.pdf 8-Jul-99 |
dcc8stnu.pdf 22-Nov-99 |
dcc8g.asm dcc8g.hex 29-Feb-00 |
|
| Booster (Boost5) - booster.zip | ||||
| booster.pdf 7-Jul-99 |
boost5g.pdf 7-Jul-99 b5pwrstg.pdf 7-Jul-99 |
b5pcb.pdf. 7-Jul-99 boost5.pcb |
||
| Hand controller - Mark 1 - hsc.zip | ||||
| dcc8hscl.pdf 20-Jan-00 hsparts.xls 10-May-01 hsparts.htm 10-May-01 |
dcc8hsd.pdf 29-Jan-01 |
dcc8hsg3.pdf. 29-Jan-01 hsspcb.pdf 8-Jul-99 dcc8hsg6.pcb 8-Aug-02 |
hslbl.pdf hslblm3.pdf 20-Jan-00 hslblkn.gif 8-Aug-02 |
|
| Accessory Encoder PC adapter board - MERG kit 54 (Discontinued) | ||||
| APC1_txt.pdf 18-Aug-08 |
APC1_sch.pdf 10-Nov-05 |
APC1_pcb.pdf 10-Nov-05 |
Ace_PC1.asm Ace_PC1.hex 18-Aug-08 |
|
| Auto reverse and cutout module (ARC) arc.zip | ||||
| arc.pdf 26-Jan-02 arcparts.xls 31-Jan-02 |
arc1sch.pdf 26-Jan-02 |
arc1pcb.pdf 26-Jan-02 |
arc1.asm 26-Jan-02 arc1.hex 26-Jan-02 |
|
| Cutout module (BCO1) - BCO1.zip | ||||
| Description.pdf | Schematic.pdf | Circuit board.pdf | Software Hex file, ASM file |
|
| Cut out and detection module (BDC1) | ||||
| Description .pdf | Schematic.pdf | Board.pdf | Picture.jpg | |
| Block Occupancy Detector (BOD1) | ||||
| Description.pdf | Schematic.pdf | Board.pdf | Picture.jpg | |
| Accessory decoder (ACC6) - revised version for Fulgurex etc point motors | ||||
| ACC6_txt.pdf 04-Feb-07 |
ACC6_sch.pdf 04-Feb-07 |
ACC6_pcb.pdf 04-Feb-07 |
Acc6_3.asm 23-Mar-07 Acc6_3.hex |
|
| Programmer - prog.zip - MERG kit 41 (Discontinued) | ||||
| Operating instructions 7-Jan-07 prognlb.pdf 15-Jul-99 progpa~1.pdf 12/12/02 |
dccprog1.pdf 15-Jul-99 dccprog2.pdf 15-Jul-99 |
progpcb.pdf 22-Jul-99 prog.pcb |
Box label and cutting template 23-Jun-08 |
for 16F84 (obsolete) progg1H.asm 07-Jan-07 progg1H.hexfor 16F628A (current) progg2K.asm 21-Sep-08 progg2K.hex |
MERG DCC Locomotive Decoders
Most of these were produced as kits for a few years but needed very good soldering skills and the reducing price of commercial decoders removed the cost advantage. The dec12/13 series do give very good performance
| Description Parts list |
Schematic | PCB layout | Component layout | Source code Hex code |
| Loco Decoder dec10-11.zip | ||||
| decoder2.pdf 26-Apr-00 make101.pdf 26-Apr-00 INTDEC10version103.pdf 3-Feb-01 software desription 27-Jan-04 |
decod10b.pdf 3-Apr-00 |
dec10bpc.pdf 7-Apr-00 |
dec10pc2.pdf 7-Apr-00 decod10 image 7-Apr-00 |
decod10d.asm decod10d.hex 8-Feb-01 mbint105.asm mbint105.hex 27-Jan-04 16f628.asm 1-Apr-03 |
| Small loco decoder - dec10-11.zip | ||||
| As loco decoder above | dec11sch.pdf 14-Jun-00 |
dec11pcb.pdf 28-Apr-00 |
dec11pc2.pdf, 20-Apr-00 decod11 image 20-Apr-00 |
As loco decoder above |
| Small loco decoder with feedback and stealth - dec12-13.zip | ||||
| dec131tx.pdf 9-May-02 dec131~1.pdf 10-Jan-03 |
de12dsch.pdf 27-Apr-01 |
de12dpcb.pdf 27-Apr-01 |
decod12 image 27-Apr-01 |
dec133a.asm dec133a.hex 14-Mar-03 |
| Loco decoder with feedback and stealth - dec12-13.zip | ||||
| As small loco decoder above | decod13.pdf 10-May-01 |
dec13pcb.pdf 10-May-01 |
As small loco decoder above | |
| Flash unit - flash.zip | ||||
| flash.pdf 5-Feb-02 |
flashsch.pdf 5-Feb-02 |
flashpcb.pdf 5-Feb-02 |
flash12a.asm 17-May-02 flash12a.hex |
|
Mike Bolton