These are the setting the Potomac Module Crew uses on DSC100 master and DCS100 booster. The settings have been used since about 1996 with few minor changes over the years.
At some trains show, we do disable OPWS 20 for large layout size.
| OPWS | FAC | PMC | Function oF OPWS | Notes |
|---|---|---|---|---|
| 1 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 2 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown". To use as booster, set to "close". |
Note 1 |
| 3 | t | c | This DCS100's booster is AUTO REVERSING. For non Auto Reversing, set to "close". |
Note 2 |
| 4 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 5 | c | c | Command station master mode always make "closed". To use as booster, set to "thrown" |
Note 1 |
| 6 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 7 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 8 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 9 | t | t | Allows Motorola trinary switch packet command echo for switches 1-256 | |
| 10 | t | t | Expand trinary switches echo range packet from 1-64 to 1-256 when OPSW#9 is "closed" | |
| 11 | t | t | Make trinary switches 57-64 long duration ON period when OPSW#9 is "closed" | |
| 12 | t | t | Motorola trinary/AC digital mobile decoder address 1-80 allowed | |
| 13 | t | t | Loco purge time extended from 200 seconds to 600 seconds | |
| 14 | t | t | Loco purge is disable | |
| 15 | t | t | Purging will force a loco to STOP or 0 Speed | |
| 16 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 17 | t | t | Automatic advanced decoder assisted [FX] consists are disabled | |
| 18 | t | t | Extend the DCS100 booster short circuit shutdown time from 1/8 to 1/2 second | |
| 19 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 20 | t | t | Disabled address 00 or analog stretching for conventional locos | |
| 21 | t | t | OPSW#21 to OPSW#23: set the global system default type for NEW loco selection | Note 3 |
| 22 | t | t | OPSW#21 to OPSW#23: set the global system default type for NEW loco selection | Note 3 |
| 23 | t | c | OPSW#21 to OPSW#23: set the global system default type for NEW loco selection | Note 3 |
| 24 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 25 | t | c | Disable aliasing in this DCS100 | Note 4 |
| 26 | t | t | Enable routes in this DCS100 | |
| 27 | t | t | Disable normal switch commands. a.k.a the Bushby bit | |
| 28 | t | t | Disable DS54 interrogate command at GPON | |
| 29 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 30 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 31 | t | t | Means meter route / switch output rate when not trinary | |
| 32 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 33 | t | c | Allow track power to restore to prior state at power on | |
| 34 | t | c | Allow track to power up at run state, if was run prior to power on | |
| 35 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 36 | t | t | Reset / clear / erase all mobile decoder information & consists | |
| 37 | t | t | Erase / clear all routes | |
| 38 | t | t | Erase / clear the loco roster | |
| 39 | t | t | Clear all internal memory states, including section. OPSW#36, 37, 38 clear | Note 5 |
| 40 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 41 | t | t | Diagnostic click when valid Loconet commands incoming, & routes being output | |
| 42 | t | t | Disable 3 beeps on Purging a loco | |
| 43 | t | t | Disable Loconet Update of command station's track status | |
| 44 | t | c | Expand slot refresh area from 22 (Big Boy compatible) to 120 | |
| 45 | t | t | Disable reply for switch state request | |
| 46 | t | t | Reserved, DO NOT CHANGE. Set to always "thrown" | |
| 47 | t | t | Program track is brake signal generator when not in Programming Mode | |
| 48 | t | t | OPSW#48 to OPSW#999 are always to be "thrown" unless otherwise noted! |
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Notes:
Note 1: To setup a DSC100 into plain old DB100 mode (booster mode only):
Note 1A: To return the DCS100 back to command station:
Note 2: For mainline use (double track, each with it's own booster) with DB100 (or DCS100 in booster mode), the unit should be set for non-reversing. Yards with wyes connecting with the main line should be set reversing, otherwise it should be set to non-reversing.
Note 3: PMC is set for "t-t-c 128 step FX mode". Other optional setting are: t-t-t 128 Step mode, c-t-t 14 step mode, t-c-t 28 step mode, t-t-c 128 step FX mode , t-c-c 28 step FX mode, t-c-c Motorola Trinary
Note 4: Aliasing feature is turn off to prevent accidental setting while using either '00' or any other two digit number.
Note 5: Be caution with this item as it will reset the DCS100 to factory settings. To clear locomotive number, use only OPWS #36 and OPWS #38 after each show or running session.
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