PSX-AR Manual Rev: P Software Rev: N
19
K. Special Programming Instructions
Specific DCC Systems need to follow specific programming sequences to reliably
program a PSX-AR. See Section M for specific system instruction
All systems:
Program CV’s using POM. Do not use Program track or accessory
programming.
Digitrax:
Install the Digitrax Configuration Jumper wire from Terminal
J7.3 to J7.4
By installing the Digitrax Configuration jumper connection, all aspects of the PSX-AR series
are optimized to operate with Digitrax equipment. This includes the DCS50, DCS51, DCS100,
DCS200, DCS210, DCS240 and the associated booster only units. As a result of these
changes, it is recommended that any layout using Digitrax equipment should install this
jumper. Note that the configuration jumper does NOT affect the trip current setting. You will
still need to select the trip current you want to use.
When the J7-3 & J7-4 jumper is installed and the PSX-AR is placed in Program mode, the
default addresses of the PSX-AR are automatically changed to allow the Digitrax system to
access these functions directly:
•
997 [on/off – first address]
•
998 [photo cell arm – second address]
•
999 [switch control PSX-AR only – third address]
If the PSX-AR is reset [CV63=42], the default address will be 2042, 2043 & 2044. These
addresses are not accessible to the Digitrax equipment. Under this condition it is necessary
to:
1. Remove power from the PSX-AR while in Program mode
2. Re-apply the power in Program mode with the Digitrax Configuration jumper on pins
J7-3 & J7-4
3. This will program the Digitrax default addresses again [997, 998, 999]
Note that if the J7-3 & J7-4 jumper is absent and the PSX-AR is placed in program mode, the
997, 998, & 999 sequence will be changed back to the normal default of 2042, 2043, & 2044.
If the PSX-AR has been programmed to an address other than one of the two default address
sequences, the presence or absence of the jumper will have no effect on the stored
addresses.
At power up, Digitrax systems place several commands on the track bus intended for use by
other Digitrax accessories. These signals appear to the PSX-AR as an accessory address. In
order to prevent these addresses from incorrectly programming the PSX-AR, a PSX-AR will
not accept a command to program an accessory address above 999 when the Digitrax
Configuration Jumper is installed.
With the Digitrax Configuration Jumper installed, the PSX-AR uses a different turn on
algorithm that enhances the ability of the Digitrax equipment to turn on multiple sound
decoders without difficulty.
For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates
the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
