Johnson Systems JS-ICON Series Dimmer/Relay Rack (2410,2413,1220,1210/620) - Manual (Page 18)

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7. DMX MODE Configure the mode of the on-board DMX protocol manager.
There are five different mode settings for the DMX protocol manager.
Priority A (PTY A) and Priority B (PTY B) modes are intended for the implementation of a
backup DMX source. Priority A (PTY A) sets the DMX A input as the priority, and ignores the
DMX B input when the DMX A input is active. Priority B (PTY B) sets the DMX B input as
the priority, and ignores the DMX A input when the DMX B input is active.
Merge (MERGE) mode combines both DMX inputs with highest-takes-precedence (HTP)
operation. Merge mode allows for simultaneous DMX control of the dimmers from both
inputs, and is the default for the system.
Dual Universe DMX (DMX A+B) mode provides a method to combine two universes of
DMX within one system. It permits two independent DMX sources to be active on the DMX
inputs, with each having a separate DMX start address. The DMX inputs are merged and
DMX-B is offset by the number of DMX-A channels programmed via the ADDRESS menu
(see page 17 for further details). This feature is typically used when a system is at the end
of one DMX universe (DMX-A) and the beginning of another (DMX-B).
Two Room (2 ROOM) mode enables the room (A or B) assignment for each of the dimmer
outputs via the 2 RM SET menu.
PTY A Press EXECUTE to toggle into Priority A (PTY A) mode.
PTY B Press EXECUTE to toggle into Priority B (PTY B) mode.
MERGE Press EXECUTE to toggle into Merge (MERGE) mode.
DMX A+B Press EXECUTE to toggle into Dual Universe DMX (DMX A+B) mode.
2 ROOM Press EXECUTE to toggle into Two Room (2 ROOM) mode.
Press ESCAPE or RESET to exit the menu.
Any change in the configuration is automatically saved.
NOTE: DMX O/P must be set to OFFSET mode for this menu to function.
8. 2 RM SET Set the two room assignment for each of the dimmer outputs.
This menu is used to assign each of the 24 dimmer outputs to room “A” or room “B”.
Dimmer outputs assigned to room “A” are controlled via the DMX-A input. Dimmer outputs
assigned to room “B” are controlled via the DMX-B input. This creates separation within
the dimmer rack and makes a single dimmer rack function as though it is two independent
dimmer racks. When used in conjunction with the DC PATCH menu, the dimmer rack
can be configured for sequential DMX control of two rooms, even if the dimmer room
assignments are not sequential.
DMX MODE must be set for 2 ROOM operation for this menu to function.
Press EXECUTE to enter the menu and activate 2 RM SET mode.
DIM 01 A Displays the dimmer (DIM) output (01) and the room assignment (A).
DIM 24 A Press MENU ( ) to select a different dimmer output from 01 to 24.
DIM 24 B Press EXECUTE to toggle the room assignment from A to B.
Press ESCAPE or RESET to exit the menu.
Any change in the configuration is automatically saved.
NOTE: Scene mode (SCENESET) will only activate/control dimmers assigned to room “A”.
NOTE: DMX O/P must be set to OFFSET mode for this menu to function..
9. DMXA TRM Enable or disable termination on the DMX A input.
Activates and deactivates a 120Ω termination resistor. DMX termination is indicated on
the LCD display when DMX is being received. When the DMX A input is not terminated
(DISABLED) the LCD display will read AXXXBXXX. When the DMX A input is teminated
(ENABLED) the LCD display will read XXXBXXX.
ENABLED Press EXECUTE to toggle termination from ENABLED to DISABLED.
DISABLED Press EXECUTE to toggle termination from DISABLED to ENABLED.
Any change in the configuration is automatically saved.
NOTE: Ensure only the last (end-of-line) DMX receiving device is terminated!
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