Johnson Systems DMX 6-PORT MERGER - Manual (Page 15)

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System Status • LED Indicators
RUN (Green)
Illuminates when the system is powered on and the microcontroller
is functioning normally.
RX1, RX2, RX3, RX4, RX5, RX6 (Green and Yellow)
The green LED illuminates when the DMX input port is powered on and the
isolated power supply is functioning normally. The yellow LED illuminates
when valid DMX is received and flashes when invalid DMX is received.
TX (Green and Yellow)
The green and yellow LED’s illuminate when any of the DMX input ports
are powered on and the system is transmitting DMX.
System Status • LCD Display
The top line of the LCD display shows the system is a DMX “6-PORT”
MERGER, unless the system configuration menu items are being accessed.
The bottom line of the LCD display shows the number of valid DMX inputs
being received and merged (“MERGE 0” thru “MERGE 6”), unless the system
configuration menu items are being accessed, or abnormal system status is
detected and displayed as follows:
RTC ERR!
Displayed when the system detects a runtime counter (RTC) error. This
occurs when there is an invalid hard-key code, and the runtime counter
is greater than 2160 hours (90 days). Refer to menu item “HARD-KEY”
on page 17 for further details.
USB ERR!
Displayed when the Tech Port is enabled and connected to a PC with
the terminal emulator running, and then a USB error occurs. When using
the Tech Port to monitor DMX via a PC, be sure to read and follow the
instructions included in the USB Tech Port Operation section starting
on page 19 of this manual.
LOCKED!
Displayed when an attempt is made to access the system configuration menu
items and the programming switches are locked out. To toggle between
“LOCKED!” and “UNLOCKED” press and hold down the “EXECUTE” and
then “ESCAPE” switches at the same time for 4-5 seconds.