Remote Status:
Connecting a computer running a terminal program such as Hyperterminal set up as
9600-N-8-1 allows control and status information to be passed from or to the distribution
amplifier. Connections for RS-232 and RS-422 are described in the section above.
Hitting Enter (C/R) will cause the DA-422-15T to respond with: DA-422-15 #XXXX>
Where XXXX is the serial number of the unit.
KEYWORDS:
The following are keywords or words that are used by the DA-422-15T to receive status
or issue commands to the unit. The keywords may be upper or lower case. The words
must be typed correctly without back spacing or making corrections. Incorrect typing or
misunderstood words are returned as typed followed by a question mark.
STATUS (C/R) Returns the status of the distribution amplifier.
MASK (C/R) Masks current alarms from being reported every 2 minutes
UNMASK (C/R) Unmasks all alarms.
Entering the keyword “Status” results in the DA-422-15T displaying the current status
including the input source (RS-232 or RS-422).
If a fault is detected, the DA-422-15T will output a fault message identifying the fault.
Every two minutes, the message will be repeated unless the fault is cleared. When the
fault clears, the DA-422-15T will output a message stating the fault has cleared.
If two minute fault reminders are not desired, typing the command MASK will cause the
DA-422-15T to mask all current faults and stop reporting every two minutes. If a fault
that was masked is cleared, the fault clear message will be sent. If the fault re-occurs, the
masking for that port will not be set and the fault will be reported every 2 minutes.
Typing the command “Unmask” will remove all fault reporting masking.
Routine Maintenance:
Remove dust from the cabinet when it accumulates. The front panel may cleaned with a
soft cotton cloth. Use only a small amount of mild soap and water solution to dampen the
cloth if necessary.
No routine checks or adjustments are required.
