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9
Connections and Settings
The following table lists all the LEDs located on the DTC-300A board and states the function of
each LED.
Table 1 DTC-300A List of LEDs and their Functions
LEDs
FUNCTION
Relay Line 1
Located below Line 1 terminal block. When Line 1 relay is energized, this green
LED will illuminate steady.
Relay Line 2
Located below Line 2 terminal block. When Line 2 relay is energized, this green
LED will illuminate steady.
Common Trouble
Steady amber for any troubles on the DTC-300A and/or the Fire Alarm panel.
CPU Fail
Steady amber for any on board CPU trouble.
Ground Fault
Steady amber for any ground faults on the DTC-300A main board.
Line 1
Telephone Line 1 status indicator LED; Red steady when the line is in use, Amber
steady when there is a line fault.
Line 2
Telephone Line 2 status indicator LED; Red steady when the line is in use, Amber
steady when there is a line fault.
Power ON
Green LED is ON steady when power is supplied to the board.
The following table lists the user jumpers available on the DTC-300A and their functions.
Table 2 DTC-300A List of Jumpers for Operation and Configuration
JUMPER NUMBER
JUMPER FUNCTIONS
JW1
RESET PASSCODE: Default is normally open. TO RESET PASSCODE: Place jumper
here and power down the DTC-300A by disconnecting the 24V power source or power
down the fire alarm panel (AC and Batteries), then power back up to revert to the
default passcode. After the passcode is reset, remove the jumper.
JW2
BLOCK REMOTE CONFIGURATION: Default is normally open to BLOCK remote
configuration via modem, PC with a UIMA converter module or using the LCD and
keypad at the DTC-300A. A trouble is initiated when the jumper is ON showing that the
DTC-300A is in configuration mode. Place jumper here to ALLOW any type of
configuration. Remove jumper once configuration is complete, trouble will restore.
JW3
GROUND FAULT DETECTION: Default has jumper pins normally shorted allowing
ground fault detection on the DTC-300A. Remove this jumper to DISABLE ground fault
detection (Ground Fault LED on the DTC-300A will not operate). The Fire Alarm Panel
Ground Fault is not affected.
JW4
TROUBLE RELAY: Short pins 1 and 2 to select the TROUBLE OUTPUT relay contacts
as normally closed(N.C.) or short pins 2 and 3 to select the TROUBLE OUTPUT relay
contacts as normally open (N.O.). Default has pins 2 and 3 shorted, check fire alarm
panel for proper setting required for the TROUBLE OUTPUT contacts.
Summary of Contents for DTC-300A
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