Tocsin 700 Interface wiring...continued
4-20mA IN
+24V DC
GND
ASSEMBLY
NOTE LAST DEVICE IN LINE TO BE FITTED WITH
5K6 RESISTOR AS INDICATED
NOTE IF SUPPLIED IN THIS FORMAT THE INPUT
CONNECTORS INCORPORATE PROTECTION
DIODE. DO NOT USE WITHOUT THIS
CONNECTOR/DIODE
INTERFACING TO FIRE AND SMOKE DETECTOR
DIODE BASES.
FIRE AND SMOKE INPUTS (FACTORY OPTION)
NOTE THESE DETECTORS ARE RESET BY
INTERRUPTION OF THE POWER SUPPLY. THE
TOCSIN 700 WILL DO THIS IF THE CHANNEL IS
SELECTED AS A ‘FIRE’ AS A GAS TYPE, RELAY
OUTPUTS MUST BE SET AS LATCHING. NOTE
THAT THE POWER IS SUPPLIED TO THE INPUT
CONNECTORS IN BANKS OF FOUR. IF MIXING
WITH GAS DETECTORS SEGREGATE THE FIRST
FOUR INPUTS AS GAS DETECTORS AND THE
SECOND FOUR INPUTS AS SMOKE DETECTORS.
THIS IS A FACTORY FIT OPTION AND MUST BE
REQUESTED WHEN ORDERING THE CONTROL
PANEL. CHANNEL HARDWARE CONFIGURATION
IS DIFFERENT TO STANDARD 4-20mA INPUTS
3
1
6
5
4SD DIODE BASE
3
1
6
5
4SD DIODE BASE
3
1
6
5
4SD DIODE BASE
NOTE: TYPE INDICATED IS TYPICAL OF NITTAN ST-I
CONVENTIONAL OPTICAL SMOKE OR HEAT DETECTORS. OTHER
MANUFACTURER CONNECTIONS MAY VARY.
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