Barrier. ED /07/09 Release to production R.P. A ECO N DATE DESCRIPTION OF CHANGE CHG By ISSUE TITLE TC842B1007 AE PRODUCT SPECIFICATION

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1 DESCRIPTION: TC842B1007 AE is a low-profile addressable analog intrinsically safe photoelectronic smoke sensor. TC842B1007 AE is approved by BASEEFA and has an EEx ia IIC T5/T4 Ga (-20 C Ta 40 C/60 C) intrinsic safety rating. The TC842B1007 AE is designed to be used with a shunt-zener or galvanic isolator safety barrier and an IST200 communication translator, both of which must be installed with every intrinsically safe sensor loop. The barrier must have an internal resistance to limit the maximum current through the barrier to 93.3mA. The sensor use the 200/500 Series communication protocol. PW4 is the analog voltage from the photoelectronic chamber. This is the signal used by the panel to make alarm decisions. The device has the following features: LED status is panel programmable and is visible from 360 degrees, magnet test is applicable. SAFE SIDE HAZARDOUS SIDE Control panel IST200 translator Barrier TC842B1007 AE TC842B1007 AE 1 of 5 LIFE SAFETY

2 COMMUNICATION SPECIFICATIONS SPECIFICATION TYP MIN MAX UNIT COMMENTS Data Bit High Voltage Range (1) V Recommended Panel Design Range Data Bit Low Voltage Range (1) V Recommended Panel Design Range Bit Interval high Time (24V) s Bits 1-13: See Figure 1 Bit Interval low Time (0V,5V) s Bits 1-13: See Figure 1 Software Reset Time s Minimum time to reset device (Figure 1) 1) All specifications refer to conditions at the detector head ELECTRICAL SPECIFICATIONS SPECIFICATION MIN MAX UNITS COMMENTS Comm. line supply range V at detector terminals Output driver current - 7 ma Connected to the galvanic isolation barrier Standby 24VDC Supply ua No communication Standby 20VDC Supply ua Communication with LED blink enabled, once every 5s LED current - 3 ma at 24VDC Initial power up time - 3 s PW4 update frequency 4 6 s Number of detectors per loop Barrier resistance = 1200 ohms. 10 detectors Assumes negligible wiring resistance and capacitance between translator and barrier. Galvanic Isolation Barrier. 15 detectors Assumes negligible wiring resistance and capacitance between translator and barrier. ENVIRONMENTAL SPECIFICATIONS 2 of 5 LIFE SAFETY

3 SPECIFICATION MINIMUM MAXIMUM UNITS COMMENTS Air velocity N/A Humidity %RH Temperature C Temperature class T5 Temperature C Temperature class T4 SENSOR PULSEWIDTH DEFINITIONS PW1 Reference PW2 Remote test status PW3 Manufacturer code PW4 Sensitivity PW5 Type identification APPLICABLE TEST METHODS TEST METHOD Test magnet Aerosol Panel remote test COMMENTS 3 of 5 LIFE SAFETY

4 PW LIMITS (PW1 = 150us) It is possible to add an offset to all the PWs to compensate for the presence of the IST200 and the barrier which shorten the PWs. The offset is settable in the EEPROM with 4us steps. ABSOLUTE LIMITS (*) (due to environmental/aging effects) FINAL AUDIT LIMITS (*) MIN MAX MIN TYP MAX PW PW2 (Normal) PW2 (Remote Test) PW3 (1 X PW1) PW4 (Normal) PW4 (Remote Test) PW4 (Alarm) PW4 (Fault) PW Note: all the limits are in microseconds. The device communicates through IST200 and galvanic isolator barrier. (*) All the limits are measured with a 0us offset. 4 of 5 LIFE SAFETY

5 MECHANICAL SPECIFICATIONS SPECIFICATION TYP MIN MAX UNITS COMMENTS Wire Gauge for Screw Terminals Refer to intelligent base product spec. S XX Maximum Terminal Screw Torque Refer to intelligent base product spec. S XX Height 43 mm when used with a B501 base Length or Diameter 102 mm Weight 113 g FIG. 1 - SERIAL COMMUNICATION WAVEFORM WITH QUANTITIES DEFINED Bit high Bit low Supply voltage Data bit high Data bit low PW1 PW2 PW3 PW4 PW5 Bit interval Software Reset Time 5 of 5 LIFE SAFETY