Thermal control board (IS-F08) user manual.
Features
Supports up to 8 fans + 1 fan monitor. 2 Temperature sensors. 3 temperature level setting. Flashing LEDs & Alarm goes off when overheating or fan failure occurs. Dimension: 40 x 80mm. Especially designed for most 19" rackmounts. If used in a standard PC chassis, this device will be loose and circuit board would need to be protected to prevent contact with the chassis and avoid short circuit.			To be connected to a power supply Molex connector.
Installation procedure
Fans     Count number of fans to be connected to the thermal control board and set up the jumpers as follow.   Connect all fans starting from connector number 1 and without skipping any connectors. (Up to 8 fans can be connected.)     Note:    Jumpers should be set and fans should be connected before connecting the power. Failure to do so, may create a fault condition.
Heat sensors (2 pcs)     Chose the temperature to be the one to trigger the alarm and set the jumpers as follow.     If the alarm goes off, the setting chosen may be too low. Check inside temperature of chassis and set up again choosing a   higher temperature setting.     Test the temperature sensor by placing it in a hot environment.     If the alarm does not go off,   The sensor may be faulty. Try the second one. If the second one still does not trigger the alarm, the thermal control board   itself may be faulty and need to be replaced.   An alarm sound and a flashing LED while the temperature sensors are not connected are also sign of a faulty device.
Thermal control board diagram		FAN jumpers setting FAN. J3 J2 J1 1 Fan       2 Fan     ■ 3 Fan   ■   4 Fan   ■ ■ 5 Fan ■     6 Fan ■   ■ 7 Fan ■ ■   8 Fan ■ ■ ■       TEMP. jumpers setting TEMP. H M L 50°     ■ 60°   ■   70° ■           DISPLAY   NORMAL FAIL T1 Themal-1 Condition LED Light Flash T2 Thermal-2 Condition LED Light Flash FN Fan Condition LED Light Flash AR Alarm Reset Switch