REAR PANEL LIGHT SWITCH: All Series II units feature a rear rack BNC socket which will accept any 12 VAC (0.5A) gooseneck lamp as- sembly, (such as the Furman GN-LED or GN-I). Simply slide the BNC plug over the socket and rotate clockwise until the connector snaps into the locked position. The rear rack lamp can be powered on or off with the rear light power switch located on the far left of the front panel.
START ON/OFF SEQUENCE: This pushbutton switch is used only when the key lock switch is in REM position and the PS-PRO II is in Mo- mentary Mode. It then acts the same as any other remote momentary switch that may be connected to the rear panel terminal strip. If the switched outlets are on, pushing it begins an OFF sequence. If they are off, pushing it begins an ON sequence. Do not use this switch when in Maintained Mode.
PROTECTION OK: This LED is normally on when the power to the PS-PRO II’s outlets is switched on. It monitors the integrity of the pro- tection devices and reports if the protection is compromised. If an extremely large spike is en- countered that exceeds the PS-PRO II’s capac- ity, the main group of input protectors will blow an internal fuse, causing the indicator to go out. If this LED is not lit when the power switch is on, full protection is not functioning. Spike protection may still exist, but will have a reduced capacity to absorb current. If this LED is not lit, please contact the Furman Service Department.
EXTREME VOLTAGE SHUTDOWN: This LED indicator is normally off. It monitors a hazard common in the entertainment industry—wiring
faults—for example, accidental connection to 220V.
The PS-PRO II senses voltages that are so high or low that operation would be impossible (under 80V or over 140V) and shuts the power down before damage can occur. Upon initially applying power to the PS-PRO II, this indicator will be lit if the unit is receiving below 80 volts or more than 140 volts, and power will not be applied to the PS-PRO II’s outlets. If the unit has been operating with an ac- ceptable input voltage and then the voltage goes out of the acceptable range, the PS-PRO II will shut down power to all of its switched outlets simulta- neously, without observing the OFF delay cycle, and this LED will begin flashing. When power re- turns to within the acceptable range, the PS-PRO
IIwill observe its ON delays as it returns power to its switched outlets, and this LED will go out.
NOTE: If the mains power is below 80 volts and has caused the PS-PRO II to remove power from its outlets, the PS-PRO II will not restore power to its outlets until the mains voltage is more than 90 volts. If the mains power is above 140 volts and has caused the PS-PRO II to re- move power from its outlets, the PS-PRO II will not restore power to its outlets until the mains voltage is less than 130 volts. The reason for this is to prevent the power from oscillating on and off in marginal conditions.
DELAY ADJUST: This screwdriver-adjustable trimpot allows you to set the total turn-on/turn-off delay time from 1 to 60 seconds, as explained on page 6. The trimpot adjusts both the on delay and off delay times simultaneously. Turn the trimpot clockwise to increase the on and off delay times; turn the trimpot counterclockwise to decrease the delay times.
