60Section 33: Trouble Conditions• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •T y p i c a l T r o u b l e D i s p l a y sThe word CHECK or TRBL on the Keypad's display, accompanied by a rapid "beeping" at the Keypad,indicates that there is a trouble condition in the system.To silence the beeping sound for trouble conditions, press any key.• A display of “CHECK” or “TRBL” accompanied by a display of “CALL SERVICE” indicates that aproblem exists with the system that eliminates some of the protection. CALL FOR SERVICEIMMEDIATELY.• A display of “CHECK” or “TRBL" accompanied by one or more zone descriptors indicates that aproblem exists with those zone(s)∗. First, determine if the zone(s) displayed are intact and makethem so if they are not. If the problem has been corrected, the display of the zone descriptor(s)and “CHECK” or “TRBL” should disappear. If not, key an OFF sequence (Security Code + Off)to clear the display. If the display persists, CALL FOR SERVICE IMMEDIATELY.• A display of “CHECK” or “TRBL” accompanied by a numeric display of “6XX,” where XX = 01-32,indicates a trouble on a supervised relay (corresponding relay number 01-32).• A display of “CHECK” or “TRBL” accompanied by a numeric display of “8XX,” where XX = 00-30,indicates a trouble on a peripheral device (connected to the panel’s keypad terminals) of acorresponding device address (00-30).• A display of “CHECK” or “TRBL” accompanied by a numeric display of “9XX,” where XX = 00-99,indicates a system trouble exists (RF Receivers, Bell output, etc.). These zones are as follows:970 ............. Bell Supervision988 ............. 2nd RF Receiver – not receiving signals990 ............. 1 st RF Receiver – not receiving signals997 ............. Polling Loop Short• A display of "COMM. FAILURE" at the Keypad indicates that a failure has occurred in thecommunication portion of your system. CALL FOR SERVICE IMMEDIATELY.• A display of "Phone Line Cut" accompanied by rapid beeping at the Keypad indicates that afailure has occurred in the telephone line. CALL FOR SERVICE IMMEDIATELY.• A display of "SYSTEM LO BAT", accompanied by a once per minute "beeping" at the Keypadindicates that a low system battery condition exists. CALL FOR SERVICE IMMEDIATELY.• A display of "LO BAT" and a zone descriptor, accompanied by a once per minute "beeping" atthe Keypad indicates that a low battery condition exists in the wireless transmitter displayed.CALL FOR SERVICE IMMEDIATELY.• A display of "MODEM COMM" indicates that the control is on-line with the central station'sremote computer. The control will not operate while on-line.