Intercall 600/700 Installation & Operation Guide Issue 4.27 Page 78 of 78
FAULT CAUSE
Capacitance Faults (Data Corruption)
F32. Emergency calls don’t say “EMERGENCY!” on bottom line
F33. Wrong type of call displayed (Assistance shows as normal call)
F34. Call type changing (Bleep changes from assist to call with only 1 call up)
F35. Printer printing several ‘lost’ then ‘reset’ devices
F36. Pager (Alphanumeric) bleeping with lost devices.
F37. Calls cannot be accepted. (Display ‘Lock’s up’)
F38. Q’ or ‘q’ appears on display when call(s) accepted
F39. Calls come and go on the LCD display
Network cable cores ‘Doubled up’ – see page 17
Damp Network cables or unit(s)
Booster unit required
Two Call Points with the same address – see page 70
Damaged Network Cable.
Volt Drop Faults (Low Network Volts)
F40. LCD Beeper faint/ display keeps resetting (See Fault F11)
F41. Call points reset spuriously.
Excessive cable runs. – see page 17
Short down long cable run.
Audio Faults
It is very important to be sure that the system is fully functional and that all digital features are working correctly
before attempting to locate and rectify audio faults.
F42. Speech dropping out after a few seconds.
F43. One way speech to or from call point.
F44. One way speech to or from display.
F45. Feedback between call point & display.
Capacitance on Network cabling.
Faulty unit – try substitution with another call point or display.
Two call points set to the same address.
Gain control set too high.
Call Point and display too close or ‘back to back’ on a stud partition.
F46. Buzzing on audio channel when open
Connection between Digital [+/-] and Audio [a/b]
Belden cable not used as recommended
Cable damage
Damp or wet Network Cable
Faulty Audio Unit
Poor Connection.
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