Messages About Faults; Technical Data - Laskomex CD-2502 Series Installation, Service And Programming Manual

system built on the basis CD-2501 or CD-2502, where to one of the staircases the
service of the next staircase should be added entry phone CD-2501/U or CD-2502
can be replaced with entry phone CD-3100.
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Messages about faults

The doorphone CD-2502 can signal the following faults:
EC: Means that two or more infrared beams are damaged or covered
E2: Means short-circuit of uniphone line. Installation should be checked, short-
circuit should be eliminated or damaged uniphones should be replaced. By
measuring current input on uniphone line, the nature of fault can be determined.
E0: This message means that system memory EEPROM is damaged in the
electronic cassette.
EEr: Means an error in recording or in reading memory with system settings or
codes of combination lock
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Technical data

Power supply of EC-2502 electronic cassette
Only from recommended power supply feeder (see subsection "Power supply",
page 8 and the figure on page 48):
– 14,5V/0,8A (terminals AC1 and AC2)
– 12V/1A (terminals AC3 and AC4)
ZS-K-25/01 or TSZZM 25/021M power supply feeder of electronic
cassette - description of wires
brown
blue
Power supply of CP-2502 external panel
Only from EC-2502 electronic cassette - 12V/250mA (terminals K1-K3)
white
U
SEC1
red
U
SEC2
U
PRI
brown
brown
U
SEC3
brown
U = ~230V
PRI
U = 12,5V / 0,8A
SEC1
U + U = 14,5V / 0,8A
SEC1 SEC2
U = 12V / 1A
SEC3
48
14 TECHNICAL DATA