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826
REPLACING A DECODER Ref. 826/3 WITH A
DECODER Ref. 826/23
•
Remove the central plastic spacer from the old decoder chassis.
•
Place the new decoder 826/23 on the chassis as illustrated and insert
a 2.9 x 9.5 mm self-tapping screw for plastics with associated washer
through the hole. Tighten the screw as indicated by the arrows.
•
Write down the codes programmed in the decoder on the label
provided for this purpose.
•
Install the old decoder cover on the new decoder and start the
screws. Do not tighten fully.
•
Move the selector switch at lower right to position R to set the
decoder for use with buzzer type doorphones (see the instruction
manual).
REPLACING A DECODER Ref. 826/13 WITH A
DECODER Ref. 826/23
Mechanical componentry of decoders 826/23 is compatible with that of
the previous model 826/13 units.
Move the selector switch at lower right to position “E” for use with
electronic call tone signaling doorphones, or to position “R” for use with
conventional buzzer type doorphones (see the instruction manual).
NOTICE: For both types of doorphone, bear the following points
in mind:
1) Wires must be connected to terminal MU in the same order as on
terminal ME (1 2 -24 D + 24).
2) If buzzers do not operate correctly after replacing the decoder,
the apartment station equipment is no longer suitable for further
service because of excessive wear and must be replaced.
3) The 24 V buzzer Ref. 826/108 cannot be used with this decoder.
If connected doorphones are equipped with this buzzer, it must be
disabled and the standard buzzer used.
FOUR-PORT DECODER Ref. 826/23
REPLACING A DECODER Ref. 826/3 WITH A DECODER Ref. 826/23
REPLACING A DECODER Ref. 826/13 WITH A DECODER Ref. 826/23
F
O
U
R
-PORT DECODER
Ref.
826
/2
3
DECODER
S
F
OR DOORPHONE AND/OR
V
IDEO DOORPHONE APART
M
ENT
S
TATION
S
1
- 58
MT124-019
Summary of Contents for 826 DIGITAL CALL SYSTEM
Page 1: ...Model 826 DIGITAL CALL SYSTEM http www urmetdomus com e mail info urmetdomus it MT 124 019 ...
Page 9: ...1 1 MT124 019 Section 1 PRODUCT ...
Page 79: ...Section 2 INSTALLATION DIAGRAM 2 1 MT124 019 ...
Page 80: ...CONTENTS Model 826 DIGITAL CALL SYSTEM 2 2 MT124 019 ...
Page 83: ...826 PARALLEL CONNECTIONS 2 5 MT124 019 ...
Page 89: ...826 DOORPHONE SYSTEMS 2 11 MT124 019 ...
Page 103: ...826 DOORPHONE SYSTEMS WITH GUARD DOOR SWITCHBOARD STATION 2 25 MT124 019 ...
Page 111: ...826 VIDEO DOORPHONE SYSTEMS 2 33 MT124 019 ...
Page 118: ......