G/01141E
Edition 1
27/04/2012
MD-4900CFA Handbook
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Operator Handbook for CFA Door Phone G/01141E Issue 1 Page
3
2. INSTALLATION
2.1 INSTALLATION BLOCK DIAGRAM
0
*
Front Door Plate
with push button,
mic & speaker
Hide-away Unit
MASTERCALL DOOR PHONE
MD-4900
Telephone Line
or PABX
Connection
Switched Output
(eg Door Latch)
Alarm
Input
Telephone
Network
4
MASTERCALL
DOOR PHONE
CALL
RS232
CFA DOOR PHONE – MD-4900CFA