G/01141C
Edition 1
27/04/2012
MD-4931CFA Handbook
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Operator Handbook for CFA Door Phone G/01141C Issue 1 Page
11
4. SPECIFICATIONS
Enclosures Stainless
steel
(Grade 316) and powder coated zincalume
Dimensions Door Plate
Available in two standard sizes:
153mm x 296mm x 2mm or 210mm x 297mm x 2mm.
(other sizes to order).
Hide-away Unit
215 mm x 105 mm x 35 mm.
Power
Requirement
Telephone
line
powered.
Minimum open circuit line voltage 22.5V
Minimum short circuit line current 12mA
Power
Consumption
50
µA
in
stand-by
mode.
20 mA nom. during dialing and conversation.
Operating Temperature Range
-10
+50
C.
Storage
Temperature
Range
-20
80
C ambient.
Humidity, Storage and Operating
To 98% non condensing.
Mean Time Between Failure
> 20 years.
Hands
free
Speakerphone Motorola MC33218AP semi duplex.
Output level
-13.5
0 dBm adjustable.
Frequency
range
300
Hz
3.4 kHz.
Line Interface
Two wire analogue ring in loop out.
Programming
method DTMF
Push Button (Door plate)
Weather resistant tactile
Speaker
Weather resistant mylar cone 32 Ohm 0.5W.
Vandal resistance
Stainless steel mesh, 4 x anti-tamper screws.
Displays
Off hook dialer LED, Tone detect LED.
ACMA Supplier’s Code Number
N468.
Warranty
Two years.
Note: Specifications are subject to change without notice
.
DESIGN TWO THOUSAND PTY LTD IS CERTIFIED TO ISO9001
ACMA Supplier Code:
N468
ERAC Responsible Supplier Number: E1287
