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Guardian Telecom Inc.
Installation and Operation
Model CIR-41
Page 7
Engineering Specifications
ELECTRICAL PERFORMANCE
AUDIBLE RANGE FREQUENCY RESPONSE 300 – 3400 HZ
TRANSMIT OBJECTIVE LOUDNESS RATING (TOLR) -38 +/- 3 dB
RECEIVE OBJECTIVE LOUDNESS RATING (ROLR) TYPICAL 50 +/- 3 dB
SIDE TONE OBJECTIVE LOUDNESS RATING (SOLR) TYPICAL 11 +/- 3 dB
RINGER OUTPUT 75 dB MAX
FCC RINGER EQUIVALENCE 0.8B
SET IMPEDANCE 600 OHMS NOMINAL
MAXIMUM LOOP 15,000 FT (4,600 M) OF 22 AWG COPPER
ELECTRICAL REQUIREMENTS
RINGER SENSITIVITY 40 – 100 V, 16 – 25 HZ
LINE VOLTAGE 24 – 56 VDC
LOOP CURRENT 20 - 120 MA
CONNECTION METHOD TERMINAL STRIP OR RJ11 CONNECTOR
ENVIRONMENTAL
TEMPERATURE -40
O
TO +60
O
C (-40
O
TO +140
O
F)
HUMIDITY 0 TO 95% RH
DUSTPROOF FULL ENCLOSURE GASKET
MECHANICAL
HOOK SWITCH (CRADLE SWITCH) LIFE >1 000 000 OPERATIONS
BODY AND FACEPLATE CONSTRUCTION 16 GAUGE STEEL, ZINC DICHROMATE PLATED
AND POWDER COATED
DIMENSIONS (H X W X D) 9 X 5 X 5.2 INCHES (229 X 127 X 132 MM)
NET WEIGHT 5 LBS (2.3 KG)
HANDSET MATERIAL HIGH IMPACT ABS
MICROPHONE NOISE REDUCING ELECTRET
OPTIONAL MICROPHONE NOISE CANCELING DYNAMIC
RECEIVER HEARING AID COMPATIBLE
STANDARD MOUNTING VERTICAL WALL
WIRING ACCESS REAR OPENING 1.5 X 1.5 INCHES ( 38 X 38 MM)
HARDWARE MATERIAL STAINLESS STEEL