Guardian Technologies WRT-10-A - Manual (Page 8)

Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Page 8
Engineering Specifications
*E LECTRICAL P ERFORMANCE
A UDIBLE R ANGE F REQUENCY R ESPONSE 300 – 3400 H Z
D IALING M ETHOD DTMF OR 33/66 P ULSE A T 10 PPS
S END L OUDNESS R ATING (SLR) dB S HORT 8 dB +/- 4 dB
R ECEIVE L OUDNESS R ATING (RLR) dB S HORT -4 dB +/- 4 dB
S IDE T ONE M ASKING R ATING (STMR) >11 dB
R INGER O UTPUT 75 dB M AXIMUM
R INGER E QUIVALENCE 0.5
S ET I MPEDANCE 600 O HMS N OMINAL
M AXIMUM L OOP 15,000 FT (4,600 M ) OF 22 AWG C OPPER
E LECTRICAL
R INGER S ENSITIVITY 40 – 100 V, 16 – 25 H Z
L INE V OLTAGE 24 – 56 VDC
L OOP C URRENT 20 - 120 mA
C ONNECTION M ETHOD
S URGE A RRESTOR / T ERMINAL BL OCK
F USE ¼ A MP 250 V OLT 3AG F AST B LOW
E NVIRONMENTAL
W EATHERPROOF E NCLOSURE NEMA 3R
T EMPERATURE -40 O
TO +60 O C (-40 O
TO +140 O F)
H UMIDITY 0 TO 95% RH
D USTPROOF F ULLY GASKETED FACEPLATE & W EATHERPROOF KEYPAD
C ORROSION R ESISTANT MIL-STD-810E S ALT F OG
M ECHANICAL
H OOK S WITCH (C RADLE S WITCH ) L IFE >1 000 000 O PERATIONS
B ODY C ONSTRUCTION GE V ALOX 357
®
E NGINEERING P OLYMER
D IMENSIONS 12 X 9.6 X 3.9 INCHES (305 X 245 X 99 MM )
N ET W EIGHT 6.5 LBS (2.95 KG )
H ANDSET M ATERIAL H IGH I MPACT ABS
M ICROPHONE N OISE R EDUCING E LECTRET
O PTIONAL M ICROPHONE N OISE C ANCELING D YNAMIC
R ECEIVER H EARING A ID C OMPATIBLE (HAC)
S TANDARD M OUNTING V ERTICAL W ALL
W IRING A CCESS 7/8” D IAM . O PENING F OR O WNER S UPPLIED F ITTING