Guardian Technologies SCR 41 User Manual
Page 8
Guardian Telecom Inc.
Installation and Operation
SCR Series
Page 8
Engineering Specifications
E
LECTRICAL
P
ERFORMANCE
A
UDIBLE
R
ANGE
F
REQUENCY
R
ESPONSE
300
–
3400
H
Z
T
RANSMIT
O
BJECTIVE
L
OUDNESS
R
ATING
(TOLR) -38
+/-
3
dB
R
ECEIVER
V
OLUME
A
DJUSTMENT
+8.1
/
-5.1
dB
IN
S
TEPS OF
2.7
dB
R
ECEIVE
O
BJECTIVE
L
OUDNESS
R
ATING
(ROLR)
-A
T
N
OMINAL
V
OLUME
L
EVEL
50
+/-
3
dB
-A
T
M
AXIMUM
V
OLUME
L
EVEL
41.9
+/-
3
dB
-A
T
M
INIMUM
V
OLUME
L
EVEL
55.4
+/-
3
dB
S
IDE
T
ONE
O
BJECTIVE
L
OUDNESS
R
ATING
(SOLR)
-A
T
N
OMINAL
V
OLUME
L
EVEL
11
+/-
4
dB
-A
T
M
AXIMUM
V
OLUME
L
EVEL
7
+/-
4
dB
-A
T
M
INIMUM
V
OLUME
L
EVEL
14
+/-
4
dB
R
INGER
O
UTPUT
>75
dB
FCC
R
INGER
E
QUIVALENCE
0.8B
S
ET
I
MPEDANCE
600
O
HMS
N
OMINAL
M
AXIMUM
L
OOP
15,000
F
EET
(4,600
M
ETERS
)
OF
22
AWG
C
OPPER
E
LECTRICAL
R
EQUIREMENTS
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
B
LOCK
E
NVIRONMENTAL
W
EATHERPROOF
E
NCLOSURE
NEMA
3R
T
EMPERATURE
-40
O
TO
+60
O
C
(-40
O
TO
+140
O
F)
M
ECHANICAL
H
OOK
S
WITCH
(C
RADLE
S
WITCH
)
L
IFE
>1
000
000
O
PERATIONS
B
ODY
C
ONSTRUCTION
16
G
AUGE
S
TEEL
,
Z
INC
D
ICHROMATE
P
LATED
A
ND
P
OWDER
C
OATED
D
IMENSIONS
(H x W x D)
9
X
5.0
X
5.2
INCHES
(229
X
127
X
132
MM
)
N
ET
W
EIGHT
4
LBS
(1.82
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