Guardian Telecom Inc.
Installation and Operation
Model ExP-TBA
Page 10
Engineering Specifications
E
LECTRICAL
P
OWER
R
EQUIREMENT
24VDC;
120V/230VAC,
50/60
H
Z
P
OWER
S
UPPLY
F
USE
24VDC
-
1
AMP
,
120VAC
-
0.50A,
230VAC
-
0.25
AMP
S
LOW
B
LOW
,
2AG
A
UDIO
O
UTPUT FUSES
250V,
0.75A,
S
LOW
B
LOW
,
2AG
A
UDIO
A
ND
C
ONTROL
I
NPUTS
M
ASTER
I
NTERNAL
M
ICROPHONE
600
O
HMS
,
750mV
RMS
M
AXIMUM
E
XTERNAL
PTT
SWITCH
(
OPTIONAL
) D
RY
C
ONTACT
SPST
S
WITCH
A
UDIO
O
UTPUTS
M
ASTER
S
PEAKER
C
HANNEL
70V
L
INE
,
10
WRMS
S
LAVE
S
PEAKER
C
HANNEL
70V
L
INE
,
10
WRMS
E
NVIRONMENTAL
T
EMPERATURE
-40
°
TO
+60
°
C
(-40
°
TO
+140
°
F)
H
UMIDITY
0
–
95%
RH
N
ON
C
ONDENSING
M
ECHANICAL
B
ODY
C
ONSTRUCTION
C
OPPER
F
REE
C
AST
A
LUMINUM
N
ET
W
EIGHT
27
LBS
./12.3
KG
D
IMENSIONS
(W
X
H
X
D) 10
X
15.7
X
6”
(254
X
398
X
152
MM
)
S
TANDARD
M
OUNTING
V
ERTICAL
W
ALL
C
ABLE
E
NTRANCES
T
WO
1
½”
NPT
O
PENINGS
O
N
B
OTTOM
S
URFACE
O
NE
1”
NPT
O
PENING
O
N
T
OP
S
URFACE
C
OMPLIANCE
CSA
(US
A
ND
C
ANADA
) C
LASS
I,
D
IVISION
1,
G
ROUPS
B,C
&
D
C
LASS
II,
D
IVISION
1,
G
ROUPS
E,F
&
G
C
LASS
I,
Z
ONE
1,
G
ROUP
IIB+H
2
T6
E
NCLOSURE
T
YPE
4X
/
IP56
