DSWX9078 Datasheet, PDF (1/1 Pages) DAICO Industries, Inc. – Antenna Selector 4-Port

F E AT U R E S
DC - 400 MHz
40 dB Isolation
Auto Mode Cycle Between Upper
for Two Radio
HDI
Failsafe Mode
Bit Port for Functionality Testing in Aircraft
MODEL NO.
DSWX9078
Antenna Selector 4-Port
3.88
.94
.43
J3
J1
1.70
1.23
TEST POINT (TPI)
WILL ACCEPT PROBE
OF 0.40 DIA. (SEE CHART)
5.50
5.000
4.50
J5
J2
TPI
J6
J4
PART
IDENTIFICATION
0.25
0.50
.250 0.12
1.75
1.500
2.00
TNC FEMALE
5 PLACES
3.95
.43 1.23
J4 KEYWAY
.74
5 PLACES
1.25 MAX
1.10
.59
OVER HDW
REF
0.09
MOUNTING
.59
±.02
SURFACE
M527478Y10D13P MATES
.190-32 UNF-2A THREAD
WITH M527473T10B35S
SOCKET HEAD CAPTIVE SCREW
(.156 HEX DRIVE)
4 PLACES
J4
Upper/Lower Indicator
5
NORM ₁₂
COM 1 SECURE IND.
SECURE
NORM ₁₃
COM 2 SECURE IND.
SECURE
OFF=OPEN=NORM
11
SQUELCH 1
ON=SATURATED
OFF=OPEN=NORM
10
SQUELCH 2
ON=SATURATED
OPEN=RCV
8
KEY 1
GND=XMIT
OPEN=RCV
6
KEY 2
GND=XMIT
+28=UPPER
7
OPEN=AUTO
GND=UPPER
INDICATOR OUTPUT
FROM R/T2
(COM 2 BAND)
OPEN=VHF SELECT
GND=UHF SELECT
9
3
1
UHF UHF/VHF
UPPER COM 2 VHF
J3
J5
J6
UHF/VHF
Select
J4 - J9
J1
J2
UHF VHF
COM 1 LOWER
Primary PWR (+28V)
Primary Return
J4 CONNECTOR
PIN
FUNCTION
1 Primary Power Return
2 Spare
3 Primary Power (+28V)
4 Spare
5 Upper/Lower Indicator
6 Com 2 Transmit Key
7 Mode Select
8 Com 1 Transmit Key
9 Com 2 Band Indicator
(UHF/VHF Select)
10 Com 2 Squelch Input
11 Com 1 Squelch Input
12 Com 1 Secure Indicator
13 Com 2 Secure Indicator
Test Point (TPI) Chart
Power On
Mode
Com 1
to
Com 2 Test Point
to
Voltage
A
Lower VHF
1V
B
Lower Upper
3V
C
Upper VHF
5V
D
Upper Lower
7V
Power Off
0V
DAICO Industries
GUARANTEED PERFORMANCE
Parameter
Min Typ Max Units Conditions
Operating Frequency
DC
500 MHz
DC Current
210 350 mA At +28 VDC Supply
Isolation
40 72
dB
Insertion Loss
0.5 dB 30 - 400 MHz
0.6 dB 400 - 500 MHz
0.25 dB J5 - J6 @ 30 MHz
VSWR
1.2/1 1.25/1
30 - 400 MHz
1.35/1
400 - 500 MHz
Impedance
50
OHMS
Switching Speed
2.6
5 mSec
RF Power
Operate
100 W
Average
No Damage
500 W
Peak
Operating Temperature -54 +25 +71 °C Intermittent @ +95°C
Rev. N/D / Iss. 1