TM 11-5840-360-14-1-1
1.15.2 Performance Characteristics
1.14
SWITCHING UNITS SA-2139 (V3, V4) AND
SA-2156 (V2)
Performance characteristics of the video amplifier
are specified in Table 1-18.
1.14.1 Function of Equipment
1.15.3 Physical Description
Each unit is a six (6) position manually operated
switch which provides the on-line receiver transmitter
A physical description of the video amplifier is found
and master indicator selection. In version V2 of the
in Table 1-25.
system one (1) SA-2156 is used while versions V3 and
V4 require the use of two (2) SA-2139s.
1.15.4 Power Requirements
The power requirements of the video amplifier are
1.14.2 Performance Characteristics
115 Vac, 60 Hz, 22 W.
Performance characteristics of
the
units
are
specified in Table 1-17.
1.16
INTERFACE UNIT J-3463(V2)
1.14.3 Physical Description
1.16.1 Function of Equipment
A physical description of the units is found in Table
The primary function of the interface unit is to
couple control signals between the active receiver
transmitter and the antenna pedestal. Contained within
1.14.4 Power Requirements
is a 28 Vdc power supply which provides the energy to
The switching units are passive devices requiring no
activate wave guide switch, SA2140.
power for operation.
1.16.2 Performance Characteristics
1.15
VIDEO AMPLIFIER AM-6932
Performance characteristics of the interface unit are
specified in Table 1-19.
1.15.1 Function of Equipment
The video amplifier provides the necessary
1.16.3 Physical Description
amplification to drive the multiple indicators from a
A physical description of the interface unit is found
single receiver transmitter and antenna pedestal. Video
in Table 1-25.
and resolver signals are amplified and split for use in the
indicators. Terminal boards provide the interconnection
for various signal paths.
Table 1-17. Switching Units SA-2139 (V3, V4) and SA-2156 (V2) Performance Characteristics
Parameter*
Description
Voltage and Current Rating
10A @ 125 Vac
Overload
50 operations @ 30 amperes, 125 Vac resistive
Dielectric Strength
120 VRMS (minimum)
Insulation Resistance
100 megohms (minimum)
Contact Resistance
100 milliohms (maximum)
Ambient Temperature Range
0to +55C
Relative Humidity (at 550 C)
95%
Shock (all planes)
15G
Vibration
1G at 5-50 Hz
Waterproofing
Drip-proof
* Specifications at 250C.
1-25
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