Table 8: Discrete Interface (J3) - Pin Assignments ( Each Unit ) - Advantech AWMA – C250 Installation And Operating Manual

Redundant 250w c-band hub-mount solid state power amplifier
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TABLE 8: DISCRETE INTERFACE (J3) – PIN ASSIGNMENTS (each unit)
Name
PWRON_S
output (active closed)
RFMUT_S
output (active closed)
ALARM_S
output (active open)
FAULT_S
output (active open)
RFOUT_S
output (active closed)
REMOT_S
output (active closed)
DISOU_C
output (common)
RFENA_A
input (active closed)
CIFRC_A
input (active open)
GAIUP_A input (momentary closed)
GAIDW_A input (momentary closed)
AUTOS_A
input (active open)
SWTWG_
input (momentary closed)
A
DISIN_C
input (common)
SWTU1_S
output (active closed)
SWTU2_S
output (active open)
SWTUS_R
output (return)
STDBY_S
output (active closed)
Type
Pin
A
B
C
D
E
F
G
H
J
K
L
M
N
R
S
T
U
V
Active condition
Indicates controller power is on.
Indicates RF output is muted (i.e. off).
Indicates operation at base plate temperature > 70 °C
but < 80 °C, or with degraded performance; caused
by internally detected alarms.
Indicates major failure; operation is not possible.
Amplifier drain voltages are automatically turned
off. Caused by: base plate temperature > 80 °C, drain
voltage > 13 V or < 9 V, drain current > maximum
rated + 20%, load VSWR > 3.0:1, or internally
detected faults.
Indicates RF output power greater than factory set
threshold value.
Indicates system control is via the remote computer
I/F (CIF).
System common.
Enables amplifier.
Enables remote computer I/F (CIF).
To decrease attenuator setting. Step size: 0.1 dB.
To increase attenuator setting. Step size: 0.1 dB.
Enables automatic switch over to standby unit upon
fault detection. Alternate position is manual mode
for servicing.
Waveguide switch toggle action to connect either
unit A or unit B to antenna port.
System common.
Normally closed, Form-C contact, when unit A is
connected to the antenna port.
Normally open, Form-C contact, when unit A is
connected to the antenna port.
Form-C relay common.
Handshake signal indicating that the unit is in a
stand-by state. This implies that there are no faults or
alarms and that the unit is in auto mode.
AWMA-C250
Page 28

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