5 USER
INTERFACES
The amplifier is provided with two control interfaces, the user port and the serial communications
interface (RS-485, 2 or 4-wire). All interfaces are available on the 41-pin control connector, located
next to mains supply connector. This section identifies each control connector pin and describes the
function of each pin, including the electrical specification.
5.1 PIN
IDENTIFICATION
Code Function
Pin
OFF IND
Off indicator output
A
WARMUP IND
Warm-up indicator output
B
STBY IND
Standby indicator output
C
XMIT IND
Transmit indicator output
D
SUM FLT IND
Summary fault indicator output
E
Spare
F
RF INHIB
RF inhibit control input
G
INV RF INHIB
Inverted RF inhibit control input
H
OFF
Off control input
J
STBY
Standby control input
K
XMIT
Transmit control input
L
MUX 4
Multiplexed fault line 4 indicator output
M
FWD PW MON
Forward power monitor analogue output
N
GND Ground
P
EXT INTLK
External interlock input
R
ADD 0
Address select 0
S
ADD 1
Address select 1
T
+ 15V
+ 15V output
U
ADD SEL
Address select
V
CTRL O/R
Control override select
W
MUX 0
Multiplexed fault line 1 indicator output
X
MUX 1
Multiplexed fault line 2 indicator output
Y
MUX 2
Multiplexed fault line 3 indicator output
A
MUX 3
Multiplexed fault line 4 indicator output
a
RS TX +
Serial interface TX +
b
RS TX-
Serial interface TX -
c
RS RX+
Serial interface RX +
d
RS RX-
Serial interface RX -
e
HX I MON
Helix current monitor analogue output
f
ADD 2
Address select 2
g
ADD 3
Address select 3
h
2/4 BUS SEL
2/4 wire serial bus select
i
Spare
j
RED FLT O/P
Redundancy fault indicator output
k
RED SW 1
Redundancy RF switch drive 1 – this HPA
to antenna
m
RED SW 2
Redundancy RF switch drive 2 – this HPA
to load
n
RS GND
Serial interface signal return
p
SWITCH
SENSE
Redundancy RF switch sense input
q
AUTO
ENA
Redundancy automatic mode enable
input
r
RED SEL
Redundancy select input
s
RED FLT I/P
Redundancy fault input
t
© e2v technologies (uk) limited 2010
DAS768892AA
Version
1,
page
18
