11
T
T
a
a
b
b
l
l
e
e
2
2
-
-
1
1
.
.
A
A
m
m
p
p
l
l
i
i
f
f
i
i
e
e
r
r
M
M
o
o
d
d
u
u
l
l
e
e
P
P
o
o
w
w
e
e
r
r
,
,
A
A
l
l
a
a
r
r
m
m
,
,
C
C
o
o
n
n
t
t
r
r
o
o
l
l
,
,
a
a
n
n
d
d
R
R
F
F
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
D
D
e
e
f
f
i
i
n
n
i
i
t
t
i
i
o
o
n
n
PIN
SIGNAL
I/O
SIGNAL NAME
1
GROUND
-
-
2
RxD+
DATA IN
SERIAL-RS485
3
RxD-
DATA IN
SERIAL-RS485
4
TxD+
DATA OUT
SERIAL-RS485
5
TxD-
DATA OUT
SERIAL-RS485
6
RACK A2
ADDRESS IN (MSB)
GROUND PIN FOR A HIGH,FLOAT FOR A LOW
7
RACK A1
ADDRESS IN (MiddleSB)
GROUND PIN FOR A HIGH,FLOAT FOR A LOW
8
RACK A0
ADDRESS IN (LSB)
GROUND PIN FOR A HIGH,FLOAT FOR A LOW
9
NOT USED
10
AMP A2
ADDRESS IN (MSB)
GROUND PIN FOR A LOW,FLOAT FOR A HIGH
11
FAN FAIL
INPUT
GROUND PIN FOR A LOW,FLOAT FOR A HIGH
12
AMP A1
ADDRESS IN (MiddleSB)
GROUND PIN FOR A LOW(PASS),FLOAT FOR A
HIGH(FAIL)
13
NOT USED
14
AMP A0
ADDRESS IN (LSB)
GROUND PIN FOR A LOW,FLOAT FOR A HIGH
15
NOT USED
16
NOT USED
17
NOT USED
A1
RF INPUT
PDM 24 SERIES COAX
A2
Vin
SOURCE
TYPICALLY 27 VOLTS DC
A3
GROUND
-
POWER SUPPLY RETURN
A4
RF
OUTPUT
PKZ 26 SERIES COAXIAL CONNECTOR (50 OHM,
.050” CENTER CONTACT)
Figure 2-1. Power, Alarm, Control, and RF Connector (D-SubMiniature 21WA4, Male Connector)
