Unpacking and Installation, TWTA Octagon CPU
MNC-0300-003
13 of 22
Revision N
See the appendix titled
Specifications
for the pinouts on your
amplifier.
Note
Pins V, W, and X are not available when the amplifier is
configured for redundant operation.
Table 2, Monitor and Control Connector Pinouts
Pin
Signal
Name
A
RS-232
DCD
B
RS-232
RX
C
RS-232
TX
D
RS-232
DTR
E
RS-232
GND
F
RS-232
DSR
G
RS-232
RTS
H
RS-232
CTS
J
RS-232
RI
K
System GND
L
RS-422/485
Tr
M
RS-422/485
Transmit -
N
RS-422/485
R
P
RS-422/485
Receive -
R
RS-422/485
GND
S
Summary Fault A
Normally Open Contact
T
Summary Fault A
Normally Closed Contact
U
Summary Fault A
Common
V
Summary Fault B
Normally Open Contact
W
Summary Fault B
Normally Closed Contact
X
Summary Fault B
Common
Y
RF Inhibit
Connect Pin Y to either Pin Z or Pin a
to inhibit RF
Z
System GND
a
System GND
b
+24 VDC
Available for external use
c
+24 VDC
Current limit of 100 mA
d
Address A/B
e
HV ON Indicator
f
+15 VDC
Monitor only
g
+5 to +15 VDC (Input)
RF Inhibit optical isolator power input
h
Power Supply Enable
(External Interlock)
Power Supply is enabled when Pin h is
connected to Pin a
j
Gain (Analog) Optional