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
ARS-232 DCD
BRS-232 RX
CRS-232 TX
DRS-232 DTR
ERS-232 GND
F RS-232 DSR
GRS-232 RTS
HRS-232 CTS
JRS-232 RI
KSystem GND
L RS-422/485 Transmit +
M RS-422/485 Transmit -
N RS-422/485 Receive +
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
ZSystem GND
aSystem 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
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