Outbound parameters, Inbound parameters – Comtech EF Data MIDAS Version 4.X NMS Configuration User Manual
Page 53
MIDAS 4.X NMS Configuration, Rev.6
Setup and Operation 2–25
Outbound
Parameters
C
C
e
e
n
n
t
t
e
e
r
r
F
F
r
r
e
e
q
q
u
u
e
e
n
n
c
c
y
y
I
I
F
F
M
M
H
H
z
z
This is the Center intermediate frequency (IF) of the Outbound Control
channel, the continuous carrier that is transmitted from the NMS to the various
network elements. This field allows the operator to define the IF frequency on
which the NMS will transmit to the nodes. Accordingly, the nodes’ Inbound
Center frequency (via the User Port) are set to this frequency to receive the
Outbound Control channel transmissions. Acceptable values include
70
±18 MHz and 140 ± 36 MHz (in accordance with the IF Center and
Transponder Size settings on the System Setup window), to accommodate the
operating frequency ranges of the full spectrum of satellite transponders and
Comtech EF Data hardware capabilities. On NMS startup, this frequency will
be automatically programmed to the control channel modem, modulator
frequency (both primary and secondary modems, if redundant), and the
LinkSync
modem demodulator frequency.
D
D
e
e
f
f
a
a
u
u
l
l
t
t
P
P
o
o
w
w
e
e
r
r
This is the default transmit power setting for the network control modem(s).
R
R
e
e
f
f
e
e
r
r
e
e
n
n
c
c
e
e
E
E
b
b
/
/
N
N
o
o
This is the stored value at which the received Outbound Control Channel
E
b
/N
o
will be maintained under clear sky conditions, as measured at the
SNM-1002 LinkSync
Modem.
Inbound Parameters
C
C
e
e
n
n
t
t
e
e
r
r
F
F
r
r
e
e
q
q
u
u
e
e
n
n
c
c
y
y
I
I
F
F
M
M
H
H
z
z
This is the Center Intermediate Frequency (IF) of the Inbound Control channel,
for the burst-transmissions sent to the NMS from the various network
elements. This field allows the operator to define the IF frequency on which
the various network elements will transmit to the NMS. Accordingly, the
nodes’ Inbound Center frequency (via the User Port) are set to this frequency
to receive the Outbound Control channel transmissions. Acceptable values
include 70
±18 MHz and 140 ± 36 MHz (in accordance with the IF Center and
Transponder Size settings on the System Setup window), to accommodate the
operating frequency ranges of the full spectrum of satellite transponders and
Comtech EF Data hardware capabilities. On NMS startup, this frequency will
be automatically programmed to the control channel modem, demodulator
frequency (both primary and secondary modems, if redundant).