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OM20 Universal Outdoor Modem
2.3.4 OM20 Antenna Feed Arm Mount Diagram
The OM20 can be mounted horizontally on the Antenna Feed arm. This is the preferred method
of mounting on larger diameter antenna systems where sufficient support and weight handling
characteristics of the antenna offset feed arm is available.
DATA / M& C
INDOOR
INTERFACE
ENET DATA /M & C I /O
Figure 2-7. OM20 Feed Arm Mount, Ethernet Interface
2.3.5 OM20 with External TWTA Amplifier
The OM20 can be used as a driver for an external SSPA/TWTA High Power Amplifier for systems
requiring higher output RF Power Levels.
IFL
DATA / M & C
INDOOR
INTERFACE
ENET DATA
/ M & C I / O
Figure 2-8. OM20 with High Power Amplifier, Ethernet Interface
TM116 – Rev. 1.2
E-NET DATA
E-NET M &C
IFL
OUTDOOR
T X I N
T W T A
OM-20
BUC / SSPA
TX IF IN
TX OUT
OM-20
E - NET DATA
RJ 45
J 4 ENET I
/O
E - NET M & C
J 2 M & C I / O
J 3 DATA I
/ O
G . 703
DATA I
/ O
OUTDOOR
J 10
J 11
N
T I
P A
S S
N E
C /
E -
B U
4 5
R J
I N
A C
AC
PWR
T X O U T
A C I N
TX RF
TX RF OUT
RXIF L
950 – 2050
J 7
N
RX INPUT
+ 18 VDC
AC PWR
J 1
3 P
AC
PWR
Installation
RX IF
L
N
B
OMT
R F
D
T X
A N
z
- B
M H
F L
0 5 0
R X I
– 2
C
V D
T
O U
9 5 0
+ 1 8
T X
I N
R X
`
RX IF
L
N
B
OMT
R F
T X
-BAND
MHz
2-7
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