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Component Description
|
7-4
Engineered to Endure
Component Description
As described previously, except in very rare conditions, the redundant transmit (Tx
1+1) system includes two IBUCs of the same power rating and frequency band
connected to an interface module at the input and an RF switch at the output. An
external power supply is required for each DC-powered IBUC. This section explains
the functionality of each component and their relationships.
Intelligent Block Upconverter
More information about the intelligent block upconverter is found in
.
Tx 1+1 Interface Module
The Tx 1+1 interface module is powered by both IBUCs through connectors J4 (for
the A: side IBUC) and J6 (for the B: side IBUC). Both supply inputs feed a linear
regulator that generates the voltage for all internal circuitry. The RS232 interface and
the power for the Hand-held Terminal are routed to connector J9. The RS485
interfaces coming from both IBUCs via connectors J4 and J6 are connected together
and routed to the user interface via connector J9. The Ethernet ports from the A: side
IBUC and the B: side IBUC (connectors J5 and J7, respectively) are routed to the user
interface through an internal Ethernet switch. The alarm output (normally open,
faulted, or short to ground) of the A: side IBUC is routed to the alarm input of the B:
side IBUC and vice-versa. This setup ensures that the A: side IBUC and the B: side
IBUC monitor each other. Also, the Form-C relays with the alarms of both IBUCs are
routed to the interface via connector J9. The switch commands from the A: side IBUC
and the B: side IBUC are connected together and routed to the waveguide switch
(connector J11). The waveguide switch indicators (connector J11) are routed to both
IBUCs (connectors J4 and J6). The Tx input (L-band, 10MHz and FSK) from
connector J2 is routed to a splitter (it also blocks DC, if present at J2). The outputs of
the splitter are routed to connector J1 (the A: side Tx output) and J3 (the B: side Tx
output). The Tx 1+1 module also has a bank of LEDs that provide a visual indication
of the power, Ethernet activity for both IBUCs, the RJ45 user interface (J8), the 19-pin
user interface (J9), the auxiliary user interface (J10), the status of both IBUCs, as well
as which is IBUC
3
or IBUC
3
G
is a block diagram of a Tx 1+1
interface module.
Summary of Contents for IBUC 3
Page 8: ...vi Engineered to Endure ...
Page 12: ...viii Engineered to Endure ...
Page 14: ...x Engineered to Endure ...
Page 33: ...System Components 2 11 Engineered to Endure Figure 2 3 DC powered IBUC3 Block Diagram ...
Page 37: ...System Components 2 15 Engineered to Endure Figure 2 4 DC Low Power IBUC System Configuration ...
Page 40: ...2 18 IBUC 3 IBUC 3G Operations Manual Functional Description Engineered to Endure ...
Page 60: ...3 20 IBUC 3 IBUC 3G Operations Manual Installation Engineered to Endure ...
Page 90: ...6 8 IBUC 3 IBUC 3G Operations Manual Troubleshooting Engineered to Endure ...
Page 132: ...B 8 IBUC 3 IBUC 3G Operations Manual Using HyperTerminal Engineered to Endure ...
Page 157: ...Menu Options D 3 Engineered to Endure Figure D 3 Hand held Terminal Menu Tree ...
Page 162: ...D 8 IBUC 3 IBUC 3G Operations Manual Hand Held Terminal Menu Tree Engineered to Endure ...
Page 227: ...Data Sheets G 7 Engineered to Endure ...
Page 235: ...I n d e x 3 Engineered to Endure ...
Page 236: ...I n d e x 4 ...