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Bench Setup and Operation 3-39
SG4000 Installation and Operation Manual
Powering the Node
You can conveniently power the SG4000 by applying 60 VAC or 90 VAC to any of the six RF/AC
ports. Typically, the middle housing ports, 2 and 5, are not used for RF purposes and are the
default powering ports. All six ports are rated at 15 amperes maximum, and each port is fused
with a blade-type 20-ampere mini-auto fuse. AC is never transferred onto the RF modules; the
port entry boards direct the AC to the power distribution board in the housing base. Removing
the fuse at any port removes the AC path from that port to the power distribution board.
The power distribution board contains the jumper, shunt, and fuses required to direct power
passing throughout the node. It also contains the Fast Trigger Electronic Crowbar (FTEC) surge
protection, as well as DC and AC test points.
All power supplies use N+1 redundancy and forced load sharing. Therefore, the node can only be
powered from a single AC power source. Jumper
J8 determines which side physically powers the
node. When jumper
J8 is positioned to the left, ports 1, 2, and 3 are eligible power ports. When
jumper
J8 is positioned to the right, ports 4, 5, and 6 are eligible power ports.
Figure 3-36 diagrams the power distribution board and fuse locations.
Figure 3-36
Power distribution board – diagram
Power Distribution Board
Power
Supply #1
+24V
Fuses and/or shunts used as required by application
+24V
DC test point - J21
AC test point - J20
+24V
FTEC
Shunt
JUMPER - J8
SIC
20 Amp
F3 F1 F2
20 Amp
From Port 4
From Port 6
From Port 5
From Port 1
From Port 3
From Port 2
Power
Supply #2
Power
Supply #3
PIC
- Installation and 1
- Operation Manual 1
- FDA Compliance 3
- Contents 4
- Modules 5
- Installation 6
- Figures 6
- Contents v 8
- Introduction 10
- Figure 1-2 11
- SG4000 – open 11
- Using this Manual 12
- Related Documentation 12
- Document Conventions 13
- If You Need Help 13
- Calling for Repairs 14
- Overview 15
- Housing 16
- Figure 2-3 17
- Housing port locations 17
- Gaskets 18
- Weather gasket 18
- (silicone rubber) 18
- RF gasket 18
- (woven wire) 18
- Network Monitoring 19
- Options and Accessories 19
- Electronics Package 20
- Figure 2-5 21
- Figure 2-6 22
- Configuration 23
- Bandpass Frequency 24
- Station Slope 24
- Bandpass Frequency Splits 25
- Level Control 26
- Port Entry 27
- Figure 2-10 28
- Bench Setup and Operation 29
- Figure 3-2 30
- Forward Path Configuration 31
- Forward Split 33
- Loss = 8.7 dB 34
- Forward Redundant Split 36
- PRI) and secondary (SEC) 38
- SW1 AUTO position 39
- Forward Segmented 2X 40
- Figure 3-14 43
- SEC RX PRI RX 44
- SW2 AUTO position 46
- Forward Segmented 4X 47
- Loss = 2.7 dB 48
- Return Path Configuration 50
- Combined Return 52
- Loss = 0.9 dB 53
- Combined Redundant Return 55
- Split Return 58
- Split Redundant Return 61
- Segmented Return 64
- Power Distribution Board 67
- Figure 3-37 68
- Power distribution board 68
- Figure 3-38 69
- SG4000 – fuse locations 69
- of the housing base. 20 A 70
- Power Supply Operation 71
- Ensure shunt F1 (30 A): 72
- 4-2 Modules 74
- SG4-R/* Optical Receiver 75
- 4-4 Modules 76
- 4-6 Modules 78
- Figure 4-4 79
- Figure 4-5 79
- SG4-* transmitter 79
- SG4-IFPT Optical Transmitter 80
- SG4-DFBT Optical Transmitter 81
- SG4000 RF Module 82
- Modules 4-11 83
- FSB Board 84
- SG4-PS Power Supply 85
- Adding Power Supply Modules 86
- Embedded Plug-in Module 87
- 4-16 Modules 88
- RF port 1 88
- RF port 6 88
- Ingress Control 89
- Status Monitoring 89
- Parameter 90
- Fiber Cables 92
- Figure 5-3 93
- Fiber management tray 93
- Figure 5-2 93
- 5-4 Installation 94
- Clamps Clamp 95
- 5-6 Installation 96
- Pedestal Mounting 97
- Grounding the SG4000 98
- Coaxial Cable Installation 99
- Closing the Housing 100
- Specifications 101
- A-2 Specifications 102
- Specifications A-3 103
- A-4 Specifications 104
- Torque Specifications 105
- Abbreviations and Acronyms 106
- Abbreviations and Acronyms-2 107
- 529086-001 108
- Visit our website at: 108
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