Motorola SG4-DRT-2X Instruções de Operação Página 71
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Bench Setup and Operation 3-43
SG4000 Installation and Operation Manual
Power Supply Operation
You can power the SG4000 from 60 VAC or 90 VAC system supplies. The SG4000 power supply
module is auto-ranging and requires no start-up voltage jumper selection. The power supplies
begin to operate when the proper input voltage level of 44 VAC rms is reached; they continue to
operate until the input voltage drops below 39 VAC. The line frequency must be 50 Hz or 60 Hz,
and the input voltage waveshape must be quasi-squarewave.
CAUTION!
Damage to the power supply may result from the use of sine wave input power. There are no user-serviceable parts
within the SG4-PS power supply.
The power supply features a self-protection attribute that shuts it down for instantaneous line
voltages higher than 176 VAC. A precision output regulator protects against overcurrent and
short circuits, thus providing a precise output voltage.
Figure 3-39
SG4-PS power supply
NO USER SERV IC
A
BLE P
A
RTS INSID E
TEST
POINT
A
C TEST
POINT
24.3
V
A
DJ
SEE INST
A
LL
A
TION M
A
NU
A
LFORSERVICE
A
SSE MBLE D
IN ME
X
ICO
SG4-PS
C
A
UTION
V
OLT
A
GES IN E
X
CESS OF
150
V
OLTS
A
RE PRESENT
UNDER CO
V
ER
A
ND M
A
Y
BE PRESENT
A
FTER POWER
IS REMO
V
ED
24V adjust DC test point
Status LED
AC test pointEmbedded
signal cable
AC/DC cable
A single SG4-PS power supply provides 2.9 A at +24 VDC. You can use the test point on the top
panel to verify the output. A green LED on the top panel indicates that the power supply is
functioning properly. The power supply is factory calibrated for 24 VDC, and no output voltage
adjustment is required.
If the green LED is not illuminated, the power supply is not producing a 24VDC output. You can
use the AC test point on the top panel to determine if the unit is receiving an AC input. If no AC
is present, use the AC test point located on the power distribution board to verify that AC is
reaching the power supply.
Typical Power Supply Configuration
In a typical configuration, the SG4 is powered from housing Port 2 and may contain one or two
SG4-PS power supplies.
To power the node from Port 2:
1 Install a 20 A fuse in housing port 2.
2 Move jumper J8 to the left position.
3 Ensure fuse F3 (20 A):
is in place to direct AC to the other ports of the node.
is removed to disable AC from the rest of the node.
- 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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