CALAMP WIRELESS NETWORKS INC. BDP3-CRE700 ユーザーズマニュアル
120 20194-102
Paragon3 – 700/800MHz User Manual
9
2.5 Electrical
Standard 120 VAC electrical power is required. It should be capable of providing at least 10A to power
Paragon3 unit (<6A) and ancillary equipment.
Paragon3 unit (<6A) and ancillary equipment.
2.5.1 Paragon3 Assembly Power
Two distinct power configurations (rear views) are shown in the preceding pages. They are:
•
Paragon3 Base Station Standard Assembly.
This configuration is described in paragraph 2.5.1.1 below.
This configuration is described in paragraph 2.5.1.1 below.
•
Paragon3 Base Station Assy. with 3rd party DC supply.
This configuration illustrates typical wiring variation required when using both a third-party
power supply and an optional DC-powered BSC setup. Refer to Dataradio System Engineering
for further details.
This configuration illustrates typical wiring variation required when using both a third-party
power supply and an optional DC-powered BSC setup. Refer to Dataradio System Engineering
for further details.
2.5.1.1 Standard Power Supply Configuration
The Radio assembly unit receives 13.8 VDC power inputs from two “T809 ” power supply modules
powered at 120 VAC. Normally used at room ambient temperatures, it can operate within its specifi-
cations over a range of –10 to +60 °C.
Note: Internal over-temperature protection shuts down the main transformer above 105° Celsius.
powered at 120 VAC. Normally used at room ambient temperatures, it can operate within its specifi-
cations over a range of –10 to +60 °C.
Note: Internal over-temperature protection shuts down the main transformer above 105° Celsius.
Both power supply modules are internally connected to ground via their individual, rear-connected,
seven-foot standard 120 VAC power cords. The Radio Assembly chassis requires a secure ground
connection. A threaded grounding binding post fitted with a knurled binding-nut is provided on the
chassis next to DC input 2.
seven-foot standard 120 VAC power cords. The Radio Assembly chassis requires a secure ground
connection. A threaded grounding binding post fitted with a knurled binding-nut is provided on the
chassis next to DC input 2.
• For the Radio Assembly chassis, install the grounding lead’s lug over the binding post and firmly
hand-tighten the binding-nut.
• If a –DC rail (0V) is installed as part of the system, the grounding leads may alternatively be fit-
ted to the rail terminal.
Caution:
Improper grounding between power supply case and rack frame may result in harmful voltage poten-
tials and/or miscellaneous power supply switching noise problems in both receivers and transmitter.
tials and/or miscellaneous power supply switching noise problems in both receivers and transmitter.
2.5.1.1.1
DC Power Supply Connection & Torque Settings
Warning:
Securing the DC Power Supply cable into the DC connector to provide a good electrical
connection is essential. Over time, the wires tend to compress in the DC connector result-
ing in an increasingly poorer connection. Consequently, as high current is drawn, the
connector heats up increasing the resistance thereby causing still more heat until the
connector eventually burns up.
connection is essential. Over time, the wires tend to compress in the DC connector result-
ing in an increasingly poorer connection. Consequently, as high current is drawn, the
connector heats up increasing the resistance thereby causing still more heat until the
connector eventually burns up.
Although screws securing DC cables to the Power Supply terminals are tightened to the torque set-
tings given below prior to new system delivery, they must be re-tightened as part of the commission-
ing process and re-tightening is also part of the regular maintenance schedule.
tings given below prior to new system delivery, they must be re-tightened as part of the commission-
ing process and re-tightening is also part of the regular maintenance schedule.
Prior to replacing a Power Supply module into an existing system, inspect the cable and re-terminate
the DC wires if the strands have previously been twisted together or show any sign of damage.
the DC wires if the strands have previously been twisted together or show any sign of damage.
Cut the wire at the end of the insulation and then strip approximately .43 inch (11mm) of insula-
tion off the cable. DO NOT TWIST THE WIRE STRANDS. Insert the DC cable into the screw
terminal and tighten the screw to secure the cable as per the torque settings given below.
tion off the cable. DO NOT TWIST THE WIRE STRANDS. Insert the DC cable into the screw
terminal and tighten the screw to secure the cable as per the torque settings given below.