605-0001-801 FlexNET Link Products
Power cabling using PSU-3 power supply
The PSU-3 power supply unit can feed one ASN-700/800 base station product. The power
supply is an external unit designed for operation in outdoor environment. The supply voltage of
the power supply is 24 VDC. The power supply unit provides RS-485 connector for remote
management of the base station unit. RS-485 pins must be wired from the base station unit to
power supply if RS-485 remote management is needed. Wiring can be done by 4-wire power
cable.
RS-485 is a data communications interface standard approved by the Electronic Industries
Association (EIA) for multipoint communications with serial devices. It is ideal for industrial
applications due to its noise immunity.
The transmitted data is represented by voltage differences between the two wires of the power
cable. RS-485 requires specific serial port hardware that supports RS-485 voltages and
conventions.
Detailed cabling instructions are in Appendix 1.
Power cabling using PSU-2 power supply (accessory)
The PSU-2 power supply is an external unit designed for operation in outdoor environment. The
PSU-2 power supply unit can feed up to two ASN-700/800 products. The supply voltage of
power supply is 12 VDC. The power supply unit has an inbuilt sealed lead-acid rechargeable
battery to ensure at least a few minutes of operation when the main supply voltage is lost. This
battery back-up time depends on the condition of the battery. It is recommended to replace the
battery from time to time, e.g. once a year. This replacement time depends on ambient
temperature of the power supply unit.
Ethernet cabling
The maximum length of Ethernet cabling without repeaters or amplifiers is 100 meters (330
feet). Ethernet cabling must fulfil CAT5 category FTP outdoor cable specifications. Detailed
cabling instructions can be found in Appendix 1.
Protective connector cover
If the Ethernet connectors are not used you must cover the connectors by a protective
cover. The ASN-700/800 is shipped with protective covers on both Ethernet connectors by
default.
Applying coax seal tape
When using the unit with external antennas, you must weather seal the N connectors using seal
tape. N connectors that are not properly sealed permit moisture to enter the connection, which
leads to performance degradation or coverage problems.
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Содержание FlexNET ASN-700
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