All outdoor electronic equipment is susceptible to lightning damage. Proper grounding to national and local codes is instrumental in providing human safety. Lightning Protection is used to maximize the reliability of the electronic system by diverting the excess energy that can be induced on any transmission lines (data, power) through a series of surge protection devices. The energy is dissipated through heat and also diverted to ground.
All Tsunami QuickBridge radio units have built-in lightning protection on both the power supply lines and the Ethernet lines. There are TVS diodes that provide protection to IEC 61000-4-05. Proxim Corporation uses “well-design” practices incorporating these devices in the Tsunami QuickBridge products.
Lightning, even with the built-in protection, can still damage outdoor Tsunami equipment. This can occur for any number of reasons, such as an improperly grounded installation, or when the amount of transient energy from nearby lightning exceeds what the devices can handle.
If a Tsunami unit fails due to damage from lightning, the link is out-of-service until the unit is replaced or repaired. An external, revertive protection device can provide a higher level of protection and greater probability of surviving lightning transients without damage to the Tsunami equipment. If damage does occur, most likely it is to the lightning protection devices and not the Tsunami equipment. Remember, even with external lightening protection, damage can still occur to the Tsunami outdoor units.
Proxim recommends the following for its QuickBridge products:
|
Installation
Requirement |
||
Proxim Product |
Industrial |
Commercial |
SOHO |
Tsunami QuickBridge |
(1) |
(1) or (2) (up to 50 meters) |
(1) or (2) (up to 50 meters) |
(1) PolyPhaser 101-1218W-A.1 CAT 5 Contact
Information: Polyphaser Corporation
|
(2) Transtector
1101-TSU Surge Supressor Contact information: Transtector Systems |
This is a heavy-duty aluminum, weather-tight enclosure for outdoor use that serves to protect wireless outdoor units, as well as the indoor power & Ethernet adapter and connected line equipment inside the roof penetration. This product can be used for all CAT 5 cable lengths up to 100 meters from the outdoor wireless unit to the indoor power & Ethernet adapter.
The Polyphaser Data Protector uses Cascade Technology. This is a multi-stage technology that is superior to single stage because of high surge current capacity and fast response time. The unit is designed to fit in-line onto the outdoor CAT 5e cable, using two weatherized plug openings for the cable to enter and exit. The existing cable is cut, dressed, and reconnected onto two sets of 8 screw terminals inside the Data Protector.
This outdoor-use, molded plastic, weather-tight enclosure is a surge suppressor designed to protect the QuickBridge II unit from lightning damage. This product can be used for CAT 5 cable lengths up to 50 meters from the outdoor wireless unit to indoor power & Ethernet adapter.
The 1101-TSU uses silicon avalanche suppression diodes (SASD) to provide lower voltage protection level (VPL). This technology provides a superior protection level over traditional gas tube type devices. The unit is designed to fit onto a CAT 5 cable in a pass-through configuration. The input and output connections can be made at two sets of 8-screw terminals, or two 8-pin DIN style connectors. This arrangement allows the installation of the connectorized CAT 5e cable directly into the Surge Suppressor, or with a cut cable.
The lightning protection units recommended are designed to be installed in-line onto the CAT 5e cable that connects the outdoor QuickBridge unit to the indoor power adapter.
The lightning protection device has a Surge (cable-facing) side, and an Equipment (equipment-facing) side. The Equipment side faces the outdoor QuickBridge unit or the indoor power & Ethernet adapter. The Surge side faces the long length of cable; when installing two lightning protection units, each unit’s Surge side face one another.
See pin-out information for each unit in “Protection Unit Specifications” for connecting the cable to the protection device.
At least one unit should be installed near every outdoor QuickBridge unit. General guidelines are:
Installing two protectors provides the maximum protection against lightning damage to the outdoor QuickBridge II unit and the indoor power & Ethernet adapter, especially if the CAT 5 cable length is greater than 15 meters.
The QuickBridge contains two complete radio units. A total of two or four lightning protection units should be ordered per QuickBridge link.
Surge:............................................................... BellCore 1089 10/100msec, 100A
Temperature:.................................................... -40°C to +65°C storage/operating +50°C
Maximum Characteristics Data (Ethernet):
Turn-on:............................................................ +7.0
VDC ± 10%
Resistance:....................................................... 1
ohm
Capacitance:..................................................... 15
pf Line to Ground, 30 pf Line to Line
Data Rage:........................................................ Up
to 100Mbps (100BT)
Maximum Characteristics DC:
Turn-on:............................................................ ± 68 VDC ± 10%
Resistance:....................................................... 0.02
ohm
User
Current:.................................................... 2A
max.
Size................................................................... L
x W x T: 6.53” x 2.77” x 1.25”
Mounting............................................................ Panel
or pole mount
Pinout and Wiring Specifications:
Examine the RJ45 connector to ensure which color wire is connected to pin 1.
The pins of the RJ45
connector are numbered left to right, considering it is upside down (clip
down). Alternatively, if you
cannot examine the RJ45 connector, see the revision of the cable. The label is located near the cable DIN
connector. See the following table to
determine the wiring of the cable based upon the revision.
Cable Part # |
Length |
Original Wiring (Green on RJ45 Pin 1) |
EIA 568B Wiring (White/Orange on Pin 1) |
100-00737-01 or
53999 |
25 m |
Revision 90, 1, 2, or 3 |
Revision 4, 5 or > |
67085 |
25 m |
None |
All revisions |
100-00737-02 or
59400 |
50 m |
Revision 1, 2, or 3 |
Revision 4, 5, or > |
67086 |
50 m |
None |
All revisions |
100-00737-03 or
59401 |
75 m |
Revision 1, 2, or 3 |
Revision 4, 5, or > |
67087 |
75 m |
None |
All revisions |
Surge
Side |
Equipment
Side |
Application |
Original Wiring
(Green on RJ45 Pin 1) |
EIA 568B Wiring
(White/orange on RJ45 Pin 1) |
Vdc in |
VDC
out |
48Vdc |
White/Orange |
Blue |
RTN
in |
RTN
out |
Ground |
Orange |
White/Blue |
Vdc in |
VDC
out |
48Vdc |
White/Brown |
White/Brown |
RTN
in |
RTN
out |
Ground |
Brown |
Brown |
Tx+ in |
Tx+ out |
Tx + |
Green |
White/Orange |
Tx- in |
Tx- out |
Tx - |
White/Green |
Orange |
Rx+ in |
Rx+ out |
Rx + |
Violet |
White/Green |
Rx- in |
Rx- out |
Rx - |
White/Violet |
Green |
GND |
GND |
Shield, if req. |
|
|
Note: VDC in (out) and RTN in (out) pinouts are based upon applying a positive 24 FDC to the VDC terminal and applying the dc ground to RTN.
For additional information, go to www.polyphaser.com.
Surge:........................................................................... IEEE
10/1000 Long Wave, 150 A peak
Temperature:............................................................... -40°C to +80°C operating and storage
Ethernet Characteristics:
Transfer Rate:.............................................................. CAT
5
Maximum Continuous Operating Voltage:................... 20 VDC
Protection Mode:.......................................................... Line
to Line, Line to Ground
Response Time (max):................................................ 5
nanoseconds
Standby Power (max):................................................. <0.5
Watt
Peak Power:................................................................. 5000
Watts
DC
Characteristics:
Service Voltage:........................................................... 20
VDC
Maximum Continuous Operating Voltage:................... 80
VDC
Response Time (max):................................................ 5
nanoseconds
Standby Power (max):................................................. <0.5
Watts
Peak Power:................................................................. 20,000
Watts
Protection Mode:.......................................................... Line
to Line
Size:............................................................................. L
x W x T: 6.13” x 4.5” x 2.5”
Pinout and Wiring Specifications:
Examine the RJ45 connector to ensure which color wire is connected to pin 1.
The pins of the RJ45 connector
are numbered left to right, considering it is upside
down (clip down).
Alternatively, if you cannot
examine the RJ45 connector, see the revision of the cable. The label is located near the cable DIN
connector. See the following table to
determine the wiring of the cable based upon the revision.
Cable Part # |
Length |
Original Wiring (Green on RJ45 Pin 1) |
EIA 568B Wiring (White/Orange on Pin 1) |
100-00737-01 or
53999 |
25 m |
Revision 90, 1, 2, or 3 |
Revision 4, 5 or > |
67085 |
25 m |
None |
All revisions |
100-00737-02 or
59400 |
50 m |
Revision 1, 2, or 3 |
Revision 4, 5, or > |
67086 |
50 m |
None |
All revisions |
100-00737-03 or
59401 |
75 m |
Revision 1, 2, or 3 |
Revision 4, 5, or > |
67087 |
75 m |
None |
All revisions |
Surge Side |
Equipment Side |
Application |
Original
Wiring (Green on RJ45 Pin 1) |
EIA 568B Wiring (White/Orange on Pin 1) |
VDC
in |
VDC
out |
+24
VDC |
White/Orange |
White/Blue |
RTN
in |
RTN
out |
Ground |
Orange |
Blue |
VDC in |
VDC out |
+24 VDC |
White/Brown |
Brown1 |
RTN in |
RTN out |
Ground |
Brown |
White/Brown |
Tx+ in |
Tx+ out |
Tx + |
Green |
White/Orange |
Tx- in |
Tx- out |
Tx - |
White/Green |
Orange1 |
Rx+ in |
Rx+ out |
Rx + |
Violet |
White/Green |
Rx- in |
Rx- out |
Rx - |
White/Violet |
Green |
GND |
GND |
Shield, if req. |
|
|
1The RTN pins in the ALPU-TSU are floating ground. The DC connection (+24 VDC and Gnd) will be unaffected if the ORANGE (or BLUE depending upon the color code on pin 1 of the RJ45), or the WHITE/ORANGE i(or White/Blue) wire is connected to the RTN pin.
For additional information, go to www.transtector.com