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Bottom LPU 

Select a mounting point for the bottom LPU within 600 mm (24 in) of the building entry 
point. Mount the LPU vertically with cable glands facing downwards: 

 

Connect the two drop cables into the RJ45 ports of the bottom LPU, following the 
procedure i

Connecting drop cables to the LPU and ODU

. 

Fasten one ground cable to the bottom LPU using the M6 (small) lug. Tighten both nuts 
to a torque of 5 Nm (3.9 lb ft): 

 

 

 

Locking nut 
Washer 
M6 lug 
Washer 
Nut 
Toothed washer 

 

 

M10 lug to ground 

Select a building grounding point near the LPU bracket and on the same metal. Remove 
paint from the surface and apply anti-oxidant compound. Fasten the LPU ground cable to 
this point using the M10 (large) lug. 

 

Summary of Contents for PTP 650 LPU

Page 1: ...Cambium PTP 650 LPU and Grounding Kit Installation Guide ...

Page 2: ...s of the copyrighted material Accordingly any copyrighted material of Cambium Networks its licensors or the 3rd Party software supplied material contained in the Cambium Networks products described in this document may not be copied reproduced reverse engineered distributed merged or modified in any manner without the express written permission of Cambium Networks Furthermore the purchase of Cambi...

Page 3: ... PSU drop cable To understand how procedures differ when installing an AUX drop cable refer to the PTP 650 Series User Guide Note PTP 650 LPUs are not suitable for installation on SFP copper Cat5e Ethernet interfaces For SFP drop cables obtain suitable surge protectors from a specialist supplier Related documents For full PTP 650 installation instructions refer to the PTP 650 Series User Guide Ver...

Page 4: ...otection units LPUs LPU grounding point nuts and washers ODU to top LPU drop cable 600 mm EMC strain relief cable glands U bolts nuts and washers for mounting LPUs ODU to top LPU ground cable M6 lugs at both ends bolt and washers Bottom LPU ground cable M6 and M10 lugs ODU to grounding system ground cable M6 and M10 lugs bolt and washers ...

Page 5: ... as described below Outdoor Cat5e cable drop cable For copper Cat5e connections from the ODU to the PSU LPUs and other devices use Cat5e cable that is gel filled and shielded with copper plated steel for example Superior Essex type BBDGe This is known as drop cable Caution Always use Cat5e cable that is gel filled and shielded with copper plated steel Alternative types of drop cable are not suppor...

Page 6: ...evices Note The parts listed in this table work with Superior Essex type BBDGe cable as supplied by Cambium Networks They may not work with other types of cable Order RJ45 connectors and crimp tool from Cambium Networks Cambium description Cambium part number Tyco AMP Mod Plug RJ45 100 pack WB3177 Tyco AMP Crimp Tool WB3211 ...

Page 7: ... PSU In the basic configuration there is only one Ethernet interface a copper Cat5e connection from the ODU PSU port to the PSU and network terminating equipment as shown here In more advanced configurations there may be up to three copper Cat5e Ethernet interfaces to the ODU PSU SFP and AUX The PSU and AUX interfaces each require one PTP 650 LPU and Grounding Kit Cambium part number C000065L007 P...

Page 8: ...e gland over the LPU PSU drop cable at LPU end only Do not tighten the gland nuts 3 At the LPU ends of these cables strip the cable ends and fit RJ45 connector load bars 4 At the LPU ends of these cables fit the RJ45 connector housings as shown To ensure there is effective strain relief locate the cable inner sheath under the connector housing tang The PTP 650 Series User Guide describes how to pr...

Page 9: ...J45 connectors disassemble the glands and thread their components over the RJ45 connector as shown 1 Disassemble the gland 2 Thread each part onto the cable the rubber bung is split 3 Assemble the spring clip and the rubber bung the clips go inside the ring 4 Fit the parts into the body and lightly screw on the gland nut do not tighten it ...

Page 10: ...ket bolts to a torque of 14 Nm 11 lb ft 3 Connect the ODU PSU port to the top LPU either port using the 600 mm drop cable supplied in the LPU kit following the procedure in Connecting drop cables to the LPU and ODU 4 Connect the top LPU other port to the main drop cable following the procedure in Connecting drop cables to the LPU and ODU Fasten the two drop cables such that they are not coiled tog...

Page 11: ...op LPU M6 lug at other end and the other is for the tower or building M10 lug at other end It does not matter which cable goes on which grounding point Tighten both grounding bolts to a torque of 5 Nm 3 9 lb ft M6 lug M6 lug M6 lug to top LPU M10 lug to ground Bolt Toothed washer M6 lug Toothed washer ...

Page 12: ...7 Select a tower or building grounding point within 0 3 meters 1 ft of the ODU bracket on the same metal Remove paint from the surface and apply anti oxidant compound Fasten the ODU grounding cable to this point using the M10 large lug 8 If local regulations mandate the independent grounding of all devices add a third ground cable to connect the top LPU directly to the grounding system ...

Page 13: ... the procedure in Connecting drop cables to the LPU and ODU 3 Fasten one ground cable to the bottom LPU using the M6 small lug Tighten both nuts to a torque of 5 Nm 3 9 lb ft Locking nut Washer M6 lug Washer Nut Toothed washer M10 lug to ground 4 Select a building grounding point near the LPU bracket and on the same metal Remove paint from the surface and apply anti oxidant compound Fasten the LPU...

Page 14: ...et in the unit ensuring that it snaps home Fit the gland body to the RJ45 port and tighten it to a torque of 5 5 Nm 4 3 lb ft 2 Fit the gland nut and tighten until the rubber seal closes on the cable Do not over tighten the gland nut as there is a risk of damage to its internal components Correct Incorrect ...

Page 15: ... and 2 Ohms 20 Ohms 60 Ohms 2 Pass Fail These resistances must be within 10 of each other 1 Circle Pass or Fail Pass Fail Pins 3 and 6 Ohms 20 Ohms 60 Ohms 2 Pass Fail Pins 4 and 5 Ohms 20 Ohms 60 Ohms 2 Pass Fail Pins 7 and 8 Ohms 20 Ohms 60 Ohms 2 Pass Fail Pin 1 and screen ODU ground K Ohms 100K Ohms 3 Pass Fail Pin 8 and screen ODU ground K Ohms 100K Ohms 3 Pass Fail 1 Ensure that these resist...

Page 16: ... in the most challenging non line of sight RF environments Our flexible Point to Multipoint PMP solutions operate in the licensed unlicensed and federal frequency bands providing reliable secure cost effective access networks With more than three million modules deployed in networks around the world our PMP access network solutions prove themselves day in and day out in residential access leased l...

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