Installation Guide

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Node B Installation Guide

Version 5.0.0 Page 26 of 37

Step 9 DC Power Connection

The power supply input must be a nominal -48Vdc input, with maximum 5amps.

The connection of the mains to DC supply is via screw terminals in the mains connection

block refer to the figure below. Removal of the protective safety cover (3 screws) is required

to gain access to the power terminals.

Below is the sequence to be followed for mains connection.



Cable preparation - Specification: terminal blocks maximum cable size 8AWG (Ø3.5mm

or 8.3mm

)



maximum size of outer diameter 7mm for overall screen of 2 core cable



Remove mains protective cover (3 screws) – see figure above



Remove blanking plug from right most position – see figure below



Feed cable thru cable gland nut, seal and cable gland



Insert cable into terminal block



Secure cable gland in base of Node B and tighen gland seal nut



Replace protective cover (3 screws)

Figure 6-14 : Power Connections

Cable gland

Gland seal

Conduit adaptor

Terminal

Block

Summary of content (12 pages)

PAGE 1
Node B Installation Guide Step 9 DC Power Connection The power supply input must be a nominal -48Vdc input, with maximum 5amps. The connection of the mains to DC supply is via screw terminals in the mains connection block refer to the figure below. Removal of the protective safety cover (3 screws) is required to gain access to the power terminals. Below is the sequence to be followed for mains connection. Cable preparation - Specification: terminal blocks maximum cable size 8AWG (Ø3.5mm 2 or 8.
PAGE 2
Node B Installation Guide Step 10 Backhaul Connections (Iub) to INC The backhaul connections can be selected from the following interfaces 100BaseT E3/T3 E1/T1 The connections are labeled and shown in the figure below. To install any of the cables remove the blanking plug in the appropriate position to align with the interface selected. The cable gland to seal plus strain relief the cable is as illustrated for the power connection above.
PAGE 3
Node B Installation Guide Notes: Points to remember when installing Category 5 cables for the Node B 100Base T Ethernet Backhaul. 1. Do not kink the cable as the pairs are twisted to support 100Mhz operation and splitting the pairs could reduce the performance of the cable. 2. When installing the RJ45 plugs onto the cable ensure pairs are untwisted to the minimum and that the cable sheath is clamped within the connector. Again this is to ensure the performance of the cable is not reduced.
PAGE 4
Node B Installation Guide The termination for these interfaces is specified within the datasheets for the interfaces. The specification for both cables should be 75 . E1/T1 Connections – (1 to 4) Feed the 4 E1/T1 cables through the paired cables glands (ie. dual elastomer insert) external from the enclosure before feeding the cable through the appropriate gland hole at the base of the Node B. Terminate the E1/T1 cables with RJ45 connectors and secure the cable gland to the Node B.
PAGE 5
Node B Installation Guide Step 13 Alarm Connections If local alarms are to be utilised a terminal block has been provided on the Node B termination panel. The specifications for those interface requirements are below:External alarm inputs are connected via connector J11 and the door interlock micro-switch is connected via connector J10. Connectors J12 and J13 are used for the external alarm outputs.
PAGE 6
Node B Installation Guide Step 14 GPS Installation & Operation The Node B has an external/remote GPS antenna and receiver. The connection for the antenna (N-Type) is located on the base of the Node B, refer to the figure above. The GPS timing signal is used by the Node B for the TDD frame timing, so that all Node B's in a network are synchronized. The GPS signal is also used by the master oscillator for a frequency reference.
PAGE 7
Node B Installation Guide Step 15 Solar Shield Installation The solar shield is attached to the Node B after all connections and system checks have been done. Fitting the solar shield to the Node B as illustrated below. Figure 6-21 : Solar Shield Fitting INSERT Solar Shield Onto Node B Once inserted LOWER Solar Shield The Node B is locked into position by tightning the middle 2 screws on either side. Figure 6-22 : Solar Shield Securing Tighten Middle Fixings each side to secure Node B Version 5.0.
PAGE 8
Node B Installation Guide Where the Node B is required to be serviced or during installation, the solar shield may be positioned in the holding position as per figure below, using the top 2 fixing locators on the Node B. Figure 6-23 : Solar Shield Hooked on Node B Version 5.0.
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Node B Installation Guide 7.
PAGE 10
Node B Installation Guide Appendix B - Glossary GLOSSARY ADC Analog to Digital Converter ARP Address Resolution Protocol BTS Base Transceiver Station DAC Digital to Analog Converter Downlink From Network to the User Equipment DSCH Downlink Shared Channel ESD Electro Static Discharge EM Element Manager EIA Engineering Industry Association Ethernet 10BaseT or 100baseT ETSI European Telecommunications Standardization Institute FCC Federal Communication Commission FPGA Field Programmab
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Node B Installation Guide GLOSSARY Version 5.0.
PAGE 12
Node B Installation Guide END OF DOCUMENT Version 5.0.