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Chapter 2 - Installation
NOTE
48V signals are of Output type when BTS ODU feeds backhaul CPE. In other configurations the
signals type is Input.
2.5.1.2
External RF Antenna Connection
Two N-type connectors are used for external antenna connection. The connectors
should have impedance 50Ω and be lightning protected.
2.5.1.3
GPS Connection
A TNC connector is used for GPS antenna connection.
GPS In and GPS Out Connectors: The neighbouring BTSs can be synchronized by
single GPS source when chain connection is used . Two RJ-45 connectors are
used for GPS synchronization: GPS-IN is an input from previous BTS and GPS out
as an output to next BTS.
Pin No.
1
2
3
4
5
6
7
8
2.5.1.4
Power Connection
External DC power supply should be connected using 4-pin cable with the
following pinout:
Pins 1 and 2: +DC
Pins 3 and 4: –DC
The power connector type is 4-pin Mini Fit High Current connector model Molex
39-29-1048.
BreezeMAX Extreme
Table 2-5: GPS In / GPS Out Connectors Pinout
Signal Name
Description
TERM_P
Chain Termination + (positive)
TERM_N
Chain Termination – (negative)
10M_CLK_P
10MHz Clock + (positive)
GPS_MNG_P
GPS Management + (positive)
GPS_MNG_N
GPS Management – (negative)
10M_CLK_N
10MHz Clock – (negative)
1PPS_P
10MHz Clock + (positive)
1PPS_N
Negative Power Input from IDU
62
Connectors
I/O Type
Input
Input
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
System Manual
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