User's Guide

12/6/2019
10
Network Unit (NU)
The Network Unit, referred to as the NU, is the head end for the QUATRA 4000 system. The signal sources (one for
each port/carrier) are connected to the NU. Then they are digitized and purified, and distributed over dual Category
cables to the Coverage Units (CU).
Note: Only cellular signals may be connected to the donor ports. Other types of radio signals will not work, and may
damage the system.
The NU has four (4) N-type RF ports on the top. Each RF port is assigned, and marked, to a specific carrier.
There are two (2) SMA-female ports on the top of the NU. One functions as the external antenna connection for the
unit’s internal cellular modem, and the other is for GPS. (The GPS port is for future functionality)
Power
 AC Power Supply (inside the NU)
 AC power cord
Physical Interface
 RJ45 ports (13)
o Paired RJ45 ports, 2 per CU served
o LAN port for Internet connection
Figure 2. NU Image