User Manual

Understanding external connections
IP-RN 8000 Installation & Commissioning Guide 35
Global Positioning System (GPS)
antenna cables
The Global Positioning System (GPS) provides the IP-RN 8000 with an
accurate clock source to synchronize network functions.
Two GPS antennas are required for redundancy and service continuity; if you
are installing a non-redundant system, only a single GPS antenna is required.
The far end of the GPS cable(s) typically use an “N-type” connector,
although other options are available.
The GPS antenna cables feed into the IP-RN 8000 through the Rox System
cabinet seal and must be connected internally to GPS surge suppressors.
See Table 32
on page 194 for cable specifications.
Backhaul connections Connect the IP-RN 8000 to the IP-RNC 8500 through a backhaul network.
Carry user data (AT to Internet) and management data between the
IP-RN 8000 to the IP-RNC 8500
Can install one, two, three, or four T1/E1 backhaul connections or one or two
10/100 Mbit/sec Ethernet backhaul connections as appropriate for the
deployment’s bandwidth and connectivity needs. the T1/E1 backhaul links
are used simultaneously providing all combined bandwidth; only a single
Ethernet backhaul link is used at a time, depending on which BIO/SC
module is active on a redundant system.
See Table 30
on page 193 for backhaul specifications.
Antenna Interface Unit (AIU) cables There are two antenna configurations that correspond to two versions of the
Antenna Interface Unit (AIU): the 6-port AIU and the 9-port AIU. This
installation guide provides procedures for installation of the 6-port AIU. In
this configuration, each radio sector has two antenna cables. One cable
carries one transmit and one receive signal. The other cable carries the
diversity receive signal that leads to a second antenna. With the 9-port AIU,
each sector has three antenna cables, two for receive and one for transmit.
Terminal cable for CLI access A COM port on a laptop PC is connected to the female DB-9 craft interface
on the active BIO/SC module to provide terminal access to the node.
Terminal access is required to complete the commissioning of the node.For
information on the DB-9 pin-out, see Table 35
on page 196.
Ethernet cable for software update at
the site
A craft Ethernet port on the BIO/SC module allows a technician to use FTP
to transfer node software releases from a laptop to the node. IP
configurations on the laptop and the Ethernet port must be made first.
Table 18
IP-RN 8000 cable connections (continued)
Cable Description