99810492; 790-6000 MHz Base Station Antennas - Romkatel

Kathrein’s Remote Electrical Tilt System
Ways of controlling the RET System:
Communication between the OMC and CCU
be sent to the site. A laptop is basically connected
to the Ethernet interface on the CCU. Alternatively,
the RS 232 interface may be used. Instead of a
CCU, a PCA can also be used for local control.
The electrical tilt can be controlled either locally or
remotely.
Local control:
The configuration of the RET system and simple
adaptation to network changes can be effected via
local control. In this case, an installation team must
Remote control:
Due to the required UMTS network optimizations,
the downtilt of an antenna’s vertical radiation
pattern has to be adjusted much more frequently
than as compared with a GSM network. To meet
this demand, a remote controlled system via the
OMC is inevitable. The Ethernet interface can be
selected for implementing remote control in a local
area network (LAN) or a wide area network (WAN).
The following transport and application protocols
are served by the CCU: TCP/IP, UDP, PPP, DHCP,
HTML and ICMP/Ping, FTP, and SNMP.
RET
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