Product Description

General function, construction and units
DN991444 © Nokia Corporation Draft 63 (98)
Issue 3-0 en Draft Nokia Proprietary and Confidential
6.5 Transmission unit (VXEA, VXTx, VXRB)
This section provides the technical information on the transmission units used in
the Nokia MetroSite EDGE Base Station. The different transmission
configurations that can be built with the transmission units described here are
presented in Chapter 4. For the transmission interface protocols and standards
refer to Section 8.4.5 of this document.
All transmission units can be managed locally with the Nokia SiteWizard
software.
6.5.1 Unit alternatives for radio link transmission
The following radio link transmission units are available for the Nokia MetroSite
EDGE Base Station:
FXC RRI (VXRB)
• Maximum 16 x 2 Mbit/s capacity
• Support for two microwave radio outdoor units (two TNC connectors)
• Grooming, branching and loop protection support
• Cross-connection at 8 Kbit/s level
FXC RRI transmission units are used with Nokia MetroHopper Radio and Nokia
FlexiHopper microwave radio. For more information on the radios and
transmission units, refer to Nokia MetroHopper Radio Product Description and
Nokia FlexiHopper microwave radio Product Description. The transmission unit
is connected to the Nokia MetroHopper Radio with a single coaxial cable,
referred to as Flexbus (FB). For more information on Flexbus, refer to Chapter 8 ).
11 ECO1 24 ECO3
12 +3 V 25 ECO4
13 ECO2 26 +5 V
Table 5. Pin configurations of the EAC connector (Continued)
Pin number Signal Pin number Signal