4. Functional Description
Page 46 MF0121ACP_uc.docx Manual for Node AM4
4.3.6. User Interface 2 Board with Optional Features
The User Interface 2 (UI2) board is equipped on a carrier plate together with the optional
features of the Node AM4. These are the VSWR module, the Battery Backup option, and
the modem. Besides, the UI2 board offers additional USB ports and an Ethernet port.
figure 4-16 UI2 Board kit, layout
UI2 board revisions are supported by certain SW versions, i.e. new HW revisions may
not be supported by older SW versions. In case of such an incompatibility of HW and SW
the message “User Interface 2 HW failure” will be prompted.
4.3.6.1. VSWR Module Option
The VSWR module monitors the VSWR of the Node AM4 coverage port. The module
communicates with the controller through USB while measuring the forward and reverse
RF signal at the combiner output.
4.3.6.2. Battery Backup Option
The battery backup unit (BBU) including the battery pack is installed on top of the User
Interface 2 (UI2) board and located underneath the cover sheet. The BBU ensures that
the Node AM4 can log-off from a Network Management system in case the mains voltage
will be switched off.
Ethernet
connector
VSWR module (optional)
Optional
modem
Battery
Backup
option
USB connectors
USB connector
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