User's Manual

In the combination with redundancy option "Redundant power supply lines", two PSMs
each are supplied by one power supply line.
3.5.6.2 Redundant power supply lines
The power supply continues to be ensured by a redundant power supply line on site and
secures the operation of the DIB-R5, even if a supply line should fail or the required
voltage range is underrun. This is particularly meaningful in difficult environments in
which, for example, the infrastructure on site is unreliable. With this redundancy option,
one power supply line supplies one AC Power Distribution Module (APDM) in each case.
If this redundancy option is selected, a second power supply line must be taken into
account in the site planning.
3.5.7
Redundant connection to the transport network
With the redundant connection to the transport network, the connection to all network
components continues to be ensured in case of a failure of the IT infrastructure (e.g.
router).
3.5.8
Redundant synchronization (GNSS, PTP)
The clock and time signals required for the synchronization of base stations are being
obtained in parallel via a connected GNSS antenna and as an alternative via the Preci-
sion Time Protocol (PTP). If the satellite signal should no longer be available due to
external influences, a switch is automatically made to the network time.
Product description
Redundancy options > Redundant synchronization (GNSS, PTP)
DIB-R5 flexibleTx
61Operation Manual 90DIBR5flexibleTxOM02 - 1.2