OLT LTP-16N, LTP-16NT. User Manual
20
Power module installation
Depending on power supply requirements, terminals can be supplemented with either an AC power module,
220V, 50 Hz, or a DC power supply module, 48 V. Location of the power module is shown in Figure 7.
Figure 7 – Power module installation
Terminals can operate with one or two power modules. The second power module installation is necessary
when greater reliability is required. In case of using two power supply modules, it is allowed to use different
power plants for supplying (with different voltage).
Figure 8 – Power module installation
From the electric point of view, both places for power module installation are identical. In the terms of device
operation, the power module located closer to the edge is considered as the main module, and the one closer
to the centre — as the backup module. Power modules can be inserted and removed without powering the
device off. When an additional power module is inserted or removed, the device continues to operate without
reboot.