Ross PS-8102, User Manual, Page: 15 / 32

DFR-8110A(-C) User Manual (Iss. 03) Installation • 2–3
Installing the DFR-8110A(-C)
This section outlines how to install the DFR-8110A(-C).
Mechanical Overview
The frame mounts in the rack cabinet by means of four rack screws fastened through the front
mounting flanges. This should normally be sufficient to carry the load, including the weight of
accompanying cables. However, in certain applications such as mobile truck installations, it may
be desirable to also support the rear of the frame. Ross Video has specifically engineered the
optional FSB-7110 Rear Support Bars and Brackets to compensate for extra load stress. Refer to
the section “
Support Bars and Brackets ” on page 3-4 for detailed installation instructions.
Power Supply (PS-8102) and Power Cable
The DFR-8110A(-C) comes standard with one PS-8102 power supply, with a second optional
supply available for redundancy. For redundancy, and in applications where the equipment is used
in a critical signal path, we recommend that two power supplies be used in the DFR-8110A(-C)
frame. One power cable has been provided with each power supply ordered.
For further redundancy, each power cord should be connected to a separate power source for
protection against failure of the supply or power. Reliability will also be improved when using
redundant supplies as each supply shares the load. In the event of one power supply failure,
module power is seamlessly transferred to the other, redundant supply. Although the power
supply is “hot-swappable,” turning the power supply off, before inserting or removing it from the
frame, will increase the life span of connectors.
Of great importance to the user who may have unstable or unpredictable facility power, is the
ability of the PS-8102 to withstand input power glitches of up to 100ms in length, while still
providing uninterrupted power to the modules in the frame. This is an essential feature for
applications such as program feeds, live event feeds, or wherever a robust signal system is
required. The ability of the PS-8102 to withstand input power glitches is increased with the use of
redundant supplies.
The PS-8102 is a power factor corrected supply, capable of working with all world standards
(100-240V). The supply has an error detection circuit that will indicate the following conditions:
Table 2.1 Power Supply Status LED Descriptions
Location Color Description
Power
Supply
Green
When lit green, this LED indicates that the PS-8102 is operating normally.
Normal conditions load: 2W to 40W (recommended load >2W).
Note :
• the PS-8102 does not detect when the negative rail is faulty.
• that the PS-8102 may not detect when the fuse on the positive rail is blown
(in the case of a Dual Supply).
Flashing
Red
a
a. If the power is turned on with a “short” condition in the frame or one of the modules, the power supply will
go into a startup and shutdown sequence until the “short” is removed.
When flashing red, this LED indicates one of the following is occurring:
• there is an output over or under voltage condition on the PS-8102.
• there is no AC power; assuming that the Dual Supply is operating normally.
• there is a light load (<2W).
Off
When off, this LED indicates one of the following is occurring: the PS-8102 is
powered off or faulty.