Ross DFR-8104A, User Manual, Page: 15 / 28

DFR-8104A(-C) User Manual (Iss. 03) Installation • 2–3
Installing the DFR-8104A(-C)
This section outlines how to install the DFR-8104A(-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 “
FSB-7110 Rear Support Bars and Brackets ” on page 3-3 for detailed installation
instructions.
Power Supply (PS-8102) and Power Cable
The DFR-8104A(-C) comes standard with one PS-8102 power supply and one power cable.
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 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.