12
10. OPERATION
After completing all connections, turn on the power switch, and check to confirm that the power indicator
lights.
Note
When the heat sink temperature exceeds 105 °C (221 °F), the protection circuit begins to operate to
disconnect the output from the circuit. The disconnected output is automatically restored as soon as the
temperature returns to the normal operating range.
12. RACK MOUNTING BRACKET ATTACHMENT
To mount the BG-220 (BG-235) in a standard 19" equipment rack, use the optional MB-25B-BK or MB-25B-J
Rack Mounting Kit.
Before attaching the rack mounting bracket, remove each 2 frontmost screws on both sides of the unit. These
removed screws are not used for rack mounting.
Notes
• Rack mounting screws are not supplied with the unit. Use the screws that are appropriate for the rack.
• When mounting the unit in an equipment rack, the inside
of the rack must be sufficiently ventilated.
To achieve sufficient ventilation, also mount the optional
PF-511 Perforated Panel (1U*):
(1) at the top and the bottom of the rack, and
(2) above and below the unit.
* 1U size = 44.5 mm or 1.75" (reference size)
[MB-25B-BK]
Remove 4 plastic feet on the bottom surface.
Note that these removed screws are not used.
Attach the MB-25B-BK to the unit using the
supplied 4 screws.
Amplifier
Amplifier
Amplifier
Perforated Panel
PF-511
(1-unit size)
Mounting bracket*
Blank panel*
Tapping screw 4 x 10*
Machine screw M4 x 16*
Machine screw
M4 x 16*
Amplifier
* Component parts of MB-25B-BK
Screws removed are not used any more.
11. INSTALLATION PRECAUTIONS
Keep the amplifier over 10 cm (3.94") away from
objects that may obstruct air flow to prevent the
unit's internal temperature rise.
CAUTION
Over 10 cm (3.94")
Over 10 cm (3.94")
Over 10 cm
(3.94")