Mitel MX-ONE Installation Instruction page 6

2.4
2.5
21/1531-ASP11301 Uen C 2017-03-28
DUMMY FRONT
This section describes the dummy front in 19" cabinets.
Dummy fronts are installed at all empty positions in the 19" chassis. New boards can
be installed at these positions. Remove the dummy front at the position were the new
board is to be installed and insert the new board.
Note: All empty board positions must be covered with dummy fronts to fulfill the EMC
requirement and to be compliant with the BYB501 cooling requirements (air
flow).
Table 2 Dummy Front
Function
Front 20 mm
Figure 1: 20mm Dummy Front
CONNECTORS AND LEDS ON BOARD FRONTS
This section describes the connectors and LEDs on the boards.
The indication of board status with dual color LED is:
• Steady RED: The board is in passive state
• Flashing RED: Error state
• Alternating RED/GREEN: The board is starting up or is blocked.
• Steady GREEN: The board is active.
• Flashing GREEN: The board is active and is signaling.
Note: DC/DC-, MGU-, TLU77- and ASU-boards deviate from above. See the figures
below regarding how they differ.
Product Number
SXK 106 1020/35
I
NSTALLING BOARDS
6