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Installing the ARM in a Booster Frame
WARNING: SWITCH THE EQUIPMENT OFF AND REMOVE THE MAINS PLUG
FROM THE MAINS OUTLET BEFORE OPENING THE EQUIPMENT.
Caution: The ARM is designed to operate safely in a SM 25B Booster Frame or MXF.
Ensure that the Booster Frame or MXF is installed in accordance with the Installation
Instructions supplied with the equipment before installing the ARM.
Supplied with the ARM (LBB 2540/10):
•
Installation Instructions
•
Safety instructions
Special tools required:
•
T10 Torx screwdriver
•
T20 Torx screwdriver (for 19-inch rack mounting)
Installation procedure
1. If the ARM is to be mounted in a Booster Frame in a 19-inch rack:
- Switch off and unplug the Booster Frame from the mains (fig. 1.4).
- Loosen the four captive Torx screws 'A' (fig. 1.5).
- Slide the Booster Frame forward until it stops and lift out the cardboard top cover
(fig. 1.6).
Note: All positions in the Booster Frame are functionally identical. The ARM may be mounted in any
available position.
Note: At this point, all switches on the PCB are accessible. If the ARM is to be configured, refer to
section 1.3.
2. Insert the ARM and push it completely home (fig. 1.7).
3. Tighten the captive Torx screw on top of the front panel (fig. 1.8, detail A).
4. The SM 25B Booster Frame is connected to the ARM via a flexible 16-pole system cable.
This IDC flat-cable runs from the Booster Frame PCB along the top of the Booster Frame
(fig. 1.9 detail B)
Caution: Unused module positions in the Booster Frame must be covered with a blank-
ing panel to ensure that the forced air cooling functions correctly (fig. 1.10).
5. Replace the cardboard top cover and slide the Booster Frame back into the 19-inch rack
(or Table-top Housing) and tighten the four Torx screws (fig. 1.11).
Caution: The cardboard top cover must be replaced before sliding the Booster Frame
back into the rack to ensure that the forced air cooling functions correctly.
1.2
Connecting the ARM
Note: Refer to section 1.1 for the location and description of the ARM rear panel connectors.
Caution: When wiring inputs to the ARM in a 19-inch rack, ensure that the cables are
of sufficient length to allow the Booster Frame to be withdrawn on its runners (approx.
30 cm, 12 in.).
9
Eng
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