Westermo RV-07B - Manual (Page 15)

15 6130-2200
Mounting /Removal
Before mounting or removing the unit:
This unit has one separate protective earthing terminal (marked with “symbol”), while
the unit is provided with two mains supply connectors. The grounding terminal of these
mains supply connectors is a functional earthing point only Prevent access to hazardous
voltages by disconnecting the unit from AC/DC mains supplies and all other electrical
connections. A protective earthing conductor should be connected to the protective
earthing terminal and have a cross-sectional area of at least 1.5 mm
2 . Prevent damage to
internal electronics from electrostatic discharges (ESD) by discharging your body to a
grounding point (e.g. use of
wrist strap).
Mounting
This unit should be horizon-
tally mounted with screws
in the holes located in the
left and right hand brackets on
the unit.
Connect the protective earthing conductor to the protective earthing terminal,
before connection of any AC/DC mains supply or other electrical connections.
As this unit uses convection cooling, it is important to avoid obstructions that prevent
normal vertical airflow through the unit. For this reason a clearance of 1U below and
2U above the unit is recommended. These clearance distances should be increased if
heat from another unit is likely to cause an undesirable rise in temperature. Under no
circumstances should the air temperature around the unit exceed 15 degrees C above
the operating temperature of any modem installed in it. The unit should be installed in a
cabinet that has suitable fans and filters so that good airflow is maintained without the
ingress of dirt or dust.
Removal
Disconnect all AC/DC mains supplies and other electrical connections before the remov-
al of protective earthing conductor from the protective earthing terminal.
Note:
• Always add modems from one end in the rack.
• To ensure proper galvanic connection between front panels, do not leave empty
slots between modems.