Installation
• Ambient conditions
Influences on radio operation
Radio operation is affected by the following influences:
• Outside interference (EMC)
• Obstacles in the surrounding area affect the radio characteristic
To achieve optimum conditions for radio operation, observe the following points:
• Optimum radio operation depends on the radio unit → cordless phone line of sight.
• Walls act as an obstacle to the propagation of radio waves. Losses depend on the wall thickness,
construction material and reinforcement used.
• Do not place radio units and cordless phones in the immediate vicinity of TV sets, radios, CD players or
power installations (for reasons of EMC, e.g.distribution boxes, rising power lines).
• Do not place radio units and cordless phones near X-ray installations (EMC).
• Do not place radio units and cordless phones near metal partitions.
Observe the minimum distance requirements between adjacent radio units (see Installing the radio units
on page 167).
• Minimum distance between cordless phones for fault-free operation: 0.2 m. (The charging bays of the
Office 135 can be linked using connecting strips. However, operating several phones on interconnected
charging bays can lead to malfunctions.)
• Minimum distance between charging bays with cordless phones on-hook for faultfree operation: 0.2 m.
Ambient conditions
• When installing: Ensure convection (space for ventilation).
• Avoid excessive dust.
• Avoid exposure to chemicals.
• Avoid direct sunlight.
• See also technical data in Mitel DECT radio units on page 282.
Note:
If these requirements cannot be met (e.g.outdoor installation), use the appropriate protective
housing.
4.8.6.1 Installing the radio units
Do not remove the cover of the radio unit. (Warranty protection will lapse if the cover is removed)
Fit the mounting bracket (see Dimensional drawing for wall-mounting the mounting bracket dimensional
drawing for wall mounting). Observe the minimum distances (see Installation distances).
Release 7.1
167 System Manual for Mitel SMB Controller
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