User's Manual

M7X and M7R Page 4-7 Installation
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Extending the Control Head
Usually, if the radio is to be operated from a remote position, an M7 Controller is used to operate one or
more radios. The controller is a self-contained unit operating from its own power supply.
In some applications it may be desirable to extend the radio’s Control Head up to 10 metres away from
the radio. In this configuration, the Control Head continues to be powered from the radio.
To extend the Control Head:
(1) Refer to the Maintenance topic and remove the radio’s Control Head. Remove and retain (for
possible future use) the E1 and Supply cables that connected to the Control Head.
(2) At the radio, fit a blank panel in place of the Control Head. A suitable blank panel is available from
Park Air: part number 46-00000494.
(3) Under local arrangements, fit the control head into the required operating position. Fig 4-5 shows
dimensions of the Control Head.
Fig 4-5 Control Head Dimensions
(4) Using a standard Cat 5 non cross-over cable (no longer than 10 metres) connect the radio’s rear
panel RCU connector and the E1 connector at the rear of the Control Head as shown below.
Table 4-2 details the connections.
42.5
2.0
18.1
167.0
238.0
160.0
222.0
153.0
M7 Radio
Control Head
E1
Connector
Rear Panel
RCU Connector
Cable up to 10 metres long carries E1 signals
and a 24 Vdc (nominal) supply for the Control
Head (see Table 4-2)