Cable AML ITX21-100, Руководство по установке и обслуживанию

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Indoor Broadband Transmitter – ITX21-100
IM4030013-1 Rev –
9
3.0 INSTALLATION
3.1 Unpacking
Inspect shipment for obvious damage then carefully check for other possible shipping
damage such as bent or loose connections that may result in signal leakage.
If any
damage is suspected, notify Cable AML and the shipper before proceeding with
installation of the equipment.
Check the packing list against the parts shipped and verify that the correct material has
been received. Communicate any discrepancies to Cable AML immediately.
3.2 Location
All transmitters should be installed in an area with adequate ventilation to provide the
necessary airflow into the unit. The rubber feet installed on the chassis are for bench
testing convenience.
Each rack mountable chassis unit (to be installed by customer) should be assembled in
rack with at least 6 inches free space above them. This allows removal of hole plugs in
the top covers for access to the adjusting screws of the VHF processor module.
A support bar has been provided to help with the weight of the transmitter should it be
installed in a rack. It should be placed near the rear of the transmitter.
3.3 Input Voltage Requirements
Cable AML transmitters can be equipped to operate on either 120 or 240 VAC at either 50
or 60 Hz. This option is specified by customer request, and each unit is shipped
according to this specification.
3.4 Operating and Diagnostic Connections
Figure 6 shows the locations of connectors on the rear and front panels of the transmitter.
Operating Connections
•
RF Output – The transmitter's output connector on the rear panel is type N
coaxial, to which the output cable to the transmit antenna is connected.
•
VHF Input – The transmitter's input connector on the rear panel is type F
female, to which the VHF inputs are connected.
AC Power connections – This unit is equipped with an AC power cord that is wired for
single-phase operation. It is necessary to attach a plug to the power cord before putting
the unit into operation. It is important that the following color code be followed when wiring
up the transmitter!!
The BLACK or BROWN wire is HOT or MAIN lead.
The WHITE or BLUE wire is the NEUTRAL lead.
The GREEN or GREEN/YELLOW is the GROUND or EARTH lead.