Microwave Radio Communications LLC PTX127T1CG Manual De Usuario

Installation

6-8

PTX-PRO User and Technical Manual

CAUTION

Ensure that the electrical supply is protected
by over-current protection devices, as
required by the applicable electrical codes.

Check the electrical supply to be sure it can provide all the power
needed at the site without overloading. Power ratings for
equipment can be found on a rating plate, usually on the rear
panel. If necessary, consult a licensed electrician.

6.7

Grounding

CAUTION

Be sure the equipment grounding follows
applicable electrical codes.

CAUTION

Never modify a grounded power plug to
connect to an ungrounded receptacle.

The equipment must be connected to the common ground on the
installation. This common ground is often the vehicle or aircraft
ground. The ground wire should be as short as possible, and
should follow the straightest path possible.

6.8

Audio Connections

All PTX-PRO audio inputs are applied to either the front or rear
panel audio connectors.

6.8.1

Front Panel Audio Connections

Front panel AUDIO 1 and AUDIO 2 XLR connectors are used for

both Audio A inputs. Connector pin-outs are shown in

Figure 6-

Pin-out connections are shown in

Table 6-2

Figure 6-9: XLR Connector Pin-Outs

Table 6-2: XLR Connector Pin-Outs

A prefabricated cable assembly (

See Figure 6-10 on page 6-10

)

is available that splits the audio connections into two separate
cables with XLR connectors. The two connectors are labelled
Audio 1 and Audio 2. One cable assembly is included with
each PTX-PRO ordered.

Should you need additional cables, contact MRC Customer
Service.

Panel Connector Pin

Function

AUDIO 1

Ground

Live (+)

Return (-)

AUDIO 2

Ground

Live (+)

Return (-)