Sharp VC-488NS Manual de Serviço descarregar pdf (Página 38)

Chapter 2 - Installation

Time of Day Connection

The Time of Day port outputs a message once every second. This output

is NOT user configurable.

Table 2-2: J8 Pin Connections

J 8 Connector PIN Connection, Function = Time of Day

(as viewed at the GPS connector)

Pin 1 Not used

Pin 2 TX data

Pin 3 RX data

Pin 4 DTR

Pin 5 Ground

Pin 6 DSR

Pin 7 not used

Pin 8 not used

Pin 9 not used

Use the cable provided with the Alvarion eMGW/MGW System for

connection to the ‘TOD’ port. The port configuration is described in the

Input / Output Message Format section, page 1-7.

Ground Topography

The power supply input is floating.

Voltage inputs should be left floating with reference to ground

Earth ground MUST be connected to the external case with a screw

fitting (refer to Casing Ground Connection, page 2-17).

Power Connection

The appropriate power cable for the 3.4.8 Power Connection unit is

supplied with the system. During manufacture, this cable is fitted with

a Binder connector (4-pin female) matching the ‘POWER’ connection of

the GPS Receiver.

Details of the input voltage and relevant connections are given below:

48Volt nominal (36 to 72V) DC = 4-pin Binder input connector

GPS Timing Receiver Installation and Operation Manual

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Sharp VC-488NS Manual de Serviço Página 38