MDS MDS 9710 Series Especificações descarregar pdf (Página 46)

38 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. D

Software upgrades are distributed as ASCII files with a “.S28” exten-

sion. These files use the Motorola S-record format. When the download

is activated, the radio’s

PWR LED flashes rapidly to confirm that a

download is in process. The download takes about two minutes.

NOTE: If a download fails, the radio is left unprogrammed and inop-

erative. This is indicated by the PWR LED flashing slowly (1

second on/1 second off). This condition is only likely if there

is a power failure to the computer or radio during the down-

loading process. The download can be attempted again when

the fault is corrected.

6.6 External Orderwire Module

During installation or troubleshooting activities, it is desirable to com-

municate by voice between personnel at the Master Station and the

Remote Station sites to coordinate their activities. An optional external

orderwire module from GE MDS (P/N 12-1297A01) is available that

can be inserted between the radio’s DATA INTERFACE and the user’s

data communication device.

Invisible place holder

Figure 15. Orderwire Adapter Module

(MDS P/N 12-1307A01)

Installation

Install the Orderwire (O/W) Module between the radio transceiver’s

DATA INTERFACE connector and the connected device. A handset

should also be connected to the associated Master Station’s orderwire

jack.

The payload data exchanges pass through the Orderwire Module unin-

terrupted until the Orderwire Module is in use. The module has a

voice-operated switch (VOX) that keys the connected transceiver when-

ever audio is picked up by a handset plugged into the RJ-11 phone jack.

Any standard telephone handset can be used or a rugged handset (P/N

HANDSET JACK

RED = ORDERWIRE ACTIVE/ TX KEYED

TO RADIO TRANSCEIVER

TO RADIO DATA DEVICE

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MDS MDS 9710 Series Especificações Página 46