Dataradio Gemini PD 서비스 매뉴얼 - 페이지 4

{카테고리_이름} Dataradio Gemini PD에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Dataradio Gemini PD 14 페이지. Mobile radio modem

The following terms are used throughout this document.

Item

DCE

DTE

GCU

Gemini/PD

HDX

RS-232

RSS

Simplex

Definitions

Definition

Data Communications Equipment. This designation defines the direction (input

or output) of the various RS-232C interface signals. Modems are always wired as

DCE. See also DTE.

Data Terminal Equipment. This designation defines the direction (input or out-

put) of the various RS-232C interface signals. Most user equipment, as well as

PCs, are wired as DTE. See also DCE.

Gemini Control Unit board

High specs mobile radio modem. PD = Parallel decode

Half Duplex. A unit which uses separate transmit and receive frequencies, but

which may not transmit and receive simultaneously.

Industry–standard interface for low speed data transfer (EIA-RS-232E).

Radio Service Software. This software allows configuration and testing of the

Gemini/PD.

A unit which uses the same frequency for transmit and receive.

iii