Elan DTNR Installation Manual download pdf (Page 21)

ELAN HOME SYSTEMS

USER’S GUIDE AND INSTALLATION MANUAL DTNR

RS232 PROTOCOL

Connecting the DTNR to an External RS232 Controller

INTERFACE

A DB9 DSUB connector is used for connection.

Female Connector

Pin 2: Transmission Output

Pin 3: Reception Input

Pin 5: GND

SERIAL CONTROL

Port Settings:

Command Structure:

Parameters:

Baud Rate

Stop Bits

Parity

Byte Size

19200

None

Tuner

T1 or T2

Band

B1 = AM or B2 = FM

Parameters

See below

Carriage Return

HEX 0x0d or DEC 13

Parameter

Description

Seek UP = A1 or Seek Down = A0

AM = B1 or FM = B2

Frequency: FXXXX where X = 0 thru 9

Sets Presets = LXX where XX = 01 thru 30

Step UP = M1 or Seek Down = M0

Preset Up = N1 and Preset Down = N0

30 Presets: P01 to P30 P00: No Preset selected.

Queries tuner.

Q1 = query Tuner 1. Response = T1 BX PXX FXXXX SXX

Q2 = query Tuner 2. Response = T2 BX PXX FXXXX SXX

Q3 = query Tuner 1 & 2 Response =

T1 BX PXX FXXXX SXX T2 BX PXX FXXXX SXX

Note: If tuner is off the response will be: X0

Signal Lock SXX 1 = Locked and 0 = NOT

Stereo Presense SXX 1 = Stereo and 0 = Mono

S00 = no signal, no stereo

S01 = invalid

S10 = signal lock, mono

S11 = signal lock, stereo

Tuner 1 = T1 or Tuner 2 = T2

Power Command X1 = ON and X2 = OFF

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Elan DTNR Installation Manual Page 21

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