Contemporary Research 232-MTA Manual download pdf (Page 3)

Overview

The Contemporary Research 232-MTA is a versatile RS-232 controlled monaural TV tuner featuring high-quality

mono audio, 125-channel access in Off-Air, Cable, HRC, or IRC modes, front-panel operation and feedback, and

intelligent control. Fully programmable, the unit can restore all settings on power-up from non-volatile memory.

A list of accessible channels, called channel rings, can be stored in memory, used for convenient channel

up/down control and to control direct access to unlisted channels.

The front-panel buttons and alphanumeric display can be used for general operation and to program basic

features for tuning, RS-232 baud rate and local control. Full setup, control, and feedback is provided by RS-232.

Up to nine

232-series tuners can be controlled from a single RS-232 port. In addition, remote tuning ring channel

up and down operation can be accessed through contact closure inputs.

• Interacts with PCs and control systems via RS-232, using simple ASCII-format commands and feedback,

up to nine tuners can be linked to a single RS-232 control port

• Tunes

125 channels in off-air, CATV, HRC, or IRC modes, using true synchronous video detection and

intercarrier SAW filter

• Stores programmable tuning ring in memory to control channel access

• Provides front-panel control for A/V Mute, mode select, and channel up/down, with LED feedback

for Mute, current channel and programming mode

• Accesses tuning ring channel up/down from contact closure inputs

• Restores all operation status after loss of power from data stored in non-volatile memory

• Mutes both audio and video with front-panel LED indicator

• Delivers mono unbalanced audio at fixed volume and mute levels

• Enables and disables front-panel control via RS-232

• Mounts in 19" rack with optional RK1 or RK2 kit for dual side-by-side installation

• Firmware updateable via modem or PC software (available soon)

New Features (Rev 3.3-4.0)

• Shares new processor from 232-STS S-Video Stereo Tuner

• Adds new front-panel (12-14) and RS-232 programming modes (Q2-Q4) to match 232-STS

• Upgradeable firmware, presently updated via modem from factory, software tools available soon for

local update

• Units shipped with new processor start with serial number 229-5017-001, Rev 3.4 or higher

Serial number can be read as follows—xxx (production run) - 5017 (232-MTA) – xxx (unit number)

• Request Tune Ring and Channel Label (V3.4)

• IC-RC Remote emulation (V3.4)

• Up to nine units can be controlled from a single RS-232 control port, up to 19.2 Kb (V 3.5)

• Sending a command to Unit#0 (Zero) acts as a global command to all tuners (V4.0)

Contemporary Research 3 232-MTA Mono TV Tuner

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Contemporary Research 232-MTA Manual Page 3